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Role of Protozoa in the Aerobic Purification of Sewage

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Abstract

DURING recent years, there has been increasing amount of evidence regarding the importance of protozoa in the aerobic purification of sewage1–4 and, more recently, some quantitative observations on protozoa in determining the condition of sludge and quality of effluent have been recorded5–10. The evidence so far obtained has, however, been only indirect, chiefly owing to the difficulty in separating the protozoa from the associated bacteria. This has now been achieved and the object of this note is to show that the isolated protozoa can bring about practically all the changes associated with the purification. The part played by the bacteria is almost negligible.

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References

  1. Richards, E. H., and Sawyer, G. C., J. Soc. Chem. Ind., 41, 62T (1922).

    Article  Google Scholar 

  2. Cramer, R., Ind. and Eng. Chem., 23, 309 (1931).

    Article  CAS  Google Scholar 

  3. Ardern, A., and Lockett, W. T., Proc. Inst Sew. Purif., 1 (1936).

  4. Baritt, N. W., Ann. Appl. Biol., 27, 151 (1940).

    Article  Google Scholar 

  5. Pillai, S. C., Current Sci., 10, 84 (1941).

    Google Scholar 

  6. Pillai, S. C., Indian Med. Gazette, 77, 118 (1942).

    CAS  Google Scholar 

  7. Pillai, S. C., Current Sci., 11, 437 (1942).

    Google Scholar 

  8. Reynoldson, T. B., Nature, 149, 608 (1942).

    Article  ADS  CAS  Google Scholar 

  9. Pillai, S. C., and Subrahmanyan, V., Nature, 150, 525 (1942).

    Article  ADS  CAS  Google Scholar 

  10. Pillai, S. C., and Subrahmanyan, V., Science and Culture, 8, 376 (1943).

    Google Scholar 

  11. Russell, E. J., and Hutchinson, H. B., J. Agric. Sci., 3, 111 (1909).

    Article  Google Scholar 

  12. Fowler, G. J., J. Inst. Sanit. Eng., 20, 29, 39 (1916).

    Google Scholar 

  13. Fowler, G. J., J. Soc. Chem. Ind., 41, 72T (1922).

    Google Scholar 

  14. Fairbrother, T. H., and Renshaw, A., J. Soc. Chem. Ind., 41, 134T (1922).

    Google Scholar 

  15. Jenkins, S. H., Nature, 150, 607 (1942).

    Article  ADS  Google Scholar 

  16. Hardin, G., Nature, 151, 642 (1943).

    Article  ADS  Google Scholar 

  17. Watson, J. M., Nature, 152, 693 (1943).

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Biochemistry, Indian Institute of Science, Bangalore

    S. C. PILLAI & V. SUBRAHMANYAN

Authors
  1. S. C. PILLAI
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  2. V. SUBRAHMANYAN
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PILLAI, S., SUBRAHMANYAN, V. Role of Protozoa in the Aerobic Purification of Sewage. Nature 154, 179–180 (1944). https://doi.org/10.1038/154179b0

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