To see the other types of publications on this topic, follow the link: Health aspects of Artificial groundwater recharge.
Journal articles on the topic 'Health aspects of Artificial groundwater recharge'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 21 journal articles for your research on the topic 'Health aspects of Artificial groundwater recharge.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Masciopinto, C., V. Palmisano, F. Tangorra, and M. Vurro. "A Decision Support System for Artificial Recharge Plant." Water Science and Technology 24, no. 9 (November 1, 1991): 331–42. http://dx.doi.org/10.2166/wst.1991.0262.
Full textAbstract:
The need for artificial recharge plants is the result of the qualitative and quantitative worsening of groundwater resources due to increased pumping and wastewater discharge. This paper described a system that uses artificial intelligence techniques for designing an artificial recharge plant. The system can be used as a training tool for new engineers, as well as an aid in the choices for expert engineers. The system is an application of an expert system shell running on a common p.c. machine. The model is made up of two knowledge bases, respectively denoted as Quantity artificial recharge and Quality artificial recharge. The former is related to the quantitative aspects, such as geology, climate and land availability, the latter to qualitative aspects, such as water use and treatment plant. Two case studies have been implemented in order to confirm the validity of this kind of systemic approach.
2
Asano, T. "Artificial Recharge of Groundwater with Reclaimed Municipal Wastewater: Current Status and Proposed Criteria." Water Science and Technology 25, no. 12 (June 1, 1992): 87–92. http://dx.doi.org/10.2166/wst.1992.0340.
Full textAbstract:
Current status and the proposed criteria for artificial recharge of groundwater with reclaimed municipal wastewater are discussed with special reference to controlling microbial pathogens and trace organic contaminants. The draft criteria have been developed by the State of California Interagency Water Reclamation Coordinating Committee, followed by the Groundwater Recharge Committee of the Department of Health Services (DHS). The proposed criteria are in the final review process and are expected to be adopted in late 1992 by the DHS as a part of the revised, state-wide Wastewater Reclamation Criteria. The discussions and the draft criteria presented in this paper facilitate the approval of groundwater recharge projects by identifying the nature and characteristics of groundwater recharge projects that do not jeopardize the public water supply systems including use of groundwater for potable water supply. These criteria are intended to provide uniform state-wide application of regulations on which to regulate and design groundwater recharge projects using reclaimed municipal wastewater as a source of recharge water.
3
Heberer, Thomas, and Marc Adam. "Transport and Attenuation of Pharmaceutical Residues During Artificial Groundwater Replenishment." Environmental Chemistry 1, no. 1 (2004): 22. http://dx.doi.org/10.1071/en04008.
Full textAbstract:
Environmental Context.The contamination of public water supplies by drug residues is an issue of importance for public health. While soil may act as a natural filter to remove some contaminants from groundwater, there is a lack of information on the fate and transport of pharmaceutical residues during groundwater recharge. In this study, the fate and the transport of eight drug residues during groundwater recharge of contaminated surface water which was investigated at an artificial groundwater replenishment plant in Berlin, Germany, as part of the international collaboration NASRI (Natural and Artificial Systems for Recharge and Infiltration). The study shows that some of the contaminants would indeed end up in the water supply if the water only underwent normal groundwater recharge. Abstract.Recently, several new types of organic contaminants such as pharmaceuticals and their metabolites have been found in sewage or surface waters. Some of the polar pharmaceuticals have also been detected in samples of ground and drinking water, especially when water from induced recharge is used for drinking water production. The fate and the transport of eight drug residues during groundwater recharge (GWR) of contaminated surface water was investigated at an artificial groundwater replenishment plant in Berlin, Germany. After a recharge distance of only a few meters, bezafibrate, a blood lipid regulator, and indomethacin, an analgesic, were removed below their detection limits. Clofibric acid, a metabolite of blood lipid lowering agents, and the analgesic drugs diclofenac and propyphenazone were also attenuated during GWR. However, they were still detectable in the receiving water supply wells at low concentration levels (≤ 40 ng L–1). The anti-epileptic drugs carbamazepine and primidone and the drug metabolite AMDOPH (1-acetyl-1-methyl-2-dimethyl-oxamoyl-2-phenylhydrazide) were not significantly affected by GWR occurring in the water supply wells at mean individual concentrations between 100 and 1570 ng L–1.
