Studying the possibility of wastewater treatment of alcohol distillatory units using UASB method Pilot study

One of the most important problems in industrial developments is the environmental difficulties resulted from industrial activities classified into the air industrial pollutions, wastewaters and sludge. Alcohol distillatory units, as a basic industry in Iran, have a great deal of worth by transforming sugar industry's wastewater (molasses) to a fundamental material (Alcohol) of many industries and activities. The wastewater resulted from alcohol distillatory units have a great amount of pollution. To this extent its treatment method should be selected according to the special studying to choose the best method and the most effective designing condition. In this studying, the possibility of wastewater treatment of Khorasan Alcohol distillatory unit is examined by making an industrial pilot plant in volume of 1.3 m3, equipped with uniform distribution and collection system, gas collector and flare, equalization tank, heater and recycling pump by using UASB method. In this research, granulating process was started with an amount of mass load about 5.3 (kg COD/m3.day) and the primary granules were formed completely in a mass load about 8 (kg COD/m3.day). Afterward, by increasing of the loading up to the 16 (kg COD/m3.day), the treatment of the wastewater has become possible by keeping granules' quality and sludge's specialties. In this study, pilot plant's flare had a stable fire in a charge about 11.3 (kg COD/m3.day). In this research, in the maximum loading, the treatment’s efficiency obtained on the basis of COD removal was equal to 95.4%.

Keywords:

Industrial Wastewater , Alcohol Distillatory Unit , Uasb , Granulated Sludge