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Journal articles on the topic 'Wastewater effluent'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 June 2025

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1

Adam, Abdeljalil, Nabil Saffaj, and Rachid Mamouni. "Classification of industrial wastewater discharged into effluent pits, an approach toward a sustainable recycling: case study of a water treatment facility in Morocco." E3S Web of Conferences 364 (2023): 02001. http://dx.doi.org/10.1051/e3sconf/202336402001.

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Most water treatment facilities collect industrial wastewater in separated effluent pits. This discharge strategy has been proposed by several previous research as a solution to the problems of untreated wastewater being withdrawn further into open sea or rivers, which aims to prevent the pollution of water supplies. However, this solution might also have far-reaching ecological and environmental negative consequences. In this research we have assessed the effluent’s Physico-chemical characterization over the duration of one year, utilizing a specific statistical methodology for a water treatm

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2

Beltifa, Asma, Sana Alibi, and Hedi Ben Mansour. "Monitoring hospital wastewaters for their probable genotoxicity." Journal of Water and Health 18, no. 1 (2019): 1–7. http://dx.doi.org/10.2166/wh.2019.103.

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Abstract Hospitals' effluents contain a considerable amount of chemicals. Considering the significant volume of wastewater discharged by hospitals, the presence of these chemicals represents a real threat to the environment and human health. Thus, the aim of this study was to evaluate the in vivo and in vitro genotoxicities of three wastewater effluents collected from Tunisian hospitals. The liver of Swiss albino male mice, previously treated with different doses of the hospital wastewaters, was used as a model to detect DNA fragmentation. Our results showed all the hospital effluents caused s

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Al-Khirbash, Bassim, Saif Al-hakimi, and Hani Al-Aswadi. "Impact of wastewaters on groundwater quality of Bani Al-Hareth and Arhab areas in northern Sana’a city, Yemen." مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا 2, no. 1 (2024): 16–29. http://dx.doi.org/10.59628/jast.v2i1.578.

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The purpose of this research is to determine the impacts of wastewater effluents on groundwater quality of the northern suburbs of Sana’a city. Fourteen duplicate groundwater and wastewater samples were collected from the study area and analyzed. The groundwater samples were analyzed for major elements, and anionic and cationic groups using Atomic Absorption Spectrophotometer (AAS). The wastewater samples were analyzed for Total Coliform (TC), Fecal Coliform (FC), and oxygen demands. For characterizing the groundwater and wastewater qualities of the study area, analysis results were tabulate

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4

Hamoda, Mohamed F., and Saed M. Al-Awadi. "Wastewater management in a dairy farm." Water Science and Technology 32, no. 11 (1995): 1–11. http://dx.doi.org/10.2166/wst.1995.0387.

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Field sampling and laboratory experimentation were conducted on wastewater effluent generated at a dairy farm in order to characterise the wastewater, evaluate existing primary treatment facilities, and examine an appropriate wastewater treatment system to produce good quality effluents. It has been found that the farm contributes effluents containing considerable loads of organics, solids and nutrient pollutants. Existing treatment facilities which are limited to batch-operated primary settling tanks, are not capable of producing good quality effluent. Experimentation on an aerobic, suspended

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Yıldız, G., G. Insel, E. U. Cokgor, and D. Orhon. "Respirometric assessment of biodegradation for acrylic fibre-based carpet finishing wastewaters." Water Science and Technology 55, no. 10 (2007): 99–106. http://dx.doi.org/10.2166/wst.2007.312.

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The paper evaluates biodegradation characteristics of wastewaters generated from acrylic fibre-based carpet processing and manufacturing. It involves detailed characterisation, respirometric modelling and kinetic description of dyeing and softening wastewater streams and the composite effluent. The wastewaters exhibit different COD content and fractionation. The resulting composite effluent has a total COD of 775 mgL−1, predominantly soluble and with a biodegradable fraction of 86%. In respirometric studies, the OUR profiles can only be calibrated with a dual hydrolysis model with rates signif

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6

Fitamo, Temesgen, Olli Dahl, Emma Master, and Torsten Meyer. "Biochemical methane potential of kraft bleaching effluent and codigestion with other in-mill streams." February 2016 15, no. 2 (2016): 80–88. http://dx.doi.org/10.32964/tj15.2.80.

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A biochemical methane potential assay was conducted to investigate the anaerobic digestibility of bleaching effluent from hardwood kraft pulping and the potential of codigestion with other effluents from an integrated pulp and paper mill. Four in-mill streams were tested individually and in combination: total bleaching effluent, alkaline bleaching effluent, kraft evaporator condensate, and chemithermomechanical pulping effluent. The total bleaching effluent, consisting of the chlorine dioxide bleaching and alkaline bleaching effluents, exhibited the highest potential for organic matter degrada

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Gotvajn, A. Žgajnar, and J. Zagorc-Končan. "Hazard identification of pharmaceutical wastewaters using biodegradability studies." Water Science and Technology 47, no. 10 (2003): 197–204. http://dx.doi.org/10.2166/wst.2003.0574.

