电极-SBBR处理含铜有机污水  

Treatment of sewage containing copper by electrode-SBBR

作　　者：项红珍[1,2] 陈玉成[1,2] 陈庆华[1,2] 郭玲[3] 刘静 

机构地区：[1]西南大学资源环境学院,重庆400716 [2]重庆市农业资源与环境重点实验室,重庆400716 [3]山西农业大学信息学院,山西030800 [4]四川晨泰工程管理咨询有限公司,成都610041

出　　处：《环境工程学报》2012年第12期4383-4387,共5页Chinese Journal of Environmental Engineering

基　　金：国家"十一五"科技支撑计划项目(2010BAD03B03);重庆市科技攻关重点项目(CSTC;2009AB7027)

摘　　要：采用电极-SBBR系统去除Cu2+,考察了电流强度IA、竞争离子(阴离子SO24-、NO3-、Cl-和阳离子Zn2+、Pb2+)、初始含Cu2+量及溶液pH值对除铜效除果的影响。结果表明,当电流强度为40 mA时Cu2+去除率最高为98%。投加阴(SO24-、NO3-、Cl-)、阳(Zn2+、Pb2+)离子均会引起出水Cu2+浓度的增加,且Cl-和Pb2+含量分别为45 mg/L和30 mg/L时对Cu2+去除的影响更为显著。进水Cu2+浓度为30 mg/L时,Cu2+去除率最高为98.48%,当进水Cu2+≥70 mg/L时,出水Cu2+浓度不能达标。酸性(pH 4.0～4.5)与碱性(pH 9.0～10.0)条件均不利于Cu2+的去除,且酸性条件的负面影响更显著,当pH为4.5～7.5时,Cu2+去除率最高为97.78%。Electrode-SBBR system was used to investigate the effects of various factors on removal of copper ion such as current intensity （IA ）, competing ions （ SO24-, NO3- , CI- and Zn2 ＋ , Pb2 ＋ ）, the initial Cu2 ＋ con- centration and pH. Results showed that the removal rate of Cu2＋ was up to 98% while the In was 40 mA. Howev- anions（SO4 , NO3- , C1- ） and cations（Zn2＋ , Pb2＋ ） both increased the concentration of Cu2＋ in ef- er, adding ＂ 2 - fluent, and significant increases were observed while C1- and Pb2＋ concentration were 45 mg/L and 30 rag/L, respectively. Additionally, with initial concentration of Cu2＋ being 30 mg/L, the highest removal rate of Cu2＋ was 98.48% ; and concentration of Cu2＋ in effluent failed to meet the standard while concentration of Cu2＋ of in- fluent exceeded 70 mg/L. Furthermore, the removal and alkaline （pH 9.0 - 10.0） conditions, while the of oH ran＋inz from 4.5 to 7.5. removal rate of Cu2 ＋ process was undermined both under acid （pH 4.0 ＋ 4.5 ） situation was worse in the former one. Under the condition reached 97.78%.

关 键 词：电极 序批式生物膜反应器 铜 

分 类 号：X703[环境科学与工程—环境工程]