DESALINASI AIR ASIN DENGAN PROSES DISTILASI MENGGUNAKAN ENERGI MATAHARI DALAM KONDISI UNTUK MEMPEROLEH GELAR MAGISTER DARI (PROGRAM STUDI MAGISTER TEKNIK LINGKUNGAN) INSTITUT TEKNOLOGI BANDUNG VAKUM

• Main Author: AYU KUSUMADEWI, RIANA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30402
• Institution: Institut Teknologi Bandung

<p align="justify">Water reasources that are not limited in quantity is sea water, but it contains very high salinity or TDS (Total Dissolved Solid), so that it is required sea water treatment so it can be used as a fresh water source. One of the sea water treatment techmology alternatives using solar energy (renewable energy) is solar desalination (solar still) to separate salt and clean water. In this research, development of simple solar still reactor had been conducted where heating, evaporation, and condensation process are placed separately. Evaporator was under vacuum condition to accelerate evaporation process. At the beginning of <br /> <br /> this research, I used an artificial brackish water (salinity of 12‰) to determine desalinator maximum condition, ie with a few variations, such as variations in vacuum pressure (-0.05; -0.1; -0.15; -0.2; -0.25; -0.3 bar), evaporator input water flow (2.34; 5.63; 12.50; and 17.86 mL/sec), and the number of trays in evaporator (from without tray until five trays). The results showed that vacuum pressure of -0.3 bar, input water flow of 5.63 mL/sec, and five trays in the evaporator that yield the highest desalinator efficiency, amounting to 37.77%. After maximum condition was obtained, followed by using artificial sea water (salinity of 38‰) as feed water. The result showed that desalinator efficiency for artificial sea water <br /> <br /> (efficiency of 21.79%) was lower than artificial brackish water (efficiency of 37.77%). Heat transfer by conduction, convection, radiation, evaporation, and <br /> <br /> condensation is also analyzed to determine the thermal equilibrium in the system. From water quality test results, I obtained that distilled water produced by <br /> <br /> desalination system was met drinking water quality standard according to Minister of Health Regulation No. 492 of 2010 based on the parameters: pH, salinity, conductivity, turbidity, TDS (Total Dissolved Solid), ferrous (Fe), chloride, and hardness, except E.coli has not met quality standard.<p align="justify">