Penggunaan Air Asam Tambang Sebagai Koagulan Dalam Pengolahan Air Run Off Pertambangan Batu Bara Dengan Koagulasi Dua Tahap

Yuri, Ulinnuha (2014) Penggunaan Air Asam Tambang Sebagai Koagulan Dalam Pengolahan Air Run Off Pertambangan Batu Bara Dengan Koagulasi Dua Tahap. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air asam tambang (AAT) merupakan hasil reaksi oksidasi pyrite dengan air dan oksigen yang menghasilkan asam. Kandungan utama dalam AAT adalah logam Fe yang didominasi oleh senyawa FeSO4 dan Fe2(SO4)3, senyawa tersebut merupakan koagulan yang biasa digunakan dalam pengolahan air. Dalam penelitian ini digunakan AAT sebagai koagulan untuk pengolahan air run off pertambangan batu bara dengan koagulasi dua tahap satu jenis koagulan (AAT-AAT) dan dua jenis koagulan (AAT- clarifix dan AAT-PAC). Tujuan dari penelitian ini adalah menentukan dosis dan perbandingan optimum untuk masing- masing koagulan serta pengaruh jenis AAT, perbandingan dosis AAT, dan dosis koagulan kedua terhadap efisiensi pengolahan. Pada penelitian ini dilakukan variasi terhadap perbandingan dosis, dosis koagulan kedua, dan pH awal sampel. Analisis laboratorium untuk parameter pH, TSS, kekeruhan, Fe dan Mn. Penentuan pengaruh tiap variasi menggunakan perhitungan statistik dengan metode Anova dan Manova. Koagulasi dua tahap (AAT-AAT) penelitian A menghasilkan efisiensi tertinggi pada perbandingan 75:25, yaitu menyisihkan 99,4% TSS dan 99,6% kekeruhan pada pH optimum 7,86. Pada koagulasi 75% AAT-0,04 mL/L clarifix dapat menyisihkan 99,7% TSS dan 96,3% kekeruhan. pH optimum proses koagulasi AAT- clarifix adalah 6,5-7,5. Sedangkan koagulasi 75% AAT-20 mg/L PAC menyisihkan 100% TSS dan 99,8% kekeruhan. pH optimum koagulasi AAT-PAC adalah 6-7,5. Berdasarkan analisis statistik, jenis AAT mempunyai pengaruh signifikan pada koagulasi AAT- AAT. Perbandingan dosis AAT berpengaruh pada koagulasi AAT- clarifix. Sedangkan pada AAT-PAC, dosis PAC memberikan pengaruh lebih signifikan dibandingkan perbandingan AAT. =================================================================================================================== Acid mine drainage (AMD) is the result of pyrite oxidation reaction with water and oxygen that produces acid. The main content of the AMD is Fe, which is dominated by FeSO4 and Fe2(SO4)3, these compound are commonly used as a coagulant in water treatment. In this study AMD was used as a coagulant in water treatment of coal mining run off with two-stage coagulation which use one type coagulant (AMD-AMD) and two types coagulants (AMD-clarifix and AMD-PAC). The purpose of this study is to determine the optimum dose and ratio for each coagulant dose and also the effect of different type of AMD, AMD dose ratio, and dose of second coagulant on treatment efficiency. Variation in this research were dose ratio, second dose of coagulant, and the initial pH of the sample. Laboratory analysis for pH, TSS, turbidity, Fe and Mn parameter. Determination of the effect of each variation using statistical calculations with Anova and Manova methods. Two stages coagulation (AMD-AMD) in experiment A, produced the highest efficiency at ratio 75:25, which had efficiency removal for TSS and turbidity were 99,4% 99,6% respectively at optimum pH 7,86. Coagulation of 75% AMD-0,04 mL/L clarifix had removal efficiency of TSS and turbidity were 99,7% and 96,3%. The optimum pH of AMD-clarifix coagulation was range at 6,5-7,5. While coagulation of 75% AMD-20 mg/L PAC had removal efficiency of TSS and turbidity were 100% and 99,8% respectively. The optimum pH of AMD-PAC coagulation was 6 to 7,5. Based on statistical analysis, the type of AMD had a significant effect on AMD-AMD coagulation. Dose ratio had siginificant effect on AMD-clarifix coagulation. While on AMD-PAC coagulation, variation dosage of PAC had more significant effect than the dose ratio of AMD.

Item Type: Thesis (Undergraduate)
Additional Information: RSL 628.162 2 Yur p 3100014055883
Uncontrolled Keywords: air asam tambang, air run off pertambangan, clarifix, koagulasi dua tahap, PAC
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions: Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis
Depositing User: Yeni Anita Gonti
Date Deposited: 25 Sep 2020 03:16
Last Modified: 25 Sep 2020 03:16
URI: http://repository.its.ac.id/id/eprint/82029

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