中(zhong)水(shui)(shui)(shui)(shui)(shui)回用(yong)水(shui)(shui)(shui)(shui)(shui)處理系統是指將生活污水(shui)(shui)(shui)(shui)(shui)作(zuo)為水(shui)(shui)(shui)(shui)(shui)源，經(jing)過適當處理后作(zuo)雜用(yong)水(shui)(shui)(shui)(shui)(shui)，其(qi)水(shui)(shui)(shui)(shui)(shui)質指標間(jian)于上水(shui)(shui)(shui)(shui)(shui)和下(xia)水(shui)(shui)(shui)(shui)(shui)之間(jian)，稱為中(zhong)水(shui)(shui)(shui)(shui)(shui)，相應的技(ji)術(shu)(shu)稱為中(zhong)水(shui)(shui)(shui)(shui)(shui)技(ji)術(shu)(shu)。經(jing)處理后的中(zhong)水(shui)(shui)(shui)(shui)(shui)可用(yong)到(dao)廁所沖洗、園林灌溉、道路保潔、城市噴(pen)泉等。對于淡水(shui)(shui)(shui)(shui)(shui)資源缺乏，城市供水(shui)(shui)(shui)(shui)(shui)嚴重(zhong)不足的缺水(shui)(shui)(shui)(shui)(shui)地區(qu)，采用(yong)中(zhong)水(shui)(shui)(shui)(shui)(shui)技(ji)術(shu)(shu)既能(neng)節約水(shui)(shui)(shui)(shui)(shui)源，又能(neng)使污水(shui)(shui)(shui)(shui)(shui)無(wu)害(hai)化，是防治水(shui)(shui)(shui)(shui)(shui)污染的重(zhong)要途徑，也(ye)是我國目前及將來長時(shi)間(jian)內(nei)重(zhong)點(dian)推廣的新技(ji)術(shu)(shu)、新工藝。