摘要：UASB reactor is one of the most efficient reactors among the various bioreactors because it requires less “energy consumption” and less maintenance. It is highly energy efficient. It can consume more and more organic matter and the sludge generation is less as compared to that of the aerobic reactor, this is because of the fact that the catabolism activity in the methanogenic metabolism (anaerobic reaction) is greater than in aerobic metabolism. It produces methane during the reaction, which in turn can be utilized as a fuel. The problem that we have to face with the UASB reactor is the long startup time. It needs large startup time for the proper functioning of the reactor. If we add some pre-digested organic waste (which is rich in anaerobic microorganism) in the reactor, it will make our reaction much faster than it was. Here we are testing the design of UASB on the basis performance (efficiency) of the reactor. During the experiment we found that for the influent 473.9mg/L - 513.0mg/L the COD reduces to 242.4mg/L - 248.6mg/L at the HRT of 14.6 h. As a result we found that the efficiency of the UASB increases from 51.5% to 71.2% for the same design of a reactor. Even the efficiency of the ‘Mixed’ seed for the granulation is 1000% as compared to the cowdung because it needs no time for granulation.
关键词：Anaerobic treatment; Upflow anaerobic sludge blanket reactor; COD; BOD
