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| 硅酸盐细菌GY03菌株的絮凝特性 | |
| 引用本文： | 连宾,陈烨,袁生,刘丛强.硅酸盐细菌GY03菌株的絮凝特性[J].矿物学报,2003,23(4):303-307. |
| 作者姓名： | 连宾 陈烨 袁生 刘丛强 |
| 作者单位： | 1. 南京师范大学,生命科学学院,江苏,南京,210097;贵州工业大学,化学与生物工程学院,贵州,贵阳,550003 2. 贵州工业大学,化学与生物工程学院,贵州,贵阳,550003 3. 南京师范大学,生命科学学院,江苏,南京,210097 4. 中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002 |
| 基金项目： | 中国科学院环境地球化学国家重点实验室开放基金，贵州工业大学基金 |
| 摘 要： | 从土壤中筛选分离到一株硅酸盐细菌GY03菌株，对其絮凝特性进行了研究。结果表明，GY03菌株营养要求简单，在生长的同时合成胞外高聚物，具有良好的絮凝性能。GY03菌株所产絮凝物质有88％以上分布在细胞表面，该絮凝剂的絮凝活性随菌体生长量的增加而同步增高，不同金属离子对GY03菌株絮凝活性有影响。实验条件下，1h内GY03菌株所产生的微生物絮凝剂对高岭土悬浮液絮凝率为78％，经放置24h后最高絮凝率可达98％，对制药废水浊度去除率为78．1％～94．7％，COD去除率为48．0％-87．5％，生活污水浊度去除率为85．3％～92．5％，对墨汁溶液的脱色率为53．2％以上。因而认为该菌株是一种很有应用前景的絮凝剂产生菌。 |
| 关 键 词： | 微生物絮凝剂 硅酸盐细菌 絮凝作用 废水处理 |
| 文章编号： | 1000-4734(2003)04-0303-05 |
| 修稿时间： | 2003年4月22日 |
STUDY ON THE FLOCCULABILITY OF SILICATE BACTERIAL GY03 STRAIN |
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| LIAN Bin.STUDY ON THE FLOCCULABILITY OF SILICATE BACTERIAL GY03 STRAIN[J].Acta Mineralogica Sinica,2003,23(4):303-307. | |
| Authors: | LIAN Bin |
| Abstract: | Microbial flocculants are a kind of metabolite produced by microorganisms, which have better flocculability properties than inorganic and organic symbiotic macromolecule flocculants. In this paper, the flocculability of a strain of silicate bacterial GY03 is studied. The main results are presented as follows: Different canions have different effects on the flocculating activity of silicate bacterial GY03.The strain can form microbial flocculant after 5 days' culture in silicate bacterial medium, which can promote flocculation ability and reduce suspending solid pellets used in wastewater treatment. As a result, the turbid removal rate could reach 98% for kaolin clay suspension liquid, 78.1%-94.7% and COD removal rate 48.0%-87.5% for pharmaceutical wastewater, turbid removal rate 85.3%-92.5% for living wastewater, color removal rate of above 53.2% for black ink solution. |
| Keywords: | microbial flocculant silicate bacteria flocculability wastewater treatment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |