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Journal articles on the topic 'Chemical water treatment'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

N.N., Mamatkulov. "Chemical Treatment Of Water In Ammophos Production Plants." American Journal of Agriculture and Biomedical Engineering 03, no. 06 (2021): 1–5. http://dx.doi.org/10.37547/tajabe/volume03issue06-01.

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This paper presents purification methods for the analysis of effluents from an ammophos production plant. Chemical analysis of the waters shows that phosphorus slags and phosphogypsum contain harmful elements such as strontium, arsenic, cadmium, titanium and manganese. Theoretical work on the control of ammophos max wastewater. Wastewater was found to contain Ca, Mg, F, S, P, N2 and trace elements.

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2

Luukkonen, Tero, Emma Tuulia Tolonen, and Jaakko Rämö. "Chemical perspectives on water treatment." Lumat: International Journal of Math, Science and Technology Education 1, no. 1 (2013): 111–22. http://dx.doi.org/10.31129/lumat.v1i1.1127.

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This article was produced based on a workshop on Coagulation and flocculation in water treatment, held at National Days of Chemical Education 13 to 14 April 2012. The workshop dealt with the central unit operation of surface water treatment, coagulation/flocculation. There are interesting chemical phenomena related to coagulation and flocculation, and it is possible to demonstrate them with relatively simple equipment. Demonstration, suitable for classroom environment, is presented in the section discussing surface water treatment. Water treatment is for the most part based on chemical p

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3

Drozdz, Susan, Vincent F. Hock, David Hurt, and Stephen Maloney. "Green Chemical Treatments for Heating and Cooling Systems." Advanced Materials Research 38 (March 2008): 1–6. http://dx.doi.org/10.4028/www.scientific.net/amr.38.1.

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Scale, corrosion and the and biological growth in industrial water handling processes result in reduced water flow though pipes, reduced heat transfer, and pump failures. Preventative treatments for these problems are based upon chemical compounds that are most often toxic and environmentally persistent. Manufacturers continue to introduce new chemicals and treatment programs onto the market, and old products have been discontinued. Many manufacturers claim that the new chemical and treatments are more environmentally friendly and safer for the plant workers and the users. The U.S. Army Engine

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4

MANISH, KUMAR, and RAM SHRI. "CHEMICAL TREATMENT OF WATER and WASTEWATER TREATMENTS BY ALUM." i-manager’s Journal on Civil Engineering 6, no. 2 (2016): 36. http://dx.doi.org/10.26634/jce.6.2.5941.

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5

Xayitovna, Juraeva Oyisha, and Kamolova Shahnoza Meliboevna. "METHODS OF MECHANICAL, CHEMICAL AND BIOLOGICAL TREATMENT OF WASTEWATER IN INDUSTRIAL ECOLOGY." American Journal of Applied Science and Technology 03, no. 05 (2023): 70–72. http://dx.doi.org/10.37547/ajast/volume03issue05-13.

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cIt is important to provide the population with clean drinking water. Drinking water must meet the requirements of special state standards and is a constant focus of health care institutions. The state standard requires the organization of sanitary protection zones of water sources and main water intake facilities.

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Arefieva, Olga D., Nikolai P. Shapkin, Natalia V. Gruschakova, and Natalia A. Prokuda. "Mine water: chemical composition and treatment." Water Practice and Technology 11, no. 3 (2016): 540–46. http://dx.doi.org/10.2166/wpt.2016.060.

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Hydrochemical studies of mine water on abandoned Nagornaya mine showed that they are weakly alkaline with high color, permanganate demand (PD) and content of iron cations compared to Russian state legislation standards for natural water of a different type. Mine water are polluted with Na, Li, Cu, Ni and Sr cations, while gas chromatography identified some saturated hydrocarbons, mainly from С22Н46 to С32Н66. The study demonstrates a developed technology of local mine water treatment with a high color, PD and iron concentration. The scheme offered includes two basic stages: electrochemical oxi

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Hahn, H. H., E. Hoffmann, and H. Odegaard. "Chemical Water and Wastewater Treatment IX." Water Intelligence Online 6 (December 30, 2015): 9781780402079. http://dx.doi.org/10.2166/9781780402079.