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A reliable wastewater characterization is an integral part of treatment and management strategies for industrial effluents. This is especially true for the pharmaceutical industry, which exhibits significant differences in its line of activity, generating effluents of very specific and complex natures. Any hazard or risk assessment of wastewater and/or determination of its treatability must include an evaluation of its degradability. Usually various non-standardized laboratory or pilot-scale long-term tests are run by measuring summary parameters for several days to determine the biodegradatio

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8

Olmez-Hanci, T., S. Dogruel, A. D. Allar Emek, et al. "Performance of ozone and peroxone on the removal of endocrine disrupting chemicals (EDCs) coupled with cost analysis." Water Science and Technology 82, no. 4 (2020): 640–50. http://dx.doi.org/10.2166/wst.2020.339.

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Abstract Micropollutants such as endocrine disruptors are one of the most important groups of chemicals polluting water resources. Conventional treatment systems may not be effective for the removal of endocrine disrupting chemicals (EDCs), and the fate of these chemicals should be carefully monitored in the effluent of wastewater treatment plants (WWTPs). Additional treatment methods such as advanced oxidation processes can be used for the removal of endocrine disruptors. This study presents the existence of endocrine disruptors in 4 different effluents: (i) municipal WWTP effluent, (ii) text

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9

Somogyi, Viola, Viktória Pitás, Kinga M. Berta, and Róbert Kurdi. "Red Mud as Adsorbent to Recover Phosphorous from Wastewater Streams." Sustainability 14, no. 20 (2022): 13202. http://dx.doi.org/10.3390/su142013202.

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Background: Phosphorous (P) is an essential nutrient with finite and non-renewable resources; however, it can cause eutrophication in freshwater. The use or storage of red mud (RM), a by-product of alumina production with high iron and aluminium content, poses another environmental issue. Objective: This paper examines the possibility of P recovery from various wastewaters and landfill leachate with RM. Methods: Pulverized, on-site pre-treated red mud was used. Synthetic P solution, poultry wastewater effluent, the spiked effluent of a municipal wastewater treatment plant and landfill leachate

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10

M. El-Feky, Ahmed, Mohamed Saber, Mahmoud M. Abd-el-Kader, et al. "Comprehensive environmental impact assessment and irrigation wastewater suitability of the Arab El-Madabegh wastewater treatment plant, ASSIUT CITY, EGYPT." PLOS ONE 19, no. 2 (2024): e0297556. http://dx.doi.org/10.1371/journal.pone.0297556.

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The presence of a wastewater treatment plant in the Arab El-Madabegh region, which discharges excessive amounts of raw effluent toward the nearby farming fields, is the area’s main issue. Examining the harmful implications of raw effluent releases on groundwater quality, determining if treated wastewater effluent complies with regulations for discharge into the aquatic environment, and assessing irrigation appropriateness by the effluent are the main goals of this work. In order to accomplish these targets, twelve treated effluent samples from the Arab El-Madabegh wastewater treatment plant we

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Casimiro, S., and M. L. Fidalgo. "Performance of the freshwater shrimp <i>Atyaephyra desmarestii</i> as indicator of stress imposed by textile effluents." Web Ecology 7, no. 1 (2007): 35–39. http://dx.doi.org/10.5194/we-7-35-2007.

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Abstract. Textile plants consume large volumes of water and produce a great amount of wastewaters, which can be important sources of toxic discharges in receiving environments. The objective of this study was to evaluate the acute toxicity of textile effluents on the freshwater shrimp A. desmarestii. A whole effluent toxicity test procedure was used to determine the aggregate toxicity of three samples taken before and after wastewater treatment in a textile mill. The following LC50 − 48 h values (%, v/v) were calculated: Untreated effluent −29% effluent (sample 1), 22% effluent (sample 2), and

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Kulkarni, Manjusha, and Pragati Thakur. "Photocatalytic Degradation of Real Textile Industrial Effluent under UV Light Catalyzed by Metal Oxide Nanoparticles." Nepal Journal of Science and Technology 15, no. 2 (2015): 105–10. http://dx.doi.org/10.3126/njst.v15i2.12124.

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The domestic use and industrial activity, especially in developing countries, produce large amount of wastewater. This wastewater when disposed into natural channels may lead to high pollution risk. There are different methods for wastewater treatment one of them is Advanced Oxidation Processes (AOPs), still it has some limitations. The present work has been concentrated on the degradation of real textile industrial effluent named as Efluent1. The said Effluent1 was collected from textile industry from Echalkaranji; Maharashtra state was subjected to photocatalytic treatment using photocatalys

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13

Asaithambi, Perumal, Mamuye Busier Yesuf, Rajendran Govindarajan, N. M. Hariharan, Perarasu Thangavelu, and Esayas Alemayehu. "A Review of Hybrid Process Development Based on Electrochemical and Advanced Oxidation Processes for the Treatment of Industrial Wastewater." International Journal of Chemical Engineering 2022 (August 8, 2022): 1–15. http://dx.doi.org/10.1155/2022/1105376.

