不同铁矿物对酱香型白酒封窖泥厌氧消化的影响  

Effects of different iron minerals on anaerobic digestion of cellar mud from brewing sauce-flavored liquor

作　　者：杨亚飞[1,2] 陈贺振 周建国 高小旭 陈笔 杨帆 王岩 王莉[3] YANG Ya-fei;CHEN He-zhen;ZHOU Jian-guo;GAO Xiao-xu;CHEN Bi;YANG Fan;WANG Yan;WANG Li(School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China;Henan International Joint Laboratory of Environment and Resources,Zhengzhou 450001,China;Kweichow Moutai Co.,Ltd.,Renhuai 564501,China;Henan Provincial Institute of Natural Resources Monitoring and Land Improvement,Zhengzhou 450016,China)

机构地区：[1]郑州大学生态与环境学院,河南郑州450001 [2]河南省环境与资源国际联合实验室,河南郑州450001 [3]贵州茅台酒股份有限公司,贵州仁怀564501 [4]河南省自然资源监测和国土整治院,河南郑州450016

出　　处：《应用化工》2024年第1期88-93,共6页Applied Chemical Industry

基　　金：中国博士后科学基金面上及特别资助项目(2021MD703897,2022T150605);河南省重大科技专项(221100320200);河南省科技攻关项目(232102320074)。

摘　　要：通过向废弃窖泥厌氧消化系统中分别添加强氧化性的水铁矿和弱氧化性但有导电性的磁铁矿,考察Fe(Ⅱ)、有机物、微生物群落结构等的变化,探究不同类型Fe(Ⅲ)矿物对窖泥厌氧消化的影响。结果表明,水铁矿组富集铁还原菌,Fe(Ⅱ)含量第12天迅速增加至900 mg/L,表明水铁矿发生了异化铁还原。磁铁矿组与对照组中Fe(Ⅱ)含量几乎一致,说明磁铁矿没有发生异化铁还原。水铁矿组和磁铁矿组中COD去除量分别比空白组增加了16.1%和4.9%,表明水铁矿和磁铁矿均促进了有机物的去除。磁铁矿组富集了Geobacter和Methanosarcina,促进了直接种间电子传递(DIET),增加了23.4%的甲烷产量,而水铁矿抑制甲烷化,降低了32.2%的甲烷产量。By adding strong oxidizing ferrihydrite(amorphous)and weakly oxidizing but conductive magnetite(crystalline)to the anaerobic digestion system of waste cellar mud,the changes of Fe(Ⅱ),organic matter and microbial community structure were investigated,and the effects of different types of Fe(Ⅲ)minerals on anaerobic digestion of cellar sludge were explored.The results showed that the iron reducing bacteria were enriched in the ferrihydrite group,and the Fe(Ⅱ)content increased rapidly to 900 mg/L on the twelfth day,indicating that the dissimilatory iron reduction of the ferrihydrite occurred.The chemical oxygen demand(COD)removal amounts in the ferrihydrite and magnetite groups were 16.1%and 4.9%higher than that in the control group respectively,indicating that the ferrihydrite and magnetite both promoted the removal of organic matter.The magnetite group enriched Geobacter and Methanosarcina,which promoted direct interspecific electron transport(DIET),increasing methane production by 23.4%,while the dissimilatory iron reduction of ferrihydrite inhibited methanogenesis and reduced methane production by 32.2%.

关 键 词：厌氧消化 Fe(Ⅲ)矿物 直接种间电子传递 异化铁还原 

分 类 号：TQ033[化学工程] TQ038[环境科学与工程—环境工程] X705