Energetically efficient combinative Pretreatment of marine macroalgal Biomass for biomethane production Experimental studies kinetics and Biodegradability modelling

Abstract

Marine macroalgal biomass is considered a 3rd generation biomass newlinesubstrates for biomethane generation, are meeting great awareness due to its newlinemass productivity and more CO2 diminution effects when compared to 1st and newline2nd generation biomass feedstocks. It becomes suitable feedstocks for newlineanaerobic digestion because it contains higher amount of proteins, newlinecarbohydrates, lipids and no lignin content. However, to improve the newlineapplication of anaerobic digestion involving macroalgal biomass, present newlineinvestigation prefers that there is still some requirement for developing newlinemacroalgal biomass digestion potential. newlineAnaerobic digestion involves the bacterial deterioration of soluble newlineorganic matters, sufficient pretreatment improving liquefaction of macroalgal newlinebiomass can enhance the anaerobic biodegradability. Several pretreatment newlinetechniques such as physical, mechanical, chemical and biological can be newlineovercome the anaerobic digestion drawback. Disperser pretreatment is one of newlinethe best potential process for the liquefaction of macroalgal biomass. Still, newlinethis pretreatment technique has some limitations such as high energy required newlineand treatment cost. Possibly it can be profitable through disperser mediated newlinechemical liquefaction of macroalgal biomass which leads to improve the newlinemethane production rate with the least energy input. newlineThe current research gives the results attained from laboratory scale newlineinvestigation of disperser mediated chemical agents such as sodium newlinetripolyphosphate, thermo alkali, ozone liquefaction, evaluation of newlinefermentation and methanogenesis activity of liquefied macroalgal biomass newline