Your search found 8 records
1 Vanderzalm, J.; Sidhu, J.; Bekele, E.; Ying, G. G.; Pavelic, P.; Toze, S.; Dillon, P.; Kookana, R.; Hanna, J.; Barry, K.; Yu, X. Y.; Nicholson, B.; Morran, J.; Tanner, S.; Short, S. 2009. Water quality changes during aquifer storage and recovery. Denver, CO, USA: Water Research Foundation; Victoria, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO). 163p.
Aquifers ; Groundwater management ; Water quality ; Drinking water ; Pathogens ; Microorganisms ; Monitoring ; Arsenic ; Case studies
(Location: IWMI HQ Call no: e-copy only Record No: H042553)
(1.68 MB)
2 Okuda, A.; Higa, T. 1997. Purification of wastewater with effective microorganisms and its utilization in agriculture. In Senanayake, Y. D. A.; Sangakkara, U. R. (Eds.). Fifth International Conference on Kyusei Nature Farming, Bangkok, Thailand, 23-26 October 1997. Saraburi, Thailand: Kyusei Nature Farming Center. pp.246-253.
Wastewater treatment ; Microorganisms ; Crop production ; Vegetables ; Sewage sludge ; Fertilizers ; Wastewater irrigation
(Location: IWMI HQ Call no: e-copy only Record No: H044402)
(0.13 MB)
The potential of using Effective Microorganisms (EM) to purify waste water, including that of a sewage system, for recycling purposes was evaluated. The studies were extended to examine the potential of using treated sewage sludge as a fertilizer in crop production. Long term application of EM reduced the adverse characteristics of waste water. The quality of the treated water was high, which indicated its potential use for reuse without health hazards. It also enhanced crop growth as measured by its effects on cucumber. Application of EM products to tap water also eliminated the ill effects generally found in chlorinated water. The treated city water was more effective in promoting plant growth. Application of EM to sewage sludge enhanced its value as a fertilizer. Plant growth was enhanced in contrast to application of untreated sludge, which had toxic effects. The value of EM in sanitation programs and the potential of recycling wastes after treatment for nature farming at a low cost is presented on the basis of these studies.
3 US Environmental Protection Agency (EPA); National Risk Management Research Laboratory; USAID. 2012. 2012 Guidelines for water reuse. Washington, DC, USA: US Environmental Protection Agency (EPA); Cincinnati, OH, USA: National Risk Management Research Laboratory; Washington, DC, USA: USAID. 642p. (EPA/600/R-12/618)
Water reuse ; Guidelines ; Urbanization ; Water Management ; Water resources ; Water conservation ; Water scarcity ; Water supply ; Water storage ; Surface water ; Water quality ; Drinking water ; Pumping ; Aquifers ; Lakes ; Wells ; Institutions ; Land use ; Environmental protection ; Public health ; Agricultural production ; Livestock ; Wetlands ; Wildlife ; Fisheries ; Rivers ; Energy generation ; Groundwater recharge ; Water rights ; Regulations ; Indicators ; Climate change ; Precipitation ; Microorganisms ; Biological contamination ; Chemical contamination ; Filtration ; Case studies
(Location: IWMI HQ Call no: e-copy only Record No: H045517)
http://www.waterreuseguidelines.org/images/documents/2012epaguidelines.pdf
https://vlibrary.iwmi.org/pdf/H045517.pdf
https://vlibrary.iwmi.org/pdf/H045517.pdf
(27.96 MB) (27.96MB)
4 Pradhan, Surendra K.; Kauppinen, A.; Martikainen, K.; Pitkanen, T.; Kusnetsov, J.; Miettinen, I. T.; Pessi, M.; Poutiainen, H.; Heinonen-Tanski, H. 2013. Microbial reduction in wastewater treatment using Fe3+ and Al3+ coagulants and PAA disinfectant. Journal of Water and Health, 11(4):581-589. [doi: https://doi.org/10.2166/wh.2013.241]
Wastewater treatment ; Drinking water ; Microorganisms ; Campylobacter ; Salmonella ; Norovirus ; Coagulants ; Peracetic acid
(Location: IWMI HQ Call no: e-copy only Record No: H046115)
(0.59 MB)