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8

Hahn, H., E. Hoffman, and H. Odegaard. "Chemical Water and Wastewater Treatment VIII." Water Intelligence Online 4 (December 30, 2015): 9781780402840. http://dx.doi.org/10.2166/9781780402840.

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9

Reddy, Michael. "Chemical water treatment. Principles and practice." Journal of Hydrology 195, no. 1-4 (1997): 385–86. http://dx.doi.org/10.1016/s0022-1694(97)89474-7.

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10

Gyürék, Lyndon L., and Gordon R. Finch. "Modeling Water Treatment Chemical Disinfection Kinetics." Journal of Environmental Engineering 124, no. 9 (1998): 783–93. http://dx.doi.org/10.1061/(asce)0733-9372(1998)124:9(783).

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11

Zhao, Fu-Wang, Xing Li, and Nigel Graham. "The application of potassium manganate in water treatment." Water Supply 11, no. 5 (2011): 612–20. http://dx.doi.org/10.2166/ws.2011.023.

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This paper explores the feasibility of using potassium manganate (K2MnO4) in water treatment. Manganate (Mn(VI)), like ferrate (Fe(VI)), can act as both an oxidant and a coagulant/adsorbent arising from the formation of insoluble manganese dioxide (Mn(IV)) from the chemical reduction of MnO42−. In this paper the basic properties of K2MnO4 are described, including the standard electrode potential which exceeds several oxidizing agents commonly used as water treatment chemicals. The methods of preparing K2MnO4 are outlined, and the main reaction products, which are potassium permanganate (KMnO4)

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12

Morshed, Ali. "Chemical Treatment Shortcomings Associated with MIC Control." Materials Performance 62, no. 8 (2023): 36–38. https://doi.org/10.5006/mp2023_62_8-36.

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Microbiologically influenced corrosion (MIC) is a major integrity threat for water treatment systems as well as other utility water systems. Erroneous chemical treatments associated with the MIC control and mitigation process further exacerbate MIC issues within such systems. This article investigates such chemical treatment shortcomings and their main root cause(s).

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13

Bakkal, Mustafa, M. Safa Bodur, H. Ece Sonmez, and B. Can Ekim. "The effect of chemical treatment methods on the outdoor performance of waste textile fiber-reinforced polymer composites." Journal of Composite Materials 51, no. 14 (2016): 2009–21. http://dx.doi.org/10.1177/0021998316666335.

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In this study, weathering effect on untreated textile fiber-reinforced polymer composites and the effect of different chemical treatments for better interfacial adhesion on the outdoor performance were investigated. Degradation of physical, mechanical, and chemical properties of textile fiber-reinforced polymer composites was evaluated through common chemical treatments such as maleated coupling, alkaline treatment, silane treatment, and alkali–silane treatment. Untreated and chemically treated textile fiber-reinforced polymer composites were subjected to water uptake and UV exposure up to 100

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14

Mostafa, Sojoud H., Alnazier O. Hamza, and Mohamed O. Khider. "Chemical Analysis of Water Treatment in Sudan." Journal of Clinical Engineering 41, no. 4 (2016): 181–85. http://dx.doi.org/10.1097/jce.0000000000000179.

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15

Bruyako, Michail, and Larisa Grigoreva. "Mobile plants for plasma chemical water treatment." MATEC Web of Conferences 170 (2018): 04004. http://dx.doi.org/10.1051/matecconf/201817004004.

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Water is a valuable natural resource. It provides an exceptional role in metabolic processes, which are the basis of life. The negative factor of human activity is pollution of the environment, including water resources. Municipal sewage treatment is an urgent environmental problem. It exists both in Russia and abroad. Despite all the measures and methods used to treat wastewater, pollutants continue to flow into water bodies. The most dangerous pollutants are heavy metals, organic substances (proteins, fats, carbohydrates). To solve this problem, both traditional and modern methods are propos

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16

Santhanamarisamy, Sasikumar. "AN OVERVIEW OF STEAM BOILERS CHEMICAL TREATMENT STRATEGIES." International Journal of Engineering Applied Sciences and Technology 09, no. 11 (2025): 23–26. https://doi.org/10.33564/ijeast.2025.v09i11.003.

