北(Bei)京(Jing)市(Shi)密(Mi)云(Yun)县(Xian)污(Wu)水(Shui)处(Chu)理(Li)厂(Chang)再(Zai)生(Sheng)水(Shui)回(Hui)用(Yong)工(Gong)程(Cheng)再(Zai)生(Sheng)水(Shui)厂(Chang)是(Shi)保(Bao)护(Hu)北(Bei)京(Jing)市(Shi)水(Shui)源(Yuan)八(Ba)厂(Chang)水(Shui)源(Yuan)的(De)重(Zhong)要(Yao)工(Gong)程(Cheng)，(?)是(Shi)解(Jie)决(Jue)密(Mi)云(Yun)县(Xian)潮(Chao)、(?)白(Bai)河(He)整(Zheng)治(Zhi)工(Gong)程(Cheng)配(Pei)套(Tao)水(Shui)源(Yuan)问(Wen)题(Ti)的(De)主(Zhu)要(Yao)途(Tu)径(Jing)。(?)工(Gong)程(Cheng)建(Jian)设(She)规(Gui)模(Mo)4.5万(Wan)m3/d；(?)它(Ta)以(Yi)密(Mi)云(Yun)县(Xian)污(Wu)水(Shui)处(Chu)理(Li)厂(Chang)二(?)级(Ji)处(Chu)理(Li)出(Chu)水(Shui)为(Wei)水(Shui)源(Yuan)，(?)经(Jing)过(Guo)深(Shen)度(Du)处(Chu)理(Li)后(Hou)水(Shui)质(Zhi)达(Da)到(Dao)回(Hui)用(Yong)要(Yao)求(Qiu)。(?)