Rancang Bangun Alat Ukur Kadar Besi (Fe) Dan Mangan (Mn) Menggunakan Metode Spektrofotometri Pada Sistem Filtrasi Air

Wijaya, Wahyuni Putri (2025) Rancang Bangun Alat Ukur Kadar Besi (Fe) Dan Mangan (Mn) Menggunakan Metode Spektrofotometri Pada Sistem Filtrasi Air. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air sumur sering menjadi sumber utama air bersih bagi masyarakat, namun tingginya kandungan besi (Fe) dan mangan (Mn) di dalamnya dapat menyebabkan masalah kesehatan serius seperti gangguan gastrointestinal, hemosiderosis, dan neurotoksisitas. Pada proyek akhir ini dirancang sistem monitoring kadar Fe dan Mn berbasis metode spektrofotometri menggunakan LED dengan panjang gelombang 510 nm untuk Fe dan 525 nm untuk Mn, serta sensor TCS34725 yang terhubung ke mikrokontroler ESP32. Sistem monitoring yang dikembangkan menunjukkan akurasi sebesar 95,65% dan presisi 0,922 untuk Fe, serta akurasi sebesar 82,61% dan presisi 0,998 untuk Mn, dengan nilai linieritas keduanya di atas 0,99, menunjukkan hubungan yang sangat linier antara konsentrasi aktual dan hasil pembacaan sensor. Selain itu, sistem filtrasi air sumur menggunakan kombinasi media silika, zeolit, dan karbon aktif juga berhasil dirancang dan diuji. Hasil pengujian menunjukkan bahwa rasio 45% silika, 33% zeolit, dan 22% karbon aktif memiliki efektivitas penurunan tertinggi, yaitu 93,88% untuk Fe dan 99,72% untuk Mn, dengan total efektivitas 96,80%. Hasil ini membuktikan bahwa sistem filtrasi yang dirancang mampu menurunkan kadar logam berat mendekati baku mutu air layak pakai.

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Well water is often the main source of clean water for the community, but the high content of iron (Fe) and manganese (Mn) in it can cause serious health problems such as gastrointestinal disorders, hemosiderosis, and neurotoxicity. In this final project, a monitoring system for Fe and Mn levels based on the spectrophotometric method was designed using LEDs with wavelengths of 510 nm for Fe and 525 nm for Mn, as well as a TCS34725 sensor connected to an ESP32 microcontroller. The developed monitoring system showed an accuracy of 95.65% and a precision of 0.922 for Fe, and an accuracy of 82.61% and a precision of 0.998 for Mn, with linearity values both above 0.99, indicating a highly linear relationship between actual concentrations and sensor readings. In addition, a well water filtration system using a combination of silica, zeolite and activated carbon media was also successfully designed and tested. The test results showed that the ratio of 45% silica, 33% zeolite, and 22% activated carbon had the highest reduction effectiveness, which was 93.88% for Fe and 99.72% for Mn, with a total effectiveness of 96.80%. These results prove that the designed filtration system is able to reduce heavy metal levels close to the water quality standards.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Air sumur, besi (Fe), mangan (Mn), sistem filtrasi, sensor TCS34725, ESP32 Well water, Iron (Fe), Manganese (Mn), filtration system, TCS34725 sensor, ESP32
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD430 Water--Purification. T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Wahyuni Putri Wijaya
Date Deposited:	04 Aug 2025 03:59
Last Modified:	04 Aug 2025 03:59
URI:	http://repository.its.ac.id/id/eprint/126358

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