混凝工艺去除合流污水中有机物及营养元素

黄天寅; 李宁; 夏四清

环境工程学报

混凝工艺去除合流污水中有机物及营养元素

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黄天寅, 李宁, 夏四清. 混凝工艺去除合流污水中有机物及营养元素[J]. 环境工程学报, 2009, 3(9): 1579-1584.

引用本文:

黄天寅, 李宁, 夏四清. 混凝工艺去除合流污水中有机物及营养元素[J]. 环境工程学报, 2009, 3(9): 1579-1584.

Huang Tianyin, Li Ning, Xia Siqing. Organics and nutrients removal in combined wastewater by coagulation and flocculation process[J]. Chinese Journal of Environmental Engineering, 2009, 3(9): 1579-1584.

Citation:

Huang Tianyin, Li Ning, Xia Siqing. Organics and nutrients removal in combined wastewater by coagulation and flocculation process[J]. Chinese Journal of Environmental Engineering, 2009, 3(9): 1579-1584.

混凝工艺去除合流污水中有机物及营养元素

1.
苏州科技学院环境科学与工程系，苏州 215011
2.
江苏大学环境学院，镇江 212013
3.
同济大学污染控制与资源化研究国家重点实验室，上海 200092
基金项目:
建设部研究开发资助项目（2008-K6-4）
中图分类号: X703.1

Organics and nutrients removal in combined wastewater by coagulation and flocculation process

1.
Department of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
2.
School of the Environment, Jiangsu University, Zhenjiang 212013, China
3.
State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
Fund Project:

摘要: 通过系列杯罐试验混凝处理合流污水，采用硫酸铝（Al2(SO4)3）、硫酸铁（Fe2(SO4)3）、聚合氯化铝（PAC）和聚合氯化铝铁（PAFC）4种混凝剂均能有效去除污水中的 TP、PO3-4-P、SS和COD。聚合金属盐（PAC和PAFC）混凝处理效果优于金属盐（Al2(SO4)3和Fe2(SO4)3），达到相同的处理效果的投加量明显低于后者。助凝剂采用聚丙烯酰胺（PAM）、聚乙烯醇（PVA）、自制的高分子聚合物（AN）和活化硅酸（AS），在保持较低混凝剂投加量的条件下可明显提高污水处理效果；添加助凝剂对强化PO3-4-P的去除作用不明显，PO3-4-P的去除仅与混凝剂的投加量相关。混凝剂和助凝剂对污水中NH3-N的去除作用相对不显著。SS去除率随混凝剂投加量的变化趋势说明混凝的机理较为复杂，可能存在多种混凝机理共同作用。
- 合流污水 /
- 混凝 /
- 絮凝 /
- 混凝剂 /
- 助凝剂 /
- 有机物 /
- 营养元素
Abstract: The removal efficiency of inorganics, organics and nutrients of a combined sewage were studied by the coagulationflocculation process in jar tests. Suspended solid (SS), chemical oxygen demand (COD), total phosphorus (TP) and orthophosphate (PO3-4-P) in the combined wastewater could be effectively removed using flocculants, such as aluminum sulfate (Al2(SO4)3), ferric sulfate (Fe2(SO4)3), polyaluminium chloride (PAC) and polyaluminiumferric chloride (PAFC). Polymetal salt flocculants (PAC and PAFC) had more effective removal efficiency of pollutants than metal salt ones (Al2(SO4)3 and Fe2(SO4)3), which means that the former dosage is less than the later with the same removal efficiency of pollutants. Flocculant aids, such as cationic polyacrylamide (PAM), polyvinyl alcohol (PVA), a new polyelectrolyte made in laboratory (AN) and activated silica (AS), dramatically enhanced the coagulationflocculation process at relatively low coagulant dosage. The removal of PO3-4-P only depended on the coagulant dosage; and the flocculant aids had marginal effect on the process. The flocculants and flocculant aids didn’t significantly improve NH3-N removal efficiency. The trend of SS removal efficiencies indicated that the flocculation mechanism is considerably complex and could present synergic flocculation mechanisms in the process.
- combined sewage /
- coagulation /
- flocculation /
- flocculant /
- flocculant aids /
- organics /
- nutrients

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黄天寅, 李宁, 夏四清. 混凝工艺去除合流污水中有机物及营养元素[J]. 环境工程学报, 2009, 3(9): 1579-1584.

