Search results
- Dictionarysew·age sludge
noun
- 1. semiliquid waste obtained from the processing of municipal sewage, often used as a fertilizer.
Powered by Oxford Dictionaries
noun
Powered by Oxford Dictionaries
Sewage sludge is the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater. The term "septage" also refers to sludge from simple wastewater treatment but is connected to simple on-site sanitation systems, such as septic tanks. Wikipedia