title: Reduction and biofixation of carbon dioxide in palm oil mill effluent using developed microbial granules containing photosynthetic pigments.
abstract: The developed microbial granules containing photosynthetic pigments had successfully achieved approximately 18-21% of carbon dioxide (CO2) removal in POME for one complete SBR cycle. Also, the granules had reached CO2removal at 15-29% within 24h and removal of 25% after 5 days. Both results were inconsistent possibly due to the slow mass transfer rate of CO2from gas to liquid as well as the simultaneous effect of CO2production and respiration among the microbes. Furthermore, results showed the removal of CO2from air increases proportionally with the CO2removed in liquid. The CO2biofixation of granules attained was approximately 0.23g/L/day for a week. Using the regression model, the removal of CO2between liquid and gas, CO2biofixation rate were highly correlated with the treatment time. A statistically significant relationship was obtained between CO2concentration in liquid, biomass productivity and treatment time for the CO2biofixation rate of the granules.
authors.affiliation: Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia.
authors.forename: M Z Mohamed
authors.initials: MZM
authors.lastname: Najib
authors.affiliation: Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia; Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia. Electronic address: salmiati@utm.my.
authors.lastname: Salmiati
authors.affiliation: Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia.
authors.forename: Z
authors.initials: Z
authors.lastname: Ujang
authors.affiliation: Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia; Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia.
authors.forename: M R
authors.initials: MR
authors.lastname: Salim
authors.affiliation: Department of Biosciences and Health Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia.
authors.forename: Z
authors.initials: Z
authors.lastname: Ibrahim
authors.affiliation: Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia.
authors.forename: K
authors.initials: K
authors.lastname: Muda
mesh_terms: D018533:Biomass; D002245:Carbon Dioxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D000073878:Palm Oil; D010788:Photosynthesis; D010938:Plant Oils / Q000737:chemistry*; D014877:Water Pollution, Chemical / Q000032:analysis; D018508:Water Purification / Q000379:methods*
chemical_list: D010938:Plant Oils; D002245:Carbon Dioxide; D000073878:Palm Oil
keywords: CO(2); CO(2) biofixation rate; CO(2) removal; Microbial granules; POME