4
Yoon, Yoon Yeol, Yong Cheol Kim, and Kil Yong Lee. "Study for artificial recharge process of groundwater using natural isotope tracers." Journal of Radioanalytical and Nuclear Chemistry 318, no. 3 (October 4, 2018): 2213–18. http://dx.doi.org/10.1007/s10967-018-6230-5.
Full text
5
Stefan, C., T. Fröhlich, L. Fuchs, R. Junghanns, H. M. Phan, V. N. Tran, and P. Werner. "Sustainable water resources management in the Long Bien district of Hanoi, Vietnam." Water Supply 12, no. 6 (October 1, 2012): 737–46. http://dx.doi.org/10.2166/ws.2012.049.
Full textAbstract:
The accelerated industrialization of Hanoi, Vietnam, coupled with a high population growth rate and changing climatic conditions create increasing pressure on the local water balance. Despite abundant precipitations, overexploitation endangers the groundwater resources, which are not able to sustain an adequate water supply. The present paper presents a sustainable approach for balancing the lowering of groundwater levels by increasing the rainwater percolation rates through enhanced infiltration. The efficiency of the method was assessed by a scenario analysis based on hydrological and hydrogeological models. Multi-criteria simulations revealed the optimum infiltration sites by considering technical and site-specific aspects and the positive impact of artificial recharge on seasonal groundwater budget.
6
Frommen, Theresa, Maike Groeschke, Maximilian Nölscher, Paul Koeniger, and Michael Schneider. "Anthropogenic and geogenic influences on peri-urban aquifers in semi-arid regions: insights from a case study in northeast Jaipur, Rajasthan, India." Hydrogeology Journal 29, no. 3 (February 2, 2021): 1261–78. http://dx.doi.org/10.1007/s10040-021-02301-7.
Full textAbstract:
AbstractRapid urbanization has exerted considerable pressure on groundwater resources in Jaipur, India. Peri-urban areas are particularly affected as the public supply infrastructure often does not reach this fast-growing fringe, which often lacks a planning strategy, leading to an informal water supply based on groundwater. At the same time, the hills and historic reservoirs located in these areas are important for groundwater recharge and, therefore, critical for sustainable groundwater-resource management. To understand the local hydrogeology and the role of anthropogenic influences, a 2-year field study was carried out in northeastern Jaipur. The aim was to develop a conceptual model on which a management concept can be built. The study comprised hydrochemical and stable isotope analyses of water samples, depth-to-water measurements, a leveling survey and geophysical investigations. The study revealed that the groundwater from both the Proterozoic hard rock and the overlying Quaternary alluvial aquifer generally does not meet the Indian drinking water thresholds for nitrate concentration and/or total dissolved solids (TDS). While anthropogenic activities are the main source of quantity problems (declining groundwater levels through overabstraction), the biggest quality problems (nitrate up to 550 mg/L and TDS >500 mg/L) are most likely of geogenic origin and only enhanced by anthropogenic impacts. Quantity and quality aspects improve significantly in areas influenced by recharge from the historic reservoirs, leading to the conclusion that artificial recharge structures may be the way forward to improving community water supply and that groundwater protection should be given priority in these areas.
7
Lin Lin, Wu, Zhao Xuan, Zhang Meng, and Cheng Xu Zhou. "Desalination of reclaimed water by nanofiltration in an artificial groundwater recharge system." Journal of Water Supply: Research and Technology-Aqua 58, no. 7 (November 2009): 463–69. http://dx.doi.org/10.2166/aqua.2009.016.
Full text
8
Xuan, Zhao, Cheng Xuzhou, and Zhang Meng. "A case study: bulk organic matters and nitrogen removal from reclaimed water by enhanced direct injection-well groundwater recharge system." Water Science and Technology 60, no. 3 (July 1, 2009): 745–49. http://dx.doi.org/10.2166/wst.2009.438.
Full textAbstract:
A new kind of artificial groundwater recharge approach named enhanced direct injection-well recharge (EnDir), consisting of short-term artifical vadose treatment and long-term aquifer treatment, is put forward and demonstrated in Beijing. The results reveal that granular activated carbon (GAC) could remove bulk organic matters with the DOC value decrease from 6.0 mg/L to 4.6 mg/L. The short-term vadose treatment of EnDir exhibited additional organic carbon removal and effective nitrification. DOC and AOX values were reduced to 4.1 mg/L and 56.8μg/L respectively. Ammonia-N of 3.81 mg/L was converted into equivalent nitrate-N. The long-term aquifer treatment offers favorable denitrification and lower nitrate-N content in the aquifer. The bulk parameters of DOC, SUVA, AOX and ammonia-N detected in the monitoring wells are as the same level as that of local groundwater. Brief financial analysis demonstrated the promising economic aspects of EnDir system in Beijing.
