粉煤灰制备混凝剂及其对黄河水的处理效果

李玉梅; 陈莉荣; 杜明展

环境工程学报

粉煤灰制备混凝剂及其对黄河水的处理效果

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李玉梅, 陈莉荣, 杜明展. 粉煤灰制备混凝剂及其对黄河水的处理效果[J]. 环境工程学报, 2013, 7(4): 1346-1350.

引用本文:

李玉梅, 陈莉荣, 杜明展. 粉煤灰制备混凝剂及其对黄河水的处理效果[J]. 环境工程学报, 2013, 7(4): 1346-1350.

Li Yumei, Chen Lirong, Du Mingzhan. Preparation of coagulant from fly ash and its application in Yellow River water treatment[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1346-1350.

Citation:

Li Yumei, Chen Lirong, Du Mingzhan. Preparation of coagulant from fly ash and its application in Yellow River water treatment[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1346-1350.

粉煤灰制备混凝剂及其对黄河水的处理效果

1.
内蒙古科技大学能源与环境学院,包头 014010
基金项目:
内蒙古自然科学基金资助项目(2010MS0609)

教育部春晖计划项目(Z2009-1-01028)

内蒙古科技大学创新基金项目(2010NC029)
中图分类号: X703.1

Preparation of coagulant from fly ash and its application in Yellow River water treatment

1.
School of Energy and Environment, Inner Mongolia University Science and Technology, Baotou 014010, China
Fund Project:

摘要: 以粉煤灰和铁泥为原料、加入一定量NaCl作助溶剂室温下制备粉煤灰混凝剂,考察酸灰比与酸浓度对Fe3+、Al3+溶出率及混凝剂对黄河水处理效果的影响。结果表明,Fe3+、Al3+的最佳溶出条件为酸灰比3 mL/g、HCl浓度4 mol/L,此时Fe3+溶出率为28.1%,浓度为11.81 g/L;Al3+溶出率为5.2%,浓度为1.86 g/L。粉煤灰混凝剂对黄河水的处理效果在投加量2.38 mL/L、沉降时间30 min、pH 6.2~7.5时最佳,对浊度、SS和CODMn平均去除率分别为89.7%、83.6%和62.3%,优于传统市售混凝剂PAC和FC,Fe3+、Al3+同时存在有利于各自优势的发挥从而提高混凝效果。
- 粉煤灰混凝剂 /
- 黄河水 /
- 浊度 /
- SS /
- CODMn
Abstract: Coagulant was prepared with fly ash and iron mud, adding a certain amount of NaCl as cosolvent at room temperature. Effect of ratio of HCl to fly ash and HCl concentration on Fe3+ and Al3+ dissolution rate and coagulation performance on Yellow River water were investigated. The result showed that the optimal dissolution conditions of Fe3+ and Al3+ were HCl to fly ash ratio of 3 mL/g and HCl concentration of 4 mol/L. At the same time, Fe3+ concentration was 11.81 g/L with dissolution rate of 28.1%. Al3+ concentration was 1.86 g/L with dissolution rate of 5.2%. Furthermore, the optimal coagulation effect to Yellow River water was attained at dosage of 2.38 mL/L, sedimentation time of 30 min, pH 6.2~7.5, and the removal efficiency of turbidity, SS and CODMn could reach about 89.7%, 83.6% and 62.3%, respectively, so the water treatment effect of coagulant here is better than that of PAC and FC from market. AS co-exist of Fe3+ and Al3+ can better play their respective advantages, the coagulation effect can be enhanced.
- fly ash coagulant /
- Yellow River water /
- turbidity /
- SS /
- CODMn

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李玉梅, 陈莉荣, 杜明展. 粉煤灰制备混凝剂及其对黄河水的处理效果[J]. 环境工程学报, 2013, 7(4): 1346-1350.

引用本文:

李玉梅, 陈莉荣, 杜明展. 粉煤灰制备混凝剂及其对黄河水的处理效果[J]. 环境工程学报, 2013, 7(4): 1346-1350.

Li Yumei, Chen Lirong, Du Mingzhan. Preparation of coagulant from fly ash and its application in Yellow River water treatment[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1346-1350.

Citation:

粉煤灰制备混凝剂及其对黄河水的处理效果

1. 内蒙古科技大学能源与环境学院,包头 014010

收稿日期: 2012-06-05

基金项目:

内蒙古自然科学基金资助项目(2010MS0609)

教育部春晖计划项目(Z2009-1-01028)

内蒙古科技大学创新基金项目(2010NC029)

关键词:

粉煤灰混凝剂 /
黄河水 /
浊度 /
SS /
CODMn

摘要: 以粉煤灰和铁泥为原料、加入一定量NaCl作助溶剂室温下制备粉煤灰混凝剂,考察酸灰比与酸浓度对Fe3+、Al3+溶出率及混凝剂对黄河水处理效果的影响。结果表明,Fe3+、Al3+的最佳溶出条件为酸灰比3 mL/g、HCl浓度4 mol/L,此时Fe3+溶出率为28.1%,浓度为11.81 g/L;Al3+溶出率为5.2%,浓度为1.86 g/L。粉煤灰混凝剂对黄河水的处理效果在投加量2.38 mL/L、沉降时间30 min、pH 6.2~7.5时最佳,对浊度、SS和CODMn平均去除率分别为89.7%、83.6%和62.3%,优于传统市售混凝剂PAC和FC,Fe3+、Al3+同时存在有利于各自优势的发挥从而提高混凝效果。

English Abstract

Preparation of coagulant from fly ash and its application in Yellow River water treatment

1. School of Energy and Environment, Inner Mongolia University Science and Technology, Baotou 014010, China

Received Date: 2012-06-05

Fund Project:

Keywords:

Abstract: Coagulant was prepared with fly ash and iron mud, adding a certain amount of NaCl as cosolvent at room temperature. Effect of ratio of HCl to fly ash and HCl concentration on Fe3+ and Al3+ dissolution rate and coagulation performance on Yellow River water were investigated. The result showed that the optimal dissolution conditions of Fe3+ and Al3+ were HCl to fly ash ratio of 3 mL/g and HCl concentration of 4 mol/L. At the same time, Fe3+ concentration was 11.81 g/L with dissolution rate of 28.1%. Al3+ concentration was 1.86 g/L with dissolution rate of 5.2%. Furthermore, the optimal coagulation effect to Yellow River water was attained at dosage of 2.38 mL/L, sedimentation time of 30 min, pH 6.2~7.5, and the removal efficiency of turbidity, SS and CODMn could reach about 89.7%, 83.6% and 62.3%, respectively, so the water treatment effect of coagulant here is better than that of PAC and FC from market. AS co-exist of Fe3+ and Al3+ can better play their respective advantages, the coagulation effect can be enhanced.

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粉煤灰制备混凝剂及其对黄河水的处理效果

Preparation of coagulant from fly ash and its application in Yellow River water treatment

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粉煤灰制备混凝剂及其对黄河水的处理效果

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Preparation of coagulant from fly ash and its application in Yellow River water treatment

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