sewage
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- n waste matter carried away in sewers or drains
- To ease the local water crisis, a new sewage-treatment center in Orange County, Calif.
- While the plants drink up nutrients in the sewage, countless bacteria and microbes roots break down pollutants.
- Inadequate sewage systems, overgrowth of hyacinths, industrial waste pollution, deforestation and heavy lakeshore development have left the lake with plastic bottles and other .