Regeneration of Spent Activated Carbon by Yeast and Chemical Method

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (4): 659-664.

• SEPARATION SCIENCE AND ENGINEERING • Previous Articles Next Articles

Regeneration of Spent Activated Carbon by Yeast and Chemical Method

HE Wenhui¹, LÜ Guocheng¹, CUI Jie², WU Limei¹, LIAO Libing¹

1. School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China;
2. Sinoma Geological Engineering Exploration Academy, Beijing 100176, China

Received:2011-10-26 Revised:2012-05-07 Online:2012-09-15 Published:2012-08-28
Supported by:
Supported by the Fundamental Research Funds for the Central Universities (2011YXL056);National Program of Controland Treatment of Water Pollution (2009ZX07424-002)

Regeneration of Spent Activated Carbon by Yeast and Chemical Method

何文会¹, 吕国诚¹, 崔婕², 吴丽梅¹, 廖立兵¹

1. School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China;
2. Sinoma Geological Engineering Exploration Academy, Beijing 100176, China

通讯作者: LÜ Guocheng, E-mail:guochenglv@cugb.edu.cn;LIAO Libing, E-mail:lbliao@cugb.edu.cn
基金资助:
Supported by the Fundamental Research Funds for the Central Universities (2011YXL056);National Program of Controland Treatment of Water Pollution (2009ZX07424-002)

Abstract

Abstract: In this study,spent activated carbon(AC) saturated with caramel was regenerated by using yeast and NaOH.The efficiency of regeneration was evaluated under parameters such as amount,treatment time,temperature,pH value,stirring temperature of yeast and NaOH concentration.The optimum condition for AC regeneration was 8 h for yeast treatment time,35℃ for 0.075% yeast culture temperature,a pH value of 6 for the yeast dealing with the spent AC,90℃ for NaOH stirring temperature of AC and 6% NaOH for washing after the spent AC was treated by yeast.Under these conditions,methylene blue(MB) adsorption was 213 mg·g^-1 in comparison with 60 mg·g^-1 of spent AC.The micro structure and surface area of the regenerated AC were characterized by scanning electron mi-croscope(SEM) and N₂ sorption,respectively.The pore size distributions of virgin and regenerated AC were ana-lyzed by means of H-K equation,resulting in a mean pore diameter of 1.28 nm and a pore volume of 1.13 cm³·g^-1.This study provides data for theoretical support of the AC regeneration technology.

Key words: yeast, NaOH, activated carbon, regeneration

摘要： In this study,spent activated carbon(AC) saturated with caramel was regenerated by using yeast and NaOH.The efficiency of regeneration was evaluated under parameters such as amount,treatment time,temperature,pH value,stirring temperature of yeast and NaOH concentration.The optimum condition for AC regeneration was 8 h for yeast treatment time,35℃ for 0.075% yeast culture temperature,a pH value of 6 for the yeast dealing with the spent AC,90℃ for NaOH stirring temperature of AC and 6% NaOH for washing after the spent AC was treated by yeast.Under these conditions,methylene blue(MB) adsorption was 213 mg·g^-1 in comparison with 60 mg·g^-1 of spent AC.The micro structure and surface area of the regenerated AC were characterized by scanning electron mi-croscope(SEM) and N₂ sorption,respectively.The pore size distributions of virgin and regenerated AC were ana-lyzed by means of H-K equation,resulting in a mean pore diameter of 1.28 nm and a pore volume of 1.13 cm³·g^-1.This study provides data for theoretical support of the AC regeneration technology.

关键词: yeast, NaOH, activated carbon, regeneration

HE Wenhui, LÜ Guocheng, CUI Jie, WU Limei, LIAO Libing. Regeneration of Spent Activated Carbon by Yeast and Chemical Method[J]. Chin.J.Chem.Eng., 2012, 20(4): 659-664.

何文会, 吕国诚, 崔婕, 吴丽梅, 廖立兵. Regeneration of Spent Activated Carbon by Yeast and Chemical Method[J]. Chinese Journal of Chemical Engineering, 2012, 20(4): 659-664.

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Regeneration of Spent Activated Carbon by Yeast and Chemical Method

Regeneration of Spent Activated Carbon by Yeast and Chemical Method

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