TREATMENT OF DAIRY WASTE WATER USING BIODEGRADABLE MATERIALS IN UASB REACTOR AND MEASURING BIOGAS PRODUCTIONR. THENMOZHI, N. UMA AND T. MEENAMBAL
The biogas production was different for different substrates because the bacteria responsible for the breakdown of substrate were different. While methanogenic bacteria (amylolytic bacteria) is good for cow dung, (two bacterial isolates PRATIK-20 and VBC3) showed biogas production. proteolytic bacteria is best for poultry manures. In this study, poultry manures supply of these substrates can be a problem at times. Cow dung users can have a continuous supply of substrate from animals on a daily basis. This is one reason that the use of cow dung can be recommended for the long term use poultry, biogas production by this method would be the best as continuous organic loading of reactors would make available adequate biogas. This current research has demonstrated that dairy wastewater could be effectively treated an aerobically. By using the UASB reactor in anaerobic condition, the COD of wastewater was reduced (85%). The performed experiments allowed obtaining good results regarding application of the anaerobic dairy waste water treatment in a UASB reactor. Analysis of the results obtained in this investigation showed that the biogas obtained by anaerobic treatment with cow dung, poultry litter and water hyacinth was studied and poultry litter proved to be more effective in biogas production.
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