河北平原地下水NO3^-污染的原位微生态修复

基金项目: 国家高技术应用部门发展项目《污染土体和地下水的原位微生态修复技术研究》的阶段性成果.

In-situ microecological remediation of nitrate-contaminated groundwater in the Hebei plain, China

Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Zhengding 050803, Hebei, China

摘要: 以地下水NO3^-污染为例,利用优选的菌群刺剂和少量营养碳源,在河北平原进行了NO3^-污染地下水的原位微生态修复试验.试验结果显示,地下水NO3^-含量在58～72.66mg/L时,经4.5～10天的修复试验,地下水中NO3^-含量降低至7.38～0.85mg/L,去除率达到86.5%～98.8%,去除效果较好,持续时间长.该方法为修复治理大面积地下水NO3^--N污染提供了可行的技术支撑.
- 地下水 /
- 硝态氮污染 /
- 微生态 /
- 原位修复 /
- 河北平原
Abstract: Take NO3^--N pollution of groundwater for example, the authors used a selected microbial pool agent and a little nutrient carbon to perform an experiment for in situ microecological remediation of NO3^--N-contaminated groundwater in the Hebei plain. The results indicate that the NO3^- concentration in groundwater decreases from 58-72.66 mg/L to 7.38-0.85 mg/L through 4.5-10 days of remediation experiment with the removal rate reaching 86.5-98.8%. The removal effect is good and lasted long. The technique provides a feasible technical support for the remediation and control of extensive NO3^--N pollution of groundwater.
- groundwater /
- nitrate contamination /
- microecology /
- in-situ remediation /
- Hebei plain