Would make (2004), quotation that the pollution of the water results of the introduction of residues in the same one, in the substance form or energy, in order to become it harmful the man and other forms of life, or improper for one determined use established for it. The Brazilian food industry put into motion in 2007 something around 230,6 billion Reals, being equivalent to a participation in the GIP in the 8% order. The segment of laticnios if finds enters the three main sectors of the food classroom. According to data of the Agency of Farming Defense of the Bahia (Adab), tied the Secretariat of Agriculture (Seagri), in 2007 the number of laticnios of the state was of 60 (Adab, 2007). Of these, more than 80% correspond the micron and small companies who in its totality, do not carry through no type of treatment of its effluent ones, fact explained mainly for financial and technological lacks. In the industry of improvement of milk, the processes, operations and occurrences that generate or can influence significantly the effluent liquids are described as: of laudering and cleanness, represented for the enxaguamento for removal of residues of the milk and laudering of installations as a whole; emptyings and spillings, from you neglect in the execution of operations, provoking the milk emptying in the tubings or overflow of tanks; of discarding and the discharge, represented for the discarding of leitelho, acid milk and mainly for the milk serum (AXE et. al., 2002). Had to the raised nutritional values and by its raised organic loads, the serum does not have to be mixed to the excessively effluent ones of the industry, having to be caught, to be lead separately, in way that can be used to advantage for manufacture of other products, or the direct exploitation in the animal feeding (MINES SURROUNDING/CETEC, 1998, vol.