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The Feed water usage in Boiler has the limitation for Iron, Copper, Total hardness Silica and dissolved solids. The operation of the Boiler will be affected due to the presence of Calcium and Magnesium salts in the water. The presence of excess Oxygen and Carbon dioxide in Boiler feed water tend to make corrosion in the Boiler parts. The use of chemicals in treating Boiler water tend to improve the Boiler efficiency, reduced maintenance cost, increased Equipment life, reduce the Fuel cost and minimize the water usage. When the Boiler water becomes steam which leaves the impurities like salts o

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17

Subala, Dr A. Sandy, Dr K. V. Anand, and Mr S. Antony Sibi. "Quantum Dots in Waste Water Treatment- Review Article." Volume 5 - 2020, Issue 8 - August 5, no. 8 (2020): 1449–55. http://dx.doi.org/10.38124/ijisrt20aug591.

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The effluents present in the water resources leads unqualified for various domestic and irrigation purposes. The waste water treatment purely depends upon the volume of contaminants. The objective of the study was to gives a detailed discussion about the chemical methods and different types of QDs involved, examining their effluents removing efficiency, the selectivity and sensitive detection of various chemicals present in the contaminated water bodies.

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18

Wang, Chun Xia, Quan Jiu Wang, and Zhuang Liang. "Field Experimental Study on Saline and Alkaline Soil Amelioration through Combining Chemical Method and Under-Mulch Drip Irrigation." Advanced Materials Research 599 (November 2012): 832–37. http://dx.doi.org/10.4028/www.scientific.net/amr.599.832.

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Chemistry amelioration measure is a means of regulating soil water and salt movement, the paper introduced the method of combined the under-mulch drip irrigation with applying of chemicals, such as PAM, Handilong and Gypsum. The Field experimental results indicate that the surface soil bulk density reduced degree for applying chemistry matters is higher than without applying chemical farmland (as comparison treatment), the reduced rate shows to reduce one after the other increase with applying increasing. The holding water capacity for applying chemicals is higher than comparison treatment exc

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19

Oliveira Costa, Danniely, Hudson Salatiel Marques Vale, Rafael Oliveira Batista, Kaline Dantas Travassos, and Jeane Cruz Portela. "Chemical characteristics of soil irrigated with produced water treatment and underground water." DYNA 86, no. 210 (2019): 143–49. http://dx.doi.org/10.15446/dyna.v86n210.79115.

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Irrigation effects of produced water treatment, diluted in underground water, were analyzed through the chemical characteristics of argisol with foraging palm. Assay was performed in a randomized block design (RBD), with five replications, in a subdivided split plot scheme. Splits comprised treatments T1 (100% underground water - UW, control), T2 (75% UW and 25% produced water treatment - PW), T3 (50% UW and 50% PW), T4 (25% UW and 75% PW) and T5 (100% PW), whilst sub splits comprised soil depths (0 - 0.10 m and 0.10 - 0.20 m). The results showed that irrigation with diluted treated water prod

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20

Drewes, J. E., J. A. McDonald, T. Trinh, M. V. Storey, and S. J. Khan. "Chemical monitoring strategy for the assessment of advanced water treatment plant performance." Water Science and Technology 63, no. 3 (2011): 573–79. http://dx.doi.org/10.2166/wst.2011.260.

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A pilot-scale plant was employed to validate the performance of a proposed full-scale advanced water treatment plant (AWTP) in Sydney, Australia. The primary aim of this study was to develop a chemical monitoring program that can demonstrate proper plant operation resulting in the removal of priority chemical constituents in the product water. The feed water quality to the pilot plant was tertiary-treated effluent from a wastewater treatment plant. The unit processes of the AWTP were comprised of an integrated membrane system (ultrafiltration, reverse osmosis) followed by final chlorination ge

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21

Drewes, J. E., J. A. McDonald, T. Trinh, M. V. Storey, and S. J. Khan. "Chemical monitoring strategy for the assessment of advanced water treatment plant performance." Water Supply 10, no. 6 (2010): 961–68. http://dx.doi.org/10.2166/ws.2010.635.

