CAJ | 학술논문

含铅废水仅经过化学沉淀法处理后的出水不够稳定,因此需要后期处理来保证出水稳定并符合国家综合污水排放标准.新型特种粉体材料Special Powder Material(SPM)为我国自主研发的新型粉体材料,对微污染的水源有良好的处理效果,去除重金属的主要机理为电化学反应、吸附等.文章目的在于研究SPM去除铅效果的影响因素;研究SPM处理含铅溶液的浓度范围,考察将SPM的应用范围扩展至含铅废水后期处理的可行性.影响SPM处理效果的因素有进水流向、流量、填料高度、停留时间、含铅溶液浓度等,为了定量研究各个因素对SPM处理效果的贡献大小,文章采用配水试验,考察不同条件下SPM对铅的去除效率并进行正交分析.结果表明.进水方向采用逆流方向优于顺流方向,影响SPM处理铅溶液效率的主要因素为进水流量和进水浓度,SPM对较高浓度含铅溶液有明显的除铅效果,有望用于废水后期处理.进水方向为逆流,流量为12L/h,进水浓度为2mg/L时,出水浓度能长时间保证在1mg/L以下,符合国家综合污水排放标准.
함연폐수부경과화학침정법처리후적출수불구은정,인차수요후기처리래보증출수은정병부합국가종합오수배방표준.신형특충분체재료Special Powder Material(SPM)위아국자주연발적신형분체재료,대미오염적수원유량호적처리효과,거제중금속적주요궤리위전화학반응、흡부등.문장목적재우연구SPM거제연효과적영향인소;연구SPM처리함연용액적농도범위,고찰장SPM적응용범위확전지함연폐수후기처리적가행성.영향SPM처리효과적인소유진수류향、류량、전료고도、정류시간、함연용액농도등,위료정량연구각개인소대SPM처리효과적공헌대소,문장채용배수시험,고찰불동조건하SPM대연적거제효솔병진행정교분석.결과표명.진수방향채용역류방향우우순류방향,영향SPM처리연용액효솔적주요인소위진수류량화진수농도,SPM대교고농도함연용액유명현적제연효과,유망용우폐수후기처리.진수방향위역류,류량위12L/h,진수농도위2mg/L시,출수농도능장시간보증재1mg/L이하,부합국가종합오수배방표준.
Wastewater with high lead concentration was produced in the process of E-waste recycle and disposal. As an independent developed material, special powder material (SPM) shows capacity to remove Pb2+ from micro-polluted water,with mechanism of removing heavy metal as micro-electrolysis and sorption. The influence of operating parameters on Pb2+ removal was studied, and the removal ability of SPM for lead was investigated including the feasibility of using SPM into wastewater treatment. In order to evaluate the contribution of each parameter quantitatively, batch experiments of removing lead from a synthetic wastewater was investigated using different factors such as flow rate, carder height, retention time and initial lead concentration. Results showed that the countercurrent flow was better than concurrent flow. The orthogonal test result indicated the major parameters were flow rate and lead concentration of inlet water. SPM has significant effect on higher lead concentrated wastewater, as shown in the later treatment. Pb2+ concentration of treated water was below 1mg/L, which satisfied integrated water discharge standard, and kept stable at initial concentration around 2mg/L, flow rate 12L/h and countercurrent flow direction.