9
B�ckelmann, Uta, Hans-Henno D�rries, M. Neus Ayuso-Gabella, Miquel Salgot de Mar�ay, Valter Tandoi, Caterina Levantesi, Costantino Masciopinto, et al. "Quantitative PCR Monitoring of Antibiotic Resistance Genes and Bacterial Pathogens in Three European Artificial Groundwater Recharge Systems." Applied and Environmental Microbiology 75, no. 1 (November 14, 2008): 154–63. http://dx.doi.org/10.1128/aem.01649-08.
Full textAbstract:
ABSTRACT Aquifer recharge presents advantages for integrated water management in the anthropic cycle, namely, advanced treatment of reclaimed water and additional dilution of pollutants due to mixing with natural groundwater. Nevertheless, this practice represents a health and environmental hazard because of the presence of pathogenic microorganisms and chemical contaminants. To assess the quality of water extracted from recharged aquifers, the groundwater recharge systems in Torreele, Belgium, Sabadell, Spain, and Nard�, Italy, were investigated for fecal-contamination indicators, bacterial pathogens, and antibiotic resistance genes over the period of 1 year. Real-time quantitative PCR assays for Helicobacter pylori, Yersinia enterocolitica, and Mycobacterium avium subsp. paratuberculosis, human pathogens with long-time survival capacity in water, and for the resistance genes ermB, mecA, blaSHV-5, ampC, tetO, and vanA were adapted or developed for water samples differing in pollutant content. The resistance genes and pathogen concentrations were determined at five or six sampling points for each recharge system. In drinking and irrigation water, none of the pathogens were detected. tetO and ermB were found frequently in reclaimed water from Sabadell and Nard�. mecA was detected only once in reclaimed water from Sabadell. The three aquifer recharge systems demonstrated different capacities for removal of fecal contaminators and antibiotic resistance genes. Ultrafiltration and reverse osmosis in the Torreele plant proved to be very efficient barriers for the elimination of both contaminant types, whereas aquifer passage followed by UV treatment and chlorination at Sabadell and the fractured and permeable aquifer at Nard� posed only partial barriers for bacterial contaminants.
10
Su, Xiaosi, Wei Xu, and Shanghai Du. "Responses of groundwater vulnerability to artificial recharge under extreme weather conditions in Shijiazhuang City, China." Journal of Water Supply: Research and Technology-Aqua 63, no. 3 (November 26, 2013): 224–38. http://dx.doi.org/10.2166/aqua.2013.132.
Full text
11
Custodio, Emilio, Vicki Kretsinger, and M. Ramón Llamas. "Intensive development of groundwater: concept, facts and suggestions." Water Policy 7, no. 2 (April 1, 2005): 151–62. http://dx.doi.org/10.2166/wp.2005.0010.
Full textAbstract:
Groundwater is increasingly used for water supply and irrigation. For several decades, aquifers have been intensively developed and notable changes have occurred to recharge, groundwater flow, discharge and water quality conditions. These changes have inevitably accompanied technological developments that have allowed individuals, small groups and whole communities to solve their water problems affordably and, in impoverished areas, to diminish poverty and improve health conditions. The measurable benefits from intensive groundwater development may also come with detrimental hydrogeological and environmental consequences, which are additional direct and indirect costs. To ensure a rational and sustainable use of the groundwater resource, there must be an understanding of the physical structure and characteristics of the aquifer system and extraction must be managed in the context of the basin-wide water resources. Effective groundwater management necessitates empowerment of the appropriate institution to conduct the management activities and participatory stakeholder involvement in the development and implementation of the groundwater management programme. This includes establishing environmental goals and a monitoring plan tailored to the history of local groundwater abstraction, projected water demands, issues of concern (e.g. water quality protection and preservation of water-dependent wetlands) and the available water supplies within the basin. A series of considerations on technical, economic and social aspects are proposed, in agreement with the far-reaching nature of the issue.
