GEOCHEMISTRY ANALYSIS OF GEOTHERMAL WATER MANIFESTATION IN PATUHA MOUNTAIN AREA

• Main Author: Ilmi, Abi
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/44024
• Institution: Institut Teknologi Bandung

Mount Patuha is one of the mountains in West Java that is classified as active and is a source of geothermal underneath with the potential to produce 470 MW of electricity. Manifestations of geothermal energy can be explored through tears that appear through Mount Patuha, both hot and cold tears. This geothermal manifest water research is designed to be able to find out the characteristics of water so as to facilitate geothermal exploration in the next Mount Patuha area. In this study, 14 spring samples were taken from locations around Mount Patuha. The samples were analyzed by physical parameters test, Ion Chromatography test and ICP-MS test. This test is carried out to test the specific chemical composition in the sample. From the results of this study it can be concluded that Mount Patuha has a geothermal system with high assistance. The manifestation of geothermal fluid in the Patuha area is immature water, which means that the air from under the reservoir has been mixed with surface air and also mixed with various substances or particles that can dissolve together during the process of transportation to the surface. Areas that are included in the upstream zone are located in Cibuni Crater, Tiis Crater, and Ciwidey Crater. Looking at the Cl- / B ratio, Li and Rb of Mount Patuha area has two heat reservoirs, namely the North reservoir and the South reservoir. The suitable reservoir for PLTP is the Northern reservoir. With an indication of reservoir temperature of 90?-130?C.