title: Rapid mineralisation of the Organic Fraction of Municipal Solid Waste.
abstract: The effect of pH, C/N ratio, addition of a microbial consortium (MC) and temperature upon mineralisation of Organic Fraction of Municipal Solid Waste (OFMSW) was studied; mineralisation was measured through the CO2 production rate and total CO2 formation. Through this process up to 432.9mg of CO2g(-1) initial dry matter (IDM) after 2days of treatment was obtained. It was found that under a slightly acidic pH (5-6) and C/N of 30, the mineralisation process was accelerated. Moreover, temperature (27-50°C) had no effect on the total CO2 produced. The highest CO2 production rate (5.28d(-1)) was observed at 27°C, C/N ratio of 30 and 8% of microbial consortium; it is at least 3.52 times higher than that reported (1.5d(-1)). The highest release of reducing sugars was determined at 50°C, possibly due to an increase in hydrolytic enzymes. Results suggest the potential use of rapid mineralisation of OFMSW for further friendly environmental processes.
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico.
authors.forename: F J
authors.initials: FJ
authors.lastname: Martínez-Valdez
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico.
authors.forename: C
authors.initials: C
authors.lastname: Martínez-Ramírez
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico.
authors.forename: L
authors.initials: L
authors.lastname: Martínez-Montiel
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico.
authors.forename: E
authors.initials: E
authors.lastname: Favela-Torres
authors.affiliation: Durango Institute of Technology, Durango, Durango 34080, Mexico.
authors.forename: N O
authors.initials: NO
authors.lastname: Soto-Cruz
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico.
authors.forename: F
authors.initials: F
authors.lastname: Ramírez-Vives
authors.affiliation: Metropolitan Autonomous University Campus Iztapalapa, Biotechnology Department, Mexico City, Iztapalapa, Z.C. 09340, Mexico. Electronic address: saucedo@xanum.uam.mx.
authors.forename: G
authors.initials: G
authors.lastname: Saucedo-Castañeda
mesh_terms: D000332:Aerobiosis; D002244:Carbon / Q000378:metabolism; D002245:Carbon Dioxide / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D059013:Microbial Consortia; D008903:Minerals / Q000737:chemistry; D009584:Nitrogen / Q000378:metabolism; D012037:Refuse Disposal / Q000379:methods*; D062611:Solid Waste; D013696:Temperature
chemical_list: D008903:Minerals; D062611:Solid Waste; D002245:Carbon Dioxide; D002244:Carbon; D009584:Nitrogen
keywords: C/N; Organic Fraction of Municipal Solid Waste; Rapid mineralisation; Respiration activity; Temperature