title: Dry fermentation of manure with straw in continuous plug flow reactor: Reactor development and process stability at different loading rates.
abstract: In this work, a plug flow reactor was developed for continuous dry digestion processes and its efficiency was investigated using untreated manure bedded with straw at 22% total solids content. This newly developed reactor worked successfully for 230days at increasing organic loading rates of 2.8, 4.2 and 6gVS/L/d and retention times of 60, 40 and 28days, respectively. Organic loading rates up to 4.2gVS/L/d gave a better process stability, with methane yields up to 0.163LCH4/gVSadded/d which is 56% of the theoretical yield. Further increase of organic loading rate to 6gVS/L/d caused process instability with lower volatile solid removal efficiency and cellulose degradation.
authors.affiliation: Swedish Centre for Resource Recovery, University of Borås, Sweden. Electronic address: regina.jijoho_patinvoh@hb.se.
authors.forename: Regina J
authors.initials: RJ
authors.lastname: Patinvoh
authors.affiliation: Swedish Centre for Resource Recovery, University of Borås, Sweden.
authors.forename: Adib
authors.initials: A
authors.lastname: Kalantar Mehrjerdi
authors.affiliation: Swedish Centre for Resource Recovery, University of Borås, Sweden.
authors.forename: Ilona
authors.initials: I
authors.lastname: Sárvári Horváth
authors.affiliation: Swedish Centre for Resource Recovery, University of Borås, Sweden.
authors.forename: Mohammad J
authors.initials: MJ
authors.lastname: Taherzadeh
mesh_terms: D000641:Ammonia / Q000378:metabolism; D056804:Biofuels; D019149:Bioreactors; D004867:Equipment Design; D005232:Fatty Acids, Volatile / Q000378:metabolism; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D008372:Manure; D008697:Methane / Q000096:biosynthesis; D009584:Nitrogen / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*
chemical_list: D056804:Biofuels; D005232:Fatty Acids, Volatile; D008372:Manure; D000641:Ammonia; D009584:Nitrogen; D008697:Methane
keywords: Continuous process; Dry fermentation; Plug flow reactor; Process stability; Reactor development