引用本文:

黄天寅, 李宁, 夏四清. 混凝工艺去除合流污水中有机物及营养元素[J]. 环境工程学报, 2009, 3(9): 1579-1584.

Citation:

混凝工艺去除合流污水中有机物及营养元素

1. 苏州科技学院环境科学与工程系，苏州 215011
2. 江苏大学环境学院，镇江 212013
3. 同济大学污染控制与资源化研究国家重点实验室，上海 200092

收稿日期: 2009-07-08

基金项目:

建设部研究开发资助项目（2008-K6-4）

关键词:

摘要: 通过系列杯罐试验混凝处理合流污水，采用硫酸铝（Al2(SO4)3）、硫酸铁（Fe2(SO4)3）、聚合氯化铝（PAC）和聚合氯化铝铁（PAFC）4种混凝剂均能有效去除污水中的 TP、PO3-4-P、SS和COD。聚合金属盐（PAC和PAFC）混凝处理效果优于金属盐（Al2(SO4)3和Fe2(SO4)3），达到相同的处理效果的投加量明显低于后者。助凝剂采用聚丙烯酰胺（PAM）、聚乙烯醇（PVA）、自制的高分子聚合物（AN）和活化硅酸（AS），在保持较低混凝剂投加量的条件下可明显提高污水处理效果；添加助凝剂对强化PO3-4-P的去除作用不明显，PO3-4-P的去除仅与混凝剂的投加量相关。混凝剂和助凝剂对污水中NH3-N的去除作用相对不显著。SS去除率随混凝剂投加量的变化趋势说明混凝的机理较为复杂，可能存在多种混凝机理共同作用。

English Abstract

Organics and nutrients removal in combined wastewater by coagulation and flocculation process

1. Department of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
2. School of the Environment, Jiangsu University, Zhenjiang 212013, China
3. State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China

Received Date: 2009-07-08

Fund Project:

Keywords:

Abstract: The removal efficiency of inorganics, organics and nutrients of a combined sewage were studied by the coagulationflocculation process in jar tests. Suspended solid (SS), chemical oxygen demand (COD), total phosphorus (TP) and orthophosphate (PO3-4-P) in the combined wastewater could be effectively removed using flocculants, such as aluminum sulfate (Al2(SO4)3), ferric sulfate (Fe2(SO4)3), polyaluminium chloride (PAC) and polyaluminiumferric chloride (PAFC). Polymetal salt flocculants (PAC and PAFC) had more effective removal efficiency of pollutants than metal salt ones (Al2(SO4)3 and Fe2(SO4)3), which means that the former dosage is less than the later with the same removal efficiency of pollutants. Flocculant aids, such as cationic polyacrylamide (PAM), polyvinyl alcohol (PVA), a new polyelectrolyte made in laboratory (AN) and activated silica (AS), dramatically enhanced the coagulationflocculation process at relatively low coagulant dosage. The removal of PO3-4-P only depended on the coagulant dosage; and the flocculant aids had marginal effect on the process. The flocculants and flocculant aids didn’t significantly improve NH3-N removal efficiency. The trend of SS removal efficiencies indicated that the flocculation mechanism is considerably complex and could present synergic flocculation mechanisms in the process.

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混凝工艺去除合流污水中有机物及营养元素

Organics and nutrients removal in combined wastewater by coagulation and flocculation process

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混凝工艺去除合流污水中有机物及营养元素

English Abstract

Organics and nutrients removal in combined wastewater by coagulation and flocculation process

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