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A pilot-scale plant was employed to validate the performance of a proposed full-scale advanced water treatment plant (AWTP) in Sydney, Australia. The primary aim of this study was to develop a chemical monitoring program that can demonstrate proper plant operation resulting in the removal of priority chemical constituents in the product water. The feed water quality to the pilot plant was tertiary-treated effluent from a wastewater treatment plant. The unit processes of the AWTP were comprised of an integrated membrane system (ultrafiltration, reverse osmosis) followed by final chlorination ge

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22

Yoshida, Yukifumi, Hiroaki Takahashi, Masanobu Sato, Jim Snow, Farid Sebaai, and Frank Holsteyns. "The Effect of Rinsing a Germanium Surface after Wet Chemical Treatment." Solid State Phenomena 255 (September 2016): 22–26. http://dx.doi.org/10.4028/www.scientific.net/ssp.255.22.

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The impact of rinsing liquid for Germanium surface after wet chemical treatment is described. The different Ge loss after processing with different rinse (UPW and CO2 water) were determined and the different surface morphologies on the Ge surface after processing with different chemicals (AOM, HF and HCl) were determined by XPS. It was found that the investigation of surface morphology after chemical treatment is necessary to understand the rinse effect and the results showed the CO2 water rinse can decrease and suppress Ge loss at chemical treatment

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23

Levine, Audrey D., Y. Jeffrey Yang, and James A. Goodrich. "Enhancing climate adaptation capacity for drinking water treatment facilities." Journal of Water and Climate Change 7, no. 3 (2016): 485–97. http://dx.doi.org/10.2166/wcc.2016.011.

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Conventional water treatment processes (e.g., coagulation, flocculation, sedimentation, and filtration) are widely used for producing drinking water from surface water sources. Transient, gradual, or abrupt changes in source water quality that could compromise treatment effectiveness can be triggered by climate and related meteorological events, accidental or intentional contamination, security breaches, or other disruptions. However, the design principles that underpin the majority of existing conventional treatment systems predate climate adaptation considerations. This paper considers the a

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24

Lam, C. F., C. W. Kan, S. P. Ng, and C. K. Chan. "Effect of Plasma Treatment on Cotton Desizing." Research Journal of Textile and Apparel 19, no. 1 (2015): 46–58. http://dx.doi.org/10.1108/rjta-19-01-2015-b005.

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As a significant amount of water, chemicals and energy are incurred in the preparation process of cotton materials, the handling of waste water and the associated chemical disposal is costly and the side effects that are resultant of the wastes affect the environment. Cost efficiency and environment protection are emphasized in this generation, and as a result, the textile industry is seeking for more cost saving and environmentally friendly cotton preparation processes as an alternative to conventional wet chemical processing. Moreover, the combination of both physical and chemical treatments

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25

AL-Hashimi, Kawakib Jaber, and Aid Khalaf Thamer. "Effeciency of the Designe of waste water treatment unit of Babil Batteries factory in Baghdad (state Battery manufacturing company)." Al Mustansiriyah Journal of Pharmaceutical Sciences 9, no. 1 (2011): 132–39. http://dx.doi.org/10.32947/ajps.v9i1.279.

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Industrial waste water is discharged from various processes in factories using water. Further, the contaminants and Pollutants separated from the water,must be treated and disposed of so that they cannot cause environmental pollution of other obstructions.The flow diagram of waste water treatment of babil Battries factory is shown. This was the most suitable treatment methods involving equipments and chemicals. Physical and chemical. Treatment (included PH adjustment) were the methods used, to remove the Pollutants present in the waste water of Bettriesfactory in Baghdad Determination of chemi

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26

Huber, Patrick, and Bruno Carré. "DecolorizatioDecolorization of process waters in deinking mills and similar applications: A reviewn of process waters in deinking mills and similar applications: A review." BioResources 7, no. 1 (2012): 1366–82. http://dx.doi.org/10.15376/biores.7.1.1366-1382.

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Process waters in deinking mills often feature a strong coloration, due to dyes and pigments released from the recovered paper. This can usually be remediated by pulp bleaching treatment with appropriate chemicals. However, the red shade (from rhodamine dye) is resistant to conventional bleaching treatments. This largely limits the use of deinked pulp in white paper grades. In this review, the available technologies for process water decolorization are discussed (chemical methods, physico-chemical methods and biological treatments). Ozonation of the process water appears to be the most promisi

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27

Ovchinnikov, A. S., M. A. Denisova, V. S. Bocharnikov, et al. "Water treatment of surface water using a ferrite reagent." IOP Conference Series: Earth and Environmental Science 996, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1755-1315/996/1/012002.

