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%。
Zeolite was modified by NaCl and microwave. NH4^＋-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 NaCl 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 20min, the NH4^＋-N removal is 92.11%, while the volume of the landfill leachate sample is 100mL and its NH4^＋-N concentration is 32mg/L.
出处
《非金属矿》
CAS
CSCD
北大核心
2010年第2期63-65,69,共4页
Non-Metallic Mines
基金
天津市科技支撑计划重点项目(08ZCKFSH01600)
关键词
微波
改性沸石
垃圾渗滤液
氨氮
microwave modified zeolite landfill leachate NH4^＋-N
