CIESC Journal ›› 2015, Vol. 66 ›› Issue (2): 779-784.DOI: 10.11949/j.issn.0438-1157.20141091

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Simultaneous biological removal of nitrate, sulfide and ammonia from wastewater and its mechanism

LIU Chunshuang1, LI Jiaguo1, YAN Laihong1, ZHAO Dongfeng1, MA Bin2, LI Xiang3, WANG Aijie4   

  1. 1 School of Chemical Engineering, China University of Petroleum, Qingdao 266580, Shandong, China;
    2 Key Laboratory of Beijing Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;
    3 School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, Jiangsu, China;
    4 State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
  • Received:2014-07-21 Revised:2014-09-16 Online:2015-02-05 Published:2015-02-05
  • Supported by:

    supported by the National Natural Science Foundation of China (21307160), the Natural Science Foundation of Shandong Province (ZR2013EEQ030), and the Fundamental Research Funds for the Central Universities (R1404005A).

废水中硫化物、硝酸盐和氨氮生物同步去除及其机理

刘春爽1, 李甲国1, 闫来洪1, 赵东风1, 马斌2, 李祥3, 王爱杰4   

  1. 1 中国石油大学(华东)化学工程学院, 山东 青岛 266580;
    2 北京工业大学北京市水质科学与水环境恢复工程重点实验室, 北京 100124;
    3 苏州科技学院环境科学与工程学院, 江苏 苏州 215011;
    4 哈尔滨工业大学城市水资源与水环境国家重点实验室, 黑龙江 哈尔滨 150090
  • 通讯作者: 刘春爽
  • 基金资助:

    国家自然科学基金项目(21307160);山东省自然科学基金项目(ZR2013EEQ030);中央高校基本科研业务费专项资金(R1404005A)。

Abstract:

Simultaneous removal of nitrate, sulfide and ammonia could be realized at HRT of 12 h, temperature of 30℃±2℃ and influent pH of 7.5. The removal rates were up to 95%, 90% and 99% for ammonia, nitrate and sulfide at influence concentrations of 22—35 mg N·L-1, 22—35 mg N·L-1 and 50—90 mg S·L-1, respectively. Most of sulfide removed was converted to elemental sulfur (S0) and the conversion rate was as high as 89%. Batch experiment results indicated that presence of sulfide could enhance simultaneous removal of nitrate and ammonia. The results of this study provided an innovative idea for the development of sulfide- and nitrogenous contaminants- laden wastewater treatment technology.

Key words: waste water, sulfide, environment, anaerobic, ANAMMOX, sulfide, nitrate and ammonia removal, elemental sulfur

摘要:

在HRT为12 h,温度为30℃±2℃,进水pH为7.5,进水硫化物、硝酸盐氮和氨氮浓度分别为50~90 mg S·L-1,22~35 mg N·L-1和22~35 mg N·L-1条件下,能够实现氨氮、硝酸盐氮和硫化物3类污染物的同步去除,去除率分别达到97.3%、92.8% 和99%以上,而且去除的硫化物主要以单质硫形式存在,单质硫理论转化率达89%以上。间歇实验结果表明,S2-的存在能够促进NO3--N、NH4+-N的同步去除。研究结果为含硫含氮废水的生物处理技术的发展提供了新思路。

关键词: 废水, 硫化物, 环境, 厌氧, 厌氧氨氧化, 硫氮同步脱除, 单质硫

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