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Semi-nitritation process producing optimum influent for anammox process in treatment of domestic wastewater

机译：半硝化工艺可为厌氧氨氧化工艺处理生活废水提供最佳的进水

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摘要

The process of anaerobic ammonium oxidation (Anammox) requires a proper ratio of NH4+-N and NO2--N in the influent, which is difficult to control upon treating domestic wastewater. In this study, a control strategy of semi-nitritation (SN) process based on monitoring the pH profile and NH4+-N concentration in a sequencing batch reactor (SBR) was developed. The aeration time of each cycle in SN-SBR was calculated using the established equation t(SN) = t(COD) + 0.56 alpha nS(0)/(S-0 - S-n). To verify the suitability of the control strategy, SN-SBR was operated continuously for 20 cycles, fed with real domestic wastewater with a fluctuating COD of 200-400 mg L-1 and NH4+-N of 65-80 mg L-1. The nitrogen removal performance of SN-anammox system using the developed control strategy was also monitored. Results showed that SN-SBR was able to generate a suitable ratio of NH4+-N to NO2--N for the following anammox process, the TN removal rate of the SN-anammox system achieved 91.7 +/- 0.4% and the average ammonium, nitrite and nitrate concentration of effluent was only 0.50 +/- 0.24, 0.13 +/- 0.09 and 4.9 +/- 0.22 mg L-1, respectively. This study has potential application in the treatment of domestic wastewater using combined SN-anammox process. (C) 2015 Elsevier Ltd. All rights reserved.
机译：厌氧铵氧化（Anammox）过程需要进水中适当比例的NH4 + -N和NO2--N，这在处理生活废水时很难控制。在这项研究中，开发了一种基于监测间歇分批反应器（SBR）中的pH值和NH4 + -N浓度的半硝化（SN）过程的控制策略。使用建立的方程式t（SN）= t（COD）+ 0.56 alpha nS（0）/（S-0-S-n）计算SN-SBR中每个循环的充气时间。为了验证控制策略的适用性，将SN-SBR连续运行20个循环，以实际的生活污水为原料，其COD的波动幅度为200-400 mg L-1，NH4 + -N波动为65-80 mg L-1。还使用开发的控制策略监测了SN-厌氧氨氧化系统的脱氮性能。结果表明，SN-SBR能够在随后的厌氧氨氧化过程中产生合适的NH4 + -N与NO2--N比率，SN-厌氧氨氮系统的TN去除率达到91.7 +/- 0.4％，平均铵废水中亚硝酸盐和硝酸盐的浓度分别仅为0.50 +/- 0.24、0.13 +/- 0.09和4.9 +/- 0.22 mg L-1。该研究在联合SN-厌氧氨氧化工艺处理生活污水中具有潜在的应用价值。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Chemosphere》 |2016年第6期|55-61|共7页
  • 作者

    Tang Xiaoxue; Yang Qing; Li Jianlin; Peng Yongzhen; Xu Zhubing; He Jianzhong;

  • 作者单位

    Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Engn Res Ctr Beijing, Beijing 100124, Peoples R China|China Acad Bldg Res, Beijing 100013, Peoples R China;

    Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Engn Res Ctr Beijing, Beijing 100124, Peoples R China;

    China Acad Bldg Res, Beijing 100013, Peoples R China;

    Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Engn Res Ctr Beijing, Beijing 100124, Peoples R China;

    Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Engn Res Ctr Beijing, Beijing 100124, Peoples R China;

    Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Engn Res Ctr Beijing, Beijing 100124, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Semi-nitritation; Domestic wastewater; Sequencing batch reactor (SBR); Anammox;

    机译：半硝化;生活污水;顺序间歇反应器（SBR）;厌氧氨氧化;

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