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培养条件对微生物絮凝剂合成影响的研究

发表时间:2009-08-31  浏览量:1722  下载量:774
全部作者: 罗德芳,邵孝侯
作者单位: 河海大学农业工程学院,南方地区高效灌排与农业水土环境教育部重点实验室
摘 要: 目前水处理中使用的絮凝剂包括无机和有机2类,均存在成本高以及污泥难处理等问题,因此开发新型的絮凝剂迫在眉睫。微生物絮凝剂(microbial flocculant,MBF)是由微生物产生的有絮凝活性的代谢产物,凭借其安全无毒、絮凝效果好、易降解、操作简单以及不会导致二次污染等优点,日益引起人们的广泛重视。但培养基的成本过高成为制约微生物絮凝剂发展的主要因素。综述了微生物絮凝剂培养基的开发现状和应用进展,系统介绍了碳源、氮源、初始pH值、离子及通气状况等培养条件对微生物絮凝剂合成的影响,探讨了开发廉价培养基的方法,最后对微生物絮凝剂的发展趋势和研究方向进行了展望。
关 键 词: 农业微生物学;水处理;综述;微生物絮凝剂
Title: Study on effects of culture conditions on the synthesis of microbial flocculants
Author: LUO Defang, SHAO Xiaohou
Organization: Key Laboratory of High Efficiency Irrigation in Southern Region and Agricultural Soil and Water Environment, Ministry of Education, College of Agricultural Engineering, Hohai University
Abstract: There are two kinds of flocculants used in water treatment at present, namely inorganic and organic flocculant. But the cost is high, and the sludge is intractable. So it's necessary to develop a new flocculant. Microbial flocculant is the metabolic product with flocculating activity produced by micro-organisms. It is biodegradable and easy to operate, and can be synthesized at high rate. Its degradation products are harmless to the nature. So it attracts more and more attention from researchers. But the high cost of culture medium has become a major factor to restrict the development of microbial flocculant. In this paper, the development status and application progress of culture medium were summarized, the effects of culture conditions such as carbon and nitrogen source, initial pH values, ions, ventilation conditions, and so forth on the synthesis of microbial flocculants were presented, and the development of cheap culture medium was discussed. Some suggestions concerning the future research on microbial flocculant were presented.
Key words: agromicrobiology; water treatment; review; microbial flocculant
发表期数: 2009年8月第16期
引用格式: 罗德芳,邵孝侯. 培养条件对微生物絮凝剂合成影响的研究[J]. 中国科技论文在线精品论文,2009,2(16):1623-1627.
 
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