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Abstract The article presents the research results for a water treatment technology that removes chemical impurities with a ferrite reagent. The process scheme is a hydrocyclone filter for preliminary water purification from large suspensions, a vertical settler, a chamber for mixing the components of the reagent and a centrifuge for sludge dewatering, which can be used as a magnet. In the course of the experiments, the required cooling time intervals were established and the absorption effect of the ferrite reagent with respect to chemical impurities was determined. The settling was carried o

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28

S, Cheshmekhezr. "New Approaches in Drinking Water and Wastewater Treatment Coagulation System: A Mini - Review." Open Access Journal of Waste Management & Xenobiotics 2, no. 3 (2019): 1–5. http://dx.doi.org/10.23880/oajwx-16000128.

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Turbidity and natural organic matters (NOMs) cause change in odor, color, and taste of drinking water as well as increasing the concern of bacterial growth in water and wastewater. This article aims to review the coagulation process and to introduce the po tential approaches that can help the water and wastewater authorities to come up with the best coagulant selection. The coagulation is a physicochemical process that is used in the conventional treatment process to reduce turbidity, suspended particles, an d NOMs. Aluminum sulfate (alum) and ferric chloride are the most common coagulants tha

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29

Eugenia, P. Ramirez. "AUTOMATED ELECTROCOAGULATION SYSTEM FOR WASTEWATER TREATMENT." Electrical & Computer Engineering: An International Journal (ECIJ) 2, no. 4 (2013): 01–12. https://doi.org/10.5281/zenodo.3356740.

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There are two major ways to treat wastewater; it is either through chemical or non-chemical treatment. Both improve water quality, but do not make water safe for domestic use. Most firms or companies use coagulation treatment or chemical treatment. But the problem for this treatment is the selection of the best chemical to be used; it is expensive and frequent dosage adjustments are required to ensure good water treatment results. All coagulation chemical add specific elements to the water, improper doses and application generally pose problems (health risks). Hence, it requires extra preventi

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30

Trindade, Maria Santana de Araújo, Adalberto Hipólito de Sousa, Patrício Borges Maracajá, Rui Sales Júnior, and Wilson Galdino de Andrade. "Aqueous extracts and oil of neem combined with neonicotinoid insecticides against Bemisia tabaci biotype B in melon." Ciência Rural 37, no. 6 (2007): 1798–800. http://dx.doi.org/10.1590/s0103-84782007000600046.

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This research was aimed at evaluating nymph population density of whitefly (Bemisia tabaci biotype B) in melon plants after treatment with neem-dry-leaf aqueous extracts and neem-oil ( A. Juss.) applied alternately with neonicotinoid insecticides under field conditions. The experimental design was a randomized block, with 6 treatments and 4 replications. The treatments were control (only water); neem-dry-leaf extract at 5% (neem-dry-leaf powder 50g L-1 of water); neem oil (5.0mL L-1 water); chemicals insecticides imidacloprid (30g 25L-1 of water) and acetamiprid (5g 20L-1 of water); neem-dry-l

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31

Akinbomi, J. G., O. I. Soetan, D. N. Olufade, et al. "Efficacy of Plant Product Extracts for Potable Water Production from Contaminated Water." LASU Postgraduate School Journal (LPSJ) 1, no. 2 (2025): 234–45. https://doi.org/10.5281/zenodo.14776972.

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Conventional water treatment processes for potable water production in most developing countries are often challenging because of the cost of imported chemicals required for the water treatment coupled with the inherent toxicity associated with chemical disinfection of contaminated water. Hence, the necessity of finding alternative water disinfection technique cannot be understated. This study investigated the potential of using locally sourced plant products, including ginger, garlic, orange, turmeric, aloe vera and red onion; for the treatment of Epe river water and cashew industrial effluen

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32

Kuskarbekova, S. I., A. N. Shishkov, D. V. Bekhterev, A. A. Ershov, and D. U. Zulkarnaev. "Operational improvement of coil type direct-flow steam generator by using chemical water treatment system." IOP Conference Series: Earth and Environmental Science 1154, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1755-1315/1154/1/012005.

