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epa.gov /cwsrf. The Clean Water State Revolving Fund (CWSRF) is a self-perpetuating loan assistance authority for water quality improvement projects in the United States. The fund is administered by the Environmental Protection Agency and state agencies. The CWSRF, which replaced the Clean Water Act Construction Grants program, provides loans ...
An aerobic treatment system (ATS), often called an aerobic septic system, is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic process used in septic systems. These systems are commonly found in rural areas where public sewers are not available ...
The term sewage treatment plant (STP) (or sewage treatment works) is nowadays often replaced with the term wastewater treatment plant (WWTP). [7] [8] Strictly speaking, the latter is a broader term that can also refer to industrial wastewater treatment. The terms water recycling center or water reclamation plants are also in use as synonyms.
Coeur d'Alene (/ ˌkɔːr dəˈleɪn / ⓘ KOR də-LAYN; [6][7][8] French: Cœur d'Alène, lit. 'Heart of an Awl ' French pronunciation: [kœʁ d a.lɛn]) is a city and the county seat of Kootenai County, Idaho, United States. It is the most populous city in North Idaho and the principal city of the Coeur d'Alene Metropolitan Statistical Area.
Sewage treatment systems in the United States are subject to the Clean Water Act (CWA) and are regulated by federal and state environmental agencies. In most states, local sewage plants receive discharge permits from state agencies; in the remaining states and territories, permits are issued by the United States Environmental Protection Agency ...
The Coeur d'Alene River flows 37 miles (60 km) [4] from the Silver Valley into Lake Coeur d'Alene in the U.S. state of Idaho. The stream continues out of Lake Coeur d'Alene as the Spokane River. Before the Bunker Hill Smelter in the Kellogg area, which mined lead and silver, was forced to adopt environmental controls in the 1970s, there was so ...
Wastewater treatment. Wastewater treatment is a process which removes and eliminates contaminants from wastewater. It thus converts it into an effluent that can be returned to the water cycle. Once back in the water cycle, the effluent creates an acceptable impact on the environment. It is also possible to reuse it.
Secondary treatment. This small secondary clarifier at a rural sewage treatment plant is a typical phase separation mechanism to remove biological solids formed in a suspended growth or fixed-film bioreactor. Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension ...