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Constructed wetland for decentralized wastewater treatment at a school in Lusaka, Zambia. Decentralized wastewater systems (also referred to as decentralized wastewater treatment systems) convey, treat and dispose or reuse wastewater from small and low-density communities, buildings and dwellings in remote areas, individual public or private properties. [1]
BORDA has worked in India since 1979, making it the oldest region to be served by the organization. Programs implemented span the range of BORDA services, from Decentralized Wastewater Treatment (DEWATS) to Decentralized Energy Supplies. Currently, BORDA-South Asia (BORDA-SA) works in nine Indian states, as well as neighboring regions.
Chemical addition wastewater treatment; Clarifier; Coarse bubble diffusers; Composting toilet; Constructed wetland; Cross-flow filtration; Dark fermentation; Decanter centrifuge; Decentralized wastewater system; Diffuser (sewage) Dissolved air flotation; Dissolved gas flotation; Desalination; Distillation; Effluent Decontamination System ...
Today, MBBR technology is used for municipal sewage treatment, industrial wastewater treatment, and decentralized wastewater treatment. This technology has been used in many different industries, some of them being: [citation needed] Automotive industry; Chemical industry; Food and beverage; Metal plating and finishing
Onsite wastewater treatment systems have also contributed to an overabundance of nutrients in ponds, lakes, and coastal estuaries, leading to the excessive growth of algae and other nuisance aquatic plants (USEPA, 1996b). In addition, onsite systems contribute to contamination of drinking water sources.
Sewage from the city of Arcata is treated and released to Humboldt Bay via complex flow routing through a number of contiguous ponds, wetlands, and marshes. Resemblance of treatment features to natural bay environments may cause potential ambiguity about where wastewater ceases to be considered partially treated sewage and meets enhancement objectives of the California Bays and Estuaries ...
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