PENURUNAN KADAR KESADAHAN TOTAL SUMBER MATA AIR PEGUNUNGAN KENDENG PATI MENGGUNAKAN ZEOLIT ZSM-5 BERDASARKAN VARIASI LAMA PERENDAMAN

Lestari, Puji, G0C015093 (2018) PENURUNAN KADAR KESADAHAN TOTAL SUMBER MATA AIR PEGUNUNGAN KENDENG PATI MENGGUNAKAN ZEOLIT ZSM-5 BERDASARKAN VARIASI LAMA PERENDAMAN. Sarjana / Sarjana Terapan (S1/D4) thesis, ["eprint_fieldopt_institution_Universitas Muhammadiyah Semarang" not defined].

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Abstract

Kendeng Pati Mountain Water has high lime content. As a result of the high content of lime which causes the total hardness to be high. Total hardness has a detrimental effect on humans, can cause kidney stone disease, water becomes cloudy. Therefore, a solution is needed to reduce the total hardness level, one of them is using ZSM-5 synthetic zeolite. This study aims to determine the effect of ZSM-5 zeolite use on the reduction of the total hardness level of the Kendeng Pati mountain spring water source based on the variance of 60, 90, 120, 150 and 180 minutes of soaking time. This type of research is experimental, the method used is complexometry titration method. The results showed that the initial total hardness level was 410 mg / L, then there was a decrease in the total hardness level after immersion using ZSM-5 zeolite 0.75% b / v, respectively 45.08 ± 0.05; 51.58 ± 0.12; 61.54 ± 0.11; 70.00 ± 0.21; and 80.40 ± 0.11%. The highest decrease in total hardness occurs at 180 minutes soaking time. Then the One Way Annova statistical test was carried out, it showed that there was an effect of variations in immersion length on the decrease in the total hardness of the Kendeng Pati mountain spring with the addition of ZSM-5 zeolite 0.75% w / v. Keywords: Total Hardness, Kendeng Mountain Water, ZSM-5 Zeolite

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