Your search found 4 records
1 Kehrein, P.; van Loosdrecht, M.; Osseweijer, P.; GarfĂ­, M.; Dewulf, J.; Posada, J. 2020. A critical review of resource recovery from municipal wastewater treatment plants - market supply potentials, technologies and bottlenecks. Environmental Science: Water Research and Technology, 6(4):877-910. [doi: https://doi.org/10.1039/C9EW00905A]
Municipal wastewater ; Resource recovery ; Wastewater treatment plants ; Technology ; Water reuse ; Health hazards ; Fertilizers ; Membrane filtration ; Oxidation ; Sewage sludge ; Waste incineration ; Cellulose ; Energy recovery ; Methane ; Biogas ; Thermal energy ; Nutrients ; Markets ; Policies / Netherlands / Belgium / Flanders
(Location: IWMI HQ Call no: e-copy only Record No: H049692)
https://pubs.rsc.org/en/content/articlepdf/2020/ew/c9ew00905a
https://vlibrary.iwmi.org/pdf/H049692.pdf
(2.11 MB) (2.11 MB)
In recent decades, academia has elaborated a wide range of technological solutions to recover water, energy, fertiliser and other products from municipal wastewater treatment plants. Drivers for this work range from low resource recovery potential and cost effectiveness, to the high energy demands and large environmental footprints of current treatment-plant designs. However, only a few technologies have been implemented and a shift from wastewater treatment plants towards water resource facilities still seems far away. This critical review aims to inform decision-makers in water management utilities about the vast technical possibilities and market supply potentials, as well as the bottlenecks, related to the design or redesign of a municipal wastewater treatment process from a resource recovery perspective. Information and data have been extracted from literature to provide a holistic overview of this growing research field. First, reviewed data is used to calculate the potential of 11 resources recoverable from municipal wastewater treatment plants to supply national resource consumption. Depending on the resource, the supply potential may vary greatly. Second, resource recovery technologies investigated in academia are reviewed comprehensively and critically. The third section of the review identifies nine non-technical bottlenecks mentioned in literature that have to be overcome to successfully implement these technologies into wastewater treatment process designs. The bottlenecks are related to economics and value chain development, environment and health, and society and policy issues. Considering market potentials, technological innovations, and addressing potential bottlenecks early in the planning and process design phase, may facilitate the design and integration of water resource facilities and contribute to more circular urban water management practices.

2 Nikiema, Josiane; Mateo-Sagasta, Javier; Asiedu, Zipporah; Saad, Dalia; Lamizana, B. 2020. Water pollution by plastics and microplastics: a review of technical solutions from source to sea. Nairobi, Kenya: United Nations Environment Programme (UNEP). 112p.
Water pollution ; Plastics ; Microplastics ; Waste management ; Sea pollution ; Freshwater pollution ; Contamination ; Water quality ; Wastewater treatment ; Treatment plants ; Recycling ; Technology ; Drinking water treatment ; Industrial wastewater ; Costs ; Municipal wastewater ; Solid wastes ; Sewage sludge ; Landfill leachates ; Waste incineration ; Risk ; Public health ; Health hazards ; Developing countries ; Policies ; Energy recovery ; Wetlands / USA / Europe / China
(Location: IWMI HQ Call no: e-copy only Record No: H050126)
https://wedocs.unep.org/bitstream/handle/20.500.11822/34424/WPMM.pdf?sequence=4&isAllowed=y
https://vlibrary.iwmi.org/pdf/H050126.pdf
(2.63 MB) (26.6 MB)

3 Nikiema, Josiane; Asiedu, Zipporah; Mateo-Sagasta, Javier; Saad, Dalia; Lamizana, B. 2020. Catalogue of technologies to address the risks of contamination of water bodies with plastics and microplastics. Nairobi, Kenya: United Nations Environment Programme (UNEP). 62p.
Water pollution ; Plastics ; Microplastics ; Contamination ; Risk ; Waste management ; Wastewater treatment ; Technology ; Treatment plants ; Recycling ; Drinking water treatment ; Sewage sludge ; Landfill leachates ; Waste incineration ; Industrial wastewater ; Effluents ; Filtration ; Sea pollution ; Wetlands ; Cost benefit analysis ; Maintenance ; Developing countries ; Gender ; Women ; Policies ; Investment
(Location: IWMI HQ Call no: e-copy only Record No: H050127)
https://wedocs.unep.org/bitstream/handle/20.500.11822/34423/CTWM.pdf?sequence=3&isAllowed=y
https://vlibrary.iwmi.org/pdf/H050127.pdf
(1.53 MB) (15.0 MB)

4 Vuori, L.; Ollikainen, M. 2022. How to remove microplastics in wastewater? A cost-effectiveness analysis. Ecological Economics, 192:107246. (Online first) [doi: https://doi.org/10.1016/j.ecolecon.2021.107246]
Microplastic pollution ; Wastewater treatment ; Treatment plants ; Cost benefit analysis ; Sludge treatment ; Waste incineration ; Aquatic environment ; Sensitivity analysis
(Location: IWMI HQ Call no: e-copy only Record No: H050776)
https://www.sciencedirect.com/science/article/pii/S0921800921003050/pdfft?md5=cd422825c52fb9fe4c61daf8da1cafef&pid=1-s2.0-S0921800921003050-main.pdf
https://vlibrary.iwmi.org/pdf/H050776.pdf
(1.01 MB) (1.01 MB)
Millions of tonnes of plastic litter end up annually in the environment causing damage to the ecosystem. There are currently no standards regulating the amount of microplastic in wastewater, and the question is, should there be? Answering this question requires an understanding of damages microplastic causes to the environment and its removal potential from wastewater. This paper examines the cost-effectiveness of three wastewater treatment (activated sludge, rapid sand filtering and membrane bioreactor) and two sludge management technologies (anaerobic digestion and incineration), in terms of their microplastic removal capacity regarding aquatic and terrestrial ecosystems. We find removing microplastic from wastewater technically feasible and cost-effective. Membrane bioreactor with sludge incineration preventing removed microlitter from accumulating in soils is the most cost-effective option. This gives grounds for extending government regulation to microplastics in wastewater treatment plants. Policy targeting companies using microplastics in their products is, however, necessary to solve the problem ultimately.

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