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Nowadays, increased human activity, industrialization, and urbanization result in the production of enormous quantities of wastewater. Generally, physicochemical and biological methods are employed to treat industrial effluent and wastewater and have demonstrated high efficacy in removing pollutants. However, some industrial effluent and wastewater contain contaminants that are extremely difficult to remove using standard physicochemical and biological processes. Previously, electrochemical and hybrid advanced oxidation processes (AOP) were considered a viable and promising alternative for ach

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14

Giri, R. R., H. Ozaki, T. Okada, S. Takikita, S. Taniguchi, and R. Takanami. "Water matrix effect on UV photodegradation of perfluorooctanoic acid." Water Science and Technology 64, no. 10 (2011): 1980–86. http://dx.doi.org/10.2166/wst.2011.825.

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The widespread detection of perfluorinated compounds (PFCs) in the water environment has been a concern for the last several years, while effluents from wastewater treatment facilities are the major sources of these compounds. Even advanced oxidation technologies (AOTs) are not useful for mineralization of the compounds due to their very high stability. Photochemical techniques using particularly vacuum UV (VUV) have been found to be very promising in this regard. But the use of VUV in UV-based AOTs has still not progressed much. Moreover, the impact of water quality on PFCs photomineralizatio

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15

Gökçekuş, Hüseyin, Youssef Kassim, Augustine Gbollie George, and Ruth Filla Morrison. "Physicochemical properties of wastewater effluents from selected wastewater treatment plants." Future Technology 2, no. 1 (2023): 62–70. http://dx.doi.org/10.55670/fpll.futech.2.1.5.

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The majority of garbage that is dumped into the environment is the consequence of industrial activity, and this waste contains toxic and dangerous substances that have properties. Untreated industrial effluents have repeatedly affected the environment and human health. Additionally, the aim of this review is to determine if water treatment conforms to DWAF and USEPA criteria and to evaluate specific wastewater treatment facilities. Additionally, the effluent from companies was assessed after being collected utilizing composite sampling methods. The findings recognized pH, rivers, and industria

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16

Cardenes, Iliana, Jim W. Hall, Nick Eyre, Aman Majid, and Simon Jarvis. "Quantifying the energy consumption and greenhouse gas emissions of changing wastewater quality standards." Water Science and Technology 81, no. 6 (2020): 1283–95. http://dx.doi.org/10.2166/wst.2020.228.

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Abstract Regulations to ensure adequate wastewater treatment are becoming more stringent as the negative effects of different pollutants on human health and the environment are understood. However, treatment of wastewater to remove pollutants is energy intensive, so has added significantly to the operation costs of wastewater treatment plants. Analysis from six of the largest wastewater treatment works in South East England reveals that the energy consumption of these treatment works has doubled in the last five years due to expansions to meet increasingly stringent effluent standards and popu

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17

Ranjan, Ram. "A Potential PES Mechanism for Agroforestry-Led Industrial Wastewater Remediation Using Short-Rotation Trees." Water Economics and Policy 07, no. 02 (2021): 2150006. http://dx.doi.org/10.1142/s2382624x21500065.

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Industrial effluents and municipal wastewaters are increasingly finding their way into freshwater bodies, posing serious health and environmental challenges. In this paper, the potential for industrial wastewater remediation through agroforestry is explored for a peri-urban farming region in India. Farmers are incentivized under a payment for ecosystem services (PES) mechanism to convert their farmlands into poplar-based agroforestry and utilize industrial effluents for irrigating trees. Additional income can be derived through sale of poplar timber which enhances the attractiveness of such a

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18

Janahi, Essam M., Sakina Mustafa, Saba F. D. Parkar, Humood A. Naser, and Zaki M. Eisa. "Detection of Enteric Viruses and Bacterial Indicators in a Sewage Treatment Center and Shallow Water Bay." International Journal of Environmental Research and Public Health 17, no. 18 (2020): 6483. http://dx.doi.org/10.3390/ijerph17186483.

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The incidence of enteric viruses in treated wastewater and their potential release into the environment or use for agriculture are very critical matters in public health. In our study, PCR (polymerase chain reaction) analysis of enteric viruses was performed on 59 samples of influents and effluents collected from Tubli wastewater treatment plant (Water Pollution Control Center (WPCC)) and Tubli Bay, where the effluents were discharged, in Kingdom of Bahrain during two sampling periods. Four clinically essential waterborne enteric viruses were examined: enterovirus (EV), hepatitis A virus (HAV)

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19

Maremane, Sekato, Gladys Belle, and Paul Oberholster. "Assessment of Effluent Wastewater Quality and the Application of an Integrated Wastewater Resource Recovery Model: The Burgersfort Wastewater Resource Recovery Case Study." Water 16, no. 4 (2024): 608. http://dx.doi.org/10.3390/w16040608.

