RANCANG BANGUN ALAT FILTRASI PENYEDIA AIR SIAP MINUM DENGAN SISTEM REVERSE OSMOSIS

Drinking water is a very basic basic need, and cannot be replaced by other elements. The needs of living things for drinking water are very many, not only needed by humans but also needed by animals and plants. To produce good and
quality drinking water in accordance with health standards that have been set by the Regulation of the Minister of Health of the Republic of Indonesia No. 492 / MENKES / PER / IV2010, a proper water treatment process is needed. This
research activity is aimed at designing a filtration device that is able to process dirty water into clean ready-to-drink water using reverse osmosis (RO) technology. The
parameters tested are biological, physical, and chemical parameters in accordance with the requirements for good drinking water set by Permenkes No. 492 of 2010.
This study used 3 water source samples to be tested, namely: the first sample was a relatively clear and odorless water sample but the bacteria content was above the
standard, the second sample was turbid but odorless water, while the third sample was odorous water. After going through the filtration process with the tool made,
ready-to-drink water is able to be produced with the condition that the bacterial level (total coliform) drops from 200/100ml to 0/100ml. In addition, the turbidity
level also dropped from 8 Nephelometric Turbidity Units (NTU) to 0 NTU, and the water condition also changed from smelly to odorless. So it can be concluded that
the filtration device made and tested is able to produce ready-to-drink water according to the standards of Permenkes No. 492 of 2010.

Keywords : Drinking water, reverse osmosis, filtration,
membrane technology