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"When domestic wastewater is treated, a solid by-product accumulates in the wastewater treatment plant and must be removed periodically to keep the plant operating properly. The collected material, called biosolids or more commonly "sewage sludge," is high in organic content, and contains moderate amounts of nutrients that are needed by plants.
Solid Waste Tree, Based on Resource Conservation and Recovery Act, United States Environmental Protection Agency. Solid waste means any garbage or refuse, sludge from a wastewater treatment plant, water supply treatment plant, or an air pollution control facility and other discarded material, including solid, liquid, semi-solid, or contained gaseous material resulting from industrial ...
The Sewage Sludge Directive has been evaluated several times under EU proposals to build a circular economy through the reduction and reuse of wastes. [98] [99] In 2014, a European Commission evaluation of the Sewage Sludge Directive suggested it was appropriate for its goals, and did not need revision.
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 ...
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A Florida judge denied a motion to temporarily reinstate the extra $300 in weekly unemployment benefits that were terminated prematurely this summer.
Florida Gov. Ron DeSantis declared a state of emergency Saturday after a significant leak at a large pond of wastewater threatened to flood roads and burst a system that stores polluted waters.
In maturation ponds, sludge accumulation is very low. [6] Sludge removal, also called desludging, may be done in two basic ways: (i) interrupting the operation of the pond for desludging or (ii) keeping the pond in operation while desludging. [6] In the first case, the influent wastewater to the pond to be desludged is closed.