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231222s2001 xx ||||| 00| ||eng c |
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|e rakwb
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|a eng
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1 |
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|a Vinitnantharat, S
|e verfasserin
|4 aut
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| 245 |
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|a Quantitative bioregeneration of granular activated carbon loaded with phenol and 2,4-dichlorophenol
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|c 2001
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 30.08.2001
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Lignite based granular activated carbon of 20x30 mesh size was used to investigate the extent of bioregeneration of phenol and 2,4-DCP in a batch system. The adsorption isotherm fits very well with the Freundlich isotherm and it is apparent that 2,4-DCP is more adsorbable than phenol. The degree of reversible adsorption for phenol and 2,4-DCP were 32.9 and 10.6 %, respectively. The low percentages of their reversibility meant that the adsorption phenomena of both phenol and 2,4-DCP were not fully physicosorption. The microorganisms can regenerate 31.4% (21.2 mg g(-1)) of GAC loaded with phenol and 14.3% (24.8 mg g(-1)) of GAC loaded with 2,4-DCP over a period of 7-10 days. The bioregeneration of phenols closely followed the first order kinetics with the rate constant of 0.046 day(-1) at initial phenol concentration of 100 mg l(-1) and biomass concentration of 20 mg l(-1) MLVSS. The rate constant was 0.021 day(-1) at initial 2,4-DCP concentration of 200 mg l(-1) and 200 mg l(-1) MLVSS. In addition, the increasing in initial concentration of biomass in the solution shortened the time required to reach the asymptotic limit on the bioregeneration but rendered little impact on the bioregeneration percentage
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| 650 |
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|a Journal Article
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| 650 |
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7 |
|a Chlorophenols
|2 NLM
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| 650 |
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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|a Phenol
|2 NLM
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| 650 |
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|a 339NCG44TV
|2 NLM
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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|a 7440-44-0
|2 NLM
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| 650 |
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|a 2,4-dichlorophenol
|2 NLM
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| 650 |
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7 |
|a R669TG1950
|2 NLM
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| 700 |
1 |
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|a Baral, A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ishibashi, Y
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ha, S R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1998
|g 22(2001), 3 vom: 23. März, Seite 339-44
|w (DE-627)NLM098202545
|x 0959-3330
|7 nnns
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| 773 |
1 |
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|g volume:22
|g year:2001
|g number:3
|g day:23
|g month:03
|g pages:339-44
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| 952 |
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|d 22
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|e 3
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|c 03
|h 339-44
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