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

??:

??

???

???????

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

???(??)

?????

???? ????????? ? “??????”?????

??????:??

??

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