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Rivers in Africa have experienced dire pollution as a result of the poor management of wastewater effluent emanating from water resource recovery facilities (WRRFs). An integrated wastewater resource recovery model was developed and applied to identify ideal wastewater resource recovery technologies that can be used to recover valuable resources from a mixture of wastewater effluents in a case study in the Burgersfort WRRF in the Limpopo province, South Africa. This novel model incorporates the process of biological nutrient removal (BNR) with an extension of conventional methods of resource r

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Wang, Jianxing, Kun Li, Dawei Yu, et al. "Comparison of NF membrane fouling and cleaning by two pretreatment strategies for the advanced treatment of antibiotic production wastewater." Water Science and Technology 73, no. 9 (2016): 2260–67. http://dx.doi.org/10.2166/wst.2016.011.

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The nanofiltration (NF) membrane fouling characteristics and cleaning strategies were investigated and compared for treating membrane bioreactor (MBR) effluent and MBR-granular activated carbon (GAC) effluent of an antibiotic production wastewater by DK membrane. Results showed that the fouling of treating MBR effluent was more severe than that of treating MBR-GAC effluent. After filtering for 216 h, the difference of membrane flux decline was obvious between MBR effluent and MBR-GAC effluent, with 14.9% and 10.3% flux decline, respectively. Further study showed that organic fouling is the mai

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21

Liu, J., and M. Tang. "Wastewater management approach in an industrial park." Water Science and Technology 2017, no. 2 (2018): 546–51. http://dx.doi.org/10.2166/wst.2018.160.

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Abstract Many industrial parks adopt a two-tier wastewater management framework whereby tenants and the park are required to build satellite and centralized wastewater treatment facilities, respectively. Due to the diversity of industrial wastewaters, the treatment process scheme in the public centralized wastewater treatment plant (WWTP) may not suit the characteristics of all effluents discharged from the tenants. In consideration of varying wastewater biodegradability, the treatment scheme in a centralized WWTP is advised to install two series of treatment processes. In detail, various effl

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22

Grimason, A. M., H. V. Smith, G. Young, and W. N. Thitai. "Occurrence and removal of Ascaris sp. ova by waste stabilisation ponds in Kenya." Water Science and Technology 33, no. 7 (1996): 75–82. http://dx.doi.org/10.2166/wst.1996.0124.

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A study was conducted to determine the occurrence of Ascaris sp. ova in municipal wastewater and their removal by a variety of waste stabilisation pond systems in the republic of Kenya. A total of 52 wastewater samples were examined for the presence of ova, comprising 10 raw wastewater and 42 pond effluent samples over a two month period during 1990. Ascaris sp. ova were detected in 6 out of 10 designated pond systems examined. In raw wastewater, ova concentrations ranged from 17.5 to 133.3 ova/l and in pond effluents from 0.7 to 88.9 ova/l. Although the majority of ova were removed in primary

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Filipic, M., and M. J. Toman. "Genotoxicity of influents and effluents of the wastewater treatment plant." Water Science and Technology 34, no. 7-8 (1996): 9–14. http://dx.doi.org/10.2166/wst.1996.0595.

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Wastewaters are treated through different processes of wastewater treatment procedures. Nevertheless they often contain mutagens especially when the proportion of industrial wastewater in comparison to municipal wastewater is high. In this study we evaluated mutagenic potential of influents and effluents from a wastewater treatment plant that is processing both industrial and domestic wastewater. The mutagenicity of XAD-2 extracts of influent and effluent was evaluated by means of Ames test using S. typhimurium strains TA100 and TA98 in the presence and in the absence of metabolic activation.

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Qi, Wang, and Hu Jiangyong. "NDMA formation potential removal in treated effluent by UV/H2O2 process." Journal of Water Reuse and Desalination 6, no. 1 (2015): 156–66. http://dx.doi.org/10.2166/wrd.2015.094.

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NDMA formation from treated wastewater is one of the concerns in water reuse. This study focused on NDMA formation potential (NDMAFP) removal in wastewater treated effluent by UV/H2O2 technology. A UV/H2O2 system was tested for the removal performance on both organic precursors and NDMAFP. The system consisted of a low pressure ultra-violet (LPUV) with an intensity of 2 mW/cm2 and a H2O2 dosage of 100 ppm. Reaction time was 60 minutes. Two types of wastewater treated effluents were collected: activated sludge process (ASP) effluent and membrane bio-reactor (MBR) effluent. Results showed effici

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Rahaman, Md Shiblur, Fozia Momotaz, Afrida Nurain, Protima Sarker, and Sahoko Ichihara. "INVESTIGATION OF ETP FACILITIES AND THE INDUSTRIAL EFFLUENTS QUALITY: A CASE STUDY IN NOAKHALI INDUSTRIAL AREA, BANGLADESH." Present Environment and Sustainable Development 14, no. 2 (2020): 151–62. http://dx.doi.org/10.15551/pesd2020142012.

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Untreated wastewater disposal from industries has been a crucial environmental issue for developing countries like Bangladesh. The current study aims to investigate the status of Effluent Treatment Plant (ETP) and the quality of effluents in the Noakhali industrial area, Bangladesh. Total 10 industries were surveyed and the ETP status showed that about 30% of industries do not have ETP facilities and only 30% of industries use their ETP for the treatment of the effluents where the rest of the industry’s ETPs were under construction or exit but not used. Effluent samples were collected from sev

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Sala, Mireia, and M. Carmen Gutiérrez-Bouzán. "Electrochemical Techniques in Textile Processes and Wastewater Treatment." International Journal of Photoenergy 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/629103.

