TOXICITY STUDIES OF PHOTO-FILM WASTES


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Authors

  • K P Krishnamoorthi Central Public Health Engineering Research Institute, Nehru Marg, Nagpur
  • W M Deshpande Central Public Health Engineering Research Institute, Nehru Marg, Nagpur
  • G J Mohanrao Central Public Health Engineering Research Institute, Nehru Marg, Nagpur

Abstract

The photo-film industry discharges three types of wastes, all of which are toxic to
fish to some extent. The effluents in descending order of toxicity are the laboratory
effluent, the emulsion wash water, and the white water, with their respective 48 hr TLm
concentrations at 1, 5 and 10 per cent. A mixture of the wastes composited on the basis
of their flows had a 48 hr TLm of 5 per cent.
Toxicity of the emulsion wash water was primarily due to the undissociated
ammonia. Laboratory effluent toxicity was primarily due to hydroquinone and metol
which showed synergistic effects. Thiosulphate and carbonate and to a much smaller
extent sulphate had antagonistic effects on the toxicity of hydroquinone and meto!.
Coagulation with aluminium sulphate and settling reduced tlie toxicity of the wastes
considerably.

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Author Biographies

  • K P Krishnamoorthi, Central Public Health Engineering Research Institute, Nehru Marg, Nagpur
    Central Public Health Engineering Research  Institute, Nehru Marg, Nagpur
  • W M Deshpande, Central Public Health Engineering Research Institute, Nehru Marg, Nagpur
    Central Public Health Engineering Research  Institute, Nehru Marg, Nagpur
  • G J Mohanrao, Central Public Health Engineering Research Institute, Nehru Marg, Nagpur
    Central Public Health Engineering Research  Institute, Nehru Marg, Nagpur

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Issue

Vol. 18 No. 1 & 2 (1971)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Krishnamoorthi, K. P., Deshpande, W. M., & Mohanrao, G. J. (2011). TOXICITY STUDIES OF PHOTO-FILM WASTES. Indian Journal of Fisheries, 18(1 & 2), 22-32. https://epubs.icar.org.in/index.php/IJF/article/view/13161