固定化小球藻与活性污泥的共生系统处理含锌废水  

Treatment of zinc-containing wastewater by immobilized Chlorella-activated sludge symbiotic system

作　　者：王亚飞[1,2] 傅海燕[2] 黄国和[1,2] 柴天[2] 高攀峰[2] 许鹏成 王进羽 

机构地区：[1]华北电力大学资源与环境研究院区域能源环境系统优化教育部重点实验室,北京102206 [2]厦门理工学院环境科学与工程学院,厦门361024 [3]国电南自新能源科技有限公司,南京210032

出　　处：《环境工程学报》2014年第4期1379-1384,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51109181);福建省教育厅科技项目(JA11236);福建省高校杰出青年科研人才培育计划(JA12243)

摘　　要：研究固定化小球藻与活性污泥的共生系统对含锌废水中Zn2+的去除效果,分析菌藻状态、初始Zn2+浓度、pH、固定化菌藻小球投加量和菌藻体积比等5个因素对固定化菌藻共生系统去除Zn2+的影响。结果表明,固定化活性污泥、固定化小球藻和固定化菌藻对Zn2+的去除效果均优于悬浮小球藻,其中固定化菌藻对Zn2+的去除效果最好;废水中初始Zn2+浓度小于100 mg/L时,固定化菌藻系统对废水中Zn2+的去除率达到90.5%;固定化菌藻系统去除废水中Zn2+的最佳条件是:初始Zn2+浓度为80 mg/L,pH=7,固定化小球投加量为80 mL,菌藻体积比为1∶2。The removal efficiency of zinc ions from wastewater was researched using an immobilized chlo- rella-activated sludge symbiotic system as the adsorbent. The effects of various factors were analyzed,including the status of bacteria and algae,initial wastewater zinc concentrations,pH values,adding quantity of immobilized bacteria-algae balls and the volume ratio of bacteria and algae. The results showed that, Zn2 ＋ removal effieiencies of the immobilized activated sludge system,immobilized chlorella system and the immobilized chlorella-activated sludge system were better than the suspended chlorella system,with the immobilized chlorella-sludge system being the highest; the removal rate of Zn2＋ by the immobilized chloreUa-activated sludge system reached 90.5% when the initial Zn2＋ concentration was less than 100 mg/L; the optimal conditions for Zn2＋ removal by the immobi- lized chlorella-activated sludge system are initial zinc concentration of 80 mg/L, pH value of 7,adding quantity of 80 mL, and volume ratio for bacteria and algae of 1 ： 2.

关 键 词：含锌废水 固定化菌藻 小球藻 活性污泥 

分 类 号：X703[环境科学与工程—环境工程]