12
Cencur Curk, Barbara, Branka Bracic Zeleznik, and Istvan Bogardi. "Adaptation of Water Supply to Changing Climate and Land-Use Activities, Case of Ljubljana Water Supply, Slovenia." Water 12, no. 1 (January 18, 2020): 288. http://dx.doi.org/10.3390/w12010288.
Full textAbstract:
A risk management methodology is presented for the adaptation of water supply to changing climate and land-use activities, considering socio-economic aspects. Several management options were selected for the case of the public water supply of Ljubljana, the capital of Slovenia. The major management actions for improving drinking water safety are (1) land-use limitations within the drinking water protection areas and (2) drinking water treatment. Trends in groundwater level are decreasing, above all in the area of well fields; therefore, artificial recharge and setting up a new independent well field were also considered. The management actions were evaluated according to several criteria, such as water supply risk reduction for the various users (drinking, agricultural, and industrial) and realization of the actions (cost, flexibility, and leg time). For management options, the ranking “Fuzzy Decimaker” tool was applied, which is based on a Multiple Criterion Decision Making (MCDM) technique. Ranking of management actions has shown that all management actions are good as they are clustering in the corner close to the ideal value. For a particular well field, farming limitations in the drinking water protection areas are the best and water treatment is the worst management action, which is due to high costs, low flexibility, and longer lag time.
13
Wu, Jin, Jingchao Liu, Zenghui Pan, Boxin Wang, and Dasheng Zhang. "Spatiotemporal distributions and ecological risk assessment of pharmaceuticals and personal care products in groundwater in North China." Hydrology Research 51, no. 5 (April 20, 2020): 911–24. http://dx.doi.org/10.2166/nh.2020.001.
Full textAbstract:
Abstract The contamination of surface water by pharmaceuticals and personal care products (PPCPs) has attracted widespread attention, but data regarding their impacts on groundwater (GW) are sparse. In river–GW interaction areas, rivers are likely an important source of PPCPs in aquifers, especially rivers impacted by sewage treatment plant effluent. Understanding the characterization, transport, and risk is valuable for the effective protection of vital aquatic ecosystem services, environmental health, and drinking water supplies. To attain this objective, statistics with spatial analysis and ecological risk were used to assess the effects of artificial recharge (AR) engineering on 16 PPCPs in aquifers in North China. The results indicated that 15 PPCPs were detected in unconfined and confined aquifers, with a few PPCPs being detected up to 1,000 ng/L. The most frequently detected PPCPs were sulfisoxazole, sulfachloropyridazine, sulfamerazine, sulfamethazine, sulfamethoxazole, and ibuprofen. In addition, the spatial and seasonal variations in most PPCPs were significant. Furthermore, the maximum concentrations were compared to the predicted no-effect concentrations to evaluate the ecological risk, and four PPCPs were found to be of medium or high ecological risk. This study highlights that AR engineering has a significant ecological effect on GW.
14
Bakare, B. F., S. Mtsweni, and S. Rathilal. "A pilot study into public attitudes and perceptions towards greywater reuse in a low cost housing development in Durban, South Africa." Journal of Water Reuse and Desalination 6, no. 2 (October 21, 2015): 345–54. http://dx.doi.org/10.2166/wrd.2015.076.
Full textAbstract:
The benefits of greywater reuse have been identified to include the protection of water resources, recovery of nutrients for agriculture, savings in fresh water usage, reduction in volumes of wastewater discharged into wastewater treatment works, groundwater recharge and sustainable water resource management. An understanding of public attitude and perceptions towards the reuse of greywater will help to facilitate a positive reaction to the promotion of such concepts. The study involved administering of structured questionnaires to residents within the community through field visits. The questionnaire addressed issues related to attitudes towards the reuse of greywater, perceived advantages related to the reuse of greywater and concerns related to public health issues regarding the reuse of greywater. A total number of 346 questionnaires were administered and respondents were aged from less than 19 to over 60 years. Of the respondents, 55% were female and 45% male. The findings revealed a complex and shifting relationship between attitudes towards and perception of the reuse of greywater. This paper thus presents the findings and assesses certain aspects of greywater reuse.
