CAJ | 학술논문

以新型TMT（三巯基均三嗪三钠盐）-硫酸铁复配混合物为化学固定剂，考察了其对湖南郴州某重金属污染土壤中铅、镉、砷的固定效果.结果表明，单一使用TMT（含15%（质量分数）TMT的水溶液）为固定剂时，土壤中的有效态铅、镉去除率高于60%，但对砷没有固定效果.使用TMT-硫酸铁复配固定剂时，控制硫酸铁投加量为35.7 g/kg，TMT投加量为0.1 L/kg时，有效态铅、镉去除率达到90%以上.随着土壤含水量的增加，土壤中有效态铅、镉的含量显著降低.当控制硫酸铁投加量为35.7 g/kg，TMT投加量为0.04 L/kg，控制土壤含水量至田间持水量的70%，固定60 d，有效态铅、镉的去除率在80%以上，有效态砷的去除率可达到60%.
이신형TMT（삼구기균삼진삼납염）-류산철복배혼합물위화학고정제，고찰료기대호남침주모중금속오염토양중연、력、신적고정효과.결과표명，단일사용TMT（함15%（질량분수）TMT적수용액）위고정제시，토양중적유효태연、력거제솔고우60%，단대신몰유고정효과.사용TMT-류산철복배고정제시，공제류산철투가량위35.7 g/kg，TMT투가량위0.1 L/kg시，유효태연、력거제솔체도90%이상.수착토양함수량적증가，토양중유효태연、력적함량현저강저.당공제류산철투가량위35.7 g/kg，TMT투가량위0.04 L/kg，공제토양함수량지전간지수량적70%，고정60 d，유효태연、력적거제솔재80%이상，유효태신적거제솔가체도60%.
The stable effect of lead (Pb), cadmium (Cd), arsenic (As) on the heavy metal polluted soils in Chenzhou Hunan with a novel stabilizer of TMT-ferric sulfate are investigated. The results show that the removal rate of the available contents of Pb , Cd in soil is higher than 60 % with the single use of TMT (aqueous solution containing 15 %TMT)as stabilizer, but there is no stable effect on As; the removal rate of the available contents of Pb, Cd in soil is higher than 90 % when TMT-ferric sulfate is used as stabilizer with 35.7 g/kg ferric sulfate and 0.1 L/kg TMT. The available contents of Pb , Cd decreases with the increase of soil water content. The available contents of Pb, Cd decrease more than 80 % and As 60 % with 35.7 g/kg ferric sulfate, 0.04 L/kg TMT and the soil water content is 70%of field capacity lasting 60 days.