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Abstract Strict requirements to the feed water for the coil type direct-flow steam generator imply a good quality of preparation, which is difficult to achieve with the usual filters. Deposit formation on the coil surface makes wonder about choosing the best method of chemical water treatment for a steam generator of this type. This article presents the results of calculations of filters of various types for water purification, which are designed for providing standard chemical measures of heat carrier. The results of modeling the coil during the movement of chemically purified and source wate

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33

Amineva, E. S., and E. R. Bashirova. "IMPROVEMENT OF PRODUCED WATER QUALITY TREATMENT BY CHEMICAL METHOD." Problems of Gathering Treatment and Transportation of Oil and Oil Products, no. 3 (June 20, 2025): 45–56. https://doi.org/10.17122/ntj-oil-2025-3-45-56.

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The final period of oil field development is characterized by a gradual reduction in oil production and intensive growth of the produced water volume, with the water cut of the well products reaching 95 % and more. This is due to the fact that waterflooding is a common enhanced oil recovery method. Yet, serious requirements are imposed on the injected water quality. Significant content of residual oil and mechanical impurities in water causes deterioration of injection efficiency, production losses, extra costs for bottom-hole zone maintenance and costs for maintenance of main process equipmen

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34

El-Gohary, F. A., S. I. Abo-Elela, S. A. Shehata, and H. M. El-Kamah. "Physico-Chemical-Biological Treatment of Municipal Wastewater." Water Science and Technology 24, no. 7 (1991): 285–92. http://dx.doi.org/10.2166/wst.1991.0212.

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Physico-chemical sewage treatment via coagulation-sedimentation is put in action for suspended solids removal. The effectiveness of this technology concerning the soluble organic content is extremely low. In direct comparison, the use of a biological sand-bed and a high-rate oxidation pond as a tertiary treatment for the chemically treated effluent brought about a substantial increase in efficiency. Experimental investigations performed led to the conclusions that, for the reuse of wastewater for irrigation, chemical treatment is appropriate. For discharge of treated effluents into surface wat

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35

R, Spoorthy. "Recent Advancements in Water Waste Water Treatment Technologies." International Journal for Research in Applied Science and Engineering Technology 12, no. 8 (2024): 581–90. http://dx.doi.org/10.22214/ijraset.2024.63963.

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Abstract: Water is undoubtedly the most important and invaluable natural resource that humans utilize. The main source of water for human consumption and various industrial uses on a global scale is groundwater. Different types of organic and inorganic contaminants from natural and, more often, anthropogenic sources, leach into all water systems, especially groundwater. A lack of water for human consumption is also a result of inadequate wastewater treatment, rising freshwater usage, and climate change. Therefore, it is necessary to adequately and conscientiously manage wastewater to ensure sa

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36

Hussain, Teba S., and Alaa H. Al-Fatlawi. "Remove Chemical Contaminants from Potable Water by Household Water Treatment System." Civil Engineering Journal 6, no. 8 (2020): 1534–46. http://dx.doi.org/10.28991/cej-2020-03091565.

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The Main aim of the present study is to manufacture "Low- Cost Water Filter" for purification water and are designed for small water capacity, using readily available material and environmentally friendly such as kaolin clay, and jute fibers. A number of household treatment systems are readily available in the market. They are differing mainly in make and water purification mechanisms utilized. Most of the available household treatment devices are costly and hence there is a need to come up with cheap or affordable treatment technologies. This research was carried out to determine the efficien

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37

Wasserman, Julio Cesar, Viviane Maia Damaceno, Gilson Brito Alves Lima, and Maria Angélica Wasserman. "Spatial distribution of water quality in the Amazonian region: implications for drinking water treatment procedures." Journal of Water and Health 17, no. 5 (2019): 749–61. http://dx.doi.org/10.2166/wh.2019.005.