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The textile industry uses the electrochemical techniques both in textile processes (such as manufacturing fibers, dyeing processes, and decolorizing fabrics) and in wastewaters treatments (color removal). Electrochemical reduction reactions are mostly used in sulfur and vat dyeing, but in some cases, they are applied to effluents discoloration. However, the main applications of electrochemical treatments in the textile sector are based on oxidation reactions. Most of electrochemical oxidation processes involve indirect reactions which imply the generation of hypochlorite or hydroxyl radical in

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Tebai, Larbi, and Ioannis Hadjivassilis. "Soft Drinks Industry Wastewater Treatment." Water Science and Technology 25, no. 1 (1992): 45–51. http://dx.doi.org/10.2166/wst.1992.0008.

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Soft drinks industry wastewater from various production lines is discharged into the Industrial Effluent Treatment Plant. The traditional coagulation/flocculation method as first step, followed by biological treatment as second step, has been adopted for treating the soft drinks industry wastewaters. The performance of the plant has been evaluated. It has been found that the effluent characteristics are in most cases in correspondence with the requested standards for discharging the effluent into the Nicosia central sewerage system.

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Hamoda, Mohamed F., and Saed M. Al-Awadi. "Improvement of effluent quality for reuse in a dairy farm." Water Science and Technology 33, no. 10-11 (1996): 79–85. http://dx.doi.org/10.2166/wst.1996.0664.

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This study examined the chemical treatment of wastewaters from a dairy farm in order to improve effluent quality and evaluated the reuse of treated effluent in irrigation. An extensive sampling and analysis program was conducted over a period of one year to determine wastewater characteristics at the plant. It has been found that the wastewater COD, BOD, solids, nitrogen and phosphorus content are relatively high but daily variations in pollution loads are not considerably high. Waste treatment in primary settling tanks was found to be insufficient since the effluent quality cannot satisfy the

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Kwarciak-Kozłowska, Anna, Lucyna Sławik-Dembiczak, and Bartłomiej Bańka. "Phycoremediation of Wastewater: Heavy Metal and Nutrient Removal Processes." Ochrona Srodowiska i Zasobów Naturalnych 25, no. 4 (2014): 51–54. http://dx.doi.org/10.2478/oszn-2014-0026.

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Abstract Phycoremediation is the use of algae for the removal or biotrans-formation of pollutants from wastewater. The study is a novel at-tempt to integrate nutrient (N and P) removal and some heavy met-als (iron, manganese and zinc) bioaccumulation from municipal wastewater using two microalgae species: Chlorella vulgaris and Scenedesmus armatus. The Chlorella vulgaris showed higher re-moval of total nitrogen (TN) both in influent and effluent waste water than Scenedesmus armatus. Nevertheless, more than 51% of total phosphorus (TP) in effluent and 36% in influent wastewaters were removed by

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Nyholm, N. "Environmental Impact Assessment and Control of Marine Industrial Wastewater Discharges." Water Science and Technology 25, no. 11 (1992): 449–56. http://dx.doi.org/10.2166/wst.1992.0325.

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Wastewaters from the chemical industry may contain a large number of both known/identified and unknown/not identified chemical substances, and the composition of the effluents may vary greatly from plant to plant. Usually only a minor fraction of the chemicals present are identified and adequate environmental property data may be available only for a small number of these. Effluent characterizations in terms of summary parameters are therefore necessary to complement chemical specific characterizations, but the selection of suitable summary parameters other than traditionally wastewater parame

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Chan, Carmen K. M., Curie Park, King Ming Chan, Daniel C. W. Mak, James K. H. Fang, and Denise M. Mitrano. "Microplastic fibre releases from industrial wastewater effluent: a textile wet-processing mill in China." Environmental Chemistry 18, no. 3 (2021): 93. http://dx.doi.org/10.1071/en20143.

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Environmental contextMicroplastic fibres (MPFs) released from textiles are routinely found throughout the environment as an indicator of human impacts. The presence of MPFs in industrial wastewater effluents shows that attention should be placed not only on domestic release but also on the upstream processes of textile production. In the context of global MPF release, the ability to target and treat industrial effluents may significantly reduce a potentially major point source. AbstractMicroplastic fibres (MPFs) released from textiles are routinely found throughout the environment indicating h

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Quanrud, D. M., M. M. Karpiscak, K. E. Lansey, and R. G. Arnold. "Behavior of organic carbon during subsurface wetland treatment in the Sonoran Desert." Water Science and Technology 44, no. 11-12 (2001): 267–72. http://dx.doi.org/10.2166/wst.2001.0839.

