Title: Biofilm composite design on pumice stone for phenol degradation in batik industrial waste

Authors: Slamet; Heri Hermansyah; Agung Sri Hendarsa; Miranda Hasanah

Addresses: Chemical Engineering Department, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok 16424, Indonesia ' Chemical Engineering Department, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok 16424, Indonesia ' Chemical Engineering Department, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok 16424, Indonesia ' Chemical Engineering Department, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok 16424, Indonesia

Abstract: Biofilm formed by bacterial activity of Acinetobacter sp. and cow's stomach bacteria consortium has been developed on pumice stone. The biofilm were characterised by scanning electron microscopy to find out the morphology of pumices surface. Total plate count (TPC) analysis was also conducted to investigate the cell density. Observation by scanning electron microscopy evidenced the present of abundant exopolymeric material surrounding the cells in the biofilm. The two variant of biofilm will be tested to degrade phenol, a pollutant from batik industry's waste. The influence of aeration on biofilm's activity for phenol degradation was also determined. Phenol degradation monitored during four hours operation. With the addition of aeration, cow's stomach bacteria consortium biofilm can degrade 89% of 10 ppm phenol while Acinetobacter sp. biofilm can only degrade 77% of 10 ppm phenol. It can then be concluded that biofilm from cow's stomach bacteria consortium can degrade phenol better than Acinetobacter sp.

Keywords: Acinetobacter sp; biofilm composite design; pumice stone; phenol degradation; batik industrial waste; biodegradation; cow stomachs; cow stomach bacteria consortium; environmental pollution; industrial waste; waste management; wastewater treatment; cell density; batik industry; aeration.

DOI: 10.1504/IJEWM.2015.073029

International Journal of Environment and Waste Management, 2015 Vol.16 No.3, pp.209 - 220

Received: 22 Sep 2014
Accepted: 10 Jun 2015
Published online: 12 Nov 2015 *

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