Changes in the level of alkaline and acid phosphatase activities during green wastes and sewage sludge co-composting

Détails

ID Serval
serval:BIB_3E30C1202BC8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Changes in the level of alkaline and acid phosphatase activities during green wastes and sewage sludge co-composting
Périodique
Bioresource Technology
Auteur(s)
Albrecht R., Le Petit J., Calvert V., Terrom G., Perissol C.
ISSN-L
0960-8524
Statut éditorial
Publié
Date de publication
2010
Peer-reviewed
Oui
Volume
101
Pages
228-233
Langue
anglais
Résumé
The aim of this work was to study the activity level of alkaline and acid phosphatases during the composting of green wastes and sewage sludge and to determine relationships between biotic and abiotic properties of compost and phosphatase activities. This study has revealed a noticeable separation of phosphomonoesterase activities into two distinct phases during composting. Alkaline and acid phosphatase activities were high during the first month of composting and then declined up to the end of the process. Both phosphatase activities were significantly correlated with a group of variables which are clearly related to advancement Of Maturity during the composting process: C/N, respiration, cellulase, protease, phenoloxidase activities, HA and Global Index of Composting Evolution (GICE) resulting from 14 biological and chemical parameters. This study has also revealed the complexity of factors regulating turnover of P in compost process since phosphatase activities appeared constrained across two thresholds: 60170 and 100 mu g of inorganic P g(-1) DM for activation and repression, respectively. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved,
Création de la notice
13/09/2011 13:34
Dernière modification de la notice
20/08/2019 13:34
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