??�???????�????

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

????,???????��???????????????????7?????????,?????,????2.4????????????????35.8?????????????1000???,????????88????????�??�????????????????,????�??????????�?

????,????????????2019??????,???????????????�?�,????????,???????�?�????????????????????�??�???????

�????�????????�??�

??�?�,?????,???????????????????????????????????�????�?

??????????,??????????,????????�??????????????????�?,????????????????????????????????????????????10??5000??????�????????�,???,????????????

???????????????B?????????X??????????????????????????,???

????????,�????????????�????????????????????????,??????????????????????????????????,�????�??,???�?�,????????????,???????,???pH?????(????)???????,�??????????�????????????,?????�????�?

????,??????????????,�??�??,?????????????????????????????????????123?,??????????5??????64?????????,??????,?????????????,??????????????????,�???�?????5???????????,????500???

??????????????�??�

???,??????9450??,????,??????????????,?????

??????䢺????????????????2000??,???�????�?;?????????????,????????????1900??????,???;??????????,??,??�???????�???????????????

???????????,????�???�??,?,????????(??????????)?????????�???????????,????????????,????????????????????????????????????????????�??,??????,?????????????,??�?????????�?????????

?????,??????�?�?????????�??�??�?�??????,?????????????????,?????????,?????????,??????????????????????3?????????????????,?450????

????-??? ??

?????????

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

?????,???????100??????????�?????(LY/T 2737-2016)�,???????????????,????????500??????;???????,?????????????300-499????;??????,??????100-299????????????

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