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2. Sewage sludge treatment - Wikipedia

   en.wikipedia.org/wiki/Sewage_sludge_treatment

   Sludge treatment in the sewage treatment plant of Birsfelden, Germany. Mechanical dewatering (centrifuge) at a large sewage treatment plant (Arrudas Treatment Plant, Belo Horizonte , Brazil). Water content of sludge may be reduced by centrifugation, filtration, and/or evaporation to reduce transportation costs of disposal, or to improve ...

3. Sewage sludge - Wikipedia

   en.wikipedia.org/wiki/Sewage_sludge

   Sewage sludge treatment is the process of removing contaminants from wastewater.Sewage sludge is produced from the treatment of wastewater in sewage treatment plants and consists of two basic forms — raw primary sludge and secondary sludge, also known as activated sludge in the case of the activated sludge process.

4. Sewage treatment - Wikipedia

   en.wikipedia.org/wiki/Sewage_treatment

   Activated sludge sewage treatment plant in Massachusetts, US. 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.

5. Activated sludge - Wikipedia

   en.wikipedia.org/wiki/Activated_sludge

   Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.

6. Extended aeration - Wikipedia

   en.wikipedia.org/wiki/Extended_aeration

   Mechanized sewage treatment typically includes settling in a primary clarifier, followed by biological treatment and a secondary clarifier. Both clarifiers produce waste sludge requiring sewage sludge treatment and disposal. Activated sludge agitates a portion of the secondary clarifier sludge in the primary clarifier effluent.

7. ‘Forever chemicals’ in sludge used to fertilize farms can ...

   www.aol.com/news/forever-chemicals-sludge-used...

   Chemicals found in sewage sludge that some farmers use to fertilize fields and pastures can pose a threat to human and animal health, the US Environmental Protection Agency said Tuesday.

8. Aerobic digestion - Wikipedia

   en.wikipedia.org/wiki/Aerobic_digestion

   Aerobic digestion is a process in sewage treatment designed to reduce the volume of sewage sludge and make it suitable [1] for subsequent use. [2] More recently, technology has been developed that allows the treatment and reduction of other [3] organic waste, such as food, cardboard and horticultural waste.

9. 'Forgotten step child:' Normally quiet Utica voices outrage ...

   www.aol.com/forgotten-step-child-normally-quiet...

   Veolia takes sewage from a plant in Jackson, puts it through a treatment process, dries it and turns it into a biosolids fertilizer. The farmer would then pick it up and land apply it to the property.