| 改性天然高分子絮凝剂和聚合氯化铝复合沉降与絮体分形 |
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| 引用本文： | 马伟,郭丽燕,萧锦.改性天然高分子絮凝剂和聚合氯化铝复合沉降与絮体分形[J].环境科学,2001,22(1):114-116. |
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| 作者姓名： | 马伟 郭丽燕 萧锦 |
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| 作者单位： | 1. 大连理工大学化工学院,大连,116024
2. 华南理工大学,广州,510641 |
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| 基金项目： | 国家自然科学基金资助项目(29777011) |
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| 摘 要： | 在改性天然高分子絮凝剂(CMS)和聚合氯化铝(PAC)复合处理有机废水絮体沉降速度的实验中,用显微镜和电镜观察到絮凝物是有自相似特征的不规则形状,具有分形特征.在pH值为6.86、聚合氯化铝(PAC)加入量为80mg/L条件下,天然改性高分子药剂加入量为1.5mg/L时沉降效果最好,与单独加入PAC相比20min时平均沉降速度分别为2.6mm/min和1.7mm/min.并计算出此时复合处理形成絮凝体的分维数为1.70.
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| 关 键 词： | 天然高分子 聚合铝 絮凝 分形 水处理 |
| 文章编号： | 0250-3301(2001)01-03-0114 |
| 收稿时间： | 4/2/2000 12:00:00 AM |
| 修稿时间： | 2000年4月2日 |
The Sedimentation Rate and Fractional Dimension During Flocculation with Modified Natural Polymer and Polymeric Aluminum Chloride |
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| Ma Wei,Guo Liyan and Xiao Jin.The Sedimentation Rate and Fractional Dimension During Flocculation with Modified Natural Polymer and Polymeric Aluminum Chloride[J].Chinese Journal of Environmental Science,2001,22(1):114-116. |
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| Authors: | Ma Wei Guo Liyan and Xiao Jin |
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| Affiliation: | Dalian Univ. of Tech., Dalian 116024, China. mawei@dlut.edu.cn |
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| Abstract: | The sedimentation rate and fractional dimension of the floc was studied during the process of the organic waste water treatment with modified natural polymer (CMS) and polymeric aluminum chloride (PAC).Irregular garrulous form of the floc was observed with microscope and electron scanning microscope.The results showed that the sedimentation rate was 2.6mm/min with the modified natural polymer (CMS) and 1.7mm/min without CMS in condition of keeping the pH value to 6.86 and added quantity of PAC to 80mg/L.The fractional dimension of the floc Df was calculated to be 1.70 in the best sedimentation rate. |
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| Keywords: | water treatment flocculation modified polymer polymeric aluminum chloride fractional |
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