Occurance and control of manganese in a large scale water treatment plant

被引：13

作者：

Chen, Youjun ^{[1
,2
]}

Xiao, Feng ^{[1
]}

Liu, Yongkang ^{[2
]}

Wang, Dongsheng ^{[1
]}

Yang, Ming ^{[1
]}

Bai, Hua ^{[2
]}

Zhang, Jiong ^{[3
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China

[2] Beijing Waterworks Grp Co Ltd, Beijing 100031, Peoples R China

[3] Beijing Gen Municipal Engn Design & Res Inst, Beijing 100082, Peoples R China

来源：

FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING | 2015年 / 9卷 / 01期

关键词：

manganese release; dissolved oxygen; settling filtration; pre-oxidation; NATURAL ORGANIC-MATTER; DRINKING-WATER; EUTROPHIC WATER; REMOVAL; MN; FE; ADSORPTION; ALUMINUM;

D O I：

10.1007/s11783-014-0637-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

The continuous variations of dissolved oxygen (DO), manganese (Mn), pH, and their effect on manganese removal by different water treatment processes are investigated. The results show that the declined DO concentration and pH value in the bottom of reservoir results in the increasing release of Mn from sediment to source water. Manganese concentration increased from 0.1 to 0.4 mg.L-1 under the condition that DO concentration decreased from 12.0 to 2.0 mg.L-1 in raw water. The different water treatment processes exhibited different efficiency on manganese removal. The processes with recycling of the suspended sludge, low elevation velocity in settling tank and slow filter rate, will benefit the manganese removal. During a high release of manganese in raw water, traditional coagulation-sedimentation and filtration could not completely remove Mn, although granular activated carbon filtration (GAC) had been applied. At that case, preoxidation with chlorine or potassium permanganate (KMnO4) was necessary to address the high manganese concentration.

引用

页码：66 / 72

页数：7

共 24 条

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