El impacto de la ganadería y la agricultura en los ecosistemas terrestres.-Minimización de los impactos de la ganadería. Tratamientos del purín y reutilización

Abstract

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%.