污泥高温厌氧消化工程运行及碳足迹特点案例分析  

Case Analysis of Operation and Carbon Footprint Characteristics of Sludge Thermophilic Anaerobic Digestion Project

作　　者：赵刚 唐建国[1] 徐竟成 ZHAO Gang;TANG Jianguo;XU Jingcheng(Shanghai Urban Construction Design and Research Institute〈Group〉Co.,Ltd.,Shanghai200125,China;College of Environmental Science and Engineering,Tongji University,Shanghai200092,China)

机构地区：[1]上海市城市建设设计研究总院<集团>有限公司,上海200125 [2]同济大学环境科学与工程学院,上海200092

出　　处：《净水技术》2022年第7期83-89,共7页Water Purification Technology

基　　金：上海市城市建设设计研究总院(集团)有限公司科研项目(科CK2020056A);国家公派留学基金委项目(201706260099)。

摘　　要：以美国西海岸规模最大的Hyperion污水处理厂为例,分析了污水处理厂污泥的泥质、处理工艺以及污泥高温厌氧消化的运行特点,评价了污泥处理处置全流程的能量平衡和碳足迹。结果表明,污泥高温厌氧消化运行稳定、有机质降解率高、净能耗低,具有突出的碳减排效应。高温厌氧消化污泥产物具有较高的土地利用价值,污泥高温厌氧消化+土地利用的处理处置方式碳足迹为-179 kg CO_(2)/(t DS),可认为是碳中和处理工艺。Hyperion wastewater treatment plant(WWTP),one of the largest-scale WWTPs on the west coast of the United States was analyzed in this paper.Specifically,the characteristics of sludge quality,treatment process,and operation of thermophilic anaerobic digestion were analyzed.Furthermore,the energy balance and carbon footprint of the whole process of sludge treatment and disposal was evaluated.The results showed that the thermophilic sludge anaerobic digestion process run stably with high degradation rate of organic matter and low net energy consumption,which lead to a prominent carbon emission reduction effect.The end-product of thermophilic anaerobic digestion is resourceful for land use.The carbon footprint of thermophilic anaerobic digestion of sludge+land use is-179 kg CO_(2)/(t DS),which can be considered as a carbon neutral treatment process.

关 键 词：污泥处理 高温厌氧消化 土地利用 能耗 碳足迹 

分 类 号：X703[环境科学与工程—环境工程]