In November 2016, our company entered into a cooperation agreement with shandong hongjitang pharmaceutical group. The comprehensive pharmaceutical park adopts the "one enterprise, one management" governance mode to monitor COD, ammonia nitrogen, flow rate and other indicators online, so as to control pollution sources from the source and strictly control upstream enterprises' excessive emissions. After deep treatment, the water quality indexes were: COD=45mg/L,BOD=1045mg/L, total nitrogen =15mg/L, total phosphorus =0.5mg/L, PH:6-9,SS=10mg/L. The discharge standard has reached the water quality of key protected areas in "comprehensive discharge standard of water pollutants in xiaoqing river basin of shandong province" (db37/656-2006)