沸石微波改性及其处理重金属离子电镀废水试验研究  

Experimental Study on Modified Zeolite by Microwave to Disposal of Plating Wastewater Containing Heavy Metal Contamination

作　　者：孟凡娜[1] 

机构地区：[1]黑龙江科技大学矿业工程学院,黑龙江哈尔滨150027

出　　处：《中国非金属矿工业导刊》2015年第3期11-14,共4页China Non-Metallic Minerals industry

基　　金：黑龙江省普通高等学术矿物加工工程重点实验室开放课题(编号:20131207);国家科技支撑计划(2013BAE04B02)

摘　　要：针对电镀废水对生态环境的严重污染问题,采用微波辐射技术和Na Cl对天然沸石进行活化改性,并用以处理含重金属离子的电镀废水。在静态条件下,分析改性微波辐射功率、辐射时间、反应温度、反应时间、p H值、沸石用量及粒度对重金属离子去除率的影响。结果表明：选取粒度为0.15~0.18mm的沸石,于490W微波功率下辐射6min,制备微波改性沸石。在反应温度为40℃、p H值为6、吸附处理时间为30min、微波改性沸石投加量为8.0g/L时,改性沸石处理电镀废水中的金属离子的效果最好,电镀废水中Cu2＋、Zn2＋、Ni2＋的去除率均达93.6%以上。This paper focus on modifying zeolite used microwave and NaCl to treat the plating wastewater contained heavy metal ions to address the pollution status of environment by plating electroplating wastewater. Under the condition of static state, effects of microwave power, radiation time, reaction temperature, contact time, the p H, particle size, dosage and the other factors were studied and analyzed. The results showed that after the plating wastewater was treated by the modified zeolite particle, the contents of Cu2＋、Zn2＋、Ni2＋ in plating wastewater were markedly lower and the removal rate of heavy metal cations all reached 93.6% when the conditions were microwave power 490 W, radiation time 6 min, reaction temperature 40℃, p H value 6, reaction time 30 min,particle size 0.15~0.18 mm and dosage 8.0g/L.

关 键 词：微波改性 丝光沸石 电镀废水 重金属离子 去除率 

分 类 号：TD97[矿业工程—选矿] X703[环境科学与工程—环境工程]