Combined electron-beam and coagulation purification of molasses distilleryslops. Features of the method, technical and economic evaluation of large-scale facility

The paper summarizes the results obtained from the study on combined electr on-beam and coagulation method for purification of molasses distillery slop s from distillery produced ethyl alcohol by fermentation of grain, potato, best and some other plant materials. The method consists in preliminary mix ing of industrial wastewater with municipal wastewater, electron-beam treat ment of the mixture and subsequent coagulation. Technical and economic eval uation of large-scale facility (output of 7000 m(3) day(-1)) with two power ful cascade electron accelerators (total maximum beam power of 409 kW) for treatment of the wastewater by the above method was carried out. IL was cal culated that the cost of purification of the wastes is equal to 0.25 US$ m( -3) that is noticeably less than in the case of the existing method. (C) 20 01 Elsevier Science Ltd. All rights reserved.