MUMBAI, India, July 25 -- Intellectual Property India has published a patent application (202411004793 A) filed by Council Of Scientific And Industrial Research, New Delhi, on Jan. 23, 2024, for 'an integrated device for odour abatement.'
Inventor(s) include Rames Chandra Panda.
The application for the patent was published on July 25, under issue no. 30/2025.
According to the abstract released by the Intellectual Property India: "Leather tanning involves many operations where odourous gases evolve which make the air polluted. Present innovation relates to integral features/ functions of odour abatement system comprising of odour-collecting hood, conveyor piping, blower, humidifier, gas-sensors, control panel, biofilter inhabited by microbial-culture & equipped with continuous pH-moisture-temperature monitors, automated nutrient supply system with digital control devices, is to abate odourous gases originated from industrial sources. The said integral device relates to joining of different functional units to give a shape of an integrated facility to remove odour from a leather making units. The facility takes odourous gases as feed and emits clean gas (reducing pollutant components of NH3/H2S upto 94% and VOC upto 90% of odourous-feed) to atmosphere by the use of a biofilter. The hood, nutrient-flow controlling devices and biofilter claim the novelty. The flow-path of waste gases has been partitioned to maintain EBRT of about 110 sec. The integrated system not only reduces power consumption (upto 19%) of suction blower due to use of a smooth hood allowing gaseous flow to go smoothly and allows nutrient flows at optimal rates, but also abates odour comprising of H2S, NH3 and VOC to 94-90%. The earlier prior-art / system could remove only H2S and NH3. But the microbial non-pathogenic strain used here can remove all the 3 components in a tannery environment. This system also has online monitoring and feedback mechanism for efficient control of flow rate and thereby residence time of the gas inside filter for treatment."
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