拉萨市垃圾填埋场渗沥液水质分析与评价

环境卫生工程 ›› 2019, Vol. 27 ›› Issue (6): 72-75.

拉萨市垃圾填埋场渗沥液水质分析与评价

穷达卓玛1，周文武1，周　鹏1，汪　晶1，次　多1，旦　增1， 2

1.西藏大学；2.天津大学

出版日期:2019-12-26 发布日期:2020-01-03

Analysis and Assessment on Water Quality of Leachate in Lhasa Landfill

Qiong Dazhuoma1， Zhou Wenwu1， Zhou Peng1， Wang Jing1， Ci Duo1， Dan Zeng1，2

1. Tibet University； 2. Tianjin University

Online:2019-12-26 Published:2020-01-03

摘要/Abstract

摘要： 以西藏拉萨市垃圾填埋场渗沥液为研究对象，分别在不同季节对该场垃圾渗沥液原液和经过渗沥液处理站处理后的渗沥液水样的pH、CODCr、BOD5、NH3-N、色度、悬浮物、As、Cr6+、TN、TP、粪大肠杆菌群数等指标进行了分析与评价。结果表明：拉萨市垃圾填埋场渗沥液中CODCr、BOD5、NH3-N、Cr6+、As、TP和TN的平均浓度分别达到2.01×104、4.24×103、726.09、0.28、0.11、16.92、730.33 mg/L，而且季节的变化对拉萨市垃圾填埋场渗沥液水质中CODCr、BOD5、NH3-N、TN的浓度变化影响较大；CODCr、BOD5浓度低于我国初期垃圾填埋场渗沥液水质的平均浓度，高于我国老龄垃圾填埋场渗沥液水质的平均浓度；经过渗沥液处理站处理后排放口水质各污染物浓度能达到GB 16889—2008生活垃圾填埋场污染控制标准中规定的生活垃圾填埋场水污染排放浓度限值，总体出水水质能够满足城市绿化用水水质标准。

Abstract: Taking the leachate in Lhasa landfill as the research object， the indexes of pH、CODCr、BOD5、NH3-N、chroma、SS、As、Cr6+、TN、TP、fecal coliform group number of leachate samples before and after treated by leachate treatment station in different seasons were analyzed and evaluated， respectively. The results showed that the average concentrations of CODCr、BOD5、NH3-N、Cr6+、As、TP and TN in the leachate from Lhasa landfill reached 2.01×104、4.24×103、726.09 、0.28、0.11、16.92、730.33 mg/L， respectively. Moreover， the changes of seasons had a great influence on the concentration of CODCr、BOD5、NH3-N and TN in the leachate. The concentration of CODCr and BOD5 was lower than the average concentration of leachate water quality in China’s early landfill， but higher than that of leachate water quality in China’s old landfill. After treated by leachate treatment station， the concentration of each pollutant in the water from discharge port could reach the limit of water pollution concentration of domestic waste landfill in Standard for Pollution Control on the Landfill Site of Municipal Solid Waste（GB 16889—2008）， and the overall effluent quality could meet the water quality standards for urban greening.

穷达卓玛, 周文武, 周　鹏, 汪　晶, 次　多, 旦　增, . 拉萨市垃圾填埋场渗沥液水质分析与评价[J]. 环境卫生工程, 2019, 27(6): 72-75.

Qiong Dazhuoma, Zhou Wenwu, Zhou Peng, Wang Jing, Ci Duo, Dan Zeng, . Analysis and Assessment on Water Quality of Leachate in Lhasa Landfill[J]. Environmental Sanitation Engineering, 2019, 27(6): 72-75.

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