title: Energy-efficient methane production from macroalgal biomass through chemo disperser liquefaction.
abstract: In this study, an effort has been made to reduce the energy cost of liquefaction by coupling a mechanical disperser with a chemical (sodium tripolyphosphate). In terms of the cost and specific energy demand of liquefaction, the algal biomass disintegrated at 12,000rpm for 30min, and an STPP dosage of about 0.04g/gCOD was chosen as an optimal parameter. Chemo disperser liquefaction (CDL) was found to be energetically and economically sustainable in terms of liquefaction, methane production, and net profit (15%, 0.14gCOD/gCOD, and 4 USD/Ton of algal biomass) and preferable to disperser liquefaction (DL) (10%, 0.11 gCOD/gCOD, and -475 USD/Ton of algal biomass).
authors.affiliation: Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India.
authors.forename: K
authors.initials: K
authors.lastname: Tamilarasan
authors.affiliation: Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India.
authors.forename: S
authors.initials: S
authors.lastname: Kavitha
authors.affiliation: Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India. Electronic address: rajeshces@gmail.com.
authors.forename: J
authors.initials: J
authors.lastname: Rajesh Banu
authors.affiliation: Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
authors.forename: P
authors.initials: P
authors.lastname: Arulazhagan
authors.affiliation: Graduate School of Water Resource, Sungkyunkwan University, Suwon, South Korea.
authors.forename: Ick Tae
authors.initials: IT
authors.lastname: Yeom
mesh_terms: D000143:Acids / Q000737:chemistry; D000693:Anaerobiosis; D000704:Analysis of Variance; D001673:Biodegradation, Environmental; D018533:Biomass; D001704:Biopolymers / Q000032:analysis; D001709:Biotechnology / Q000191:economics / Q000379:methods*; D003365:Costs and Cost Analysis; D006868:Hydrolysis; D016014:Linear Models; D008697:Methane / Q000096:biosynthesis*; D017711:Nonlinear Dynamics; D009930:Organic Chemicals / Q000032:analysis; D012624:Seaweed / Q000378:metabolism
chemical_list: D000143:Acids; D001704:Biopolymers; D009930:Organic Chemicals; D008697:Methane
keywords: Algal biomass; Disperser; Liquefaction; Methane; Specific energy