纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究

刘春柳; 李冬梅; 叶挺进; 任毅; 黄辉; 何娜

环境工程学报

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刘春柳, 李冬梅, 叶挺进, 任毅, 黄辉, 何娜. 纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究[J]. 环境工程学报, 2011, 5(11): 2503-2507.

引用本文:

刘春柳, 李冬梅, 叶挺进, 任毅, 黄辉, 何娜. 纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究[J]. 环境工程学报, 2011, 5(11): 2503-2507.

Liu Chunliu, Li Dongmei, Ye Tingjin, Ren Yi, Huang Hui, He Na. Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2503-2507.

Citation:

Liu Chunliu, Li Dongmei, Ye Tingjin, Ren Yi, Huang Hui, He Na. Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2503-2507.

纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究

1.
广东工业大学土木与交通工程学院，广州 510006； 2.深圳市开天源自动化工程有限公司，深圳 518030
3.
佛山市水业集团有限公司水质研发中心，佛山 528000
4.
中水珠江规划勘测设计有限公司，广州 510610
基金项目:
粤港关键领域重点突破项目(2010Z524)

广东省科技计划项目(2010B030900001)

国家自然科学基金资助项目（51108094）
中图分类号: X131.2, TV149, TU991.22

Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N

1.
Faculty of Civil and Transportation Engineering Construction，Guangdong University of Technology，Guangzhou 510006，China；2. KITEWAY Automation Engineering Co.，Ltd of ShenZhen，ShenZhen 518030，China
3.
Water research and development，Foshan Water Group Co.，Ltd.，Foshan 528000，China
4.
Water Planning Survey and Design in Pearl River Co.，Ltd. Guangzhou 510610，China
Fund Project:

摘要: 以聚合氯化铝PAC为混凝剂，纳米SiO2为助凝剂，对含有下列微污染物：十二烷基硫酸钠（SDS）、氨氮（NH3-N）或腐植酸（HA）的高岭土悬浊液进行混凝沉降实验。借助形态学理论、电镜观察与图像分析技术，研究纳米SiO2对微污染物的助凝作用效果、吸附特性与絮体结构的形态学特征。结果表明：（1）在含有HA、SDS、NH3-N的模拟原水中，污染物去除率与浊度去除率的相关性随污染物分子量的增大而增强；（2）纳米SiO
- 聚合氯化铝 /
- 纳米SiO2 /
- 助凝作用效果 /
- 十二烷基硫酸钠 /
- 氨氮 /
- 腐植酸 /
- 形态学特性
Abstract: For kaolin suspension containing dissolved low concentration micro-pollutants-sodium dodecyl sulfate(SDS)，ammonia nitrogen (NH3-N)，and humic acid(HA)，coagulation experiments and quiescent settling experiments were done by adding polyalu minium chloride (PAC) and a new water treatment chemical-silica dioxide nano-particles respectively. The flocculation aid mechanism and action efficiencies，adsorption properties and morphological characteristics of flocs fractal structures were investigated by using morphological theory，electron microscopic observation and image analysis technology. The results showed that the removal rate correlation between micro-pollutants and turbidity enhances with molecular weight increment in simulating raw water containing HA，SDS or NH3-N. Adsorption efficiencies of the flocculant aid-silica dioxide nano-particles to micro-pollutant (HA，SDS or NH3-N ) reduced with the decrease of molecular weight. The flocculant aid-silica dioxide nano-particles could improve the removal rate of PAC to HA，SDS or NH3-N by 40%~50%，20%~30% or 10%~15%，respectively. The flocs had a bigger size in suspension and an increased effective mass density and settling velocity，and the value of fractal dimension increased.
- medical waste /
- mass and heat transfer /
- model /

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刘春柳, 李冬梅, 叶挺进, 任毅, 黄辉, 何娜. 纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究[J]. 环境工程学报, 2011, 5(11): 2503-2507.

引用本文:

刘春柳, 李冬梅, 叶挺进, 任毅, 黄辉, 何娜. 纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究[J]. 环境工程学报, 2011, 5(11): 2503-2507.

Citation:

Liu Chunliu, Li Dongmei, Ye Tingjin, Ren Yi, Huang Hui, He Na. Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2503-2507.

纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究

1. 广东工业大学土木与交通工程学院，广州 510006； 2.深圳市开天源自动化工程有限公司，深圳 518030
3. 佛山市水业集团有限公司水质研发中心，佛山 528000
4. 中水珠江规划勘测设计有限公司，广州 510610

收稿日期: 2010-06-30

基金项目:

粤港关键领域重点突破项目(2010Z524)

广东省科技计划项目(2010B030900001)

国家自然科学基金资助项目（51108094）

关键词:

摘要: 以聚合氯化铝PAC为混凝剂，纳米SiO2为助凝剂，对含有下列微污染物：十二烷基硫酸钠（SDS）、氨氮（NH3-N）或腐植酸（HA）的高岭土悬浊液进行混凝沉降实验。借助形态学理论、电镜观察与图像分析技术，研究纳米SiO2对微污染物的助凝作用效果、吸附特性与絮体结构的形态学特征。结果表明：（1）在含有HA、SDS、NH3-N的模拟原水中，污染物去除率与浊度去除率的相关性随污染物分子量的增大而增强；（2）纳米SiO

English Abstract

Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N

1. Faculty of Civil and Transportation Engineering Construction，Guangdong University of Technology，Guangzhou 510006，China；2. KITEWAY Automation Engineering Co.，Ltd of ShenZhen，ShenZhen 518030，China
3. Water research and development，Foshan Water Group Co.，Ltd.，Foshan 528000，China
4. Water Planning Survey and Design in Pearl River Co.，Ltd. Guangzhou 510610，China

Received Date: 2010-06-30

Fund Project:

Keywords:

medical waste /
mass and heat transfer /
model /
/
/
/

Abstract: For kaolin suspension containing dissolved low concentration micro-pollutants-sodium dodecyl sulfate(SDS)，ammonia nitrogen (NH3-N)，and humic acid(HA)，coagulation experiments and quiescent settling experiments were done by adding polyalu minium chloride (PAC) and a new water treatment chemical-silica dioxide nano-particles respectively. The flocculation aid mechanism and action efficiencies，adsorption properties and morphological characteristics of flocs fractal structures were investigated by using morphological theory，electron microscopic observation and image analysis technology. The results showed that the removal rate correlation between micro-pollutants and turbidity enhances with molecular weight increment in simulating raw water containing HA，SDS or NH3-N. Adsorption efficiencies of the flocculant aid-silica dioxide nano-particles to micro-pollutant (HA，SDS or NH3-N ) reduced with the decrease of molecular weight. The flocculant aid-silica dioxide nano-particles could improve the removal rate of PAC to HA，SDS or NH3-N by 40%~50%，20%~30% or 10%~15%，respectively. The flocs had a bigger size in suspension and an increased effective mass density and settling velocity，and the value of fractal dimension increased.

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纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究

Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N

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纳米SiO2对微污染物HA、SDS及NH3-N的助凝特性研究

English Abstract

Study on flocculation aid characteristics of silica dioxide nano-particles to micro-pollutants HA，SDS and NH3-N

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