并对排污量进行初步估算，得出北宅污水排放占岛市螃山区北宅街道办事处污水处理规划方案研究现状水量小、高度分散、以生活污水为主的三个特点。
The total sewage quantity was preliminarily estimated , three characteristics of sewage drainage were found out to be small-quantity , highly scattered and domestic .
北宅街道