碳捕获-厌氧消化耦合技术回收城市污水能源研究进展

杨媛; 邓伟航; 胡以松; 陈荣; 王晓昌

doi:10.13205/j.hjgc.202305028

碳捕获-厌氧消化耦合技术回收城市污水能源研究进展

doi: 10.13205/j.hjgc.202305028

杨媛^1,2,
邓伟航¹,
胡以松^1,2, ,,
陈荣^1,2,
王晓昌^1,2

1. 西安建筑科技大学环境与市政工程学院西北水资源与环境生态教育部重点实验室, 西安 710055;
2. 国家城市非传统水资源开发利用国际科技合作基地, 西安 710055

基金项目:

陕西省自然科学基础研究计划项目(2022JM-237)

中国博士后科学基金(2021MD703870)

详细信息

作者简介:
杨媛(1991-),女,博士,主要研究方向为膜法污水处理与资源化。383842205@qq.com

通讯作者:
胡以松(1986-),男,副教授,主要研究方向为MBR污水处理技术。jeffsion414@163.com

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出版历程
- 收稿日期: 2022-05-27

RESEARCH PROGRESS ON COUPLED CARBON CAPTURE-ANAEROBIC DIGESTION TECHNOLOGY FOR ENERGY RECOVERY FROM MUNICIPAL WASTEWATER

YANG Yuan^1,2,
DENG Weihang¹,
HU Yisong^{1,2
, ,},
CHEN Rong^1,2,
WANG Xiaochang^1,2

1. Key Laboratory of Northwest Water Resource, Environment and Ecology (Ministry of Education), School of Environment and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. International Science and Technology Cooperation Center for Urban Non-conventional Water Resources Development and Utilization, Xi'an 710055, China

摘要

摘要: 在"双碳"战略驱动下,城市污水处理模式逐渐从"以能耗换水质"转变为"能源资源回收利用"。污水中富含蛋白质、脂质、多糖等有机物,通过物化/生化方式进行碳捕获,可获得富含有机物的浓缩产物,有效提升后续厌氧消化的能源回收效率。概述了典型碳捕获工艺[高负荷活性污泥(HRAS)法、化学强化一级处理(CEPT)和膜分离技术等]的捕获机制,从COD去除率、碳捕获率、污水浓缩程度等角度对典型碳捕获工艺进行了比较与总结,分析了碳捕获产物性质和能源回收途径,探讨了富碳浓缩产物的厌氧产甲烷效能及其影响因素,并通过解析工程化应用案例展示了"碳捕获-厌氧消化"耦合技术的优势和前景。最后,指出了工程应用中存在的问题、挑战及未来展望。
- 能源回收 /
- 高负荷活性污泥法 /
- 化学强化一级处理 /
- 膜分离 /
- 碳捕获-厌氧消化
Abstract: Driven by the "carbon peak and neutrality" strategy, the treatment paradigm of municipal wastewater (MWW) is gradually changing from "energy consumption for water quality" to "energy and resources recovery". MWW is rich in proteins, lipids, polysaccharides and other organic matter. Carbon capture via physicochemical/biochemical methods can obtain concentrated products rich in organic matter, which can effectively improve the energy recovery efficiency of subsequent anaerobic digestion. The capture mechanism, COD capture rate and research progress of typical carbon capture processes (high-rate activated sludge (HRAS) process, chemically enhanced primary treatment (CEPT) process and membrane separation technology, etc.) are analyzed and compared. In addition, the properties of MWW concentrate and downstream energy recovery technologies are illustrated. The anaerobic methanogenic efficiency of MWW concentrate and its affecting factors are discussed, with the advantages and prospects of carbon capture-anaerobic digestion coupled technology demonstrated through an engineering case study. At last, the issues, challenges and future prospects for widespread engineering application of coupled carbon capture-anaerobic digestion technology are pointed out.
- energy recovery /
- high-rate activated sludge process /
- chemically enhanced primary treatment /
- membrane separation /
- carbon capture-anaerobic digestion

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