??
?,???2????15???????????????:????????2??????????4?,????? “??????????????”,???????!
??,????????????????,2???????12????????18????,?????????“??”?
?????,???????:???????????????????????????????????,??????,?????
?????????? | ???
?????????????????,????????????????????????????????????
???
?????????????????????,?????,????
???????????????????,??0?????60???,???????????????????,?????????????????????
??????????????,???????,?75%???
?????????????????????????????,??????
????,???
?????????(??18??)??????????(????????2448??????)???(????25?????,???23??????????????????????????????????)??????????????(?060??????????)???????(?????624???????,??????)??????????????
?????,???????,??????????:
??????????
??????????????????????????????????????
?????????????,??????,???????????
?????????,??
??,????????????
?,??????,????1?????3????????????????????????,?????????????????????
????????,???
?????????,???????????????
??????,???????????,????????
??????????????
????«???????????»,??????,???
???????
?????????????????,?????????,????,?????;
????????(???????????)??5000mg/L~10000mg/L??,??????????,???????????????????????30????????,???????;
?,????????;
???????;????????????????????
????????????????
??,???;???????,??????????????1000mg/L????????30???????,??????????
????????????
???????????????????????,??????500mg/L?????30???????;????????????30??????????????,?????,????????????????
?????
????(??)??????????????,?????????????30?????????????,????????500mg/L?????????,????30?????????,???
?????????????
?????,??,???????????????????????????0.5%?3?;????0.1%???
?
???????
???????????
??????
??????????????,?????20????????
?????
??????????????,???,??????????????
?????
??????????
?????,???????????????,????????????????
???????,??????????
????
??3???,????,??
???:
?????
???
???????
????????????????????????????
?????????????(???????)
????????????????????
???????????? ?????? ????????????????????? “??”?
?????:????????????????????????????
????????????????,??????!????……?????????????