CAJ | 학술논문

以天然膨润土为原料，将聚乙烯醇和淀粉按一定比例混入其中，进行成型处理，采用静态吸附法评价成型膨润土对水中Cr(Ⅵ)的去除效果及散失率，当聚乙烯醇质量分数为7%，淀粉用量5%，焙烧温度600℃，焙烧时间1.5 h时，膨润土颗粒投加量1 g/100mL，对1 mg/L水中Cr(Ⅵ)的去除率为62%，散失率为2.7%。进一步对成型膨润土进行有机改性，有机插层剂CTMAB用量为1.3 mmol/g土时，有机膨润土颗粒对水中Cr(Ⅵ)去除率在85%以上，将其应用于电镀含铬废水深度处理，去除率为80.3%。
이천연팽윤토위원료，장취을희순화정분안일정비례혼입기중，진행성형처리，채용정태흡부법평개성형팽윤토대수중Cr(Ⅵ)적거제효과급산실솔，당취을희순질량분수위7%，정분용량5%，배소온도600℃，배소시간1.5 h시，팽윤토과립투가량1 g/100mL，대1 mg/L수중Cr(Ⅵ)적거제솔위62%，산실솔위2.7%。진일보대성형팽윤토진행유궤개성，유궤삽층제CTMAB용량위1.3 mmol/g토시，유궤팽윤토과립대수중Cr(Ⅵ)거제솔재85%이상，장기응용우전도함락폐수심도처리，거제솔위80.3%。
The natural bentonite is moulded by mixing with certain proportion PVA and starch, the loss percentage and the Cr(Ⅵ) removal effect of the bentonite moulding is evaluated by static adsorption method. The1mg/LCr(Ⅵ) removal rate can reach 62%, and the loss percentage is 2.7% under the following conditions: the concentration of PVA is 7%, the dosage of starch is 5%, the roasting temperature is 600℃ and the roasting time is 1.5h, the dosage of bentonite granules is1g/100mL. The further organic modiifcation of bentonite moulding is also studied in this paper. The Cr(Ⅵ) removal rate is over 85% when the dosage of the organic modiifer CTMAB is 1.3mmol/g and the removal rate is 80.3% when applied to the deep treatment of electroplating chromium containing wastewater.