????:1???????????:??????

2????????

3?????

4???????

5???????????

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

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

?????

??????????

????????

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

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

????

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

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