<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Response surface methodology to optimize methane production from mesophilic anaerobic co-digestion of oily-biological sludge and sugarcane bagasse"^^ . "Oily-biological sludge (OBS) generated from petroleum refineries has high toxicity. Therefore, it needs an appropriate disposal method to reduce the negative impacts on the environment. The anaerobic co-digestion process is an effective method that manages and converts organic waste to energy. For effective anaerobic digestion, a co-substrate would be required to provide a suitable environment for anaerobic bacteria. In oily-biological sludge, the carbon/nitrogen (C/N) ratio and volatile solids (VS) content are very low. Therefore, it needs to be digested with organic waste that has a high C/N ratio and high VS content. This study investigates the use of sugarcane bagasse (SB) as an effective co-substrate due to its high C/N ratio and high VS content to improve the anaerobic co-digestion process with oily-biological sludge. The sugarcane bagasse also helps to delay the toxicity effect of the methane bacteria. Batch anaerobic co-digestion of oily-biological sludge was conducted with sugarcane bagasse as a co-substrate in twelve reactors with two-liter capacity, each under mesophilic conditions. The interaction effect of a C/N ratio of 20-30 and a VS co-substrate/VS inoculum ratio of 0.06-0.18 on the methane yield (mL CH4/g VSremoved) was investigated. Before the anaerobic digestion, thermochemical pre-treatment of the inoculum and co-substrate was conducted using sodium hydroxide to balance their acidic nature and provide a suitable pH environment for methane bacteria. Design and optimization for the mixing ratios were carried out by central composite design-response surface methodology (CCD-RSM). The highest predicted methane yield was found to be 63.52 mL CH4/g VSremoved, under optimum conditions (C/N ratio of 30 and co-substrate/inoculum ratio of 0.18). © 2020 by the authors."^^ . "2020" . . "12" . "5" . . "MDPI"^^ . . . "Sustainability (Switzerland)"^^ . . . "20711050" . . . . . . . . . . . . . . . . . . . . . . . . . "A.A.S."^^ . "Ghaleb"^^ . "A.A.S. Ghaleb"^^ . . "A."^^ . "Noor"^^ . "A. Noor"^^ . . "S.R.M."^^ . "Kutty"^^ . "S.R.M. Kutty"^^ . . "A.M."^^ . "Al-Sabaeei"^^ . "A.M. Al-Sabaeei"^^ . . "A.H."^^ . "Jagaba"^^ . "A.H. Jagaba"^^ . . "Y.-C."^^ . "Ho"^^ . "Y.-C. Ho"^^ . . "N.M.Y."^^ . "Almahbashi"^^ . "N.M.Y. Almahbashi"^^ . . . . . "HTML Summary of #13395 \n\nResponse surface methodology to optimize methane production from mesophilic anaerobic co-digestion of oily-biological sludge and sugarcane bagasse\n\n" . "text/html" . .