Treatment of algae bloom water using &#183;OH based on conventional drinking water process

BAI Mindong; LI Haiyan; MAN Hualin; HUANG Mengbin; ZHENG Wu; TIAN Yiping; ZHANG Zhitao

doi:10.12030/j.cjee.201611225

2017 Volume 11 Issue 9

Article Contents

Abstract

References

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BAI Mindong, LI Haiyan, MAN Hualin, HUANG Mengbin, ZHENG Wu, TIAN Yiping, ZHANG Zhitao. Treatment of algae bloom water using ·OH based on conventional drinking water process[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 4897-4902. doi: 10.12030/j.cjee.201611225

Citation:

BAI Mindong, LI Haiyan, MAN Hualin, HUANG Mengbin, ZHENG Wu, TIAN Yiping, ZHANG Zhitao. Treatment of algae bloom water using ·OH based on conventional drinking water process[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 4897-4902. doi: 10.12030/j.cjee.201611225

Treatment of algae bloom water using ·OH based on conventional drinking water process

1.
Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, College of Environment and Ecology, Xiamen University, Xiamen 361102, China
2.
Environmental Engineering Institute, Dalian Maritime University, Dalian 116026, China

Received Date: 17/01/2017
Accepted Date: 30/11/2016
Available Online: 26/08/2017

Fund Project:

Abstract

Due to the increasing eutrophication in China, harmful algae blooms often occur in water body periodically, which poses serious threats to drinking water safety. Using a strong ionization discharge technology at atmosphere pressure, ·OH was used to remove algae bloom. Other conventional process such as coagulation, sedimentation and sand filtration were applied respectively in the Lianban Water Plant in Xiamen (China). The total reaction time required in the three water processes was only 4.5 s. When the total reactive oxidant (TRO) concentration injected to algae bloom water was 1.8 mg·L-1, the algae content was decreased by ·OH from 25.3×104 cells·mL-1 to 800 cells·mL-1. When the TRO that was injected into coagulation, sedimentation and sand filtration water achieved 0.6 mg·L-1 and 0.2 mg·L-1, respectively, the algae contents were not detected (ND) in treated effluents. At the same time, water quality in CODMn, TOC and UV254 were decreased and the disinfection by-products(DBPs) such as, trihalomethanes (THMs) concentration was lower than 8 μg·L-1 in treated effluents. The treated effluent, resulting from this technology, met the requirement of the National Drinking Water Standards (GB 5479-2006). Therefore, ·OH was effective and safe to remove freshwater algae without further treatment being required.
- hydroxyl radicals,
- algae bloom water,
- disinfection by-products

References

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[2]	ZHANG R, YUAN D X, LIU B M. Kinetics and products of ozonation of CI Reactive Red 195 in a semi-batch reactor[J].Chinese Chemical Lefters, 2015, 26(1):93-99 Google Scholar Pub Med
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[5]	洪伟辰, 白敏冬, 满化林,等. 气浮-·OH强氧化组合工艺处理高藻水的研究[J]. 中国环境科学, 2015, 35(12):3634-3639 Google Scholar Pub Med
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Treatment of algae bloom water using ·OH based on conventional drinking water process

Received Date: 17/01/2017

Accepted Date: 30/11/2016

Available Online: 26/08/2017

Fund Project:

Key words:

Abstract: Due to the increasing eutrophication in China, harmful algae blooms often occur in water body periodically, which poses serious threats to drinking water safety. Using a strong ionization discharge technology at atmosphere pressure, ·OH was used to remove algae bloom. Other conventional process such as coagulation, sedimentation and sand filtration were applied respectively in the Lianban Water Plant in Xiamen (China). The total reaction time required in the three water processes was only 4.5 s. When the total reactive oxidant (TRO) concentration injected to algae bloom water was 1.8 mg·L-1, the algae content was decreased by ·OH from 25.3×104 cells·mL-1 to 800 cells·mL-1. When the TRO that was injected into coagulation, sedimentation and sand filtration water achieved 0.6 mg·L-1 and 0.2 mg·L-1, respectively, the algae contents were not detected (ND) in treated effluents. At the same time, water quality in CODMn, TOC and UV254 were decreased and the disinfection by-products(DBPs) such as, trihalomethanes (THMs) concentration was lower than 8 μg·L-1 in treated effluents. The treated effluent, resulting from this technology, met the requirement of the National Drinking Water Standards (GB 5479-2006). Therefore, ·OH was effective and safe to remove freshwater algae without further treatment being required.

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Treatment of algae bloom water using ·OH based on conventional drinking water process

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