Rotavirus removal in waste stabilization ponds is a relatively slow process: in a series of ten ponds (a 1-d anaerobic pond followed by nine 2-d ponds) its numbers were reduced from 1.4 × 105 per litre to zero, and in an “innovative” series (a 1-day anaerobic pond, 3-d facultative pond, 3.8-d, 3-d and 5-d maturation ponds) from 5.1 × 104 per litre to <5 per litre. Faecal coliforms were better indicators of rotaviruses than was Clostridium perfringens .
Rotavirus removal in experimental waste stabilization pond systems with different geometries and configurations
J. I. Oragui, H. Arridge, D. D. Mara, H. W. Pearson, S. A. Silva; Rotavirus removal in experimental waste stabilization pond systems with different geometries and configurations. Water Sci Technol 1 June 1995; 31 (12): 285–290. doi: https://doi.org/10.2166/wst.1995.0497
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