乙酸、丙酸和丁酸为SRB碳源时的利用率  

Utilization Ratio of Acetic,Propionic and N-Butyric Acids Used as Carbon Sources of SRB

作　　者：宋秀兰[1] 李亚新[1] 

机构地区：[1]太原理工大学环境科学与工程学院,山西太原030024

出　　处：《中国矿业大学学报》2007年第4期527-530,共4页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(50278060);山西省留学归国人员研究基金项目(2002-19);山西省自然科学基金项目(2006011044)

摘　　要：用以乳酸钠为碳源的培养基富集了硫酸盐还原菌(SRB).研究了乙酸、丙酸和丁酸作为SRB碳源进行硫酸盐还原时,SRB对硫酸盐的还原率及相应3种挥发脂肪酸(VFA)的利用率.结果表明:乙酸、丙酸和丁酸作为SRB碳源时,SRB对硫酸盐还原率的大小依次为丙酸、丁酸、乙酸,SRB对各种VFA理论利用率的大小依次为丙酸、丁酸、乙酸.由此确定利用污泥酸性发酵产物作为SRB碳源时,应向使污泥发酵产物中丙酸比例最大的方向控制.Sulfate reducing bacteria （SRB） was enriched with culture media using sodium lactate as carbon source. Sulfate reducing ratio and different volatile fatty acids utilization ratio with SRB wer studied, with acetic, propionic and n-butyric acids used as carbon sources respectively. The results show that the sulfate reducing ratio with SRB decreases in the order of propionic, n-butyric and acetic acids; the utilization ratio in theory of every kind of short-chain Volatile Fatty Acids （VFA） with SRB also decreases in the order of propionic, n-butyric and acetic acids. To make sulfate reducing reactor more economical, propionic acid content should be the largest in the sludge fermentation product component with sludge fermentation product as carbon source.

关 键 词：乙酸 丙酸 丁酸 硫酸盐还原菌 碳源 

分 类 号：X703[环境科学与工程—环境工程]