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垃圾焚烧厂渗沥液处理系统碳排放特性研究

冮沁彦 马小茜 刘超 汪涵 王亚宜

冮沁彦, 马小茜, 刘超, 汪涵, 王亚宜. 垃圾焚烧厂渗沥液处理系统碳排放特性研究[J]. 环境工程, 2024, 42(4): 31-39. doi: 10.13205/j.hjgc.202404004
引用本文: 冮沁彦, 马小茜, 刘超, 汪涵, 王亚宜. 垃圾焚烧厂渗沥液处理系统碳排放特性研究[J]. 环境工程, 2024, 42(4): 31-39. doi: 10.13205/j.hjgc.202404004
GANG Qinyan, MA Xiaoqian, LIU Chao, WANG Han, WANG Yayi. RESEARCH ON CARBON EMISSION CHARACTERISTICS OF MUNICIPAL SOLID WASTE INCINERATION LEACHATE TREATMENT SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 31-39. doi: 10.13205/j.hjgc.202404004
Citation: GANG Qinyan, MA Xiaoqian, LIU Chao, WANG Han, WANG Yayi. RESEARCH ON CARBON EMISSION CHARACTERISTICS OF MUNICIPAL SOLID WASTE INCINERATION LEACHATE TREATMENT SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 31-39. doi: 10.13205/j.hjgc.202404004

垃圾焚烧厂渗沥液处理系统碳排放特性研究

doi: 10.13205/j.hjgc.202404004
基金项目: 

上海市国资委技术创新和能级提升项目"垃圾渗滤液提标处理和智慧管控技术装备集成与示范"(2018001)

详细信息
    作者简介:

    冮沁彦(2000-),女,硕士研究生,主要研究方向为水污染控制和微生物技术。2230505@tongji.edu.cn

    通讯作者:

    王亚宜(1971-),女,教授,主要研究方向为水污染控制和微生物技术。wyywater@126.com

RESEARCH ON CARBON EMISSION CHARACTERISTICS OF MUNICIPAL SOLID WASTE INCINERATION LEACHATE TREATMENT SYSTEM

  • 摘要: 推进污水处理过程碳减排对于实现碳达峰、碳中和目标具有重要意义。垃圾焚烧渗沥液成分复杂、污染物浓度高,其处理系统是温室气体的重要排放源之一。然而,目前渗沥液处理系统碳排放特性尚不清晰,这阻碍了减污降碳方案制定与实施步伐。以长三角地区某典型生活垃圾焚烧发电厂渗沥液处理系统为研究对象,采用生命周期评价方法(life cycle assessment,LCA)对其进行碳足迹核算,重点关注其在不同水质、水量条件下的碳排放特性并评估其减污降碳潜力。结果表明:渗沥液处理系统的直接碳排放量呈春夏高、秋冬低的趋势,其中,N2O是最重要的直接碳排放来源(0.4~47.7 t CO2 eq);间接碳排放量远高于直接碳排放量,电力是最大的间接碳排放来源(78.2~121.3 t CO2 eq)。虽然外加碳源可在一定程度上减少直接碳排放量,但会增加间接碳排放量。回收厌氧消化(anaerobic digestion,AD)单元中产生的CH4(0~160.3 t CO2 eq)是实现渗沥液处理系统碳中和重要途径。垃圾分类后虽然直接和间接碳排放量有所降低,但碳回收量有限,使得渗沥液处理厂净碳排放量增加,渗沥液处理系统从碳汇转变为碳源。总体来说,在渗沥液处理系统碳减排策略中,电力是需要重点控制的碳排放来源,可通过提高脱氮效果来减少直接碳排放量。在各渗沥液处理单元中,两级硝化反硝化(A/O)工艺的升级改进至关重要,可有效实现节能减排。
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  • 收稿日期:  2023-11-10
  • 网络出版日期:  2024-06-01

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