生活污水高效降解混合菌群的研究  

Study on high effective mixed culture for domestic sewage degrading

作　　者：王国惠[1] 崔光照 黄布毅[2] 

机构地区：[1]中山大学环境科学与工程学院,广州510275 [2]郑州轻工业学院,郑州450002

出　　处：《给水排水》2005年第5期44-46,共3页Water & Wastewater Engineering

基　　金：河南省科技厅自然科学基金项目(0211050900)

摘　　要：从下水道中筛选5株COD高效降解菌,经初步鉴定,这5株菌分属于假单胞菌属(2株)、芽孢杆菌属(2株)和短杆菌属(1株)。将这5株高效菌组成混合菌群,对该菌群的COD和BOD降解能力及其生长条件进行了研究。结果表明,该菌群对有机物的降解效率很高,CODCr的降解率平均为92.94%,BOD5的降解率平均为92.36%。该菌群的最适碳源为甘蔗汁,最适氮源为蛋白胨;其pH和温度范围较广,适宜pH为5～8,最适pH为7;温度为25℃～40℃,最适温度为35℃。该菌群适于好氧处理。Five strains of high effective COD degrading, through primary identifying, the degrading microorganisms have been believed as mixed culture of two strains Pseudomonas, two strains Bacillus and one strain Brevibacterium.Their degrading ability to COD and BOD and growth conditions were studied. The result indicated that the mixed culture had very high degrading effectiveness for organic compounds, average degradations of 92.94% and 92.36% were obtained for CODCr and BOD5 respectively. Sugarcane liquid is the best carbon source of the mixed culture and peptone is the best nitrogen source. The suitable range of pH and temperature for growth are wide, as 5 to 8 (best 7) and 25℃ to 40℃ (best 35℃) respectively. These strains are appropriate for aerobic biological treatment.

关 键 词：菌群 生活污水 混合 高效降解菌 假单胞菌属 CODCr 初步鉴定 芽抱杆菌 生长条件 降解能力 降解效率 温度范围 最适PH 最适温度 好氧处理 BOD 降解率 下水道 短杆菌 高效菌 有机物 甘蔗汁 蛋白胨 平均 

分 类 号：X703[环境科学与工程—环境工程] TS252.54[轻工技术与工程—农产品加工及贮藏工程]