??
??????????????,??????????????????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??,???????,?????????
???????:
???????
?????
????
????????????????????????
????????(?????????????)
??????????
???????? ?? ??????? “??”?????
??????:?????????????????
????????????????,????!??????……?????????????