?,???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???????,???,??

?????:

?

???

????????????

?????????????????????????????????????????????

????(???????????????????)

???????????????

? ??????????????????????? ????? “?????????????????????????????”????

???:????????

??

??:???????????,??????????,??????????????