Abstract:
Treatment of sea water requires great attention for the removal of present impurities and pollutant. During the treatment of sea water one the basic problem is removal of suspended particle. There are several processes present for the removal of suspended particle such as reverse osmosis, membrane filtration, ion exchange process etc. All these process contain the porous polymer membrane for the removal of fine suspended particle range 0.2iim to 201.tm. But high concentration of fine suspended particle in process sea water is result in membrane fouling which require high maintenance cost of the membrane as well as low cycle time of the process.
The objective of this current experimental work to discusses fine suspended particle removal from water by filtration through low cost coarse media. A laboratory scale technique was used to remove fine suspended particle from fine suspended particle bearing water in the case of Calcite, Anthracite and Garnet and a filtration column is design on high specific flow rate of 30 m3/m2.h .The result was obtained that for very low size media (0.3mm to 0.45mm) the removal for Calcite is marginally high compare to Anthracite and quite high compare to Garnet. It can be observed from the result that the removal mechanism were due to the effect of rough solid surface and the porous structure of Calcite, Anthracite and Garnet.
Filtration result indicates that at an input with fine suspended particle concentration of 20 mg/dm3 and particle size in the range of 0.5micron to 20 micron, a good removal was observed with the Calcite as compare to the Anthracite and Garnet at high specific flow rate of 30 m3/m2.h. Studies on the effect of different parameter on the removal performance of fine suspended particle shows that a smaller particle size, a greater filter depth, shorter cycle time gave an advantage in the removal efficiency.
