氨氮和林可霉素对有机物厌氧消化的抑制效应  

Inhibitory effect of ammonia and lincomycin on anaerobic digestion

作　　者：何品晶[1] 管冬兴[1] 吴铎[1] 吕凡[1] 邵立明[1] 

机构地区：[1]同济大学环境科学与工程学院固体废物处理与资源化研究所,上海200092

出　　处：《化工学报》2011年第5期1389-1394,共6页CIESC Journal

基　　金：国家高技术研究发展计划重点项目(2008AA062401);上海市优秀学科带头人计划项目(10XD1404200)~~

摘　　要：以含高蛋白质和抗生素的林可霉素生产残渣产沼利用为背景,通过中温厌氧消化批式实验,研究不同的氨氮浓度（300~4500 mg·L-1）和林可霉素浓度（0~100 mg·L-1）对含氮含抗生素类生物质废物的厌氧消化产甲烷能力的抑制作用。结果表明,氨氮和林可霉素浓度均与累积产甲烷量显著负相关。经过240 h的培养,氨氮和林可霉素对厌氧消化产甲烷量的半抑制浓度（EC50）分别为1445 mg·L-1和35 mg·L-1;游离氨的EC50在27~28 mg·L-1之间。在25 mg·L-1林可霉素存在下,氨氮对厌氧消化的抑制趋势和抑制程度并未明显改变,说明氨氮的抑制作用独立于林可霉素。In order to utilize protein-rich bio-wastes from the process of lincomycin manufacturing,mesophilic anaerobic digestion experiments were conducted in a batch mode to evaluate the inhibitory effects of ammonia concentrations（300—4500 mg·L-1）and lincomycin ones（0—100 mg·L-1）on methane production by anaerobic digestion of the bio-wastes.The results show that both the concentrations of ammonia and lincomycin had significant negative correlations with the cumulated amount of methane.After 240 h of batch incubation,the 50% effective inhibitory concentrations（EC50）were 1445 mg·L-1 and 35 mg·L-1 for ammonia and lincomycin respectively,and 27—28 mg·L-1 for free ammonia.Furthermore,there existed lincomycin in the system at concentration of 25 mg·L-1,the inhibitory trend and level of ammonia on anaerobic digestion were the same as that without lincomycin.Therefore,the inhibition of ammonia on anaerobic digestion is independent of lincomycin.

关 键 词：抗生素菌渣 氨氮 林可霉素 高蛋白质类废物 中温厌氧消化 抑制程度 

分 类 号：X705[环境科学与工程—环境工程]