| 红土复合聚合氯化铝以及三氯化铁去除水华藻类的研究 |
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| 引用本文： | 何维,朱毅,肖强华,杨骏,雷腊梅,韩博平,张渊明.红土复合聚合氯化铝以及三氯化铁去除水华藻类的研究[J].生态环境,2010,19(3):550-555. |
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| 作者姓名： | 何维 朱毅 肖强华 杨骏 雷腊梅 韩博平 张渊明 |
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| 作者单位： | 1. 暨南大学生命科技学院化学系,广东,广州,510632
2. 暨南大学生命科技学院水生生物研究所,广东,广州,510632;广东省高校水体富营养化与赤潮防治重点实验室,广东,广州,510632 |
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| 基金项目： | 国家863项目，珠海市科技计划项目 |
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| 摘 要： | 采用红土复合聚合氯化铝（PAC）以及三氯化铁（FeCl3）制得的复合絮凝剂对水样中的藻类絮凝沉降效果进行了研究。结果表明，与PAC复合FeCl3混凝剂不同，红土的加入可增加絮体的密实度，加快絮体沉降速度，沉淀后的絮体在微扰动下不再漂浮上升从而有效提高除藻效果。采用正交试验探讨了复合絮凝剂除藻的最优配比，用混凝剂（红土：PAC：FeCl3=50mg：8．75mg：17．5mg）处理水样，1h后水样浊度由22．35NTU降至1．85NTU，浊度去除率为91．72％。讨论了温度、pH值等因素对除藻效果的影响，并对除藻机理进行了初步的探讨。
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| 关 键 词： | 聚合氯化铝 三氯化铁 红土 絮凝 藻类 |
Study of removal of water bloom cells by red earth modified with polyaluminium chloride and ferric chloride |
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| HE Wei,ZHU Yi,XIAO Qianghua,YANG Jun,LEI Lamei,HAN Boping,ZHANG Yuanming.Study of removal of water bloom cells by red earth modified with polyaluminium chloride and ferric chloride[J].Ecology and Environmnet,2010,19(3):550-555. |
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| Authors: | HE Wei ZHU Yi XIAO Qianghua YANG Jun LEI Lamei HAN Boping ZHANG Yuanming |
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| Institution: | 1. Department of Chemistry, College of Life Science and Technology, Guangzhou 510632, China ; 2. Institute of Hydrobiology ,College of Life Science and Technology, Guangzhou 510632, China; 3. Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China) |
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| Abstract: | The efficiency of removing algae in water sources by using red earth modified with polyaluminium chioride(PAC) and ferric chloride(FeCl_3) is studied. The results indicated that red earth not only greatly increases the density of flocculan, but also ac-celerates its sedimentation rate. And precipitated flocculan will not float even when gently stired. Orthogonal experiments were used to explore the best ratio of the modified flocenlan. The turbidity of water droped from 22.35 NTU to 1.85 NTU within 1h, and the removal efficiency of turbidity was 91.72% by using modified flocculan (red earth/PAC/FeCl_3= 50 mg/8.75 mg/17.5 mg)into water. The influences of temperature and pH were studied, and the mechanism of removing algae was preliminarily discussed. |
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| Keywords: | PAC FeCl_3 red earth flocculation |
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