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We examined the fate of organics during wetland treatment of secondary effluent and groundwater (control) flows in parallel, research-scale, subsurface-flow (SSF) wetland raceways at the Constructed Ecosystem Research Facility (CERF) located in Tucson, Arizona. The CERF facility enabled us to distinguish experimentally among effects on effluent quality due to season-dependent processes of evapotranspiration (ET) and wetlands-derived production of organics. Organics of wastewater and wetlands origin were compared in terms of their contributions to dissolved organic carbon (DOC) in wetland efflu

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G, Pawale R., and Yannawar V. B. "Uses of Urban Sewer Water for Agriculture in Nanded City, Maharashtra, India." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 387–91. http://dx.doi.org/10.22214/ijraset.2024.65053.

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Abstract: Estimating the effluent's quality is crucial for much wastewater research, as wastewater's chemical and physical characteristics influence its amount and usability. Field observations regarding the source or circumstances of wastewater occurring, the source of pollution, and other relevant factors that may impact wastewater quality are considered when assessing wastewater quality. The sustainability of wastewater for use is evaluated based on factors including pH, EC, TDS, hardness, total alkalinity, chloride, nitrate, sodium, and potassium. The assessment of sewer sustainability for

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Sindikubwabo, Theoneste, Martin Vincent Nsanzumukiza, and François Xavier Nshimiyimana. "The Effluent Quality Discharged and Its Impacts on the Receiving Environment Case of Kacyiru Sewerage Treatment Plant, Kigali, Rwanda." International Journal of Environmental & Agriculture Research 6, no. 2 (2020): 20–29. https://doi.org/10.5281/zenodo.3692398.

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<strong><em>Abstract</em></strong><strong>—</strong> <em>The study evaluates the performance of Kacyiru Sewage Treatment Plant and its effluent impacts on the receiving wetland. Influent and effluent wastewaters as well as receiving wetland water qualities were measured from April to September 2019, at Kacyiru </em><em>estate. The average removal efficiency (%) of the parameters such as TN, TP, COD, BOD<sub>5</sub> were recorded as 46.57; 61.49; 50.51; 66.79 respectively. The</em><em> parameters such as pH, TDS, temperature value, were recorded within the prescribed limit of Rwanda stand

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Osuoha, J. O., and E. O. Nwaichi. "Physicochemical Characterization of a liquid Effluent from a Refinery." Journal of Applied Sciences and Environmental Management 23, no. 10 (2019): 1779–82. http://dx.doi.org/10.4314/jasem.v23i10.2.

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The physicochemical profile of wastewater from a Refinery in the Niger Delta was evaluated to ascertain efficiency of wastewater treatment methods applied using standard analytical methods. In all samples, temperature ranged between 26.45 – 28.65 º C while the pH values of the untreated and treated wastewater samples were 8.39 ± 0.04 and 7. 82 ± 0.02 respectively. Total dissolved solids and observed total hydrocarbon levels gave maximum values of 172 mg/L and 11.35 mg/L respectively. The turbidity values for untreated and treated wastewater samples were 7.55 ± 0.08 and 3.49 ± 0.01 NTU respecti

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McCuin, Randi M., and Jennifer L. Clancy. "Occurrence of Cryptosporidium oocysts in US wastewaters." Journal of Water and Health 4, no. 4 (2006): 437–52. http://dx.doi.org/10.2166/wh.2006.0028.

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Wastewater samples collected from ten wastewater facilities across the US were analyzed to determine the occurrence of indigenous Cryptosporidium oocysts using methods based on modifications of USEPA Method 1622. Wastewater facilities participating in this study ranged in size from 0.6 to 193 mgd average daily flow. A total of 289 wastewater samples were analyzed over a 15-month period. ColorSeed is a commercial product containing gamma-irradiated Cryptosporidium oocysts that have been permanently stained with a Texas Red dye. ColorSeed was used as an internal control with each sample to asses

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Gersberg, R. M., B. V. Elkins, and C. R. Goldman. "Wastewater Treatment by Artificial Wetlands." Water Science and Technology 17, no. 4-5 (1985): 443–50. http://dx.doi.org/10.2166/wst.1985.0150.

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This report describes studies of artificial wetlands at Santee, California which demonstrate the capacity of these systems for integrated secondary treatment (BOD and suspended solids removal) and advanced treatment (nitrogen removal) of municipal wastewater effluents. When receiving a blend of primary (1°) and secondary (2°) wastewaters at a blend ratio of 1:2 (6 cm per day 1° : 12 cm per day 2° ), mean removal efficiencies for a complete year of operation from July, 1982 through July, 1983 were 80% for total nitrogen (TN) and 80% for total inorganic nitrogen, with the mean inflow TN level of

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Neela, Acharya, Thakur Chandrakant, and Chaudhari Parmesh Kumar. "Sequential Batch Reactor for Bio Degradation of Organic Wastewater: A Review." International Journal of ChemTech Research 13, no. 1 (2020): 11–24. http://dx.doi.org/10.20902/ijctr.2019.130102.

