安徽农业科学Issue(6)：3510-3512,3.
农业废弃物为碳源去除硝酸盐氮研究
Study on Removing Nitrate with Agriculture Waste as Carbon Source
摘要
Abstract
[Objective] The study aimed to discuss the effect of removing the nitrate with the agriculture waste as the carbon source. [ Method] With the cotton stalk, corn stalk, corn cob and rice husk as the carbon source, the release of COD and the removal of nitrate were studied by the static and dynamic experiments. [ Result] In the static experiments, the COD release rates of the corn cob and com stalk were higher than the rice husk and cotton stalk; the pH in the rice husk and cotton stalk had little change, that in the cotton stalk and corn stalk was first decreased and then slightly increased, and trended to be stable at highest value. In the dynamic experiments, the nitrate concn. Was gradually increased with the retention time(24, 12, 6 h) becoming shorter, the removal rates of the nitrate in the com stalk and com cob were still more than 70% , while that in the cotton stalk and rice husk was decreased obviously. The COD concn. In the effluent was decreased with the shorter retention time, and both of the COD concn. In the effluent of the com stalk and com cob were more than 100 mg / L. The COD concn. In effluent was high and the carbon source needed by the denitrification was excessive. [ Conclusion] The study provided the reference basis for the development of the new carbon source materials with higher nitrate removal rate.关键词
农业废弃物/碳源/反硝化/硝酸盐氮Key words
Agriculture waste/Carbon source/Denitrification/Nitrate分类
资源环境引用本文复制引用
康爱彬,程艳坤,霍鹏,何晓云,程彦海..农业废弃物为碳源去除硝酸盐氮研究[J].安徽农业科学,2012,(6):3510-3512,3.基金项目
河北省高等学校科学技术研究项目(Z2011301). （Z2011301）
