| 酵母菌处理系统中氮缺乏引起的污泥膨胀控制 |
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| 引用本文： | 韩云,杨清香,杨敏,张昱,郑少奎.酵母菌处理系统中氮缺乏引起的污泥膨胀控制[J].环境科学,2003,24(4):68-72. |
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| 作者姓名： | 韩云 杨清香 杨敏 张昱 郑少奎 |
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| 作者单位： | 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
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| 基金项目： | 国家自然科学基金资助项目(50078053) |
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| 摘 要： | 研究了酵母菌处理色拉油加工废水系统中投加氮源对处理效果的影响及对污泥膨胀的恢复作用批量实验结果表明:①添加氮源有助于提高去除效果,碳氮比(COD/N)为50/1～20/1的条件下,油去除率最高,达90%以上;②添加氮源能够改善污泥沉降性,COD/N比为50/1、20/1时污泥沉降性明显优于100/1、200/1和不加氮的条件.连续试验中按COD/N为20/1添加氮源,污泥体积指数(SVI)稳定在100～200,油和COD去除率分别达95%和90%以上.氮缺乏色拉油加工废水中添加氮源是控制污泥膨胀的有效方法之一.
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| 关 键 词： | 酵母菌 色拉油加工废水 COD/N 污泥膨胀 |
| 文章编号： | 0250-3301(2003)04-05-0068 |
| 收稿时间： | 2002/7/30 0:00:00 |
| 修稿时间： | 2002年7月30日 |
Bulking Controls Induced by Nitrogen Insufficiency in Yeast System |
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| Han Yun,Yang Qingxiang,Yang Min,Zhang Yu and Zheng Shaokui.Bulking Controls Induced by Nitrogen Insufficiency in Yeast System[J].Chinese Journal of Environmental Science,2003,24(4):68-72. |
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| Authors: | Han Yun Yang Qingxiang Yang Min Zhang Yu and Zheng Shaokui |
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| Institution: | State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, CAS, Beijing 100085, China. |
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| Abstract: | The effect of nitrogen addition to salad oil manufacturing wastewater system was studied. The results of batch experiments demonstrated: 1. addition of nitrogen was helpful to improve oil removal, and the oil removal rate was above 90% when COD/N value was between 50/1 and 20/1; 2. addition of nitrogen improved the sludge settleability, which was much better under COD/N value of 50/1 and 20/1. In the continuous experiment, the value of slude volume index(SVI) was between 100 and 200, and the removal rates of oil and COD were above 95% and 90%, respectively when the COD/N ratio was kept at value of 20/1. Nitrogen addition to salad oil manufacturing wastewater system is an effective method for preventing or controlling sludge bulking. |
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| Keywords: | yeast salad oil manufacturing wastewater COD/N sludge bulking |
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