Efektivitas Media Berbutir Terhadap Penurunan Konsentrasi Besi (Fe) dan Mangan (Mn) Pada Air Sumur

Sharoh, Fatimah Az (2025) Efektivitas Media Berbutir Terhadap Penurunan Konsentrasi Besi (Fe) dan Mangan (Mn) Pada Air Sumur. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air tanah sering menjadi alternatif sumber air bersih, namun kualitasnya kerap terancam oleh pencemaran. Masalah pencemaran air sumur masih banyak ditemukan, termasuk di Kelurahan Keputih, yang merupakan bekas lokasi Tempat Pembuangan Akhir (TPA) yang menghasilkan lindi dengan kandungan logam berat, sehingga mencemari kualitas air tanah. Oleh karena itu, diperlukan sistem pengolahan yang mampu meningkatkan kualitas air baku menjadi air bersih sesuai standar yang berlaku. Filtrasi adalah metode pengolahan sederhana menggunakan media pasir halus, batu apung dan zeolit untuk menyaring air. Penelitian dilakukan dalam dua tahap, yaitu penelitian pendahuluan dan penelitian utama. Tahap pendahuluan meliputi survei lokasi, penentuan titik sampling, perizinan dan pengambilan sampel, serta analisis awal kualitas air sumur. Tahap utama mencakup uji pengolahan dengan running reaktor selama 10 jam menggunakan dua variasi media (pasir-batu apung dan pasir-zeolit) serta kecepatan filtrasi 0,2 m³/m².jam dengan arah aliran vertikal dari atas ke bawah. Kemudian dilakukan pengujian parameter setelah pengolahan. Parameter yang diukur adalah kekeruhan dengan metode turbidimetri, oksigen terlarut menggunakan DO meter, konsentrasi Fe dan Mn dengan metode spektrofotometri. Hasil penelitian menunjukkan bahwa reaktor dengan kombinasi pasir–batu apung lebih efektif dalam menyisihkan kekeruhan dan mangan (Mn). Sedangkan media pasir-zeolit lebih efektif menyisihkan besi (Fe). Efisiensi removal kekeruhan tertinggi sebesar 95,80% dicapai pada jam ke-8 untuk sampel 1 (S1–PA), efisiensi removal Fe tertinggi sebesar 95,4% dicapai pada jam ke-10 untuk sampel 5 (S5-PZ), dan efisiensi removal Mn tertinggi sebesar 84,8% dicapai pada jam ke-8 untuk sampel 1 (S1-PA). Dengan demikian, pengolahan menggunakan media berbutir terbukti efektif dalam mengolah air sumur tercemar dan berpotensi menjadi salah satu solusi alternatif pengolahan air skala kecil yang sederhana, murah, dan ramah lingkungan, khususnya di wilayah dengan keterbatasan akses terhadap air bersih.
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Groundwater is often used as an alternative source of clean water, but its quality is frequently threatened by pollution. Contamination of well water remains a common issue, including in Keputih Subdistrict, a former landfill site that produces leachate containing heavy metals, thereby polluting the groundwater quality. Therefore, a treatment system is needed that can improve raw water quality into clean water in accordance with applicable standards. Filtration is a simple treatment method using fine sand, pumice, and zeolite media to filter water. The study was conducted in two phases: a preliminary study and the main research. The preliminary phase included site surveys, determination of sampling points, permits and sample collection, and initial analysis of well water quality. The main phase involved treatment tests by operating reactors for 10 hours using two media variations (sand–pumice and sand–zeolite) with a filtration rate of 0.2 m³/m²·hour in a vertical downward flow. Post-treatment parameters were then tested. The parameters measured included turbidity using the turbidimetric method, dissolved oxygen using a DO meter, and the concentrations of Fe and Mn using the spectrophotometric method. The results showed that the reactor with the sand–pumice combination was more effective in removing turbidity and manganese (Mn), while the sand–zeolite media was more effective in removing iron (Fe). The highest turbidity removal efficiency of 95.80% was achieved at hour 8 for sample 1 (S1–PA), the highest Fe removal efficiency of 95.4% was achieved at hour 10 for sample 5 (S5–PZ), and the highest Mn removal efficiency of 84.8% was achieved at hour 8 for sample 1 (S1–PA). Thus, treatment using granular media proved effective in treating contaminated well water and has the potential to be a simple, low-cost, and environmentally friendly small-scale water treatment solution, particularly in areas with limited access to clean water.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	air sumur, Fe, filtrasi, kekeruhan, Mn, ground water, filtration, turbidity
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD192.5 Bioremediation T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Fatimah Az Sharoh
Date Deposited:	23 Jul 2025 00:49
Last Modified:	23 Jul 2025 00:49
URI:	http://repository.its.ac.id/id/eprint/120561

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