15
Chávez-Mejía, Navarro-González, Magaña-López, Uscanga-Roldán, Zaragoza-Sánchez, and Jiménez-Cisneros. "Presence and Natural Treatment of Organic Micropollutants and their Risks after 100 Years of Incidental Water Reuse in Agricultural Irrigation." Water 11, no. 10 (October 15, 2019): 2148. http://dx.doi.org/10.3390/w11102148.
Full textAbstract:
The aim of the research was to show the presence of micropollutants contained in the wastewater of Mexico City within the distribution canals of the Mezquital Valley (MV), as well as their retention in agricultural soil and aquifers. This system constitutes the world's oldest and largest example of the use of untreated wastewater for agricultural irrigation. The artificial recharge associated with the MV aquifers, with groundwater extracted for human consumption showing its importance as a water resource for Mexico City. The results of sampling show the presence of 18 compounds, with 10 of these considered as endocrine disruptor compounds (EDCs). The concentration of these pollutants ranged from 2 ng/L for 17 β-estradiol to 99 ng/L for DEHP, with these values decreasing throughout the course of the canals due to the wastewater dilution factor, their retention in agricultural soil, and their accumulation in the local aquifer. The main mechanisms involved in natural attenuation are adsorption, filtration, and biodegradation. Drinking water equivalent levels (DWELs) were estimated for 11 compounds with regard to acceptable daily intakes (ADIs), by assuming local exposure parameters for a rural Mexican population. These were compared with the maximum groundwater concentrations (Cgw) to screen the potential risks. The very low ratios of Cgw to DWELs indicate no appreciable human health risk from the presence of trace concentrations of these compounds in the source of drinking water in the MV. Despite this, far from being exceeded after more than 100 years of irrigation with residual water, the natural soil attenuation seems to remain stable.
16
Smeets, P. W. M. H., G. J. Medema, and J. C. van Dijk. "The Dutch secret: how to provide safe drinking water without chlorine in the Netherlands." Drinking Water Engineering and Science 2, no. 1 (March 16, 2009): 1–14. http://dx.doi.org/10.5194/dwes-2-1-2009.
Full textAbstract:
Abstract. The Netherlands is one of the few countries where chlorine is not used at all, neither for primary disinfection nor to maintain a residual disinfectant in the distribution network. The Dutch approach that allows production and distribution of drinking water without the use of chlorine while not compromising microbial safety at the tap, can be summarized as follows: 1. Use the best source available, in order of preference: – microbiologically safe groundwater, – surface water with soil passage such as artificial recharge or bank filtration, – direct treatment of surface water in a multiple barrier treatment; 2. Use a preferred physical process treatment such as sedimentation, filtration and UV-disinfection. If absolutely necessary, also oxidation by means of ozone or peroxide can be used, but chlorine is avoided; 3. Prevent ingress of contamination during distribution; 4. Prevent microbial growth in the distribution system by production and distribution of biologically stable (biostable) water and the use of biostable materials; 5. Monitor for timely detection of any failure of the system to prevent significant health consequences. New developments in safe drinking water in the Netherlands include the adaptation of the Dutch drinking water decree, implementation of quantitative microbial risk assessment (QMRA) by water companies and research into source water quality, drinking water treatment efficacy, safe distribution and biostability of drinking water during distribution and Legionella. This paper summarizes how the Dutch water companies warrant the safety of the drinking water without chlorine.
17
Smeets, P. W. M. H., G. J. Medema, and J. C. van Dijk. "The Dutch secret: safe drinking water without chlorine in the Netherlands." Drinking Water Engineering and Science Discussions 1, no. 2 (October 27, 2008): 173–212. http://dx.doi.org/10.5194/dwesd-1-173-2008.
Full textAbstract:
Abstract. The Netherlands is one of the few countries where chlorine is not used at all, neither for primary disinfection nor to maintain a residual disinfectant in the distribution network. The Dutch approach that allows production and distribution of drinking water without the use of chlorine while not compromising microbial safety at the tap, can be summarized as follows: Use the best source available, in order of preference: – microbiologically safe groundwater, – surface water with soil passage such as artificial recharge or bank filtration, – direct treatment of surface water in a multiple barrier treatment; Use a preferred physical process treatment such as sedimentation, filtration and UV-disinfection. If absolutely necessary, also oxidation by means of ozone or peroxide can be used, but chlorine is avoided; Prevent ingress of contamination during distribution; Prevent microbial growth in the distribution system by production and distribution of biologically stable (biostable) water and the use of biostable materials; Monitor for timely detection of any failure of the system to prevent significant health consequences. New developments in safe drinking water in the Netherlands include the adaptation of the Dutch drinking water decree, implementation of quantitative microbial risk assessment (QMRA) by water companies and research into source water quality, drinking water treatment efficacy, safe distribution and biostability of drinking water during distribution and \\textit{Legionella}. This paper summarizes how the Dutch water companies warrant the safety of the drinking water without chlorine.
