PENETAPAN KESADAHAN (CaCO3) PADA AIR TANAH DI DESA KARANGSARI KABUPATEN KULON PROGO YOGYAKARTA DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM

Sari, Dwi Nurmala (2018) PENETAPAN KESADAHAN (CaCO3) PADA AIR TANAH DI DESA KARANGSARI KABUPATEN KULON PROGO YOGYAKARTA DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM. Karya Tulis Ilmiah thesis, Universitas Setia Budi Surakarta.

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Abstract

Water is a basic requirement for human life. One of the chemical parameters in terms of water quality is the number of the element content of Ca2+ and Mg2+ in the presence of water commonly called water hardness. Hardness in water is not desired either for household use or for industrial use. This study aims to know the hardness (CaCO3) in groundwater in the Karangsari village distric of Kulon Progo Yogyakarta. The groundwater samples that were taken by purposive sampling are three point, which are upstream point, middle point and downstream point. The sample preparation was camed out by heating a mixture of 50 ml of water sample and 5 ml of concentrated HNO3 until it comes to 20 ml of volume. Then the mixture was inserted into a 50 ml of measuring flask and added by the aquabidest until the limit mark. The determination of hardness was qualitatively tested by dilute H2SO4, K2CrO4, K4Fe(CN)6 and quantitatively by Atomic Absorption Spectrophotometry (AAS). The data analysis was done by the standard curve method, which is measure absorbance. The result obtained is entered into the equation y = ax + b. The results of the study showed that the hardness (CaCO3) in the groundwater samples A, B dan C respectively are 71,74 ppm; 57,26 ppm; dan 49,82 ppm. Based on PERMENKES RI No 32 2017 maximum level of hardness (CaCO3) that is allowed in standard water quality is 500 mg/L. Keyword : groundwater, water hardness (CaCO3), Atomic Absorption Spectrophotometry (AAS)

Item Type: Thesis (Karya Tulis Ilmiah)
Uncontrolled Keywords: groundwater, water hardness (CaCO3), Atomic Absorption Spectrophotometry (AAS)
Subjects: R Medicine > R Medicine (General)
Divisions: Fakultas Ilmu Kesehatan > Prodi D3 Analis Kesehatan
Depositing User: B Supri Yadi
Date Deposited: 23 Feb 2019 02:37
Last Modified: 23 Feb 2019 02:37
URI: http://repo.setiabudi.ac.id/id/eprint/446

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