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


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


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



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


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


?????????



1????????


??????????????????2g/L+???4g/L   95? 30min??????



???????+?? ?????4g/L+???8g/L  95? 40min????????????



2????????


???????????????????????????6g/L????????????????????????????????????????????????????????



??????????????????????5?6g/L,50???703???2min?????????



?????????????????15g/L?40????????????6g/L,30??5s?????????



???????55%?????5?10g/L???2?5g/L??36癇e NaOH 2?5ml/L????80?100????15?30min???1?30?40?



3????????


????20?30g/L?????????1?2g/L?,??30?45min??????????10?20g/L??70?????????????????????????????????????????????????????????????



?????????????????1g/L,???O 2g/L,???2?3g/L?60??30?45min???1?30???????FeSO4?7H2O 10g/L,50%???2g/L,??? PH =3?3?5?80??0min?????80??0min?????????35%???10mL/L,NaSiO3.5H2O 3?5g/L,70?80?,45?90min?PH=8?10????



??????????AN4%???2%?30min????????20?30min??????



???????36癗aOH 1%?3%????O 15%?20%??????5%?8%???1?25?30?98?100??20?30min???????????????????????????0?5ml/L???30???10min??????????????????



4????????


???????????????????????????????????????????????????????BASF?ALigen A.



??????????????????20g/L????30g/L??703???????100????????



??????????O 2?4g/L?36癗aOH 12?15mL/L????5?6g/L?70?80??30?60min???1?30?40?



5????????


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



?????????100??PH?4?5??????130??????????



??????????100??PH ?3.5??????????????????????????????????????????????



6?????????


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



???5ml/L?????5g/L???????????1????????????5ml/L?????150g/L?????5g/L???????????PH?4?4?5???????30min?????????3g/L??60???15min??1?1?5g/L????85???20?30min,??????



??????0?5?1g/L??????????PH??4???????1?2??????????????



7???????????


?5?10mi/L 38???1?2ml/L????????3?5g/L??????????0?5?1g/L????????????????????????????????????????????????????????????????????



8??????


???????????????????????????????????18g/L????????20g/L,40?)?????



??


1?????????????????????

2??????????????????

3???????????????????????

4????????????????????????????????????????????????????????????????????????????????????