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Title

Co-composting of sugarbeet vinasse: influence of the organic matter nature of the bulking agents used

AuthorsMadejón, Engracia ; Díaz Blanco, M. J.; López Núñez, Rafael ; Cabrera, Francisco
Issue Date2001
PublisherElsevier
CitationBioresource Technology 76(3): 275- 278 (2001)
AbstractTwo composts were obtained by co-composting of a concentrated depotassified beet vinasse and two agricultural solid residues with different organic matter nature: grape marc (GM; lignin waste) and cotton gin trash (C; cellulosic waste). Composting was carried out in aerated piles with mechanical turning, in controlled conditions during 4 months. After 71 days of composting, a new addition of vinasse similar to the initial addition was made. Changes in temperature, pH and inorganic nitrogen followed a similar path for both mixtures. However, organic matter fractions showed different behaviour depending on the material co-composted with vinasse. Lower organic matter degradation was observed when GM was used as bulking agent due to its high lignin content. No phytotoxicity was detected in the end products. The chemical and physical properties of both vinasse composts suggest their possible use as fertiliser. Copyright (C) 2000 Elsevier Science Ltd. | Two composts were obtained by co-composting of a concentrated depotassified beet vinasse and two agricultural solid residues with different organic matter nature: grape marc (GM; lignin waste) and cotton gin trash (C; cellulosic waste). Composting was carried out in aerated piles with mechanical turning, in controlled conditions during 4 months. After 71 days of composting, a new addition of vinasse similar to the initial addition was made. Changes in temperature, pH and inorganic nitrogen followed a similar path for both mixtures. However, organic matter fractions showed different behaviour depending on the material co-composted with vinasse. Lower organic matter degradation was observed when GM was used as bulking agent due to its high lignin content. No phytotoxicity was detected in the end products. The chemical and physical properties of both vinasse composts suggest their possible use as fertilizer.
URIhttp://hdl.handle.net/10261/60224
DOI10.1016/S0960-8524(00)00126-7
Identifiersdoi: 10.1016/S0960-8524(00)00126-7
issn: 0960-8524
e-issn: 1873-2976
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