Particle size distribution in an efluent from an advanced primary treatment and its removal during filtration
Keyword(s):
The filtration efficiency of an Advanced Primary Treatment System (APT) was analyzed in terms of suspended solids concentration, particle size distribution and helminth eggs counts. A study was carried out on three one-metre deep sand filters with a specific size (ES) of 0.6, 0.8 and 1.2 mm. More than 50 runs were done with operating rate of 7, 10, 12 and 15 m/h. Basic design-related information was obtained for the APT system. A filter with a 1.2 mm ES provided the best effluent, with 0.1 Helminth egg/L. The average suspended solid concentration in the effluent was 39 mg/L. The most recommendable filtration rate was 10 m/h with a run time of 33 h. A study of the particle distribution was made for each step of the process based on size.
Keyword(s):
2000 ◽
pp. 257-268
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Keyword(s):
2015 ◽
Vol 93
◽
pp. 287-292
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Keyword(s):
2008 ◽
Vol 148
(1-4)
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pp. 19-26
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