微生物絮凝剂产生菌的筛选与特性研究  

Screening of Microbial Flocculant Producing Strain and Its Characteristic

作　　者：王国惠[1] 李春茂[2] 

机构地区：[1]中山大学环境科学与工程学院,广东广州510275 [2]华南理工大学,广东广州510640

出　　处：《微生物学杂志》2006年第2期26-30,共5页Journal of Microbiology

基　　金：河南省科技厅自然科学基金(0211050900)

摘　　要：从活性污泥中筛选到1株絮凝活性很高的菌株MY-88。研究结果表明，MY-88的初始培养pH为6．5～7．0，最适温度为25～35℃，最适碳源为葡萄糖；在摇床速度为180r／min时，其絮凝率达100％。Na^＋、K^＋、Ca^2＋、Fe^3＋均有较好的促絮凝作用，其中Ca^2＋尤为显著，使絮凝率这99．6％。MY-88在较大的pH、温度、摇床速度、搅拌速度、水样pH等范围内均具有较高的絮凝活性，显示出良好的应用前景。A strain MY-88 possessing very high flocculation was screened from activated sludge. The study showed that the initial culture of MY-88 was pH 6.5-7.0, and optimum temperature was 25-35℃, and the best carbon source was glucose, when it was cultured in shaker at 180 rpm, the flocculation rate was 100%. Na^＋、K^＋、Ca^2＋ and Fe^3＋ facilitate the flocculation, especially Ca^2 ＋ , and it alone made the flocculation rate at 99.6 %. MY-88 has fairly high flocculation activity at relatively wide range of pH, temperature, shaker＇s rpm, mixing speed, and pH of water sample, demonstrating good application prospects.

关 键 词：絮凝剂产生菌 微生物絮凝剂 絮凝活性 

分 类 号：X172[环境科学与工程—环境科学]