Anaerobic waste water treatment is applied in many industrial areas for waste water purification of water containing large amounts of organics (COD > 2.000 mg/L). This technique is applied to circumvent the high operational costs of aerobic waste water treatment and to produce energy in the form of biogas. For this purpose a number of UASB reactor types can be used. Additional advantages of this approach are : • reduced sludge production and • revenues from the granular sludge. Anaerobic waste water treatment represents a process in which bacteria (in the absence of oxygen) transform the organic matter present in biogas, i.e. methane and carbondioxide (CH4 & CO2). Read more