准好氧填埋渗滤液中含氮污染物空间变化规律  

VARIATION CHARACTERISTICS OF NH_4^+-N AND TN IN LEACHATE FROM QUASI-AEROBIC LANDFILL

作　　者：王晓龙[1] 呼世斌[1] 黄启飞[2] 庞香蕊[3] 丁世存[4] 金典[4] 

机构地区：[1]西北农林科技大学,陕西西安712100 [2]中国环境科学研究院,北京100012 [3]哈尔滨工业大学,黑龙江哈尔滨150001 [4]北京科技大学,北京100020

出　　处：《环境工程》2008年第2期89-90,49,共3页Environmental Engineering

基　　金：国家自然科学基金项目(50508042)

摘　　要：就不同层次准好氧填埋渗滤液的氨氮和总氮浓度的动态变化规律进行研究,结果表明:在3个层次的渗滤液中,氨氮和总氮浓度均呈现稳定下降的规律。在试验58周时,上、中和下层渗滤液中氨氮的浓度分别降至45.6、329和820mg/L,下降率分别为86.5%、81.7%和72.8%;在3个层次的渗滤液中,上、中和下层总氮浓度,分别由开始的2207、3511和5751mg/L降至313、240和1228mg/L,呈稳定下降的规律,可以看出,准好氧填埋结构对氨氮和总氮去除有较好的效果。The variation law of NH_4^+-N and TN in different layers leachates was studied.The results showed that,the NH+_4-N concentrations in leachates of three landfilling layers of quasi-aerobic installation declined rapidly and reduced to 45.6,329 and 820 mg/L,and the decreasing rates were 86.5%,81.7% and 72.8% respectively.TN concentrations in leachate of three layers were decreased to 313,240 and 1 228 mg/L respectively from 2 207,3 511 and 5 751 mg/L.According to the test results,the quasi-aerobic landfill had better removal rate of NH_4^+-N and TN.

关 键 词：准好氧填埋场 垃圾渗滤液 含氮污染物 

分 类 号：X703[环境科学与工程—环境工程]