西藏班戈县垃圾填埋场环境影响综合分析与评价

旦增; 孟德安; 周文武; 汪晶; 周鹏; 穷达卓玛; 车悦驰; 韩智勇

doi:10.12153/j.issn.1674-991X.20200062

西藏班戈县垃圾填埋场环境影响综合分析与评价

doi: 10.12153/j.issn.1674-991X.20200062

旦增^1,2,,
孟德安¹,
周文武¹,
汪晶¹,
周鹏¹,
穷达卓玛¹,
车悦驰¹,
韩智勇^3,*, ,

1.
西藏大学理学院
2.
天津大学环境科学与工程学院

详细信息

作者简介:
旦增(1981—),男,副教授,研究方向为固体废物处理与资源化及污染控制,yongzhong2008@163.com

通讯作者:
韩智勇 E-mail: hanzhiyong13@cdut.cn

中图分类号: X703
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出版历程
- 收稿日期: 2020-03-25
- 刊出日期: 2021-01-20

Comprehensive analysis and evaluation of environmental impact of sanitary landfill in Baingoin County, Tibet

1.
College of Science, Tibet University
2.
School of Environmental Science and Engineering, Tianjin University3.College of Environment and Civil Engineering, Chengdu University of Technology

More Information

Corresponding author: HAN Zhiyong E-mail: hanzhiyong13@cdut.cn

摘要

摘要: 西藏自治区生活垃圾主要处理方式是卫生填埋,填埋场可能会对周围土壤、水体和空气等环境造成危害和污染。对西藏班戈县垃圾填埋场场区土壤、地下水与空气进行了采样和分析,采用单因子污染指数、地积累指数和潜在生态危害指数等方法,评价该垃圾填埋场对周围环境的影响。结果表明:班戈县垃圾填埋场对周围空气和地下水的影响很小,检测的空气中4项指标均低于GB 14554—93《恶臭污染物排放标准》二级标准值;地下水中重金属浓度很低,评价结果属于安全范围;土壤中重金属浓度均低于GB 15618—2018《土壤环境质量标准农用地土壤污染风险管控标准(试行)》的风险筛选值(pH>7.5)。以西藏土壤元素背景值为评价标准,评价结果显示,填埋场周边土壤受到不同程度的污染,其中Hg的污染程度最高,内梅罗指数为2.9~3.5,属于中污染,Hg的潜在生态危害指数为155~175,达到较重~重的污染等级,填埋场周边土壤整体处于中等潜在生态危害等级。
- 西藏班戈县 /
- 垃圾填埋场 /
- 环境影响 /
- 综合评价
Abstract: The main treatment method of household garbage in Tibet autonomous region is sanitary landfill. Landfills may cause harm and pollution to the surrounding soil, water, air and other environmental elements. The soil, groundwater and air of the landfill site in Baingoin County, Tibet Autonomous Region were sampled and analyzed. The single factor pollution index, land accumulation index and potential ecological hazard index were used to evaluate the impact of the landfill on the surrounding environment. The results showed that the impact of the Baingoin County Landfill site on the surrounding air and groundwater was very small, and the four indexes detected by the air were all lower than the second-level standard value of Emission Standards for Odor Pollutants (GB 14554-93). The heavy metal concentration in groundwater was very low and the evaluation result was safe. The concentrations of heavy metals in the soil were all lower than the risk screening values of Soil Environmental Quality-Risk Control Standard for Soil Contamination of Agricultural Land (Trial) (GB 15618-2018) (pH>7.5). But with Tibetan soil element background values as evaluation criteria, evaluation results showed that the landfill surrounding soil had been polluted by different degrees. Hg had the highest pollution level, and Nemerow index was 2.9-3.5, which belonged to moderate pollution. The potential ecological harm index of Hg was 155-175, reaching the relatively heavy-heavy pollution level. On the whole, the soil around the landfill was in the level of medium potential ecological harm.
- Baingoin County of Tibet /
- waste landfill /
- environmental impact /
- comprehensive assessment

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