Who is the owner of Seine Aval wastewater treatment plant?
Owner: Syndicat Intercommunal pour lAssainissement de lAgglomeration Parisienne (SIAAP)/Greater Paris Wastewater Treatment Authority. The Seine Aval plant, the largest in Europe, is located in Acheres, 23 km northwest of Paris, and began operating in 1940. Visually the plant looks far less industrial than other wastewater plants.
How many miles long is the Boston sewer plant?
The plant includes both a five-mile-long, 14-ft dia underwater tunnel bringing influent from the Nut Island primary treatment plant, and a 9.5-mile long, 24-ft dia outfall tunnel to deposit the treated effluent into Massachusetts Bay. The plant handles sewage from 2.5 million people in 43 communities in the greater Boston area. 3.
Where is the largest sewage treatment plant in the United States?
Deer Island Sewage Treatment Plant Boston, USA. Capacity: 1.27 billion gallons per day. Owner: Massachusetts Water Resources Authority (MWRA).
How many gallons of water does the Detroit wastewater treatment plant hold?
Detroit Wastewater Treatment Plant Detroit, USA. Capacity: 930 million gallons per day. Owner: Detroit Water and Sewerage Department. The plant began operating in 1939, and only offered primary treatment at that time.
How many people does the Detroit wastewater plant serve?
The plant incorporates a pure-oxygen activated sludge process, with covered rectangular tanks. It serves 3.5 million people living in Detroit and 76 surrounding communities in southeastern Michigan, a region of 946 square miles. 4.
How tall is a sewage digester?
Secondary treatment is accomplished using both gravity treatment and an oxygen-activated sludge system, handled by twelve 140-ft tall, 90-ft dia egg-shaped sewage sludge digesters, the largest digesters in North America at that time. The methane produced by digestion is fed to a generator, producing 3MW of electricity.
What is anaerobic sludge digester?
Anaerobic sludge digesters were added to the plant as part of the expansion, as well as a sludge drying and disposal facility. The digestion process reduced the volume of raw sludge. A portion of the digested and dewatered sludge is treated further by thermal drying, and the remaining portion is landfilled.
What was the 1972 Clean Water Act?
The 1972 Federal Water Pollution Control Act (the Clean Water Act), which required all municipal wastewater to undergo full secondary treatment, led to the construction of aeration tanks, final clarifiers, cryogenic oxygen plants and additional sludge handling facilities at the plant.
How does wastewater disinfect?
Following primary and secondary treatment, the wastewater undergoes disinfection to kill bacteria, first mixing it with sodium hypochlorite, followed by adding sodium bisulfite to dechlorinate the water so that the discharge will not threaten marine organisms.
How much is the EPM plant expansion?
The plant is currently undergoing a $329 million expansion, which will increase it's capacity to 660 million gal per day when it is completed. The treated water from the plant is used to irrigate an adjoining 40-acre experimental farm that grows olives, lemons, flowers, jojoba, jetrova and cotton. EPM Consultancy.
Where does Hong Kong receive its wastewater?
It receives wastewater from the Kowloon peninsula and many parts of Hong Kong Island, about 75 percent of the catchment area of the Harbour Area Treatment Scheme (HATS), a sewage collection, treatment and disposal scheme for areas on both sides of Victoria Harbour. An expansion program, known as HATS Stage 2A, is currently under way.