摘要
通过对经A1-A2-O工艺处理后的焦化废水进行GC-MS分析,以废水中主要的难降解有机物苯甲酰肼,喹啉,萘为唯一碳源进行优势菌种筛选,获得10株优势菌。对其进行分类学鉴定,并通过目标污染物生物降解能力实验,结果B04,K01,K03,K04和N02等5株菌种具有高效降解能力。通过对降解过程的动力学分析,得出不同的菌株降解焦化废水均表现为一级反应关系。在活性污泥中投加优势菌株后,与普通活性污泥法相比,降解率均得到不同程度的提高。研究表明,投加高效菌种有利于提高焦化废水的降解率。
After analyzing the coke - plant wastewater treated by A1 - A2 - O system with the GCMS apparatus. 10 pure - preponderant strains was obtained culturing by benzoyl hydrazine, naphthalene or quinoline as the carbon source which are main components in the post - treated wastewater. By the bio - degradation test, B04, K01, K03, K04 and N02 have higher degradation values. The reaction of biodegradation is proved to be first order in the different strains degrade the coke - plant wastewater by the kinetic analyses of the degradation process. Reformative sludge in which B04, K01, K03, K04 and N02 were added separately has an improved degradation value higher than activated sludge, meanwhile, the mixture of those five strains added in activated sludge have a highest degradation value. The result show that throwing preponderant bacteria in reformative sludge can improve the degrade efficiency on coke - plant wastewater.
出处
《能源环境保护》
2005年第5期16-19,38,共5页
Energy Environmental Protection
关键词
焦化废水
菌种筛选
改良污泥
动力学方程
coke - plant wastewater
screening strains
reformative sludge
kinetics
