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All Journal TEKNIK Indonesian Journal of Chemistry
Heri Nurohman
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Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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STUDI GEOKIMIA AIR PANAS AREA PROSPEK PANASBUMI GUNUNG KENDALISODO KABUPATEN SEMARANG, PROVINSI JAWA TENGAH Aribowo, Yoga; Nurohman, Heri
TEKNIK Volume 33, Nomor 1, Tahun 2012
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1965.444 KB) | DOI: 10.14710/teknik.v33i1.3793

Abstract

Fluid geochemistry is a useful method to analyse lateral and vertical processes and trends in a geothermalsystem, just like a blood and urine analysis to determine the functions of internal organs in human body. Fluidsgeochemistry study in Kendalisodo Geothermal Prospect has conducted to get information about type andcharacteristics of fluids, to predict reservoir temperature, and sub surface hidrogeochemical cycle model.From fluids geochemistry analysis, the most significant constituent is HCO3, and thus all fluids classified intobicarbonate water. Based on gethermometry analysis, the average reservoir temperature calculated is about175oC and classified into medium enthalpy system.
Heavy Metal Identification in Water Resources and the Surrounding Environment of the Cirasea Riparian Zone, Indonesia Maria, Rizka; Astuti, Ratna Dwi Puji; Rusydi, Anna Fadliah; Marganingrum, Dyah; Mulyono, Asep; Nurohman, Heri; Dida, Eki Naidania; Damayanti, Retno; Shoedarto, Riostantieka Mayandari; Rahayudin, Yudi; Taufiqurrahman, Adie; Ferdiano, Muhammad Rio; Nugraha, Detizca Melia
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93326

Abstract

The Cirasea River can provide water for both the Bandung basin and agricultural irrigation. Intensive agriculture, industry, and land use changes could have an impact on water quality. The purpose of this study is to look at the origins of heavy metals in riparian water resources. Heavy metal analysis was performed on 13 groundwater and river water samples. Heavy metals in water sources were compared with sediment and soil. The samples were analyzed for heavy metals using an AAS instrument. The research method employs statistical, geographical, and heavy metal pollution index (HPI). The HPI for river water was 131, whereas groundwater was 93. River water with an HPI value of more than 100 is highly polluted, indicating that it is unsafe for human consumption and has negative health consequences. Data verification with heavy metals in sediments reveals the presence of heavy metals coming from geogenic circumstances in various locations in the upstream area. Heavy metals in downstream areas result from geological factors and anthropogenic activities in the surrounding area. The long-term effects of heavy metal pollution along the riparian zone will become apparent. More research is needed on communities that depend on groundwater supplies along the Cirasea watershed.  
Co-Authors Anna Fadliah Rusydi Asep Mulyono Astuti, Ratna Dwi Puji Dida, Eki Naidania Dyah Marganingrum Ferdiano, Muhammad Rio Nugraha, Detizca Melia Rahayudin, Yudi Retno Damayanti Rizka Maria Shoedarto, Riostantieka Mayandari Taufiqurrahman, Adie Yoga Aribowo