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吹脱法去除深度脱水污泥水中的氨氮

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周振, 胡大龙, 顾雨婷, 乔卫敏, 杜兴治, 李震, 蒋玲燕, 魏海娟, 吕燕. 吹脱法去除深度脱水污泥水中的氨氮[J]. 环境工程学报, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
引用本文: 周振, 胡大龙, 顾雨婷, 乔卫敏, 杜兴治, 李震, 蒋玲燕, 魏海娟, 吕燕. 吹脱法去除深度脱水污泥水中的氨氮[J]. 环境工程学报, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
shu
Zhou Zhen, Hu Dalong, Gu Yuting, Qiao Weimin, Du Xingzhi, Li Zhen, Jiang Lingyan, Wei Haijuan, Lü Yan. Ammonia removal by air stripping for reject water from advanced sludge dewatering process[J]. Chinese Journal of Environmental Engineering, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
Citation: Zhou Zhen, Hu Dalong, Gu Yuting, Qiao Weimin, Du Xingzhi, Li Zhen, Jiang Lingyan, Wei Haijuan, Lü Yan. Ammonia removal by air stripping for reject water from advanced sludge dewatering process[J]. Chinese Journal of Environmental Engineering, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
shu

吹脱法去除深度脱水污泥水中的氨氮

  • 1.

    上海电力学院环境与化学工程学院, 上海 200090

  • 2.

    上海城投污水处理有限公司, 上海 201203

  • 基金项目:

    国家高技术研究发展计划(863)项目(2012AA063403)

    上海市科委能力建设计划项目(12250500900)

  • 中图分类号: X703

Ammonia removal by air stripping for reject water from advanced sludge dewatering process

  • 1.

    College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China

  • 2.

    Shanghai Chentou Wastewater Treatment Co. Ltd., Shanghai 201203, China

  • Fund Project:

  • 摘要: 针对污水处理厂剩余污泥深度脱水污泥水高氨氮、高pH、高碱度的特点,考察了气水比、水温和吹脱时间对其氨氮吹脱效果的影响,分析了吹脱过程中污泥水pH下降和结垢问题。深度脱水污泥水高pH和高碱度的环境有利于氨氮吹脱的顺利进行,而提高气水比和温度均能改善吹脱效率。氨氮吹脱会造成污泥水pH下降,这有助于其后续处理。污泥水吹脱过程中还出现了Ca2+浓度下降和固体物质析出的现象,能谱分析结果显示析出物主要成分为CaCO3。
    Abstract: Reject water from advanced sludge dewatering process was characterized by high concentrations of ammonia nitrogen, high pH and high alkalinity. The effects of air-liquid ratio, temperature and stripping time on the removal of ammonia nitrogen from the reject water were investigated, and the phenomena of pH decrease and scaling during the stripping process were analyzed. High pH and high alkalinity of the reject water were conducive to the progress of stripping, while the increase of air-liquid ratio and temperature could both improve the stripping efficiency. Ammonia air stripping also results in the simultaneous decrease of pH and Ca2+ concentration. The decrease of pH was in favor of subsequent biological treatment of the reject water, while the latter decrease caused the precipitation of CaCO3 in the stripping equipment.
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  • 收稿日期:  2014-03-01
  • 刊出日期:  2015-03-05
周振, 胡大龙, 顾雨婷, 乔卫敏, 杜兴治, 李震, 蒋玲燕, 魏海娟, 吕燕. 吹脱法去除深度脱水污泥水中的氨氮[J]. 环境工程学报, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
引用本文: 周振, 胡大龙, 顾雨婷, 乔卫敏, 杜兴治, 李震, 蒋玲燕, 魏海娟, 吕燕. 吹脱法去除深度脱水污泥水中的氨氮[J]. 环境工程学报, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
shu
Zhou Zhen, Hu Dalong, Gu Yuting, Qiao Weimin, Du Xingzhi, Li Zhen, Jiang Lingyan, Wei Haijuan, Lü Yan. Ammonia removal by air stripping for reject water from advanced sludge dewatering process[J]. Chinese Journal of Environmental Engineering, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
Citation: Zhou Zhen, Hu Dalong, Gu Yuting, Qiao Weimin, Du Xingzhi, Li Zhen, Jiang Lingyan, Wei Haijuan, Lü Yan. Ammonia removal by air stripping for reject water from advanced sludge dewatering process[J]. Chinese Journal of Environmental Engineering, 2015, 9(3): 1093-1097. doi: 10.12030/j.cjee.20150317
shu

吹脱法去除深度脱水污泥水中的氨氮

  • 1. 上海电力学院环境与化学工程学院, 上海 200090
  • 2. 上海城投污水处理有限公司, 上海 201203
  • 收稿日期:  2014-03-01
基金项目:

国家高技术研究发展计划(863)项目(2012AA063403)

上海市科委能力建设计划项目(12250500900)

摘要: 针对污水处理厂剩余污泥深度脱水污泥水高氨氮、高pH、高碱度的特点,考察了气水比、水温和吹脱时间对其氨氮吹脱效果的影响,分析了吹脱过程中污泥水pH下降和结垢问题。深度脱水污泥水高pH和高碱度的环境有利于氨氮吹脱的顺利进行,而提高气水比和温度均能改善吹脱效率。氨氮吹脱会造成污泥水pH下降,这有助于其后续处理。污泥水吹脱过程中还出现了Ca2+浓度下降和固体物质析出的现象,能谱分析结果显示析出物主要成分为CaCO3。

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