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Development and utilization of aerobic granules for the palm oil mill (POM) wastewater treatment / K. Gobi in Chemical engineering journal, Vol. 174 N° 1 (Octobre 2011) 

Public ISBD [article]  in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp. 213–220 Titre : Development and utilization of aerobic granules for the palm oil mill (POM) wastewater treatment Type de document : texte imprimé Auteurs : K. Gobi, Auteur ; M.D. Mashitah, Auteur ; V.M. Vadivelu, Auteur Année de publication : 2012 Article en page(s) : pp. 213–220 Note générale : Génie chimique Langues : Anglais (eng) Mots-clés : Aerobic  granules  Aerobic  granules  POM  wastewater  Response  Surface  Methodology  (RSM) Résumé : The high COD and turbidity level of palm oil mill (POM) wastewater has been the driving force to find an efficient treatment system. In this work, biological and adsorption methods are integrated and used to treat the POM wastewater. In biological treatment, aerobic granules are developed and used in the sequencing batch reactor (SBR), whereas in adsorption treatment, the waste aerobic granules (WAG) are utilized as adsorbent. Response Surface Methodology (RSM) has been used to model and optimize the adsorption of biologically treated POM wastewater. Aerobic granules took 110 days to appear and the average diameter was 0.9 mm (with a maximum value of 3.1 mm). The aerobic granules are able to remove 88% of the influent COD at organic loading rate (OLR) of 3.0 kg COD/m3 day. The increase of OLR to 6.0 kg COD/m3 day did not affect the COD removal efficiency and the aerobic granules immediately responded to the OLR increase. The adsorption system revealed that the 21% of the remaining COD (of the biologically treated POM wastewater) and almost 99% of the turbidity were removed. At optimum point (3.28 cm of bed height and 2.13 ml/min flow rate), the amount of COD and turbidity removed are 21% and 96%, respectively. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010606 [article] Development and utilization of aerobic granules for the palm oil mill (POM) wastewater treatment [texte imprimé] / K. Gobi, Auteur ; M.D. Mashitah, Auteur ; V.M. Vadivelu, Auteur . - 2012 . - pp. 213–220. Génie chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp. 213–220 Mots-clés : Aerobic  granules  Aerobic  granules  POM  wastewater  Response  Surface  Methodology  (RSM) Résumé : The high COD and turbidity level of palm oil mill (POM) wastewater has been the driving force to find an efficient treatment system. In this work, biological and adsorption methods are integrated and used to treat the POM wastewater. In biological treatment, aerobic granules are developed and used in the sequencing batch reactor (SBR), whereas in adsorption treatment, the waste aerobic granules (WAG) are utilized as adsorbent. Response Surface Methodology (RSM) has been used to model and optimize the adsorption of biologically treated POM wastewater. Aerobic granules took 110 days to appear and the average diameter was 0.9 mm (with a maximum value of 3.1 mm). The aerobic granules are able to remove 88% of the influent COD at organic loading rate (OLR) of 3.0 kg COD/m3 day. The increase of OLR to 6.0 kg COD/m3 day did not affect the COD removal efficiency and the aerobic granules immediately responded to the OLR increase. The adsorption system revealed that the 21% of the remaining COD (of the biologically treated POM wastewater) and almost 99% of the turbidity were removed. At optimum point (3.28 cm of bed height and 2.13 ml/min flow rate), the amount of COD and turbidity removed are 21% and 96%, respectively. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010606