Chemical oxygen demand reduction of pineapple industry wastewater using Kurthia gibsonii immobilised onto sugarcane bagasse

Nor Syamimi Musa, . and Wan Azlina Ahmad, . (2011) Chemical oxygen demand reduction of pineapple industry wastewater using Kurthia gibsonii immobilised onto sugarcane bagasse. [Proceedings Paper]

Wastewater from pineapple cannery industry contributes to high levels of Chemical Oxygen Demand COD colors and suspended solids when discharged to the environment. Currently there are many methods that have been used to treat organic pollutants in wastewater such as ozonation chemical coagulation and electrochemical oxidation. However these methods require high operational costs and are energy intensive besides producing large amounts of sludge. Biological treatment may be a good alternative since its operational cost is lower and it creates an environmental friendly atmosphere compared to the conventional methods. In this study the effectiveness of COD reduction involving locally isolated bacteria Kurthia gibsonii was carried out in continuous system. The wastewater was passed at a flow rate of 3 mL/min onto a column packed with sugarcane bagasse for bacterial immobilisation. The performance of these systems in reducing the COD level was monitored within 5 days. The COD reduction was analysed using a Hach DR/5000 spectrophotometer. The involvement of the Kurthia gibsonii immobilised in the glass column showed a maximal COD reduction of 96 after 5 days exposure to the pineapple industry wastewater. The interaction between bacteria and sugarcane bagasse in the column was confirmed using FESEM.

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Abstract

Wastewater from pineapple cannery industry contributes to high levels of Chemical Oxygen Demand COD colors and suspended solids when discharged to the environment. Currently there are many methods that have been used to treat organic pollutants in wastewater such as ozonation chemical coagulation and electrochemical oxidation. However these methods require high operational costs and are energy intensive besides producing large amounts of sludge. Biological treatment may be a good alternative since its operational cost is lower and it creates an environmental friendly atmosphere compared to the conventional methods. In this study the effectiveness of COD reduction involving locally isolated bacteria Kurthia gibsonii was carried out in continuous system. The wastewater was passed at a flow rate of 3 mL/min onto a column packed with sugarcane bagasse for bacterial immobilisation. The performance of these systems in reducing the COD level was monitored within 5 days. The COD reduction was analysed using a Hach DR/5000 spectrophotometer. The involvement of the Kurthia gibsonii immobilised in the glass column showed a maximal COD reduction of 96 after 5 days exposure to the pineapple industry wastewater. The interaction between bacteria and sugarcane bagasse in the column was confirmed using FESEM.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QR22 M3I61 2011 vol.2 Call Number.
AGROVOC Term:	Ananas comosus
AGROVOC Term:	Pineapples
AGROVOC Term:	COD chemical oxygen demand
AGROVOC Term:	Sugarcane
AGROVOC Term:	Bagasse
AGROVOC Term:	Bacteria
AGROVOC Term:	Bioreactors
AGROVOC Term:	Isolation
AGROVOC Term:	Immobilization
AGROVOC Term:	Immobilized bacteria
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:15
URI:	http://webagris.upm.edu.my/id/eprint/12996

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