Enhanced heterotrophic denitrification for the treatment of nitrate contaminated groundwater by wheat straw
The method of the heterotrophic denitrification remediation of nitrate-polluted groundwater involves the study of organic carbon sources as electron donor. The aim of the present study was to evaluate wheat straw for its ability to enhance denitrification in column experiments. The inlet concentration was 50.0 mg NO3‐-N/L and the column operated at the flow rate of 2.0 ml/min. The result showed that in the presence of wheat straw, highly reducing conditions were generated and complete removal of nitrate (>95％) was achieved, with less accumulation of nitrite. In addition, wheat straw is commonly available agricultural byproduct. Consequently, wheat straw is an attractive carbon source for groundwater heterotrophic denitrification.
groundwater nitrate heterotrophic denitriflcation wheat straw
Jianmei Zhang Chuanping Feng Siqi Hong Huiling Hao
Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education Departme School of water resources and environment, China university of Geosciences, Beijing, China
国际会议
三峡
英文
146-148
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）