壳聚糖改性粘土对高藻水中藻类的絮凝去除

刘恋; 陈兵; 王志红

环境工程学报

壳聚糖改性粘土对高藻水中藻类的絮凝去除

, ,

刘恋, 陈兵, 王志红. 壳聚糖改性粘土对高藻水中藻类的絮凝去除[J]. 环境工程学报, 2010, 4(6): 1296-1300.

引用本文:

刘恋, 陈兵, 王志红. 壳聚糖改性粘土对高藻水中藻类的絮凝去除[J]. 环境工程学报, 2010, 4(6): 1296-1300.

Liu Lian, Chen Bing, Wang Zhihong. Flocculation and removal of algae in algae-bloom water by chitosan-modified clays[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1296-1300.

Citation:

Liu Lian, Chen Bing, Wang Zhihong. Flocculation and removal of algae in algae-bloom water by chitosan-modified clays[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1296-1300.

壳聚糖改性粘土对高藻水中藻类的絮凝去除

1.
华南理工大学环境科学与工程学院，广州 510006；2. 华南理工大学工业聚集区污染控制与生态修复教育部重点实验室，广州 510006
3.
广东工业大学土木与交通学院，广州 510006
基金项目:
广东省科技攻关资助项目（2007B031700007）

广东省教育厅自然科学基金重点资助项目(05J011)

广东省自然科学基金团队项目（9351064101000001）
中图分类号: X703

Flocculation and removal of algae in algae-bloom water by chitosan-modified clays

3.
Faculty of Civil and Transportation Engineering, Guangzhou University of Technology, Guangzhou 510006, China
Fund Project:

摘要: 对壳聚糖改性粘土用于天然高藻水中藻类的絮凝去除进行了研究。实验表明，经壳聚糖改性后的粘土对高藻水中藻细胞有较好的去除效果。粘土的种类对除藻效果有一定影响，其中以高粘凹凸棒石为最佳，其最佳投加量为66 mg/L(壳聚糖6 mg/L)，此时的叶绿素去除率达到95.45%。相比单独投加壳聚糖，粘土的加入增加了絮体密实度，减少了絮体体积，并使絮体分布更均匀。粘土的粒径对絮凝效果基本没有影响，粒径范围在25～74 μm时，改性粘土对藻细胞的凝聚效果是一致的。经壳聚糖改性的粘土在酸性条件下絮凝效果较好，当pH值大于7时，其絮凝能力迅速下降。
- 壳聚糖 /
- 粘土 /
- 高藻水
Abstract: The removal of algae in algae-bloom raw water by chitosanmodified clay flocculation was studied. The algal removal efficiency was greatly improved after the modification of the clays. Among the clays studied, high viscosity attapulgite was most efficient toward algae removal. The optimum total loading of high viscosity attapulgite was 66 mg/L (containing 6 mg/L chitosan) and the corresponding chlorophyll-α removal rate was 95.45%. Compared with chitosan, the chitosanmodified clays increased flocs density, reduced flocs volume, and improved flocs distribution. The chitosan-modified clays with particle size ranging from 25 μm to 74 μm had almost the same algal removal efficiency, indicating particle size of clays had little influence on the removal of algae. The algal removal efficiency was higher under acidic conditions, while declined rapidly with the increase of pH under alkaline conditions.
- chitosan /
- clay /
- algae-bloom water

点击查看大图

计量

文章访问数: 1869
HTML全文浏览数: 955
PDF下载数: 1010
施引文献: 0

刘恋, 陈兵, 王志红. 壳聚糖改性粘土对高藻水中藻类的絮凝去除[J]. 环境工程学报, 2010, 4(6): 1296-1300.

引用本文:

刘恋, 陈兵, 王志红. 壳聚糖改性粘土对高藻水中藻类的絮凝去除[J]. 环境工程学报, 2010, 4(6): 1296-1300.

Liu Lian, Chen Bing, Wang Zhihong. Flocculation and removal of algae in algae-bloom water by chitosan-modified clays[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1296-1300.

Citation:

Liu Lian, Chen Bing, Wang Zhihong. Flocculation and removal of algae in algae-bloom water by chitosan-modified clays[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1296-1300.

壳聚糖改性粘土对高藻水中藻类的絮凝去除

1. 华南理工大学环境科学与工程学院，广州 510006；2. 华南理工大学工业聚集区污染控制与生态修复教育部重点实验室，广州 510006
3. 广东工业大学土木与交通学院，广州 510006

收稿日期: 2009-10-24

基金项目:

广东省科技攻关资助项目（2007B031700007）

广东省教育厅自然科学基金重点资助项目(05J011)

广东省自然科学基金团队项目（9351064101000001）

关键词:

壳聚糖 /
粘土 /
高藻水

摘要: 对壳聚糖改性粘土用于天然高藻水中藻类的絮凝去除进行了研究。实验表明，经壳聚糖改性后的粘土对高藻水中藻细胞有较好的去除效果。粘土的种类对除藻效果有一定影响，其中以高粘凹凸棒石为最佳，其最佳投加量为66 mg/L(壳聚糖6 mg/L)，此时的叶绿素去除率达到95.45%。相比单独投加壳聚糖，粘土的加入增加了絮体密实度，减少了絮体体积，并使絮体分布更均匀。粘土的粒径对絮凝效果基本没有影响，粒径范围在25～74 μm时，改性粘土对藻细胞的凝聚效果是一致的。经壳聚糖改性的粘土在酸性条件下絮凝效果较好，当pH值大于7时，其絮凝能力迅速下降。

English Abstract

Flocculation and removal of algae in algae-bloom water by chitosan-modified clays

3. Faculty of Civil and Transportation Engineering, Guangzhou University of Technology, Guangzhou 510006, China

Received Date: 2009-10-24

Fund Project:

Keywords:

chitosan /
clay /
algae-bloom water

Abstract: The removal of algae in algae-bloom raw water by chitosanmodified clay flocculation was studied. The algal removal efficiency was greatly improved after the modification of the clays. Among the clays studied, high viscosity attapulgite was most efficient toward algae removal. The optimum total loading of high viscosity attapulgite was 66 mg/L (containing 6 mg/L chitosan) and the corresponding chlorophyll-α removal rate was 95.45%. Compared with chitosan, the chitosanmodified clays increased flocs density, reduced flocs volume, and improved flocs distribution. The chitosan-modified clays with particle size ranging from 25 μm to 74 μm had almost the same algal removal efficiency, indicating particle size of clays had little influence on the removal of algae. The algal removal efficiency was higher under acidic conditions, while declined rapidly with the increase of pH under alkaline conditions.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

壳聚糖改性粘土对高藻水中藻类的絮凝去除

Flocculation and removal of algae in algae-bloom water by chitosan-modified clays

计量

出版历程

壳聚糖改性粘土对高藻水中藻类的絮凝去除

English Abstract

Flocculation and removal of algae in algae-bloom water by chitosan-modified clays

全文HTML

目录

全文HTML