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Composting of manure using olive mill wastewater for moisture control

Composting has been widely used for converting organic wastes into relatively stable products for use as fertiliser or soil additives. Moisture has been referred to as a critical factor in optimising composting systems because the decomposition of organic matters depends on the presence of water to support microbial activity.

Olive mill wastewater may be a potential source of water for moisture control during composting. In addition, OMW contains about 1,0 g / L of Nitrogen, 0.4 g / L of phosphorus and 5.0 g / L of potassium so it is possible to increase the nitrogen, phosphorus and potassium concentrations of final product. During this study, three different types of manure were used, pig, cow and poultry manure, each one at about 10m³, mixing with chopped green garden wastes as bulking agent, at the same volume (1:1, v/v), in an effort to improve the composting procedure. During this three month procedure, quantities of OMW were added in order to correct moist ure, when necessary and add nutrients as P and K.

Copyright:	© European Compost Network ECN e.V.
Quelle:	Orbit 2014 (Juni 2014)
Seiten:	0
Preis:	€ 0,00
Autor:	Fenia Galliou Dr. Michael Fountoulakis T. Manios
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