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Wastewater treatment is challengeable in today’s scenario, as it contains many types and varying physical and chemical pollutants which enormously effect the environment and its living beings. The current review elaborates treatment of various organic effluents using sequential batch reactor (SBR). Reactor operating conditions like anaerobic, anoxic and aerobic in single or mixed forms have been covered in the review. Literatures say that SBR can be used to treat many organic, industrial and municipal wastewater (MWW) successfully. Strict effluent characteristics from government force the indi

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Yirgu, Zenebe, Seyoum Leta Asfaw, Ahmed Hussen Dekebo, Mohammed Mazharuddin Khan, and Temesgen Aragaw. "Simultaneous Phycoremediation and Lipid Production by Microalgae Grown in Non-Sterilized and Sterilized Anaerobically Digested Brewery Effluent." Sustainability 15, no. 21 (2023): 15403. http://dx.doi.org/10.3390/su152115403.

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Microalgae have the ability to utilize nutrients present in wastewater and generate biomass that is abundant in carbohydrates, lipids, and proteins. The ability of microalgae to integrate wastewater management and biofuel production makes them a promising solution for enhancing environmental sustainability. The objective of this study was to assess the potential of local microalgae, Scenedesmus sp., to simultaneously remediate wastewater and produce lipids. The microalgae were cultivated in anaerobically digested brewery effluent, both sterilized and non-sterilized, to evaluate their phycoreme

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Melese, Meseretu. "Textile Wastewater and Treatment Technologies: A Review." OMO International Journal of Sciences 3, no. 1 (2020): 33–55. http://dx.doi.org/10.59122/134a47f.

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Textile industry is one of the most common and essential sectors in the world and it is responsible for one of the major environmental pollution problems in the world because it releases undesirable dye effluents. Textile wastewater contains dyes mixed with various contaminants at a variety of ranges. The toxic and carcinogenic effect of untreated textile effluent is well understood. The decolorization and detoxification of industrial dye effluents is most important aspect and is major concern to meet environmental regulations. This paper presents a review of literature on characteristics, com

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Stergar, V., J. Zagorc-Končan, and A. Zgajnar-Gotvanj. "Laboratory scale and pilot plant study on treatment of toxic wastewater from the petrochemical industry by UASB reactors." Water Science and Technology 48, no. 8 (2003): 97–102. http://dx.doi.org/10.2166/wst.2003.0457.

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This research concentrates on the development of an integrated approach to evaluate the possibility of treating very concentrated (COD = 15–20 g/l) and toxic wastewater (nitro-organic effluent) from the petrochemical industry in UASB reactors. A newly developed method utilising a modified Micro-Oxymax respirometer was used to (1) evaluate the inhibitory effects of varying concentrations of nitro-organic effluent on anaerobic granular sludge and (2) to make the proposal of operational parameters for the start up of the continuous process. Subsequently, the continuous tests were undertaken using

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Gomes, Daniela, Mafalda Cardoso, Rui C. Martins, Rosa M. Quinta-Ferreira, and Lícinio M. Gando-Ferreira. "Removal of a mixture of pharmaceuticals sulfamethoxazole and diclofenac from water streams by a polyamide nanofiltration membrane." Water Science and Technology 81, no. 4 (2020): 732–43. http://dx.doi.org/10.2166/wst.2020.166.

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Abstract Wastewater treatment plants are not specially designed to remove pharmaceutically active compounds (PhACs), since these substances are toxic and bio-refractory. This paper aims to investigate and optimize the performance of the Trisep TS80 nanofiltration (NF) membrane for the removal of a mixture of two of the most detected PhACs in municipal wastewaters worldwide, sulfamethoxazole and diclofenac. Several NF tests were carried out to study the rejections of these contaminants both spiked in demineralized water, filtrated water taken from Mondego River and secondary effluent coming fro

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Zaharia, Carmen, Victor Amarandei, and Augustin Muresan. "Comparative Overview of Different Physical-Chemical Treatments Applied for Real Textile Effluents." Advanced Materials Research 1036 (October 2014): 58–64. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.58.

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The paper presents different physical-chemical treatment applications for textile effluents (i.e. one-single or mixed treatment stages as coagulation-flocculation, homogenous advanced oxidation with hydrogen peroxide as Fenton-like processes, sorption applied for different textile wastewaters followed by sedimentation and/or filtration). The efficiencies of textile wastewater treatments in terms of effluent quality, treatment degree, and optimal operating parameters (i.e. pH, concentration of chemical reagents and materials used, temperature, operating regime, and time) are discussed, together

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Meuler, S., S. Paris, and T. Hackner. "Membrane bio-reactors for decentralized wastewater treatment and reuse." Water Science and Technology 58, no. 2 (2008): 285–94. http://dx.doi.org/10.2166/wst.2008.356.

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Decentralized wastewater treatment is the key to sustainable water management because it facilitates effluent (and nutrient) reuse for irrigation or as service water in households. Membrane bioreactors (MBR) can produce effluents of bathing water quality. Septic tanks can be retrofitted to MBR units. Package MBR plants for wastewater or grey water treatment are also available. Systems for decentralized treatment and reuse of domestic wastewater or grey water are also feasible for hotels, condominiums and apartment or office complexes. This paper presents the effluent qualities of different dec

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Pandey, Bharat Chandra, and Sangita Gupta. "Review: Wastewater Treatment in Different Industries." International Journal for Research in Applied Science and Engineering Technology 10, no. 8 (2022): 563–68. http://dx.doi.org/10.22214/ijraset.2022.46245.

