化学-混凝沉淀处理含氟含重金属废水研究

周芬; 汪晓军

环境工程学报

化学-混凝沉淀处理含氟含重金属废水研究

周芬, 汪晓军. 化学-混凝沉淀处理含氟含重金属废水研究[J]. 环境工程学报, 2012, 6(2): 445-450.

引用本文:

周芬, 汪晓军. 化学-混凝沉淀处理含氟含重金属废水研究[J]. 环境工程学报, 2012, 6(2): 445-450.

Zhou Fen, Wang Xiaojun. Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process[J]. Chinese Journal of Environmental Engineering, 2012, 6(2): 445-450.

Citation:

Zhou Fen, Wang Xiaojun. Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process[J]. Chinese Journal of Environmental Engineering, 2012, 6(2): 445-450.

化学-混凝沉淀处理含氟含重金属废水研究

周芬¹,
汪晓军¹

1.
华南理工大学环境科学与工程学院，广州 510006
基金项目:
国家自然科学基金资助项目（51078149）

广州市科技计划资助项目（2009Z1-E751）
中图分类号: X703

Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process

Zhou Fen¹,
Wang Xiaojun¹

1.
College of Environmental Science & Engineering， South China University of Technology， Guangzhou 510006， China
Fund Project:

摘要: 为解决某铝材电镀工业园含氟含重金属废水达标排放的问题，研究了化学混凝沉淀法同时处理该废水中氟与金属的效果及影响因素，采用正交和单因素实验确定了最佳工艺条件。结果表明，当CaCl2投加量与废水中氟离子摩尔比为5∶1（即CaCl2质量4 782 mg/L），聚氯化铝（PAC）用量为500 mg/L，pH为9.5，聚丙烯酰胺（PAM）用量2 mg/L时，出水中残留F离子浓度可降至8 mg/L，Cu2+、Ni2+、Cr6+和Zn2+出水浓度分别降至0.05、0.07、0.3和0.1 mg/L，出水能达到《水污染物排放限值》（DB44/26-2001）第二时段一级标准，且最为经济。
- 含氟废水 /
- 含重金属废水 /
- 化学-混凝沉淀
Abstract: In order to meet the discharge standard of wastewater from an aluminum electroplating factory， the performances and impact factors by using chemical coagulation process were studied for removing fluoride and heavy metals simultaneously. The orthogonal and single factor experiments were used to determine the optimal operation conditions. The results show that when the molar ratio of CaCl and fluoride is 5∶1( the dosage of CaCl2 is 4 782 mg/L)， the dosage of PAC is 500 mg/L and PAM is 2 mg/L， the pH value is adjusted to 9.5，the content of F- and Cu2+，Ni2+，Cr6+，Zn2+ in effluent can be reduced to 8， 0.05， 0.07， 0.3 and 0.1 mg/L， respectively. The effluent can reach the first level criteria of the second period specified in water pollution discharge limits (DB44/26-2001).
- fluoride wastewater /
- heavy metal wastewater /
- chemical coagulation

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周芬, 汪晓军. 化学-混凝沉淀处理含氟含重金属废水研究[J]. 环境工程学报, 2012, 6(2): 445-450.

引用本文:

周芬, 汪晓军. 化学-混凝沉淀处理含氟含重金属废水研究[J]. 环境工程学报, 2012, 6(2): 445-450.

Zhou Fen, Wang Xiaojun. Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process[J]. Chinese Journal of Environmental Engineering, 2012, 6(2): 445-450.

Citation:

Zhou Fen, Wang Xiaojun. Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process[J]. Chinese Journal of Environmental Engineering, 2012, 6(2): 445-450.

化学-混凝沉淀处理含氟含重金属废水研究

周芬¹,
汪晓军¹

1. 华南理工大学环境科学与工程学院，广州 510006

收稿日期: 2011-03-07

基金项目:

国家自然科学基金资助项目（51078149）

广州市科技计划资助项目（2009Z1-E751）

关键词:

摘要: 为解决某铝材电镀工业园含氟含重金属废水达标排放的问题，研究了化学混凝沉淀法同时处理该废水中氟与金属的效果及影响因素，采用正交和单因素实验确定了最佳工艺条件。结果表明，当CaCl2投加量与废水中氟离子摩尔比为5∶1（即CaCl2质量4 782 mg/L），聚氯化铝（PAC）用量为500 mg/L，pH为9.5，聚丙烯酰胺（PAM）用量2 mg/L时，出水中残留F离子浓度可降至8 mg/L，Cu2+、Ni2+、Cr6+和Zn2+出水浓度分别降至0.05、0.07、0.3和0.1 mg/L，出水能达到《水污染物排放限值》（DB44/26-2001）第二时段一级标准，且最为经济。

English Abstract

Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process

Zhou Fen¹,
Wang Xiaojun¹

1. College of Environmental Science & Engineering， South China University of Technology， Guangzhou 510006， China

Received Date: 2011-03-07

Fund Project:

Keywords:

Abstract: In order to meet the discharge standard of wastewater from an aluminum electroplating factory， the performances and impact factors by using chemical coagulation process were studied for removing fluoride and heavy metals simultaneously. The orthogonal and single factor experiments were used to determine the optimal operation conditions. The results show that when the molar ratio of CaCl and fluoride is 5∶1( the dosage of CaCl2 is 4 782 mg/L)， the dosage of PAC is 500 mg/L and PAM is 2 mg/L， the pH value is adjusted to 9.5，the content of F- and Cu2+，Ni2+，Cr6+，Zn2+ in effluent can be reduced to 8， 0.05， 0.07， 0.3 and 0.1 mg/L， respectively. The effluent can reach the first level criteria of the second period specified in water pollution discharge limits (DB44/26-2001).

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化学-混凝沉淀处理含氟含重金属废水研究

Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process

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化学-混凝沉淀处理含氟含重金属废水研究

English Abstract

Study on treatment of wastewater containing fluoride and heavy metals by chemical coagulation process

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