Electrochemical regeneration of activated carbon fiber saturated with oily wastewater

FU Baolin; GUO Jianwei; ZHONG Xuanbin; PENG Jinping; CUI Yingde; YANG Yucheng

doi:10.3969/j.issn.0438-1157.2013.09.024

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Electrochemical regeneration of activated carbon fiber saturated with oily wastewater

更新时间：2025-12-10

- Electrochemical regeneration of activated carbon fiber saturated with oily wastewater
- CIESC Journal Issue 9, Pages: 3250-3255(2013)
- 作者机构：
  
  1. 广东工业大学轻工化工学院,广东,广州,510006
  2. 北京中能环科技术发展有限公司,北京,100080
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.024
  CLC： 703.1
- Online First：05 September 2013，
  
  Published：05 September 2013
- 稿件说明：
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FU Baolin, GUO Jianwei, ZHONG Xuanbin, et al. Electrochemical regeneration of activated carbon fiber saturated with oily wastewater[J]. CIESC Journal, 2013, (9): 3250-3255.
DOI：

FU Baolin, GUO Jianwei, ZHONG Xuanbin, et al. Electrochemical regeneration of activated carbon fiber saturated with oily wastewater[J]. CIESC Journal, 2013, (9): 3250-3255. DOI： 10.3969/j.issn.0438-1157.2013.09.024.

摘要

为了对有机物吸附饱和的活性炭纤维(ACF)进行电化学再生研究

以含油废水为模拟有机物

通过测量再生前后ACF对含油废水的吸附效果

考察了电流密度、再生时间、pH值、电解质的电化学再生的影响因素

并研究了电化学再生过程对ACF结构的影响以及ACF电化学再生的机理。结果表明

在电流密度为30 mA·cm-2

pH值为4

15 g·L-1 NaCl的溶液中再生120 min

再生率可达到90%

5次电化学再生循环后

ACF保持较高的吸附容量。再生后ACF的表面没有明显损伤

比表面积也没有明显减小

微孔孔径分布于0.5～1.0 nm。由紫外光谱分析可知

ACF的电化学再生机理主要包括电脱附及电化学氧化过程。

Abstract

The effectiveness of electrochemical regeneration of activated carbon fiber(ACF)saturated with oily organic wastewater was assessed by adsorption capacity of regenerated ACF achieved in the re-adsorption experiment.The effects of current density

regeneration time

pH value

electrolyte

and structure of ACF were investigated.The regeneration efficiency can reach 90% under such optimum conditions as current density 30 mA·cm-2

pH 4

15 g·L-1 NaCl

and 120 min of regeneration time

and ACFs keep high adsorption capacity after five cycles for continuous adsorption and regeneration.The micropore size distribution of the regenerated ACF is in the range from 0.5 to 1.0 nm.It is not found significant damage on the surface of the regenerated ACF or obvious decrease of its BET surface area.The UV spectra show that the electrochemical regeneration process is mainly due to the desorption and decomposition of organics generated by electrochemical oxidation.

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