浓缩液回灌出水电导率与离子浓度的灰色关联度研究  

Research on grey correlation between conductivity and ion concentration of concentrate recirculation effluent

作　　者：王东梅[1] 刘丹[1] 刘庆梅[1] 陶丽霞[1] 

机构地区：[1]西南交通大学地球科学与环境工程学院,成都610031

出　　处：《环境工程学报》2014年第4期1429-1433,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51209178);中央高校基本科研业务费专项资金资助-青年教师百人计划项目(SWJ-TU09BR171)

摘　　要：研究渗滤液浓缩液回灌出水电导率与离子浓度的关系对完善渗滤液浓缩液回灌体系具有重要的意义。采用成都某垃圾填埋场的渗滤液浓缩液,在实验室矿化垃圾填埋柱中开展了回灌实验,分别得到了回灌出水中电导率和8种离子浓度的变化规律。基于灰色关联模型,对电导率与离子浓度的灰色关联度进行了分析,结果表明,电导率与K+的关联系数最大,其次是NO-3、Na+和Cl-。因此在回灌出水中这4种离子与电导率的关联性较大、可将其作为回灌体系中优先控制的离子。Research on the relationship between the conductivity and ion concentration of the concentrate recirculation effluent is of great importance to improve the leachate concentrate recirculation system. The recircu- lation experiment was carried out in the mineralized refuse landfill column with the leachate concentrate from one refuse landfill in Chengdu. The variations of the conductivity of the concentrate recirculation effluent with eight kinds of ion concentration were obtained. The correlation between the conductivity and ion concentration was ana- lyzed based on the grey correlation model. The result showed that the correlation coefficient between conductivity and potassium ion was the largest,which was followed by nitrateion, sodion and chloridion ions. Therefore, these four ions should be treated as priority controlled ions in the recirculation system.

关 键 词：灰色关联度 渗滤液浓缩液 电导率离子浓度 

分 类 号：X703[环境科学与工程—环境工程]