污水硫自养反硝化技术研究进展
CSTR:
作者:
作者单位:

1.中国科学院生态环境研究中心;2.长江勘测规划设计研究有限责任公司;3.桂林理工大学环境科学与工程学院

基金项目:

国家自然科学基金国际(地区)合作与交流项目(51820105011)


Research progress of sulfur autotrophic denitrification in wastewater
Author:
Affiliation:

1.State Key Laboratory of environmental water quality, Center for Chinese Academy of Sciences and ecology;2.Yangtze River Survey, planning, Design and Research Co. , Ltd., Center for Chinese Academy of Sciences and ecology;3.School of Environmental Science and Engineering, Guilin University of Technology

Fund Project:

International (Regional) Cooperation and exchange program of National Natural Science Foundation of China (No. 51820105011)

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    摘要:

    硫自养反硝化(SAD)是一种绿色低碳的污水脱氮技术,具有成本低、污泥产量少、无需外加有机碳源等优点,已成为污水脱氮技术研究的热点之一。本文阐述了SAD填料组成与复合硫源填料的合成方法,归纳了SAD固定床反应器和流化床反应器的结构及其适用条件,回顾了SAD与电化学、异养反硝化、厌氧氨氧化耦合工艺的研究进展,同时总结了SAD技术优缺点及其三种耦合工艺的脱氮特征。此外,总结了典型的SAD微生物,阐述了代表性微生物Thiobacillus和Sulfurimonas在SAD过程中的反硝化特性及其生长条件。最后,对进一步开发适低温的SAD技术、设计高处理负荷反应器和优化短流程工艺研究等方面进行了展望。本综述旨在为污水脱氮科研人员及工程师提供参考。

    Abstract:

    Sulfur autotrophic denitrification (SAD) has become one of the hotspots in nitrogen removal technology during wastewater treatment because of its characteristic green and low-carbon technology for nitrogen removal from sewage, which has the advantages of low cost, low sludge yield, and no need for organic carbon sources. In this paper, the research progress on SAD of carrier compositions and synthesis method of composite sulfur source filler. The structure and applicable conditions of SAD packed bed reactor and fluidized bed reactor were summarized. The research progress of SAD coupled with electrochemical, heterotrophic denitrification, and anammox processes were reviewed. The advantages and disadvantages of SAD and the nitrogen removal characteristics of the three described. In addition, the typical SAD microorganisms were summarized, and the denitrification characteristics and growth conditions of Thiobacillus and Sulfurimonas in SAD process were described. Finally, the prospects of further development of low-temperature SAD technology, high treatment load reactor design, and optimization of short process technology are presented. This review aims to provide references for researchers and engineers of wastewater denitrification.

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  • 收稿日期:2022-12-05
  • 最后修改日期:2023-02-04
  • 录用日期:2023-02-17
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