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Abstract Riparian communities in the Amazon suffer from water-borne diseases due to the lack of adequate water treatment capabilities. Therefore, small local water treatment plants are necessary, but the selection of treatment procedures depends largely on the physico-chemical characteristics of the water. The aim of the present research was to evaluate the physico-chemical characteristics of the water in the Amazon River and its tributaries, in order to determine customized processes for water treatment. Data from 54 fluviometric monitoring stations were organized and used to construct distri

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38

Naumova, Olga Valerievna, Elena Vladimirovna Spiridonova, and Danila Sergeevich Katkov. "Device for water treatment and water purification." Agrarian Scientific Journal, no. 4 (April 20, 2022): 89–91. http://dx.doi.org/10.28983/asj.y2022i4pp89-91.

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The article is devoted to the problems of water purification and organization of water treatment for engineering systems. Well-known methods of water treatment, such as mechanical, electrophysical, chemical, are not always able to ensure the quality of water in heat supply systems. Modern trends in the development of industry are aimed at the modernization of technological equipment in terms of the implementation of new progressive technologies. For the efficient operation of water heaters and to reduce heat losses in the heating and water supply system of the building, it is necessary to mini

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Naumova, Olga Valerievna, Elena Vladimirovna Spiridonova, and Danila Sergeevich Katkov. "Device for water treatment and water purification." Agrarian Scientific Journal, no. 4 (April 20, 2022): 89–91. http://dx.doi.org/10.28983/asj.y2022i4pp89-91.

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The article is devoted to the problems of water purification and organization of water treatment for engineering systems. Well-known methods of water treatment, such as mechanical, electrophysical, chemical, are not always able to ensure the quality of water in heat supply systems. Modern trends in the development of industry are aimed at the modernization of technological equipment in terms of the implementation of new progressive technologies. For the efficient operation of water heaters and to reduce heat losses in the heating and water supply system of the building, it is necessary to mini

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40

Liu, Qilin. "New Water Treatment Chemical PFZSS Preparation and Application." Open Chemical Engineering Journal 9, no. 1 (2015): 121–24. http://dx.doi.org/10.2174/1874123101509010121.

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Nowadays global water quality pollution has become extremely serious, and solving water pollution has been extremely urgent, so researches on water pollution solutions have become even urgent. And flocculating method is the most traditional water purification method, research and create new high performance flocculating agent is one of flocculating method inherent problems. The paper mainly describes adding iron, zinc two kinds of metal captions together in polysyllabic acid, well controlling all aspects requirements in technology, researching and creating new water purification substance—poly

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Krasinikova, Natalya, Sergei Stepanov, and Dmitry Makarov. "Cement stone, modified by chemical water treatment sludge." IOP Conference Series: Materials Science and Engineering 890 (August 13, 2020): 012099. http://dx.doi.org/10.1088/1757-899x/890/1/012099.

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Gümüş, Nazım, Ahmet Erkılıç, and Harun Analay. "Water jet for early treatment of chemical burn." Burns 36, no. 3 (2010): e36-e37. http://dx.doi.org/10.1016/j.burns.2008.08.018.

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Jeje, J. O. "Study of Water Filtration Without Chemical Pre-Treatment." International Journal of Mechanical and Civil Engineering 6, no. 1 (2023): 1–9. http://dx.doi.org/10.52589/ijmce-sovvyjni.

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This research work focused on studying water purification without chemical pre-treatment. In the studies, alternative approaches were carried out to develop a filter bed suitable for filtering water without the use of chemical treatments that is also cost effective. Polyvinyl Chloride (PVC) pipes (100 × 1700) mm were used as filter boxes. The experiment carried out during the study was divided into two major parts; that is slow sand and rapid sand filter parameters. The slow sand filter consisted of two filter pipes, one consisting of a stratified layer of sand of size range of 0.20 – 0.60 mm

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Guomin, Cao, Yang Guoping, Sheng Mei, and Wang Yongjian. "Chemical industrial wastewater treated by combined biological and chemical oxidation process." Water Science and Technology 59, no. 5 (2009): 1019–24. http://dx.doi.org/10.2166/wst.2009.051.

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Wastewaters from phenol and rubber synthesis were treated by the activated sludge process in a large-scale chemical factory in Shanghai, but the final effluent quality cannot conform with the local discharge limit without using river water for dilution. Therefore, this chemical factory had to upgrade its wastewater treatment plant. To fully use the present buildings and equipment during upgrading of the chemical factory's wastewater treatment plant and to save operation costs, a sequential biological pre-treatement, chemical oxidation, and biological post-treatment (or BCB for short) process h

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Blum, D. J. W., and R. E. Speece. "The Toxicity of Organic Chemicals to Treatment Processes." Water Science and Technology 25, no. 3 (1992): 23–31. http://dx.doi.org/10.2166/wst.1992.0073.

