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Sludge volume index

A very important parameter ia routine control of the process is the ratio of the MLSS volume to the dry weight, called the Sludge Volume Index (SVI). A weU operating plant has an SVI of 50 to 100, but operational difficulties occur when the SVI approaches 150. At this poiat the sludge settles poorly. [Pg.284]

The settleable fraction is the volume of the solids after settling for 30 minntes in a cone-shaped vessel called an Imhoff cone. The volume of solids that settled, in milliliters, divided by the corresponding grams of solids mass is called the sludge volume index, SVI. Settleable solids are an approximate measure of the volume of sludge that will settle by sedimentation. Figure 2.4 shows a photograph of Imhoff cones. [Pg.157]

Sludge volume index (SVI)—The volume of solids that settled, in milliliters, divided by the corresponding grams of solids mass. [Pg.192]

MLSS = Mixed liqour suspended SVI = Sludge volume index... [Pg.1028]

The Mohlman index or sludge volume index (SVI) expresses the volume of 1 g of activated sludge settled for 30 min and is calculated by the ratio ... [Pg.112]

Operating parameters such as SET, dissolved oxygen (DO), MLSS, sludge volume index (SVI), suspended solids removal. The two last parameters are important in CAS processes where secondary clarification is employed for the solids/liquid separation (Rossine/a/., 1982 Santos and Judd, 2010 Sterritt and Lester, 1981). [Pg.278]

See other pages where Sludge volume index is mentioned: [Pg.478]    [Pg.1178]    [Pg.1186]    [Pg.850]    [Pg.181]    [Pg.184]    [Pg.230]    [Pg.475]    [Pg.476]    [Pg.29]    [Pg.31]    [Pg.363]    [Pg.188]    [Pg.122]    [Pg.521]    [Pg.135]    [Pg.167]    [Pg.275]    [Pg.628]    [Pg.122]    [Pg.5060]    [Pg.329]    [Pg.3]    [Pg.391]   
See also in sourсe #XX -- [ Pg.112 ]



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