首页|堆肥过程氨气、硫化氢协同减排研究进展

堆肥过程氨气、硫化氢协同减排研究进展

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有机固体废弃物年产生量快速增长成为全球面临的巨大挑战,好氧堆肥技术是有机固体废弃物资源利用的主流技术之一,但堆肥过程中微生物剧烈活动,有机质不断分解,往往产生大量恶臭气体并释放到空气中,特别是氨气(NH3)和硫化氢(H2S),对人畜健康和环境质量造成严重影响.本文重点总结了有机固体废弃物好氧堆肥过程中NH3和H2S的产生机制及转化途径,从内源参数控制(C/N、曝气量、初始含水率、初始pH)和外源物质添加(化学添加剂、物理添加剂、生物添加剂)两个方面分别介绍了NH3和H2S的协同减排技术,并基于研究现状对未来该领域的研究方向进行展望.已有研究表明,堆肥各参数之间相互影响、相互作用,需要协同考虑、整体优化,仅靠调控堆体内源参数发挥的作用有限,在优化内源参数的基础上,耦合外源物质添加,可进一步提高堆肥过程中NH3和H2S的减排效率,有助于推动好氧堆肥技术绿色、高效发展.
Research progress on synergistic emission reduction of ammonia and hydrogen sulfide in composting
Rapid growth in the annual production of organic solid waste has become a huge challenge worldwide.Aerobic composting technology is one of the mainstream technologies based on utilizing organic solid waste resources.However,during the composting process,microorganisms are highly active,constantly decomposing organic matter and often produce large amounts of foul-smelling gases that are released in atmosphere,especially ammonia(NH3)and hydrogen sulfide(H2S);these gases have serious impacts on human and animal health as well as environmental quality.The present study focuses on summarizing the generation mechanism and transformation pathway of NH3 and H2S during the aerobic composting process of organic solid waste.Concerning the aspects of controlling endogenous parameters(C/N ratio,aeration rate,initial moisture content,and initial pH)and exogenous material addition(chemical,physical,and biological additives),this study introduces the synergistic emission reduction technologies of NH3 and H2S.Furthermore,this study proposes prospects for future research directions based on the research status quo in this field.A review of existing research has shown that various composting parameters interact with each other and must be considered and optimized together.The effect of regulating the endogenous parameters within the compost pile is limited.However,further optimization of the endogenous parameters and coupling of exogenous material addition can improve the emission reduction efficiency of NH3 and H2S during composting;this will help in promoting the green and efficient development of aerobic composting technology.

aerobic compostingNH3H2Semission reductionorganic wastesolid waste

李松蓉、彭璧辉、徐少奇、贾凯雪、刘婷、任莉、郑义、魏雨泉、徐道青、李季

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中国农业大学资源与环境学院,北京 100193

北京大北农科技集团股份有限公司,北京 100080

中国农业大学有机循环研究院(苏州),江苏 苏州 215100

安徽省农业科学院棉花研究所,合肥 230031

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好氧堆肥 NH3 H2S 减排 有机废弃物 固体废弃物

国家重点研发计划安徽省科技重大专项中国农大-大北农集团专业学位研究生联合培养改革项目国家环境保护食品链污染防治重点实验室开放基金China Agricultural University-Dabeinong Group Professional Degree Graduate Joint Training Reform Project

2016YFD0800601202003a06020003FC2022YB01

2024

10.13254/j.jare.2023.0050

农业资源与环境学报
农业部环境保护科研监测所,中国农业生态环境保护协会

农业资源与环境学报

CSTPCD北大核心
影响因子：1.059
ISSN：2095-6819
年,卷(期)：2024.41(2)
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