Selective separation and recovery of manganese from manganese-bearing wastewater using carbon dioxide

MEI Ying; XUE Yuhua; YE Hengpeng; DU Dongyun

doi:10.11949/j.issn.0438-1157.20161737

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Selective separation and recovery of manganese from manganese-bearing wastewater using carbon dioxide

更新时间：2025-12-10

- Selective separation and recovery of manganese from manganese-bearing wastewater using carbon dioxide
- CIESC Journal Issue 7, Pages: 2798-2804(2017)
- 作者机构：
  
  中南民族大学环境科学与工程研究所, 中南民族大学资源与环境学院/催化材料科学国家民委-教育部共建重点实验室,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161737
  CLC： 75
- Online First：05 July 2017，
  
  Published：05 July 2017
- 稿件说明：
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MEI Ying, XUE Yuhua, YE Hengpeng, et al. Selective separation and recovery of manganese from manganese-bearing wastewater using carbon dioxide[J]. CIESC Journal, 2017, (7): 2798-2804.
DOI：

MEI Ying, XUE Yuhua, YE Hengpeng, et al. Selective separation and recovery of manganese from manganese-bearing wastewater using carbon dioxide[J]. CIESC Journal, 2017, (7): 2798-2804. DOI： 10.11949/j.issn.0438-1157.20161737.

摘要

讨论了反应时间、pH、温度、搅拌速率以及pH调节剂种类和投加量对Mn回收率的影响，确定了利用二氧化碳从含锰废水中选择性分离回收锰的最佳工艺条件。结果表明：在反应时间90 min，pH 6.6，反应温度45℃，搅拌速率600 r·min-1，NaOH投加量2 g·L-1的条件下，锰的回收率为99.79%，出水锰的浓度低于5 mg·L-1，达到《污水综合排放标准》（GB 8978-1996）中总锰的三级排放要求，沉淀物符合《工业碳酸锰标准》（HG/T 4203-2011）合格品技术要求。

Abstract

This article studied the effects of different parameters including reaction time

temperature

agitation speed

pH regulator type

dosage on the selective separation

and recovery of manganese from manganese-bearing wastewater using carbon dioxide. Optimum condition was determined by the highest recovery rate of manganese. The results showed that the recovery ratio of manganese was 99.79% with reaction time of 90 min

pH of 6.6

temperature of 45℃

agitation speed of 600 r·min-1

and NaOH concentration of 2 g·L-1. Mn concentration in the effluent was lower than 5 mg·L-1

which met the third level integrated wastewater discharge standard (GB 8978-1996). The precipitate was able to meet the conforming product of manganese carbonate for industrial use standard (HG/T 4203-2011).

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