???????????,??????!????……

??

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

?:

?

?????????

???????????

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

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

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

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

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

?????????

????????????????,??????!????……?????

????????