生物质固定化硫酸盐还原菌处理废水中重金属离子  

Treatment of Heavy Metal Ions in Wastewater with Biomass-immobilized Sulfate Reducing Bacteria

作　　者：于彩虹[1] 李春燕[1] 刘娟[1] 张万众 吴东奎[1] 丁燕燕[1] 朱晓晶[1] 董聿森 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《过程工程学报》2015年第4期659-664,共6页The Chinese Journal of Process Engineering

基　　金：国家高技术研究发展计划(863)基金资助项目(编号:2007AA10Z404);教育部高校青年业务基金资助项目(编号:2013QH11)

摘　　要：采用海藻酸钠和3种生物质载体(稻壳、玉米芯、秸秆)固定化的硫酸盐还原菌(SRB)处理单一重金属(700 mg/L Fe2+,75 mg/L Cu2+,120 mg/L Pb2+,80 mg/L Cd2+)废水,筛选出稻壳为效果较优的固定化载体,并对合成重金属废水(含400 mg/L Fe2+,30 mg/L Cu2+,50 mg/L Pb2+,40 mg/L Cd2+)的处理效果作了进一步研究.结果表明,稻壳固定化SRB去除单一重金属时,Fe2+,Cu2+,Pb2+,Cd2+去除率分别为99%,100%,100%,100%;处理合成重金属废水时,4种重金属去除率分别为98.06%,100%,99.35%,100%.In order to improve the treatment efficiency of heavy metal wastewater, SRB immobilized on sodium alginate and three kinds of biomass-immobilization carriers （rice chaff, corn cob, straw） was used to treat single heavy metal （700 mg/L Fe^2＋, 75 mg/L Cu^2＋, 120 mg/L Pb^2＋, 80 mg/L Cd^2＋） wastewater, rice chaff was screened as the best immobilization carrier. In addition, the treatment effect of simulated heavy metal wastewater （containing 400 mg/L Fe^2＋, 30 mg/L Cu^2＋, 50 mg/L Pb^2＋, 40 mg/L Cd^2＋） was further studied. The results showed that the removal rates of heavy metals were 99%, 100%, 100%, 100%, respectively, as removing single heavy metal by SRB immobilized on rice chaff. The removal rates of Fe^2＋, Cu^2＋, Pb^2＋ and Cd^2＋ in simulated heavy metal wastewater were 98-06%, 100%, 99.35% and 100%, respectively.

关 键 词：生物质 固定化载体 硫酸盐还原菌 重金属 废水处理 

分 类 号：X712[环境科学与工程—环境工程]