The accelerated development and the uncontrolled growth of the world population requires increased production of raw materials to meet all the needs and requirements of society. The constant disposal of wastewater for domestic and industrial use on the tributaries, has caused great damage to rivers, affecting both wildlife that feeds in the same way as humans who consume it, therefore it has become need to give back to nature some of the benefits it provides, building treatment plants wastewater After solving the problem of pollution in the water, seek what to do with the solid residue left on the ground. This document discloses a comparison of the development of vermicomposting in Colombia and Europe, as a technique for recovery of organic soils, consisting in growing the California red worms which the biosolids consumed, the converted through digestion in humus.