Quantification of pathogenic micro-organisms in the sludge from treated hospital wastewater

• Autores: S.-T. Lin, C.-T. Tsai, J.-S. Lai
• Localización: Journal of applied microbiology, ISSN 1364-5072, Vol. 85, Nº 1, 1998, págs. 171-176
• Idioma: inglés
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• Resumen

  • The sludge from hospital waste treatment facilities is a potential source of infectious organisms. The average numbers of micro‐organisms in the sludge of hospital wastewater in Taiwan were as follows: total count 8·1 × 107 cfu g−1 (dry weight of sludge), and 1·4 × 106, 3·6 × 105, 1·6 × 105, 2·2 × 105 and 5·5 × 104 cfu g−1 (dry weight of sludge) for total coliforms, faecal coliforms, faecal streptococci, Pseudomonas aeruginosa and Salmonella spp., respectively. Salmonella spp. were detected in 37% (10 of 27) of the sludges from hospital wastewaters. Therefore, the treatment of such sludge to reduce pathogenic micro‐organisms should be considered.