title: Influence of control parameters in VOCs evolution during MSW trimming residues composting.
abstract: The influence of control parameters (aeration, moisture, and C/N ratio) during composting of a municipal solid waste (MSW)-legume-trimming residue (LTR) mixture was studied at a pilot plant scale. Factors measured included the composition of the main volatile organic carbons (VOCs) emitted including limonene, β-pinene, 2-butanone, undecane, phenol, toluene, and dimethyl disulfide. Polynomial models were found to reproduce the experimental results with errors at less than 10%. The relative influence of the independent variables on temperature and selected VOCs followed the order: aeration > moisture > C/N. A high aeration rate results in higher (strong negative effect) values on selected VOCs emissions (41-71% on emitted VOCs variation). Moisture had a positive and negative effect depending on the selected VOCs. A high C/N ratio caused lower production of VOCs except for undecane and 2-butanone. Providing an aerobic environment (0.05 Lair kg(-1) min(-1)), high C/N ratios (>50), and medium moisture (55%) minimize emitted VOCs during MSW composting, ultimately resulting in less odors in the surrounding environment.
authors: Departamento de Ingeniería Química, Química Física y Química Orgánica, Universidad de Huelva, 21071 Huelva, Spain.
authors: Margarita
authors: M
authors: Delgado-Rodríguez
authors: Mercedes
authors: M
authors: Ruiz-Montoya
authors: Inmaculada
authors: I
authors: Giraldez
authors: Rafael
authors: R
authors: López
authors: Engracia
authors: E
authors: Madejón
authors: Manuel Jesús
authors: MJ
authors: Díaz
mesh_terms: D002244:Carbon / Q000032:analysis; D004787:Environmental Pollution / Q000517:prevention & control; D009584:Nitrogen / Q000032:analysis; D009812:Odorants / Q000032:analysis; D010100:Oxygen / Q000008:administration & dosage; D012037:Refuse Disposal / Q000379:methods*; D012987:Soil / Q000737:chemistry*; D013696:Temperature; D055549:Volatile Organic Compounds / Q000032:analysis / Q000737:chemistry*; D014867:Water / Q000032:analysis
chemical_list: D012987:Soil; D055549:Volatile Organic Compounds; D014867:Water; D002244:Carbon; D009584:Nitrogen; D010100:Oxygen