粉煤灰对水体生化指标的影响  

Influence of the Fly Ash on Water Body Biochemical Indices

作　　者：李久影 康艳红[1] 张馨邈 孙雪[1] 杨雨竹[1] 

机构地区：[1]沈阳师范大学化学与生命科学学院,辽宁沈阳110034

出　　处：《辽宁化工》2014年第10期1213-1217,共5页Liaoning Chemical Industry

基　　金：辽宁省科学技术基金项目;项目编号:201202198;沈阳师范大学大学生科研基金项目

摘　　要：研究了粉煤灰对天然水体生化需氧量（BOD）、化学需氧量（COD）的影响,考察了不同地区的粉煤灰、不同粒级粉煤灰、不同的水样对水的生化作用。结果表明：不同地区的粉煤灰对水体的生化作用不同;不同粒级的粉煤灰对水体的生化作用不同,粒级数越大生化作用越明显,其中100~200目的粉煤灰对水体的生化作用最明显;相同粉煤灰对蒸馏水、自来水、河水的生化作用各不同,其中对河水的生化作用最明显。结合水质污染程度的指标判断粉煤灰对水体的生化指标有一定的影响。Effects of the fly ash on natural water body biochemical oxygen demand（BOD） and chemical oxygen demand（COD） were studied; influences of fly ashes with different sources and grain sizes on biochemical indices of different water bodies were investigated. The results show that： fly ashes from different sources have different biochemical actions on the water body; The bigger the fly ash grain size, the better the biochemical action, fly ash with 100~200 mesh has the best biochemical action; The same fly ash has different biochemical actions on distilled water, tap water and river water; it has the best biochemical action on the river water. So water quality pollution indices should be combined to judge the influence of the fly ash on water body biochemical indices.

关 键 词：粉煤灰 BOD COD 环境效应 

分 类 号：TQ530[化学工程—煤化学工程]