Wastewater is an important source of pathogenic enteric microorganisms in surface water and a major contaminating agent of drinking water. Although primary and secondary wastewater treatments reduce the numbers of microorganisms in wastewater, significant numbers of microbes can still be present in the effluent. The aim of this study was to test the feasibility of tertiary treatment for municipal wastewater treatment plants (WWTPs) using PIX (FeCl3) or PAX (AlCl3) coagulants and peracetic acid (PAA) the disinfectant to reduce microbial load in effluent. Our study showed that both PIX and PAX efficiently reduced microbial numbers. PAA disinfection greatly reduced the numbers of culturable indicator microorganisms (Escherichia coli, intestinal enterococci, F-specific RNA coliphages and somatic DNA coliphages). In addition, pathogenic microorganisms, thermotolerant Campylobacter, Salmonella and norovirus GI, were successfully reduced using the tertiary treatments. In contrast, clostridia, Legionella, rotavirus, norovirus GII and adenovirus showed better resistance against PAA compared to the other microorganisms. However, interpretation of PCR analysis results will need further studies to clarify the infectivity of the pathogenic microbes. In conclusion, PIX and PAX flocculants followed by PAA disinfectant can be used as a tertiary treatment for municipal WWTP effluents to reduce the numbers of indicator and pathogenic microorganisms.
5 Silverman, A. I.; Akrong, M. O.; Amoah, Philip; Drechsel, Pay; Nelson, K. L. 2013. Quantification of human norovirus GII, human adenovirus, and fecal indicator organisms in wastewater used for irrigation in Accra, Ghana. Journal of Water and Health, 11(3):473-488.
Wastewater irrigation ; Wastewater treatment ; Health hazards ; Pathogenic viruses ; Feaces ; Microorganisms ; WHO / Ghana / Accra
(Location: IWMI HQ Call no: e-copy only Record No: H046528)
(0.54 MB)
Quantitative microbial risk assessment (QMRA) is frequently used to estimate health risks associated with wastewater irrigation and requires pathogen concentration estimates as inputs. However, human pathogens, such as viruses, are rarely quantified in water samples, and simple relationships between fecal indicator bacteria and pathogen concentrations are used instead. To provide data that can be used to refine QMRA models of wastewater-fed agriculture in Accra, stream, drain, and waste stabilization pond waters used for irrigation were sampled and analyzed for concentrations of fecal indicator microorganisms (human-specific Bacteroidales, E. coli, Enterococci, thermotolerant coliform, and somatic and F+ coliphages) and two human viruses (adenovirus and norovirus genogroup II). E. coli concentrations in all samples exceeded limits suggested by the World Health Organization, and human-specific Bacteroidales was found in all but one sample, suggesting human fecal contamination. Human viruses were detected in 16 out of 20 samples, were quantified in 12, and contained 2–3 orders of magnitude more norovirus than predicted by norovirus to E. coli concentration ratios assumed in recent publications employing indicator-based QMRA. As wastewater irrigation can be beneficial for farmers and municipalities, these results should not discourage water reuse in agriculture, but provide motivation and targets for wastewater treatment before use on farms.
6 Cofie, Olufunke; Nikiema, Josiane; Impraim, Robert; Adamtey, N.; Paul, Johannes; Kone, D. 2016. Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 47p. (Resource Recovery and Reuse Series 03) [doi: https://doi.org/10.5337/2016.204]
Resource recovery ; Environmental effects ; Nutrients ; Solid wastes ; Recycling ; Composting ; Faecal coliforms ; Sewage sludge ; Urbanization ; Urban wastes ; Food wastes ; Waste management ; Developing countries ; Farmyard manure ; Excreta ; Soil organic matter ; Organic wastes ; Organic fertilizers ; Public health ; Health hazards ; Sanitation ; Moisture content ; Temperature ; pH ; Microorganisms ; Aeration ; Pathogens ; Emission ; Livestock ; Heavy metals
(Location: IWMI HQ Call no: IWMI Record No: H047536)
(3 MB)
Biological treatment, composting, in particular, is a relatively simple, durable and inexpensive alternative for stabilizing and reducing biodegradable waste. Co-composting of different waste sources allows to enhance the compost nutrient value. In particular, integration of ‘biosolids’ from the sanitation sector as potential input material for co-composting would provide a solution for the much needed treatment of fecal sludge from on-site sanitation systems, and make use of its high nutrient content. This research paper elaborates in detail the main parameters that govern the co-composting process as well as factors that control the production of a safe and valuable quality compost. It further explains technological options to tailor the final product to crop and farmer needs.
