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| Release mechanism and treatment technology of arsenic pollution in groundwater |
| Song Lina1, Liu Cuimian1, Lu Na1, Ren Huien1, Chen Ling2, Zhao Danchen1, Ma Xiongfei3 |
| 1. Shijiazhuang Environment Supervision Center, Shijiazhuang 050022, China; 2. Hebei Zhengrun Environmental
Technology Corporation Ltd., Shijiazhuang 050000, China; 3. Hehei Institute of Geological Surveying and Mapping,
Langfang 065000, China; |
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Abstract In order to explore effective treatment measures for different groundwater pollution problems with high arsenic content, the present situation of arsenic pollution in groundwater in China was introduced, the releasing mechanism of arsenic in groundwater was elucidated, and the common treatment technology for treating high arsenic in groundwater was reviewed. The characteristics of each treatment process mentioned above were concluded and summarized in detail. The study showed that coagulation sedimentation method and adsorption method are widely used because of their simple process and low cost. Ion exchange method and membrane separation method have high removal rate, but they were rarely used because of high operation cost and complex process. The biological treatment has a good application prospect in the field of arsenic groundwater remediation due to its simple process, low cost and no secondary pollution. The biological treatment needs to be further studied and may be developed into an effective method to treat groundwater arsenic pollution in the future.
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