Browsing by Subject "pig slurry"

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    El impacto de la ganadería y la agricultura en los ecosistemas terrestres.-Minimización de los impactos de la ganadería. Tratamientos del purín y reutilización
    Caballero, A.; Faz, A.; Bautista Lobera, J.; Palop, A.; Universidad de Murcia
    ABSTRACT In this study, wastewater from farms was treated using constructed wetlands, in a experimental farm, CIFEA, located in Lorca (Murcia), which is an important pig production area (southeast Spain). We have used horizontal sub-surface flow constructed wetlands with Phragmites australis, adapted to the semiarid climate of the area. We have obtained important removals of electrical conductivity by 28%, total suspended solids by 93%, sedimentable solids by 100%, chemical oxygen demand by 87%, total phosphorus by 85%, copper by 92%, zinc by 94% and total nitrogen by 81%.
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    El impacto de la ganadería y la agricultura en los ecosistemas terrestres.-Utilización sostenible de purines de cerdo, con y sin tratamiento, como enmienda orgánica en cultivos de almendro.
    Domínguez Oliver, S.G.; Faz Cano, A.; Universidad de Murcia
    RESUMEN This study consists in the use of different forms of slurry, as an organic fertilizer, on almond trees located in La Aljorra (Cartagena, Murcia). The slurry used comes from a farm near the area of study, which has a treatment system composed by tree parts: a phase separator, a bioreactor and 5 constructed wetlands of vertical flow. Different phases of slurry are obtained from each part of the system. The results show the reduction of most of the parameters like salinity, BOD5, QOD, nitrates, etc. The use of these effluents as an organic amend in different doses, supposes a sustainable way of management of these residues; at the same time it improves the soil properties and the agronomic quality of the almond tree crop.