Residuos orgánicos de origen urbano e industrial que se incorporan al suelo como alternativa económica en la agricultura

Abstract

The world populations increase, and in consequence the explosive industrial and urban development, has generated a high volume of products considered residuals. These materials should eliminate the ecosystems to avoid that their presence becomes a degrading factor of the quality of the environmental and polluting materials. On the other hand, the enormous necessities of production of food have taken an intensive use of the earth; being caused an exhaustion of the soil due to the exploitation, of big quantities of nutritious elements. A progressive disappearance of the organic fraction of the soil also takes place. This problem and the knowledge about the enormous quantities of waste, made that the agricultural use of this waste would lead to a solution alternative, where the cycling of nutrients assures bigger efficiencies of operation of the system. But it is convenient to delimit that, the arrival at the soil of fresh materials or with a grade of transformation incomplete should be done with certain reservation, by virtue of possible detrimental effects, derivative of the presence, in these materials, of compound or toxic elements or pollutants. A novel valorization of the organic fraction of the residuals solid urban is treated anaerobically. The organic residuals of industrial urban origin seek to incorporate to the soil like an economic alternative in the agriculture like organic manure or substrate.