180 commonly used terminology for water treatment(sewage treatment)
180 commonly used terminology for water treatment(sewage treatment) By Zhao from Onlyzone,a manufacturer of water treatment bio ceramic ball filter media in China. 88. Domestic sewage: mainly the discharge water produced by various kitchen water, washing water and toilet water used in human life, mostly non-toxic inorganic salts, domestic sewage contains a lot of nitrogen, phosphorus,