EFFECT OF THE USE OF SLOW SAND FILTERSTOWARD DECREASING SALINITY LEVELS AT WELL AT GAMPONG UJONG BLANG SUB DISTRICT KUTABARO, ACEH BESAR

Abstract

The development of civilization as well as the increasing number of population inevitably add to fouling and contamination in the water. Water is a natural resource that circulates under the influence of the weather so there is something called " Hydrology Cycle ". This cycle is important becauseit issupplied inland water areas. The water will evaporate due to the heat of the sun. This evaporation occurs in surface water, which is in the upper soil layers (transpiration, respiration). Water can be classified into two; clean water and drinking water. Sources of water is sea water, the atmosphere, surface water, and groundwater. The problem in this research is anEffect of Usage Slow Sand Filter on Reducing Salt Levels In Well Water in Gampong Ujung Blang subdistrict Kuta Baro, Aceh Besar. The method in this study is (experimental) testing of chemicals (salinity) by means of laboratory tests, the results
of research (laboratory testing) that the salt content in the raw water taken from the public wells in Gampong Ujung Blang subdistrict Kuta Baru, Aceh Besar of 1,2 mg/l and after processing by using slow sand filter treatment system of the laboratory test results show salinity content of 0.3 mg/l, so that a decrease ratesalinity by using this treatment system is 90% .