摘要
焚烧是垃圾处理的主要方式,垃圾堆放贮存过程中产生的渗滤液具有高化学需氧量、高悬浮性固体和高盐分等特点,处理难度大,成本较高。厌氧消化是渗滤液处理的重要工艺,文中汇总了5种主流的厌氧工艺在垃圾焚烧厂渗滤液处理中的研究进展,分析了上流式厌氧污泥床(UASB)、膨胀颗粒污泥床(EGSB)和厌氧膜生物反应器(AnMBR)等工艺在处理垃圾渗滤液中的技术特点,探究了这些工艺的各种影响因素。针对碳酸钙沉淀导致管道堵塞,硫酸盐抑制微生物活性导致沼气产量下降,悬浮物浓度过高导致污泥流失等问题进行了分析。在文献分析的基础上,提出了厌氧工艺在垃圾焚烧厂渗滤液处理中的发展趋势,为工艺研究和技术开发提供新思路。
Incineration is the main way of waste disposal.The leachate produced in the process of waste stacking and storage has the characteristics of high chemical oxygen demand,high floating solid and high salt,which is difficult to dispose and costly.Anaerobic digestion is an important unit of leachate treatment.In this paper,the research progress on several mainstream anaerobic processes in incinerators leachate treatment was summarized.Technical characteristics of technologies such as upflow anaerobic sludge bed(UASB),expanded granular sludge bed(EGSB)and anaerobic membrane bioreactor(AnMBR)were discussed;and various influencing factors on these treatment processes were explored.The problems including pipe clog caused by calcium carbonate precipitation,biogas production decline caused by sulfates inhibition and sludge loss caused by high suspended matter concentration were analyzed.Combined with literature analysis,the development trend of anaerobic process in leachate treatment of waste incineration plant was put forward,which provides new ideas for process research and technology development.
作者
姚军强
吴志跃
郑晓宇
刘媛
董仁杰
乔玮
YAO Jun-qiang;WU Zhi-yue;ZHENG Xiao-yu;LIU Yuan;DONG Ren-jie;QIAO Wei(College of Engineering,China Agricultural University,Research&Development Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels,Energy Authority,National Development and Reform Committee,Beijing 100083,China;Everbright Environmental Technology(China)Co.Ltd.,Nanjing 210007,China;Everbright Environmental Protection(China)Co.Ltd.,Shenzhen 518033,Guangdong,China)
出处
《新能源进展》
2021年第2期143-150,共8页
Advances in New and Renewable Energy
基金
国家自然科学基金项目(51778616)。
关键词
厌氧消化
垃圾焚烧
渗滤液
影响因素
anaerobic digestion
waste incineration
leachate
influencing factor
