CAJ | 학술논문

铅酸蓄电池企业在生产过程中产生大量的强酸性含铅废水，如不妥善处理将会对环境造成污染．以γ-氨丙基三乙氧基硅烷改性凹土作为吸附剂，将某铅酸蓄电池企业在生产过程中产生的强酸性含铅废水作为实验用水，通过静态实验考察改性凹土对废水中Pb2＋的吸附性能．结果表明，将废水pH值调节为4.02，废水中Pb2＋的去除率可达到99.12％；废水中Pb2＋的去除率随着吸附剂用量和吸附时间的增加而升高；改性凹土吸附废水中的Pb2＋符合拟二级动力学模型．改性凹土吸附剂对铅酸废水治理具有较好的应用前景．
연산축전지기업재생산과정중산생대량적강산성함연폐수，여불타선처리장회대배경조성오염．이γ-안병기삼을양기규완개성요토작위흡부제，장모연산축전지기업재생산과정중산생적강산성함연폐수작위실험용수，통과정태실험고찰개성요토대폐수중Pb2＋적흡부성능．결과표명，장폐수pH치조절위4.02，폐수중Pb2＋적거제솔가체도99.12％；폐수중Pb2＋적거제솔수착흡부제용량화흡부시간적증가이승고；개성요토흡부폐수중적Pb2＋부합의이급동역학모형．개성요토흡부제대연산폐수치리구유교호적응용전경．
Lead-acid wastewater which was produced from lead acid battery manufacturing plant will have a significant impact on the environment.An amine-terminated organosilicon (γ-aminopropyltriethoxysilane) was used to introduce terminal amino groups onto the attapulgite surface as adsorbent.The adsorption behaviors of Pb2+in wastewater were studied.The results show that very high removal rate of 99.12%when pH value was 4.02.The removal rate of Pb2+increases with the increase in adsorbent dosage and contact time.The kinetics of Pb2+adsorption nicely followed the pseudo-second-order kinetic model.The better Pb2+removal rate dem-onstrates that modified attapulgite has better application prospect to deal with the lead-acid wastewater.