7 WHO. 2019. Microplastics in drinking-water. Geneva, Switzerland: WHO. 101p.
Microplastics ; Drinking water treatment ; Health hazards ; Public health ; Risk assessment ; Freshwater ; Wastewater treatment plants ; Water pollution ; Chemical contamination ; Microorganisms ; Biological contamination
(Location: IWMI HQ Call no: e-copy only Record No: H049398)
https://apps.who.int/iris/bitstream/handle/10665/326499/9789241516198-eng.pdf?ua=1
https://vlibrary.iwmi.org/pdf/H049398.pdf
https://vlibrary.iwmi.org/pdf/H049398.pdf
(3.85 MB) (3.85 MB)
8 Nohara, N. M. L.; Ariza-Tarazona, M. C.; Triboni, E. R.; Nohara, E. L.; Villarreal-Chiu, J. F.; Cedillo-Gonzalez, E. I. 2024. Are you drowned in microplastic pollution? A brief insight on the current knowledge for early career researchers developing novel remediation strategies. Science of The Total Environment, 918:170382. (Online first) [doi: https://doi.org/10.1016/j.scitotenv.2024.170382]
Microplastic pollution ; Nanoplastics ; Degradation ; Biodegradation ; Microorganisms ; Waste management ; Recycling ; Landfills ; Mechanical properties ; Polyethylene ; Filtration ; Human health ; Drinking water ; Contaminants
(Location: IWMI HQ Call no: e-copy only Record No: H052618)
https://www.sciencedirect.com/science/article/pii/S0048969724005175/pdfft?md5=cb2d396fd2b98fd29231b06c1b909f08&pid=1-s2.0-S0048969724005175-main.pdf
https://vlibrary.iwmi.org/pdf/H052618.pdf
https://vlibrary.iwmi.org/pdf/H052618.pdf
(5.95 MB) (5.95 MB)
Microplastics (MPs) composed of different polymers with various shapes, within a vast granulometric distribution (1 µm - 5 mm) and with a wide variety of physicochemical surface and bulk characteristics spiral around the globe, with different atmospheric, oceanic, cryospheric, and terrestrial residence times, while interacting with other pollutants and biota. The challenges of microplastic pollution are related to the complex relationships between the microplastic generation mechanisms (physical, chemical, and biological), their physicochemical properties, their interactions with other pollutants and microorganisms, the changes in their properties with aging, and their small sizes that facilitate their diffusion and transportation between the air, water, land, and biota, thereby promoting their ubiquity. Early career researchers (ERCs) constitute an essential part of the scientific community committed to overcoming the challenges of microplastic pollution with their new ideas and innovative scientific perspectives for the development of remediation technologies. However, because of the enormous amount of scientific information available, it may be difficult for ERCs to determine the complexity of this environmental issue. This mini-review aims to provide a quick and updated overview of the essential insights of microplastic pollution to ERCs to help them acquire the background needed to develop highly innovative physical, chemical, and biological remediation technologies, as well as valorization proposals and environmental education and awareness campaigns. Moreover, the recommendations for the development of holistic microplastic pollution remediation strategies presented here can help ERCs propose technologies considering the environmental, social, and practical dimensions of microplastic pollution while fulfilling the current government policies to manage this plastic waste.
Powered by DB/Text WebPublisher, from
