A systematic review on the composting of green waste : Feedstock quality and optimization strategies

Copyright © 2018 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 77(2018) vom: 15. Juli, Seite 486-499
1. Verfasser: Reyes-Torres, M (VerfasserIn)
Weitere Verfasser: Oviedo-Ocaña, E R, Dominguez, I, Komilis, D, Sánchez, A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Review Systematic Review Composting End-product quality Feedstock quality Green waste Optimization strategy Soil Solid Waste mehr... Phosphorus 27YLU75U4W Nitrogen N762921K75
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520 |a Green waste (GW) is an important fraction of municipal solid waste (MSW). The composting of lignocellulosic GW is challenging due to its low decomposition rate. Recently, an increasing number of studies that include strategies to optimize GW composting appeared in the literature. This literature review focuses on the physicochemical quality of GW and on the effect of strategies used to improve the process and product quality. A systematic search was carried out, using keywords, and 447 papers published between 2002 and 2018 were identified. After a screening process, 41 papers addressing feedstock quality and 32 papers on optimization strategies were selected to be reviewed and analyzed in detail. The GW composition is highly variable due to the diversity of the source materials, the type of vegetation, and climatic conditions. This variability limits a strict categorization of the GW physicochemical characteristics. However, this research established that the predominant features of GW are a C/N ratio higher than 25, a deficit in important nutrients, namely nitrogen (0.5-1.5% db), phosphorous (0.1-0.2% db) and potassium (0.4-0.8% db) and a high content of recalcitrant organic compounds (e.g. lignin). The promising strategies to improve composting of GW were: i) GW particle size reduction (e.g. shredding and separation of GW fractions); ii) addition of energy amendments (e.g. non-refined sugar, phosphate rock, food waste, volatile ashes), bulking materials (e.g. biocarbon, wood chips), or microbial inoculum (e.g. fungal consortia); and iii) variations in operating parameters (aeration, temperature, and two-phase composting). These alternatives have successfully led to the reduction of process length and have managed to transform recalcitrant substances to a high-quality end-product 
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650 4 |a Systematic Review 
650 4 |a Composting 
650 4 |a End-product quality 
650 4 |a Feedstock quality 
650 4 |a Green waste 
650 4 |a Optimization strategy 
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700 1 |a Oviedo-Ocaña, E R  |e verfasserin  |4 aut 
700 1 |a Dominguez, I  |e verfasserin  |4 aut 
700 1 |a Komilis, D  |e verfasserin  |4 aut 
700 1 |a Sánchez, A  |e verfasserin  |4 aut 
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