CAJ | 학술논문

采用浓硫酸对粉煤灰进行了改性处理，提高了粉煤灰的表面积和吸附特性，研究了改性后的粉煤灰对含磷废水处理时磷的去除效果．结果表明：粉煤灰改性制备的最佳方法是先在5g原始粉煤灰中加3mL水进行混合搅拌，然后加18．4mol·L -1浓硫酸0．4mL，搅拌混匀后在100℃下保温1．5h．利用改性后粉煤灰对含磷60mg·L -1的废水进行处理，当改性粉煤灰投加量为2％，反应p H值为7．0，反应时间5分钟后，磷的去除效率达到98．82％，出水中含磷量为0．70 mg · L -1，达到《污水综合排放标准》（GB 9878-1996）中二级排放标准．
채용농류산대분매회진행료개성처리，제고료분매회적표면적화흡부특성，연구료개성후적분매회대함린폐수처리시린적거제효과．결과표명：분매회개성제비적최가방법시선재5g원시분매회중가3mL수진행혼합교반，연후가18．4mol·L -1농류산0．4mL，교반혼균후재100℃하보온1．5h．이용개성후분매회대함린60mg·L -1적폐수진행처리，당개성분매회투가량위2％，반응p H치위7．0，반응시간5분종후，린적거제효솔체도98．82％，출수중함린량위0．70 mg · L -1，체도《오수종합배방표준》（GB 9878-1996）중이급배방표준．
The effect of phosphorus-contenting wastewater treatment by modified fly ash was studied . The influences of various factors on the reactions were investigated .The experiment results showed that the modified fly ash could been prepared by mixing 5 g original fly ash and 3 mL water ,adding 0 .4 mL concentrated sulphuric acid and stirring ,then reacting at 100 ℃ for 1 .5 hours .Removal rate of phosphorus had improved significantly when wastewater was treated by sulfuric acid modified fly ash . The acid modified fly ash was good at removing phosphorus from wastewater at pH 7 .0 ,by adding 2% of the acid modified fly ash into the solution of 60 mg · L -1 phosphate .After 5 minutes stirring and reacting ,the removal rate of phosphorus was up to 98 .82% .The effluent meets respectively Class 2 and Class 1 of the standard of “Integrated Wastewater Discharge Standard” (GB 9878-1996) .