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Adsorption of alkyl benzene sulfonate surfactant on activated carbon for biobarrier purpose

Wijanarko, Anondho and Wulan, Pembangun Dyah Kencana Praswasti and Chandra, Willy and Dianursanti, Dianursanti and Song, Seung Koo and Sudibandriyo, Mahmud and Gozan, Misri (2006) Adsorption of alkyl benzene sulfonate surfactant on activated carbon for biobarrier purpose. In: 1st International Conference on Natural Resources Engineering & Technology 2006, 24-25th July 2006, Putrajaya, Malaysia.

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Abstract

Simultaneous adsorption and biodegradation process in fluidized biobarrier reactor is one of emerging methods for eliminating surfactant in waste water. This paper discusses the adsorption process on activated carbon as a part of a biobarrier system. Surfactant used in these experiments is branched sodium dodecyl benzene sulfonate branched in various concentrations of 400, 700, 1000 and 1500 mg/L placed in 250 mL closed-erlenmeyer container (in batch system). Adsorption took part in a glass column of 30 cm length and 2 cm diameter. Total surfactant concentration was measured with COD-chromate analysis and surface tension measurement. Adsorption equilibrium curves in solid (dC/m) and liquid phase (Ce) as well as surfactant concentration versus surface tension were performed. The results showed that surfactant adsorption equilibrium curve rose within equilibrium concentration (Ce) 0 – 533.4 mg/L, then reached plateau with increasing Ce. Critical Micelle Concentration (CMC) Sodium Dodecyl Benzene Sulfonate was 533.4 mg/L. Freundlich equilibrium constants were (1/n) = 1.91 and Kf = 9.97.10-5 in Ce range of 252.6 to 481.2 mg/L. The equilibrium time for adsorption was 24 hours and the minimum fluidization velocity was predicted to be 0.717 cm/s.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Adsorption; surfactant concentration; COD-chromate; surface tension.
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:326
Deposited By: Cik Rasyidah Mohd Daud
Deposited On:15 Feb 2007 10:08
Last Modified:01 Jun 2010 02:43

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