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微波改性沸石后处理垃圾渗滤液中氨氮的实验研究
引用本文:商平,刘涛利,孔祥军.微波改性沸石后处理垃圾渗滤液中氨氮的实验研究[J].非金属矿,2010,33(2).
作者姓名:商平  刘涛利  孔祥军
作者单位:天津科技大学海洋科学与工程学院,天津,300222
基金项目:天津市科技支撑计划重点项目 
摘    要:采用微波技术和NaCl对天然沸石进行活化改性,研究了改性沸石对预处理后的垃圾渗滤液中氨氮的去除效果,结果表明:沸石最佳的改性条件是微波功率60%,微波改性时间5min,NaCl溶液浓度8%,沸石粒径100目;在100mL水样的氨氮含量为32mg/L的前提下,实验对垃圾渗滤液中氨氮去除在水样pH值为6,改性沸石投加量为7g,吸附时间为20min时效果最佳,氨氮去除率可达92.11%。

关 键 词:微波  改性沸石  垃圾渗滤液  氨氮

Research on Treatment of Amonia-Nitrogen of Landfill Leachate by Microwave Modified Zeolite
Shang Ping,Liu Taoli,Kong Xiangjun.Research on Treatment of Amonia-Nitrogen of Landfill Leachate by Microwave Modified Zeolite[J].Non-metallic Mines,2010,33(2).
Authors:Shang Ping  Liu Taoli  Kong Xiangjun
Abstract:Zeolite was modified by NaCl and microwave. NH_4~+-N of landfill leachate was treated by modified zeolite. The results showed that the best modified conditions were microwave frequency is 60%, the modified time of microwave is 5min, the concentration of NaC1 solution is 8%,the size of zeolite is 100 mesh. The best treatment conditions were pH value of landfill leachate is 6, the dosage of modified zeolite is 7g, treatment time is 20rain, the NH_4~+-N removal is 92.11%, while the volume of the landfill leachate sample is 100mL and its NH_4~+-N concentration is 32mg/L.
Keywords:microwave  modified zeolite  landfill leachate  NH_4~+-N
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