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改性沸石+生物接触氧化处理氨氮实验研究
Experimental study on treatment of ammonia nitrogen by modified zeolite and biological contact oxidation
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- DOI:
- 作者:
- 贾玉岩1，彭娟2
Jia Yuyan 1, Peng Juan 2
- 作者单位:
- 1. 中国石油新疆油田分公司重油开发公司，新疆克拉玛依834000；2. 中国石油新疆油田分公司采油一厂，新疆克拉玛依834000
1. Heavy oil Development Company, CNPC Xinjiang Oilfield Company, Karamay 834000, China; 2. CNPC Xinjiang Oilfield Company Oil Production Plant No.1, Karamay 834000, China
- 关键词:
- 改性沸石吸附；生物接触；氧化；工艺处理；微污染；氨氮
modified zeolite adsorption; biological contact; oxidation; process treatment; micro-pollution; ammonia nitrogen
- 摘要:
- 摘要：改性沸石吸附与生物接触氧化组合工艺在处理微污染水中氨氮方面，虽然已经取得了
一定的研究成果，但对于组合工艺在不同类型微污染水体中的应用效果缺乏系统的研究。文
中通过实验室规模的吸附和生物接触氧化实验，分析了不同操作条件下的氨氮去除效果，发
现改性沸石可以有效提升氨氮的去除率，其中有机改性沸石表现最优，氨氮去除率高达
98.5%，同时，生物接触氧化工艺中，曝气量和HRT 的增加均能提高氨氮去除率，生物膜的成
熟度也对去除效果有正面影响。
Abstract: Although the combined process of modified zeolite adsorption and biological contact oxidation has achieved certain
research results in the treatment of ammonia nitrogen in micro-polluted water, the application effect of the combined process in
different types of micro-polluted water lacks systematic research. In this paper, the removal effect of ammonia nitrogen under
different operating conditions was analyzed through laboratorial-scale adsorption and biological contact oxidation experiments. It
was found that modified zeolite can effectively improve the removal rate of ammonia nitrogen, among which organic modified zeolite
had the best performance, with the removal rate of ammonia nitrogen up to 98.5%. Meanwhile, in the biological contact oxidation
process, the increase of aeration and HRT can both increase the removal rate of ammonia nitrogen. The maturity of the biofilm also
had a positive effect on the removal effect.