1???????????????????????????????????,????????Ч????,????????????м????????,????????????????Ч??????,??????????????????????.???????????????????????????С?
2???????????????????,????????????????.?????????????????????????????????????С?
3?????????а??????Ч??????????,???????????,??????????????COD??BOD?н??????Ч??.??????????????????з?????????????????????????,??????÷????????
4???????????????????????????б????????.???м??????????б??,??????????Ч??,????????????,???????,??????С??

5?????????????б????????????????????????????,????????????е?????

6??б???????????????????????,???????????
1?????????????????????г????????????????????????????
??2???????????????????????????????г?????????????л???BOD??????80%??90%??

??3?????????????????????????????????????????????????????????????????????????

    http://m.6rao.com/news/question/20230227095052.html