食品与发酵工业2025，Vol.51Issue(14)：210-217,8.DOI:10.13995/j.cnki.11-1802/ts.041892
溶解氧调控酿酒污水再利用效果及微生物机制
Regulation of dissolved oxygen for brewing wastewater reuse and its microbial mechanisms
摘要
Abstract
During the brewing process,a large amount of wastewater is generated,characterized by high concentrations of organics and significant treatment challenges.Meanwhile,the low carbon content in domestic wastewater leads to a deficiency in organic matter sup-ply and poor nitrogen removal efficacy.This study utilized brewing wastewater as a carbon source to enhance nitrogen removal from domes-tic wastewater.It investigated nitrogen removal efficiency,microbial community structure,and gene enrichment characteristics under dif-ferent dissolved oxygen(DO)conditions and designs an application model.Results indicated that under DO conditions of 3-5 mg/L,mixing brewing wastewater with domestic wastewater at a volume ratio of 1∶380 could meet the level 1A standard of GB 18918-2002.A decrease in DO concentration led to a reduction in microbial diversity,influencing the synergistic succession of genera such as Sphaeroti-lus,Hydrogenophaga,and Zoogloea,thereby regulating pollutant removal performance.Additionally,the key genes amoA,amoB,amoC,nirK,and nosZ in nitrogen metabolism pathways were more susceptible to such changes,diminishing pollutant removal performance.Reu-sing brewing wastewater in municipal domestic wastewater treatment plants or within the own domestic wastewater treatment facilities of breweries as a carbon source could achieve cost reduction,efficiency enhancement,energy conservation,and carbon reduction.This study provides valuable insights into brewing wastewater reuse technologies.关键词
酿酒污水/生活污水/溶解氧/脱氮性能/微生物群落结构Key words
brewing wastewater/low carbon wastewater/dissolved oxygen/denitrification performance/microbial community structure引用本文复制引用
柏松,杨英,何静,罗玲,杜娟,徐丽萍..溶解氧调控酿酒污水再利用效果及微生物机制[J].食品与发酵工业,2025,51(14):210-217,8.基金项目
四川省重点研发计划项目(2023YFN0079) （2023YFN0079）
泸州市应用基础研究科技项目(2023JYJ009) （2023JYJ009）
