燕山大学学报2026，Vol.50Issue(2)：169-178,10.DOI:10.3969/j.issn.1007-791X.2026.02.008
有机负荷对预处理液化餐厨垃圾厌氧消化性能及微生物群落的影响
Effect of organic loading rate on anaerobic digestion and microbial community of pretreated liquefied food waste
摘要
Abstract
A microbial agent composed of Bacillus velezensis and yeast was utilized to perform liquefaction pretreatment of food waste,combined with a UASB reactor to evaluate the anaerobic digestion performance and microbial community dynamics of pretreated food waste under different organic loading rates(OLR).The results demonstrated that liquefaction pretreatment significantly enhanced the biodegradability of food waste,enabling the UASB reactor to maintain a COD removal efficiency of 95.5%even as the OLR increased to 10 kgCOD/(m3·d),without acidification or ammonia nitrogen accumulation.Gas production performance analysis revealed that at an OLR of 7.5 kgCOD/(m3·d),the biogas yield reached its maximum value(0.84 m3/(kgCOD·d)),significantly outperforming untreated food waste.Microbial community analysis further showed that Clostridium and Methanobacterium were significantly enriched under high OLR conditions,jointly enhancing anaerobic digestion performance.These findings provide theoretical support and data references for the UASB treatment of liquefied food waste.关键词
有机负荷/预处理液化餐厨垃圾/UASB反应器/厌氧消化性能/微生物群落Key words
organic loading rate/pretreated liquefied food waste/UASB reactor/anaerobic digestion performance/microbial community分类
资源环境引用本文复制引用
葛磊,尹菲,田丽丽,张庆瑞,王名威,王菲菲..有机负荷对预处理液化餐厨垃圾厌氧消化性能及微生物群落的影响[J].燕山大学学报,2026,50(2):169-178,10.基金项目
国家自然科学基金青年科学基金资助项目(52300067) （52300067）
河北省自然科学基金青年科学基金资助项目(E2024203096) （E2024203096）
