Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration
An improved chemical regeneration of the granular activated carbon (GAC) exhausted by the color (pigments and pollutants) from citric acid fermentation solution (CAF) was investigated. In the experiments, improved means were adopted to advance the traditional chemical regenerating method and the ads...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2009-12-01
|
| Series: | Iranian Journal of Chemistry & Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.ijcce.ac.ir/article_6831_3aa53993a7c78a29b8c8b2da7a502465.pdf |
| _version_ | 1818472661036040192 |
|---|---|
| author | Kang Sun Jian-chun Jiang Xu Jun-ming |
| author_facet | Kang Sun Jian-chun Jiang Xu Jun-ming |
| author_sort | Kang Sun |
| collection | DOAJ |
| description | An improved chemical regeneration of the granular activated carbon (GAC) exhausted by the color (pigments and pollutants) from citric acid fermentation solution (CAF) was investigated. In the experiments, improved means were adopted to advance the traditional chemical regenerating method and the adsorption capacity of the first time renewed GAC is 103% of original GAC. Using oxidant and surfactant in addition to just using NaOH solution can recover 10 % more adsorption capacity of renewed GAC. The adding dosage of oxidant is good at 3 % of exhausted GAC weight; that of surfactant is good at 0.1 %. Hot water as cheap reagent was found to be much helpful to the regeneration efficiency. Comparing with steam regeneration high regeneration yield (>95 %) of this method was an attractive economic factor. The result of this investigation can offer an advanced chemical regeneration method to regenerate exhausted GAC from citric acid refine industry. |
| first_indexed | 2024-04-14T04:11:43Z |
| format | Article |
| id | doaj.art-5a3f7f1b0c2d4476bb133f06ecddf408 |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-04-14T04:11:43Z |
| publishDate | 2009-12-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-5a3f7f1b0c2d4476bb133f06ecddf4082022-12-22T02:13:08ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862009-12-0128479836831Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution DecolorationKang Sun0Jian-chun Jiang1Xu Jun-ming2Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, CHINAInstitute of Chemical Industry of Forest Products, CAF, Nanjing 210042, CHINAInstitute of Chemical Industry of Forest Products, CAF, Nanjing 210042, CHINAAn improved chemical regeneration of the granular activated carbon (GAC) exhausted by the color (pigments and pollutants) from citric acid fermentation solution (CAF) was investigated. In the experiments, improved means were adopted to advance the traditional chemical regenerating method and the adsorption capacity of the first time renewed GAC is 103% of original GAC. Using oxidant and surfactant in addition to just using NaOH solution can recover 10 % more adsorption capacity of renewed GAC. The adding dosage of oxidant is good at 3 % of exhausted GAC weight; that of surfactant is good at 0.1 %. Hot water as cheap reagent was found to be much helpful to the regeneration efficiency. Comparing with steam regeneration high regeneration yield (>95 %) of this method was an attractive economic factor. The result of this investigation can offer an advanced chemical regeneration method to regenerate exhausted GAC from citric acid refine industry.http://www.ijcce.ac.ir/article_6831_3aa53993a7c78a29b8c8b2da7a502465.pdfchemical regenerationgranular activated carbondecolorationcitric acid fermentation |
| spellingShingle | Kang Sun Jian-chun Jiang Xu Jun-ming Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration Iranian Journal of Chemistry & Chemical Engineering chemical regeneration granular activated carbon decoloration citric acid fermentation |
| title | Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration |
| title_full | Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration |
| title_fullStr | Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration |
| title_full_unstemmed | Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration |
| title_short | Chemical Regeneration of Exhausted Granular Activated Carbon Used in Citric Acid Fermentation Solution Decoloration |
| title_sort | chemical regeneration of exhausted granular activated carbon used in citric acid fermentation solution decoloration |
| topic | chemical regeneration granular activated carbon decoloration citric acid fermentation |
| url | http://www.ijcce.ac.ir/article_6831_3aa53993a7c78a29b8c8b2da7a502465.pdf |
| work_keys_str_mv | AT kangsun chemicalregenerationofexhaustedgranularactivatedcarbonusedincitricacidfermentationsolutiondecoloration AT jianchunjiang chemicalregenerationofexhaustedgranularactivatedcarbonusedincitricacidfermentationsolutiondecoloration AT xujunming chemicalregenerationofexhaustedgranularactivatedcarbonusedincitricacidfermentationsolutiondecoloration |