Affiliation:
1. Istituto di Biochimica ed Ecofisiologia Vegetali, Consiglio Nazionale delle Ricerche, Area della Ricerca di Roma, Via Salaria km 29.300; 00016 Monterotondo Scalo (Roma), Italy
Abstract
Oxygen consumption, microbial growth, lignin and phenol degradation, urease, protease and nitrogenase activity were determined during the composting of an olive- mill wastewaters (OMW)—wheat straw mixture. Oxygen consumption, microbial growth and urease activity were greatly enhanced during the thermophilic phase, reaching their maximum in about three weeks. Casein-hydrolysing protease showed a high initial activity which sharply decreased after 2 weeks. At the end of the thermophilic phase both phenols and lignin were reduced by about 70%. Composting enhanced diazotrophic microflora as indicated by nitrogenase activity which increased at the end of the thermophilic phase. © 1997 ISWA
Subject
Pollution,Environmental Engineering
Reference20 articles.
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