Clarification Method of Plluted Water from Paper Mills with Conbination of Beer Effluent

The main components of polluted water discharged from paper mills are hemicellulose, fiber-fine and polyphenolic compounds, such as lignosulfonate and Kraft lignin.Beer mills discharge polluted water which contains protein. Thus the mixture of both polluted waters with addition of 1 % Alum produced successfully large amount of precipitant. By contrary, there was no precipitation without addition of Alum. However, the addition of the Alum alone did not contribute to the precipitation of paper mill effluent. This means that the combination with beer effluent is essential.In addition to this, the presence of clay colloid accelerated the settling time of pollutant. Furthermore, it can be suggested that the precipitant is useful for carrier of control release herbicide and also for filler of paper board.