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Radiation Technology for Cleaner India
Apr 30, 2015

India enters into a new era of utilizing advanced technology of Radiation Processing for Hygieniesing Sewage Sludge by signing of MoU between Ahmedabad Municipal Corporation and Bhabha Atomic Research Centre. Bhabha Atomic Research Centre will provide all technical and scientic support for setting up a 100 tons per day dry sewage sludge hygienisation Cobalt-60 Gamma Irradiation Plant at Ahmedabad. Largely, sludge is disposed in unoraganized manner resulting in environmental pollution and spread of diseases.

  • The sludge produced carries a heavy microbiological load and therefore its disposal has been a challenge to the urban development authorities.

  • Bacterial counts including pathogens generally observed in sludge can vary between 105 to 109 per gram.

  • Sludge also contains worms, ova, viruses, helminthes, weeds etc.

  • It also contains toxic heavy metals and organic pollutants like pesticides, polyaramatic hydrocarbons, drugs and other persistent pollutants.

  • Sludge is a rich source of many macro (Nitrogen, Phosphorous, Potassium), micro nutrients (Zinc, Iron, Copper, Manganese) and organic carbon essential for soil.

  • If the sludge can be treated in effective and economic way to meet the prescribed norms, it can be recycled by safely applying it on land for various applications including agricultural.

  • High energy gamma radiation from Cobalt-60 can kill pathogens, reduce odours and degrade organic chemival contaminants and thus making sludge safer for use or disposal.

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