鸡蛋壳对酸性废水中的铅、铜、铬的吸附研究  

Adsorption of egg shell on copper,lead,chromium in acidic wastewater

作　　者：刘涛[1] 

机构地区：[1]哈尔滨商业大学科技处,哈尔滨150076

出　　处：《哈尔滨商业大学学报（自然科学版）》2011年第1期44-46,共3页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省教育厅科学技术研究项目(11541078)

摘　　要：研究了鸡蛋壳对废水中重金属铜、铅、铬去除效能,并初步探讨了鸡蛋壳煅烧温度、用量和pH值对去除效率的影响,并观察其在最佳条件下对金属的去除率.结果表明,用400℃下煅烧2 h,质量浓度为30 g/L的鸡蛋壳(pH值3.0),其除铜率能达到最佳值99.56%;用500℃下煅烧2 h,质量浓度25 g/L的鸡蛋壳(pH值2.0),其除铅率达到最佳值79.25%;用300℃下煅烧2 h,质量浓度20 g/L的鸡蛋壳(pH值2.5),其除铬率最佳值51.99%.用鸡蛋壳处理酸性重金属废水,工艺简单,操作方便,处理效果好,具有一定的应用前景.The removal efficiency of egg shells on the heavy metals from wastewater of copper,lead,chromium were researched,and the influences of the egg shell calcining temperature,dosage and pH value on removal efficiency were discussed preliminarily,its removal rate on the metal was observed under the best conditions.The results showed that the copper removal rate could reach the optimum value 99.56%,on the condition that egg shell were calcined 2 h under 400 ℃,the content of egg shell was 30 g/L,pH value was 3.0.The copper removal rate could reach 79.25%,on the condition that egg shell were calcined 2 h under 500 ℃,the content of egg shell was 25 g/L,pH value was 2.0.The copper removal rate could reach 51.99%,on the condition that egg shell were calcined 2 h under 300 ℃,the content of egg shell was 20 g/L,pH value was 2.5.Using egg shell to handle acidic heavy metal wastewater,the process was simple,easy operation,good effect and has some application prospects.

关 键 词：鸡蛋壳 酸性废水 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]