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首页> 外文期刊>Environmental engineering and management journal >SIMULTANEOUS TREATMENT OF SULFATE WASTEWATER AND DOMESTIC SEWAGE WITH MICRO-AERATION
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SIMULTANEOUS TREATMENT OF SULFATE WASTEWATER AND DOMESTIC SEWAGE WITH MICRO-AERATION

机译：微曝气同时处理硫酸盐废水和生活污水

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摘要

High sulfide inhibited the activities of sulfate-reducing bacteria (SRB) and methane-producing bacteria (MPB). In addition, a large number of domestic sewages should be treated in China. Thus, it is the first time that domestic sewage was collected to dilute high-sulfate wastewater in this study to achieve simultaneous treatment of sulfate wastewater and domestic sewage in the anaerobic baffled reactor (ABR). The results showed that there were obvious separation of sulfate reduction phase and methane production phase in the ABR, and large sulfate were reduced in the front compartments. Micro-aeration (oxygen demand of 0.4-0.6 mg/L) could significantly decrease sulfide concentration from 45 mg/L to 5 mg/L. Furthermore, micro-aeration between sulfate-reducing and methane-producing phases could significantly promote the synergistic removal of organics by SRB and MPB, while COD removal efficiency increased from 80% to 95%, and sulfate removal efficiency increased from 80% to 90%. And the highest elemental sulfur recovery rate was 0.27 kg/(m~3·d). Finally, the ABR that operated with C/S of 2, HRT of 12 h and COD load of 4 kg/ (m~3·d), micro-aeration (DO of 0.4-0.6 mg/L) at the end of sulfate reduction phase (the compartment 5) has proved to be efficient in simultaneous sulfate wastewater and domestic sewage treatment and is suitable for elemental sulfur recovery.
机译：高硫化物抑制硫酸盐还原细菌（SRB）和产甲烷细菌（MPB）的活性。此外，中国应处理大量生活污水。因此，这是本研究中首次收集生活污水以稀释高硫酸盐废水，以实现在厌氧折流板反应器中同时处理硫酸盐废水和生活污水。结果表明，ABR中硫酸盐还原相和甲烷生成相之间有明显的分离，前室中的大量硫酸盐被还原。微曝气（需氧量为0.4-0.6 mg / L）可将硫化物浓度从45 mg / L显着降低至5 mg / L。此外，硫酸盐还原相和甲烷生成相之间的微曝气可以显着促进SRB和MPB协同去除有机物，而COD去除效率从80％提高到95％，硫酸盐去除效率从80％增加到90％。 。元素硫的最高回收率为0.27 kg /（m〜3·d）。最后，ABR的C / S为2，HRT为12 h，COD负荷为4 kg /（m〜3·d），在硫酸盐末微通气（DO为0.4-0.6 mg / L）。还原阶段（隔室5）已被证明在同时处理硫酸盐废水和生活污水方面非常有效，并且适用于元素硫的回收。

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  • 来源
    《Environmental engineering and management journal》 |2018年第11期|2561-2568|共8页
  • 作者

    Peng Wu; Kuanfeng Li; Lezhong Xu; Qi Peng; Zhenxing Huang; Jiachao Zhang; Yaoliang Shen;

  • 作者单位

    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;

    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;

    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;

    School of Life Sciences, Shaoxing University, Shaoxing 312000, China;

    Schoo! of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China;

    College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China;

    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China ,Key Lab of Environmental Science and Engineering of Jiangsu Province, Suzhou University of Science and Technology, Suzhou 215009, China ,Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China;

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  • 正文语种 eng
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  • 关键词

    anaerobic baffled reactor; dissolved oxygen; sulfate-reducing bacteria; methane-producing bacteria; synergy;

    机译：厌氧折流板反应器;溶解氧硫酸盐还原菌;产甲烷细菌;协同作用;

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