PENGARUH VARIASI JUMLAH TRAY DALAM SISTEM TRAY AERATOR DAN KETEBALAN MEDIA FILTER TERHADAP PENURUNAN KADAR BESI (FE) PADA AIR SUMUR BOR

PANGESTIKA, AULIA DWITA, A2A014018 (2018) PENGARUH VARIASI JUMLAH TRAY DALAM SISTEM TRAY AERATOR DAN KETEBALAN MEDIA FILTER TERHADAP PENURUNAN KADAR BESI (FE) PADA AIR SUMUR BOR. Sarjana / Sarjana Terapan (S1/D4) thesis, ["eprint_fieldopt_institution_Universitas Muhammadiyah Semarang" not defined].

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Abstract

Background: Chemical quality of clean water that must be met, one of which is iron content. Fe content in ground water can cause environmental and health problems. Based on the results of laboratory tests, the results of Fe content of Jeketro Village well water, Gubug District, Grobogan District were 1.03 mg / l. One of the water treatment to reduce iron content in well water is by aeration-filtration. This study aims to determine the effect of variations in the number of trays in the tray aerator system and the thickness of the filter media to decrease iron content. Method: this research is a quasi-experimental. The independent variable of this study is the number of trays and media thickness, while the dependent variable is the decrease in iron content. The results of the study were tested using the Two Way Anova test and Post Hoc Test. Results: the average level of iron (Fe) in well water before treatment is 1.07 mg / l, while the average iron content after treatment in treatment 1 is 0.291 mg / l, treatment 2 is 0.277 mg / l , treatment 3 was 0.256 mg / l, treatment 4 was 0.233 mgl, treatment 5 was 0.214 mg / l, treatment 6 was 0.193 mg / l, treatment 7 was 0.168 mg / l, treatment 8 was 0.147 mg / l, treatment 9 was 0.121 mg / l. The average percentage of iron (Fe) reduction in bore well water is 73.03%. The effect of the number of trays (p-value = 0,000), the influence of media thickness (p-value = 0,000), the effect of the interaction of the number of trays and media thickness (p-value = 0,590) on the decrease in iron (Fe) levels in wellbore water. Conclusion: there is a significant effect of the number of trays, the thickness of the media on the decrease in iron (Fe) levels in wellbore water. There is no interaction effect between the number of trays in the tray aerator system and the thickness of the media to reduce iron (Fe) levels in wellbore water. This research is optimal in the number of tray 10 with a thickness of 100 cm filter media. Keywords: Well water, Fe, Tray Aerator, Filter Media

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