【摘 要】
：
该论文以探索微生物防治SRB腐蚀为出发点,首先根据SRB的生长特点,选择脱氮硫杆菌(T.denitrificans)作为防治SRB腐蚀的菌源.从土壤中分离和提纯出该菌,并通过研究其培养特性,
论文部分内容阅读
该论文以探索微生物防治SRB腐蚀为出发点,首先根据SRB的生长特点,选择脱氮硫杆菌(T.denitrificans)作为防治SRB腐蚀的菌源.从土壤中分离和提纯出该菌,并通过研究其培养特性,和借助透射电镜观察该菌株的形貌,对该菌株的种属进行了鉴定.研究发现该菌株呈杆状,单个、成对或短链状排列,具有单根极生鞭毛,无芽孢,兼性厌气,专性无机化能自养型,确定其属于脱氮硫杆菌;脱氮硫杆菌生长特性是生长缓慢,生长过程中产生H<+>,培养基的pH降低;其最佳生长pH为7.0,和SRB生长的pH值相近,为两者混合培养提供可行性依据.该论文研究了T.denitrificans与SRB共同培养时,对SRB生长和代谢的影响.测定了T.denitrificans与杀菌剂联合使用时对杀死SRB的影响.利用失重法、电位跟踪、极化曲线、电化学交流阻抗、电子探针、扫描探针显微镜等方法,对脱氮硫杆菌防治SRB腐蚀中的腐蚀产物的组成,生物膜的形貌以及电化学行为进行了研究.
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