Concept information
Preferred term
污水处理系统
Definition
- 污水处理分为两步——初级和中级处理。初级处理包括从污水中去掉固体，留下做进一步处理或进入河流、海或土地中的泥浆以及相对干净的水。中级处理中，泥浆在很大的罐中搅拌以混入更多的氧气，使细菌分解有机物质并且留下无害的剩余物，这些剩余物沉积在罐的底部。处理之后，罐上部的干净的水被排放到河里，沉积物作为填埋物或排放到海里。
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URI
http://www.eionet.europa.eu/gemet/concept/7636
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