title: Improving green waste composting by addition of sugarcane bagasse and exhausted grape marc.
abstract: The composting of lignocellulosic waste into compost is a potential way of sustainably disposing of a waste while generating a useful product. The current study determined whether the addition of sugarcane bagasse (SCB) (at 0, 15, and 25%) and/or exhausted grape marc (EGM) (at 0, 10, and 20%) improved the two-stage composting of green waste (GW). The combined addition of SCB and EGM improved composting conditions and the quality of the compost product in terms of temperature, water-holding capacity, particle-size distribution, coarseness index, pH, electrical conductivity, water-extractable organic carbon and nitrogen, microbial numbers, enzymatic activities, polysaccharide and lignin content, nutrient content, respiration, and phytotoxicity. The optimal two-stage composting and the best quality compost were obtained with the combined addition of 15% SCB and 20% EGM. With the optimized two-stage composting method, the compost matured in only 21days rather than in the 90-270days required for traditional composting.
authors.affiliation: College of Forestry, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Lu
authors.initials: L
authors.lastname: Zhang
authors.affiliation: College of Forestry, Beijing Forestry University, Beijing 100083, PR China. Electronic address: sunxy@bjfu.edu.cn.
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Sun
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D008031:Lignin; D009584:Nitrogen / Q000032:analysis; D010316:Particle Size; D031786:Saccharum / Q000737:chemistry; D012987:Soil / Q000737:chemistry*; D013696:Temperature; D027843:Vitis / Q000737:chemistry*
chemical_list: D012987:Soil; D002482:Cellulose; D008031:Lignin; C027433:bagasse; D009584:Nitrogen
keywords: Exhausted grape marc; Green waste; Sugarcane bagasse; Two-stage composting