18
Pardey, Ajay, V. S. Sapkal, and R. S. Sapkal. "A Review on Membrane Bioreactor (MBR) Technology: It’s Commercial Applications And Possibilities of Hybridization with other Membrane Techniques to Recover Valuable Industrial By-Products for Sustainable Development and Environmental Protection by and Large." IRA-International Journal of Technology & Engineering (ISSN 2455-4480) 7, no. 2 (S) (July 10, 2017): 202. http://dx.doi.org/10.21013/jte.icsesd201720.
Full textAbstract:
<p>Membrane bioreactor (MBR) technology is advancing rapidly around the world both in research and commercial applications. Despite the increasing number of studies and full-scale applications of MBR systems, directions and trends in academic research as well as commercial developments require further analysis. This paper aims to critically characterize and review worldwide academic research efforts in the area of MBRs as well as focus attention to commercial MBR applications. Various research papers published in peer-reviewed international journals were used as the database for the analysis provided in this paper. After a surge of MBR publications, research appears to have reached a plateau in the last 7 years using both submerged and external MBR units. Although much of the pioneering research occurred in Japan, France and the UK, countries such as South Korea, China and Germany have significantly contributed to the research pool in the last 5 years. The primary research focus has been on water filtration MBRs with limited growth in extractive and gas diffusion MBRs which still hold un-tapped potential. Fundamental aspects studied in academic research predominantly involve issues related to fouling, microbial characterization and optimizing operational performance. Zenon occupies the majority of the MBR market in America, whereas Kubota and Mitsubishi-Rayon has a larger number of installations in other parts of the world. Due to more stringent regulations and water reuse strategies, it is expected that a significant increase in MBR plant capacity and widening of application areas will occur in the future. Potential application areas include nitrate removal in drinking water treatment, removal of endocrine disrupting compounds from water and wastewater streams; enhancing bio-fuels production via membrane assisted fermentation and gas extraction and purification MBRs. Treatment technology for water recycling encompasses a vast number of options. Membrane processes are regarded as key elements of advanced wastewater reclamation and reuse schemes and are included in a number of prominent schemes world-wide, e.g. for artificial groundwater recharge, indirect potable reuse as well as for industrial process water production. Membrane bioreactors (MBRs) are a promising process combination of activated sludge treatment and membrane filtration for biomass retention.<br />Many researchers have concluded that wastewater reclamation in intended MBR technology is the method of choice when it is combined with other advanced treatment technologies.<br />As water shortages are increasing, the need for sustainable water treatment and the reuse of water is essential. Water reuse from wastewater can be accomplished in a membrane bioreactor (MBR) in the secondary activated sludge stage of a wastewater treatment plant. To remove viruses, dissolved organics and in organics still present in the MBR permeate, nanofiltration (NF) can be applied. Nevertheless, the major drawback of nanofiltration membranes is the production of a concentrate stream that cannot be discharged to the environment. The research show that the continuous production of reusable water from wastewater in a combined MBR and NF process with NF concentrates recirculation can be successful.</p>
19
Kopač, Irena, and Matevž Vremec. "Slovenian test case Vrbanski Plato aquifer in the EU HORIZON 2020 FREEWAT project." Acque Sotterranee - Italian Journal of Groundwater 6, no. 3 (September 29, 2017). http://dx.doi.org/10.7343/as-2017-287.