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The IC50 concentration was determined for a common set of narcotic chemicals to three classes of environmental organisms - aerobic heterotrophs, methanogens and Nitrosomonas as well as to MicrotoxR. The toxicity was well modeled using the linear solvation energy relationship which incorporates molecular volume, polarity/polarizability, hydrogen bond donor acidity and hydrogen bond donor basicity. Chemical characteristics which contribute to a chemical's toxicity are discussed. The relative toxicity to these different classes of environmental microorganisms is discussed and the implications to

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Liao, Ren Kuan, Pei Ling Yang, Shu Mei Ren, Hang Yi, Long Wang, and Fang Ze Shang. "Effects of Typical Chemical Agents on Preventing Pollution and Controlling Drought in a Cherry Orchard." Advanced Materials Research 550-553 (July 2012): 1340–44. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.1340.

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In the North China plain, serious Non-point-source (NPS) pollution and drought are two great concerns in agricultural production. In our studies, two typical chemical agents ( SAP and FA ) were selected to control drought and pollution in a cheery orchard. Soil water content, nutrient transport in soil profile have been researched. The results showed that the soil water content of treatments with chemical agents increased maximally by 19.4% relative to treatment without chemical agents, and increased by 35.2% for Ammonium-N in 20-60 cm soil layer ( main root zone ). However, in 60-120 cm deepe

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Elsheikh, Mahmoud Abdel-Shafy. "Tannery wastewater pre-treatment." Water Science and Technology 60, no. 2 (2009): 433–40. http://dx.doi.org/10.2166/wst.2009.351.

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Tannery wastewater is one of the most pollution sources. It can cause environmental problems related to its high organic matter, suspended solids and chromium. Chromium (III) salts are the most widely used chemicals for tanning processes, causing the tannery wastewater to be highly pollutant with chromium. The main objective of this study is to investigate the pre-treatment of an actual Egyptian tannery wastewater using two systems; the first electrolytic system and the second physico-chemical system. The performances of electrolytic system at current of 10, 20, 30 and 40 A were discussed. Poo

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Mohanty, Manoranjan, and Ashwini Sharma. "Studies on chemical modification of some hardwoods." Indian Journal of Forestry 26, no. 2 (2003): 107–15. http://dx.doi.org/10.54207/bsmps1000-2003-5583p3.

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Mainly two chemicals, viz., sodium periodate and chromium (VI) trioxide have been used for chemical modification of hardwoods. Aqueous solution of NalO4 at lower concentrations decreased the dimensional stability (6.97%, 8.37% and 8.93% change in tangential direction for 0.1% concentration and 136 hours water soaking in Bombax ceiba/Red silk cotton tree, Celtis australis/Nettle-tree and Populus deltoides/Eastern poplar, respectively). Aqueous solution of Cr+6O3 (Chromic acid, 5% for 5 minutes) gave maximum dimensional stability (2.78%, 3.56% and 5.46% change in tangential direction after 136 h

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Moreno, C. F. "INFLUENCE OF SODIUM HYPOCHLORITE ON THE ANAEROBIC TREATMENT OF BROWN WATER." Revista Mexicana de Ingeniería Química 17, no. 3 (2018): 999–1009. http://dx.doi.org/10.24275/uam/izt/dcbi/revmexingquim/2018v17n3/moreno.

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Kumar, Avneesh, and Dong Wook Chang. "Optimized Polymeric Membranes for Water Treatment: Fabrication, Morphology, and Performance." Polymers 16, no. 2 (2024): 271. http://dx.doi.org/10.3390/polym16020271.

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Conventional polymers, endowed with specific functionalities, are extensively utilized for filtering and extracting a diverse set of chemicals, notably metals, from solutions. The main structure of a polymer is an integral part for designing an efficient separating system. However, its chemical functionality further contributes to the selectivity, fabrication process, and resulting product morphology. One example would be a membrane that can be employed to selectively remove a targeted metal ion or chemical from a solution, leaving behind the useful components of the solution. Such membranes o

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