摘要
污泥厌氧消化作为污泥处理的一个重要手段,可以实现污泥的资源化。但在污泥厌氧消化过程中水解速率较低的缘故,厌氧消化的效率受到影响,所以要对污泥进行预处理。文章基于污泥厌氧消化现状,综述了化学氧化法对污泥厌氧消化产甲烷影响的研究进展,例如臭氧氧化法、高铁酸钾氧化法、过氧化氢氧化法、次氯酸钠氧化法、光催化氧化法、过硫酸盐氧化法、Fenton氧化法等,比较并分析了不同氧化法的化学药剂成本、能源消耗、设备成本与甲烷生产所带来的收益等。从低碳角度分析氧化法对厌氧消化的影响,并对污泥厌氧消化预处理技术以及污泥资源化利用的发展与应用作了展望,为后续厌氧消化预处理的发展提供参考。
As an important means of sludge management,sludge anaerobic digestion can realize sludge recycling.The low hydrolysis rate in anaerobic digestion of sludge adversely affects the efficiency,necessitating pretreatment of the sludge.Based on the current situation of sludge anaerobic digestion,this paper summarizes the research progress of chemical oxidation on sludge anaerobic digestion and methane production,such as ozone oxidation,potassium ferrate oxidation,peroxide hydrogen oxidation,sodium hypochlorite oxidation,photocatalytic oxidation,persulfate oxidation,Fenton oxidation process,etc.The chemical costs,energy consumption,equipment costs and methane production benefits of different oxidation methods are compared and analyzed.The effect of oxidation on anaerobic digestion is analyzed from the angle of low carbon.The future development and application of sludge anaerobic digestion pretreatment technologies and sludge resource utilization is prospected,which can provide reference for the development of future anaerobic digestion pre-treatment.
作者
杨阿明
雷程
朱学峰
YANG Aming;LEI Cheng;ZHU Xuefeng(Fu Dan Water Service Engineering and Technology Limited Company,Shanghai 200092,China;School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《净水技术》
CAS
2024年第11期19-28,77,共11页
Water Purification Technology
关键词
污泥
厌氧消化
氧化法
预处理
低碳
sludge
anaerobic digestion
oxidation process
pre-treatment
low-carbon
