title: Impact of pH Management Interval on Biohydrogen Production from Organic Fraction of Municipal Solid Wastes by Mesophilic Thermophilic Anaerobic Codigestion.
abstract: The biohydrogen productions from the organic fraction of municipal solid wastes (OFMSW) were studied under pH management intervals of 12 h (PM12) and 24 h (PM24) for temperature of 37 ± 0.1°C and 55 ± 0.1°C. The OFMSW or food waste (FW) along with its two components, noodle waste (NW) and rice waste (RW), was codigested with sludge to estimate the potential of biohydrogen production. The biohydrogen production was higher in all reactors under PM12 as compared to PM24. The drop in pH from 7 to 5.3 was observed to be appropriate for biohydrogen production via mesophilic codigestion of noodle waste with the highest biohydrogen yield of 145.93 mL/g CODremoved under PM12. When the temperature was increased from 37°C to 55°C and pH management interval was reduced from 24 h to 12 h, the biohydrogen yields were also changed from 39.21 mL/g COD removed to 89.67 mL/g COD removed, 91.77 mL/g COD removed to 145.93 mL/g COD removed, and 15.36 mL/g COD removed to 117.62 mL/g COD removed for FW, NW, and RW, respectively. The drop in pH and VFA production was better controlled under PM12 as compared to PM24. Overall, PM12 was found to be an effective mean for biohydrogen production through anaerobic digestion of food waste.
authors.affiliation: College of Engineering, Nanjing Agricultural University, Nanjing, Jiangsu 210031, China; Department of Structures and Environmental Engineering, University of Agriculture, Faisalabad 38000, Pakistan.
authors.forename: Chaudhry
authors.initials: C
authors.lastname: Arslan
authors.affiliation: College of Engineering, Nanjing Agricultural University, Nanjing, Jiangsu 210031, China.
authors.forename: Asma
authors.initials: A
authors.lastname: Sattar
authors.affiliation: College of Engineering, Nanjing Agricultural University, Nanjing, Jiangsu 210031, China.
authors.forename: Ji
authors.initials: J
authors.lastname: Changying
authors.affiliation: Department of Structures and Environmental Engineering, University of Agriculture, Faisalabad 38000, Pakistan.
authors.forename: Abdul
authors.initials: A
authors.lastname: Nasir
authors.affiliation: Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, Pakistan.
authors.forename: Irshad Ali
authors.initials: IA
authors.lastname: Mari
authors.affiliation: Institute of Food Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan.
authors.forename: Muhammad Zia
authors.initials: MZ
authors.lastname: Bakht
mesh_terms: D000693:Anaerobiosis; D006358:Hot Temperature; D006859:Hydrogen / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D062611:Solid Waste; D018505:Waste Management / Q000379:methods*
chemical_list: D062611:Solid Waste; D006859:Hydrogen
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