The two columns of the treatment cum filtration unit were washed with alcohol to make it sterile and then rinsed with sterile distilled water. The laboratory scale 1.5 L reactor (primary tank) was then fed with 1 L autoclaved untreated dairy wastewater. The autoclaved effluent was cooled to room temperature and then added to the reactor. Then 10 ml of microbial culture was added to the effluent. An aerator was inserted into the reactor and the open top portion of the reactor was covered with aluminum foil paper. The aerator was used to maintain desired level of dissolved oxygen above 5 mg/L in the effluent and to support the proper growth and survival of the aerobic microorganisms used for the study. The aeration was provided for a period of 48 h. The effluent was given a retention time of 48 h in the primary tank where the microorganisms were allowed to carry out degradation. After 48 h, the aeration was stopped and effluent was allowed to stand for 1 h to allow settling of the sludge formed. The treated effluent from primary tank was then allowed to flow into secondary tank through outlet pipe of the primary tank. The filtration was carried out in secondary tank containing one inch layer of activated charcoal powder at the bottom of bottle and one inch layer of sawdust above it. On completion of filtration, treated effluent was tested for various physicochemical parameters in laboratory.