摘要
有机固体废弃物的厌氧消化在实现废物资源化利用中有重要意义。近年来,通过使用不同类型的添加剂提高厌氧消化的效率成为研究热点,其中铁基和碳基材料因为具有良好的导电性被广泛使用。着重归纳了铁基和碳基材料促进有机固体废弃物厌氧消化的研究进展,总结了两种添加剂在厌氧消化中的作用机制。铁基材料主要通过降低氧化还原电位为微生物创造生存条件、加强直接种间电子转移(DIET)、通过刺激关键酶促进水解和酸化过程的作用。碳基材料除可加强DIET外,还通过吸附抑制性化合物和富集功能性微生物及支持微生物定殖来发挥作用。同时,铁碳材料可协同促进厌氧消化。最后,深入分析了这两种材料在有机固体废弃物的厌氧消化过程中存在问题,并展望了其发展前景。
The anaerobic digestion of organic solid waste is of great significance in achieving waste resource utilization.In recent years,improving the efficiency of anaerobic digestion by using different types of additives has become a research hotspot,among which iron based and carbon based materials are widely used due to their good conductivity.The research progress of iron based and carbon based materials in promoting anaerobic digestion of organic solid waste was summarized,and the mechanism of the two materials in anaerobic digestion was summarized.It was found that iron based materials mainly created survival conditions for microorganisms by reducing oxidation-reduction potential,enhancing direct interspecific electron transfer(DIET),promoting hydrolysis and acidification processes by stimulating key enzymes.In addition to enhancing DIET,carbon based materials also played a role by adsorbing inhibitory compounds,enriching functional microorganisms,and supporting microbial colonization.Meanwhile,iron based materials and carbon based materials could synergistically promote anaerobic digestion.Finally,the existing problems of the two materials in promoting anaerobic digestion of organic solid waste were analyzed,and their development prospects were prospected.
作者
杨军
付文斌
马静
王敬敬
高天歌
杜晓雯
YANG Jun;FU Wenbin;MA Jing;WANG Jingjing;GAO Tiange;DU Xiaowen(School of Environment and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070;Key Laboratory of Yellow River Water Environment in Gansu Province,Lanzhou Gansu 730070)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2024年第8期1184-1191,共8页
Environmental Pollution & Control
基金
甘肃省高校产业支持计划项目(No.2020C-38)
甘肃省重点研发计划项目(No.2021-0201-GXC-0145)。
关键词
厌氧消化
铁基材料
碳基材料
有机固体废弃物
微生物群落
anaerobic digestion
iron based materials
carbon based materials
organic solid waste
microbial communities
