高效硝化菌Alcaligenes faecalis CL-8降解特性及其应用研究  

Degradation characteristics of alcaligenes faecalis CL-8 and its application in wastewater treatment

作　　者：古才荣 GU Cai-rong(Sinopec Maoming Petrochemical Company,Maoming 525000,China)

机构地区：[1]中国石油化工股份有限公司茂名分公司,广东茂名525000

出　　处：《现代化工》2022年第8期193-198,203,共7页Modern Chemical Industry

摘　　要：为进一步提高前期筛选获得的Alcaligenes faecalis CL-8菌株的硝化效率,对该菌株在硝化过程中的发酵条件进行优化,通过对碳源种类、碳源浓度、初始pH、培养温度、摇床转速进行单因素实验,确定了Alcaligenes faecalis CL-8的最适培养条件为:乙酸钠为碳源、C/N=10、培养温度为28℃、摇床转速为160 r/min、pH=7.2。实验证明钙离子的存在会对菌株CL-8产生抑制作用,钙离子浓度越高抑制作用越强。将菌株投入废水中进行污水处理实验,结果表明,Alcaligenes faecalis CL-8对废水处理有积极作用,且能够在高氨氮废水处理中占据种群优势。Alcaligenes faecalis CL-8,an efficient nitrifying strain,is preliminarily screened out from active sludge.In order to improve the nitrifying efficiency of the strain,the fermentation conditions of the strain in the nitrification process are optimized.Through single factor experiments on carbon source type,carbon source concentration,initial pH,culture temperature and shaking table speed,the optimum culture conditions for alcaligenes faecalis CL-8 are determined as follows:sodium acetate is used as carbon source,C/N=10,culture temperature is at 28℃,pH=7.2,and the shaking table speed is 160 rpm.It is proved that the presence of calcium ion has an inhibitory effect on CL-8 strain,and the higher the calcium ion concentration,the stronger the inhibitory effect.Alcaligenes faecalis CL-8 is proved to have a positive effect on wastewater treatment,and is able to dominate the population in the initial stage of inoculation.

关 键 词：高氨氮废水 硝化细菌 降解特性 污水处理 粪产碱杆菌 

分 类 号：X703[环境科学与工程—环境工程]