PECULIARITIES OF HORIZONTAL FILTRATION THROUGH FLOATING LOADING WITH NATURAL WATER SOFTENING

Abstract

The analysis of parameters to perform the horizontal filtration using filters with floating loading for natural water softening in technological schemes with or without preliminary clarification. The article gives the peculiarities to design horizontal filters in the natural water softening technological schemes: the size of the floating loading section is 0,5…1,0m (length), 0,5 m (height); diameter of grainy filling 1,0…2,0mm. We have demonstrated the high efficiency of horizontal filtration: high filtration speed, extended duration of filter cycle. Horizontal filtration with water softening in technological schemes without preliminary clarification ensures over 90% efficiency when filtration speed does not exceed 5,0 m/sec, duration of filter cycle is 8 hours. Filtration speed increasing to 30,0 m/hour leads the losses of head rise to 50,0 sm/hour. Horizontal filtration with water softening in technological schemes with preliminary clarification ensures over 95% efficiency when filtration speed is over 15,0 m/sec, duration of filter cycle exceeds 12 hours. The losses of head rise do not exceed 4,0 sm/hour.