| Résumé: | Population growth is so fast and not followed by the production of clean,
potable water. To get a short-term solution some research is done to produce
clean water through a simple process that uses a ceramic filter. One problem that
often arises is that small production approximately 3 L / hour, research is done to
improve the performance of ceramic filters, especially in the improvement of the
production.
The study was conducted using a rotating ceramic filter with a filter
having a length of 51 cm, a diameter of 28 mm, an outer diameter of 65 mm.
Discharge flowed into the filter varied namely 0.6, 0.8, 1 gpm (gallons per
minute). Each filter operated at 6 variations in the speed of rotation, which is
silent, 15.5 rpm, 30 rpm, 41.5 rpm, 59 rpm, and 74.5 rpm. Types of feed water
used for this research is the Code River water held in Sleman, Yogyakarta.
From the study, it is found that brushing treatment on ceramic filters can
reduce the pressure on the filter that slows the formation of fouling and enhance
the flux value. Higher rotation speeds can also inhibit the rate of formation of
fouling so much slower decline in flux values. Optimal flux values obtained at 1
gpm discharge operated at 74.5 rpm rotation. This discharge has 38.93
L/m2.menit flux in the first minute and 15.23 L/m2.menit in the 90th minute.
High flux value is due to take place in a turbulent flow with Taylor Vortex,
which can reduce the rate of fouling on the membrane surface.
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