Get Elimination of Micro-Organisms by Drinking Water Treatment PDF

By W. A. M. Hijnen

ISBN-10: 1843393735

ISBN-13: 9781843393733

The general target of this publication is to give default values for the micro-organisms removing or inactivation credits of universally used methods in water therapy (MEC or MIC). those MEC or MIC values were calculated from foreign literature info which printed a excessive edition in capacities or logremoval. The parameters and method keep watch over parameters affecting the offered capacities are defined. This new version describes the state of the art development in study on traditional remedy, coagulation and flocculation, quick granular filtration, sluggish sand filtration and UV disinfection. This name belongs to KWR Watercycle study Institute sequence

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4 Coagulation and flocculation Coagulation and flocculation is usually applied in combination with rapid sand filtration, as separate process or as in-line process in the filter bed (direct filtration). The combination of coagulation and filtration is indicated as conventional treatment and is discussed in the former chapter. A number of different flocculation systems are used in practice such as lamellae separation (LAM), dissolved air flotation (DAF), sludge blanket clarifier (SBC), tube-settlers (TUB) and sedimentation in open reservoirs or in a small scale jar-test (SED).

2003; ÃFS ¼ full-scale index; the higher the number, the more equivalent with full-scale situation; bindicator bacteria (E. coli, coliforms, faecal streptococci) Viruses 5 DEC (log) 4 3 2 1 SE D jar -te st SE Do pen -te st jar SE D SE D op en t t tes tes ar- ar Dj SE SE DJ t LA M tes SE D Jar SE D 04 -0. 2 Bacteria and bacterial spores Evaluation of twelve studies gave DEC-values for the elimination of indicator bacteria and bacterial spores (spores of sulphite-reducing clostridia SSRC or Clostridium perfringens and aerobic spores) by Coagulation and flocculation 25 coagulation processes.

Kelley (1995; 1996), LeChevallier et al. (1991), Payment and Franco (1993) and States (1997) determined the elimination of environmental (oo)cysts by full-scale 26 Elimination of micro-organisms by Drinking Water Treatment Processes coagulation processes. Logsdon et al. (1985) studied the elimination of Giardia and Cornwell et al. (2001) and Dugan et al. (2001), Edzwald and Kelley (1996), Edzwald et al. (2001;2003), Patania et al. (1995) of Cryptosporidium spiked to the influent of a pilot plant.

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Elimination of Micro-Organisms by Drinking Water Treatment Processes by W. A. M. Hijnen


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