不同预处理方法强化剩余污泥厌氧发酵产酸研究进展  

Research Progress on Enhancing Acid Production from Anaerobic Fermentation of Waste Activated Sludge by Different Pretreatment Methods

作　　者：崔鹏 池淑珍 张达 程伯夷 林青山 王宗平[3] 郭刚 CUI Peng;CHI Shuzhen;ZHANG Da;CHENG Boyi;LIN Qingshan;WANG Zongping;GUO Gang(China City Environment Protection Engineering Limited Company,Wuhan 430065,China;Provincial Eco-Environmental Engineering Evaluation Center,Hubei Academy of Eco-Environmental Sciences,Wuhan 430072,China;School of Environmental Science and Engineering,University of Huazhong University of Science and Technology,Wuhan 430074,China;College of Chemistry and Environmental Engineering,University of Chongqing University of Arts and Sciences,Chongqing 402160,China)

机构地区：[1]中冶南方都市环保工程技术股份有限公司,湖北武汉430065 [2]湖北省生态环境科学研究院(省生态环境工程评估中心),湖北武汉430072 [3]华中科技大学环境科学与工程学院,湖北武汉430074 [4]重庆文理学院化学与环境工程学院,重庆402160

出　　处：《能源环境保护》2025年第2期83-94,共12页Energy Environmental Protection

基　　金：国家重点研发计划资助项目(2023YFC3207200,2023YFC3207400);湖北省重点研发计划资助项目(2022BCA065)。

摘　　要：我国剩余污泥产量巨大,处理成本高、难度大,在能源需求持续增长和“双碳”背景下,对其进行资源化利用意义重大。厌氧发酵作为一种“废弃物转化为能量”的技术,可实现剩余污泥(WAS)高效资源化利用,如生产市场价值高、应用范围广的短链脂肪酸(SCFAs)。受限于剩余污泥水解效率低、生物降解性差,通常采用预处理以提高厌氧发酵产酸效率。然而,现有研究主要关注厌氧发酵效能,对不同预处理促进剩余污泥厌氧发酵产酸的机理及优化调控手段等缺乏系统性梳理和探讨。因此,系统分析了不同预处理手段(物理法、化学法和生物法)促进污泥厌氧发酵产酸效能及相关机理,梳理了典型预处理手段的优缺点,讨论了pH、温度、固体停留时间、有机负荷率、反应器类型等关键工艺参数对剩余污泥厌氧发酵的影响,并从环境与经济角度对剩余污泥厌氧发酵技术进行展望,提出发展绿色高效预处理手段结合人工智能技术是后续发展方向,可为污泥高效资源化处理提供参考。The generation of waste activated sludge(WAS)in China has reached substantial levels,posing significant challenges in both disposal costs and environmental management.As urbanization and industrialization continue to accelerate,the effective treatment and disposal of WAS have become a pressing issue that necessitates efficient and sustainable solutions.The importance of utilizing WAS resources is further underscored in the context of rising energy demand and the"Dual Carbon Goals",which aim to reduce carbon emissions and achieve carbon neutrality.In this context,anaerobic fermentation has emerged as a promising"waste-to-energy"technology,offering the potential to recover valuable resources from WAS.Among these resources,short-chain fatty acids(SCFAs)are among the most notable products of anaerobic fermentation.SCFAs have high commercial value and diverse applications in industries such as bioplastics,food,pharmaceuticals,cosmetics,leather processing,and biofuels.However,the anaerobic fermentation of WAS faces several inherent challenges,including low hydrolysis efficiency and poor biodegradability,which severely limit SCFA production.To address these challenges,researchers have explored various pretreatment methods,including physical,chemical,biological,and combined approaches,to enhance the fermentation process and improve SCFA yields.While existing studies primarily focus on the efficiency of sludge acidogenic fermentation,a comprehensive analysis of the underlying mechanisms and optimal strategies for maximizing SCFA production is still lacking.This study aims to fill this gap by systematically analyzing the efficiency and mechanisms involved in enhanced SCFA production from WAS using different pretreatment techniques.It critically evaluates the advantages and disadvantages of each pretreatment method,examining their respective impacts on the fermentation process.Additionally,key operational parameters,such as pH,temperature,solid retention time(SRT),organic loading rate(OLR),and reactor types,are investigated

关 键 词：剩余污泥 厌氧发酵 短链脂肪酸 预处理 机理研究 

分 类 号：X705[环境科学与工程—环境工程]