中国农业大学学报2024，Vol.29Issue(6)：230-239,10.DOI:10.11841/j.issn.1007-4333.2024.06.23
受控条件下氧分压对生物质废弃物堆肥臭气排放的影响
Effect of oxygen partial pressure on odor emission from biomass waste composting under controlled condition
摘要
Abstract
Aerobic composting technology is the fundamental technology to realize safe treatment and resource utilization of organic solid waste in controlled ecological life support system(CELSS).However,the direct application of compost in CELSS is limited by excessive oxygen supply and energy consumption due to the differences between ground condition and space.Among which,the oxygen supply is an important factor that comprehensively affects the composting process,energy consumption and odor emission.In order to obtain suitable oxygen supply parameters in composting with low energy consumption and low emissions for controlled ecological life support system,a mixture of oxygen and nitrogen was used to simulate gas supply under controlled condition,meanwhile,kitchen waste and garden waste were used as composting materials.The effects of oxygen partial pressure on the physicochemical properties and the emissions of NH3 and H2S during the process were investigated by setting three treatments of 5％(T1),15％(T2)and 30％(T3)oxygen partial pressure.The results showed that:T2 treatment stimulated the materials'biodegradation and temperature rise of the reactor.Its maximum temperature(65.95 ℃)and the high-temperature duration(14 days)were higher than those in the other two treatments.Compared with T1 and T3 treatments,the accumulative emission of NH3 in T2 treatment was reduced by 65.35％and 24.01％,respectively.Combining the physical and chemical indexes of the products and the emission of odor gases,it was concluded that the oxygen partial pressure of 15％was suitable for composting.This study provided a scientific reference for the construction of organic cycle system in controlled ecological life support system.关键词
堆肥/氧气/氧分压/厨余垃圾/恶臭气体Key words
composting/oxygen/oxygen partial pressure/kitchen waste/odor gas分类
资源环境引用本文复制引用
孙玉鑫,王凌霄,李文,许钊,周陈俊男,李彦明,常瑞雪,艾为党..受控条件下氧分压对生物质废弃物堆肥臭气排放的影响[J].中国农业大学学报,2024,29(6):230-239,10.基金项目
人因工程重点实验室基金资助项目(6142222210702) （6142222210702）
中国农业大学教授工作站(20210505) （20210505）