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Abstract: Wastewater treatment is a process used to remove contaminants from wastewater and convert it into an effluent that can be returned to the water cycle. Once returned to the water cycle, the effluent creates an acceptable impact on the environment or is reused for various purposes (called water reclamation). The treatment process takes place in a wastewater treatment plant. There are several kinds of wastewater which are treated at the appropriate type of wastewater treatment plant. For domestic wastewater (also called municipal wastewater or sewage), the treatment plant is called a se

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Schmidtlein, F., M. Lübken, I. Grote, H. Orth, and M. Wichern. "Photoreactivation and subsequent solar disinfection of Escherichia coli in UV-disinfected municipal wastewater under natural conditions." Water Science and Technology 71, no. 2 (2014): 220–26. http://dx.doi.org/10.2166/wst.2014.488.

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Photoreactivation of ultraviolet (UV)-disinfected wastewater of different qualities was experimentally assessed. Photoreactivation ability of secondary effluent and microstrained inflow was analyzed in different samples of 50 mL (Petri dish) and 7,000 mL volume to describe open channel effluent situations of wastewater treatment plants in a more realistic approach. The small sample of secondary effluent revealed a total log10 inactivation of 1.8 units and the small sample of microstrained inflow a total log10 inactivation of 3.2, with an applied UV-254 fluence of 84 and 253 J/m², respectively.

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Farounbi, Adebayo I., Paul K. Mensah, Emmanuel O. Olawode, and Nosiphiwe P. Ngqwala. "1H-NMR Determination of Organic Compounds in Municipal Wastewaters and the Receiving Surface Waters in Eastern Cape Province of South Africa." Molecules 25, no. 3 (2020): 713. http://dx.doi.org/10.3390/molecules25030713.

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Surface water is the recipient of pollutants from various sources, including improperly treated wastewater. Comprehensive knowledge of the composition of water is necessary to make it reusable in water-scarce environments. In this work, proton nuclear magnetic resonance (1H-NMR) was combined with multivariate analysis to study the metabolites in four rivers and four wastewater treatment plants releasing treated effluents into the rivers. 1H-NMR chemical shifts of the extracts in CDCl were acquired with Bruker 400. Chemical shifts of 1H-NMR in chlorinated alkanes, amino compounds and fluorinate

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Zhu, Lei, Song Liu, Xun Wang, and Hong Jiao Song. "Study on Pharmaceutical Wastewater by SBBR." Applied Mechanics and Materials 295-298 (February 2013): 1380–83. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1380.

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A pharmaceutical factory in Wuhan produces many pharmaceutical wastewaters every day. The wastewater raw water quality indexes are: the concentration of COD,BOD5, NH3-N,TP is 300,000mg/L, 200,000mg/L, 450mg/L,900 mg/L ; By the SBBR treatment, the effluent water quality indexes are:750mg/L,350mg/L,1.20mg/L,5mg/L,and the effluent water can accord with Wastewater quality standards for discharge to municipal sewers (CJ 343-2010) and be discharged after treatment in the sewage treatment plant by municipal sewers.

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Drogui, Patrick, Mélanie Asselin, Satinder K. Brar, Hamel Benmoussa, and Jean-François Blais. "Electrochemical removal of organics and oil from sawmill and ship effluentsA paper submitted to the Journal of Environmental Engineering and Science." Canadian Journal of Civil Engineering 36, no. 3 (2009): 529–39. http://dx.doi.org/10.1139/l09-003.

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The present study investigates the electrocoagulation treatment of two different wastewaters, namely sawmill wastewater and ship waste effluent, charged with organic matter. Monopolar electrode configuration was studied for both types of effluents at current intensity of 2.0 A for a total treatment time of 90 min. Soluble chemical oxygen demand (CODs) removal was very low (12.5% to 13.6%) for sawmill effluent in comparison to 74.7% to 75.4% obtained for ship effluents. Thus, ship effluent was further examined in details for its treatment efficacy in terms of electrode configuration and type, c

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Janex-Habibi, M. L., A. Huyard, M. Esperanza, and A. Bruchet. "Assessment of alkylphenols in wastewater treatment: do we comply with new directives?" Water Science and Technology 56, no. 12 (2007): 57–62. http://dx.doi.org/10.2166/wst.2007.815.

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The fate of various alkylphenolic compounds during wastewater treatment was studied at full scale in thirteen plants, selected in order to cover a wide range of treatment processes, sizes and countries. In-depth investigations consisted in the analysis of nonylphenols, short chained (n = 1, 2) but also long chained polyethoxylates in raw wastewaters, effluents, raw and treated sludges. The degradation of long chained polyethoxylates (APnEO) was shown, resulting in significant production of alkylphenols that concentrate in the sludges. Results show however that the pending Directive on spreadin

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