Full textAbstract:
The Slovenian case study in the EU HORIZON 2020 FREEWAT project was Vrbanski Plato aquifer. Slovenia is divided into two river basin districts: the Danube and the North Adriatic. The Vrbanski Plato aquifer, which he presents both natural and artificial bank filtration from the river Drava, is a part of the Danube river basin district and is the most important water source for 14 municipalities in the northeastern part of Slovenia. We investigated the groundwatersurface water interaction between river Drava and the porous aquifer in the geological old riverbed and possible reduction of city impact. This site is the oldest managed artificial groundwater recharge with riverbank filtration and has more than thirty years of successful operation. It is something special, very abundant in a small space, independent of drought and climate changes, but vulnerable due to the impact of the city. Under the city there is watershed dividing, which is shifting with different water management condition and we would like to have the least possible impact of the city. For optimal water management we decided to use FREEWAT plug-in within QGIS platform. With new developed FREEWAT plug-in in project FREEWAT, we made steady-state and transient groundwater model for presenting this shift of the watershed dividing under the city and optimal water management for this area. The model was designed in a way that it identifies and describes all major aspects of the physical hydrogeological system and water management. During the running of a project, there was an accident with heating oil spillage in city area, right on the watershed dividing. So we oriented with the transient groundwater model as well on heating oil spillage and pumping with additional wells at the place of the accident to present successful rehabilitation and the importance of the managed groundwater recharge. Our experience with FREEWAT platform during the Vrbanski Plato aquifer case study was very positive. The connection data of the GIS tool, open license and the database monitoring and model approaches functioned as the right tool for a professional approach and communicating with stakeholders. With groundwater models in FREEWAT platform, we defined optimal condition, with as less as possible the impact of groundwater below the city, for pumping water on the Vrbanski Plato, managed by Water Supply Maribor company and needed optimal level in river Drava managed by Drava Power Plants Company. Quantities of pumping for water supply and level of Drava River are the dominant components of water management in this area. Due to the time and financial constraints, we took into account the period from July 2014 to June 2017.
20
Anand, B., D. Karunanidhi, and T. Subramani. "Promoting artificial recharge to enhance groundwater potential in the lower Bhavani River basin of South India using geospatial techniques." Environmental Science and Pollution Research, May 18, 2020. http://dx.doi.org/10.1007/s11356-020-09019-1.
Full text
21
Tiwari, Ananda, Anna-Maria Hokajärvi, Jorge Santo Domingo, Michael Elk, Balamuralikrishna Jayaprakash, Hodon Ryu, Sallamaari Siponen, et al. "Bacterial diversity and predicted enzymatic function in a multipurpose surface water system – from wastewater effluent discharges to drinking water production." Environmental Microbiome 16, no. 1 (May 22, 2021). http://dx.doi.org/10.1186/s40793-021-00379-w.
Full textAbstract:
Abstract Background Rivers and lakes are used for multiple purposes such as for drinking water (DW) production, recreation, and as recipients of wastewater from various sources. The deterioration of surface water quality with wastewater is well-known, but less is known about the bacterial community dynamics in the affected surface waters. Understanding the bacterial community characteristics —from the source of contamination, through the watershed to the DW production process—may help safeguard human health and the environment. Results The spatial and seasonal dynamics of bacterial communities, their predicted functions, and potential health-related bacterial (PHRB) reads within the Kokemäenjoki River watershed in southwest Finland were analyzed with the 16S rRNA-gene amplicon sequencing method. Water samples were collected from various sampling points of the watershed, from its major pollution sources (sewage influent and effluent, industrial effluent, mine runoff) and different stages of the DW treatment process (pre-treatment, groundwater observation well, DW production well) by using the river water as raw water with an artificial groundwater recharge (AGR). The beta-diversity analysis revealed that bacterial communities were highly varied among sample groups (R = 0.92, p < 0.001, ANOSIM). The species richness and evenness indices were highest in surface water (Chao1; 920 ± 10) among sample groups and gradually decreased during the DW treatment process (DW production well; Chao1: 320 ± 20). Although the phylum Proteobacteria was omnipresent, its relative abundance was higher in sewage and industrial effluents (66–80%) than in surface water (55%). Phyla Firmicutes and Fusobacteria were only detected in sewage samples. Actinobacteria was more abundant in the surface water (≥13%) than in other groups (≤3%). Acidobacteria was more abundant in the DW treatment process (≥13%) than in others (≤2%). In total, the share of PHRB reads was higher in sewage and surface water than in the DW treatment samples. The seasonal effect in bacterial communities was observed only on surface water samples, with the lowest diversity during summer. Conclusions The low bacterial diversity and absence of PHRB read in the DW samples indicate AGR can produce biologically stable and microbiologically safe drinking water. Furthermore, the significantly different bacterial communities at the pollution sources compared to surface water and DW samples highlight the importance of effective wastewater treatment for protecting the environment and human health.