title: Effects of aeration rate on degradation process of oil palm empty fruit bunch with kinetic-dynamic modeling.
abstract: The effect of different aeration rates on the organic matter (OM) degradation during the active phase of oil palm empty fruit bunch (EFB)-rabbit manure co-composting process under constant forced-aeration system has been studied. Four different aeration rates, 0.13 L min(-1) kg(DM)(-1),0.26 L min(-1) kg(DM)(-1),0.49 L min(-1) kg(DM)(-1) and 0.74 L min(-1) kg(DM)(-1) were applied. 0.26 L min(-1) kg(DM)(-1) provided enough oxygen level (10%) for the rest of composting period, showing 40.5% of OM reduction that is better than other aeration rates. A dynamic mathematical model describing OM degradation, based on the ratio between OM content and initial OM content with correction functions of moisture content, free air space, oxygen and temperature has been proposed.
authors: Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors: Ahmad Tarmezee
authors: AT
authors: Talib
authors: Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia. Electronic address: noriznan@upm.edu.my.
authors: Mohd Noriznan
authors: MN
authors: Mokhtar
authors: Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors: Azhari Samsu
authors: AS
authors: Baharuddin
authors: Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
authors: Alawi
authors: A
authors: Sulaiman
mesh_terms: D000332:Aerobiosis; D000818:Animals; D028023:Arecaceae / Q000737:chemistry*; D001673:Biodegradation, Environmental; D002244:Carbon / Q000032:analysis; D004553:Electric Conductivity; D005638:Fruit / Q000737:chemistry*; D006813:Humidity; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis; D009930:Organic Chemicals / Q000302:isolation & purification; D010100:Oxygen; D011817:Rabbits; D012987:Soil / Q000737:chemistry; D013696:Temperature; D013818:Thermogravimetry
chemical_list: D009930:Organic Chemicals; D012987:Soil; D002244:Carbon; D009584:Nitrogen; D010100:Oxygen
keywords: Aeration rate; Co-composting; Degradation; Kinetic modeling; Oil palm empty fruit bunch (EFB)