Efisiensi Pengolahan Limbah Cair Pabrik Tahu Menggunakan Metode Fenton (Hydrogen Peroxide & Fero Sulfat Heptahidrat)

Abdi, Hasnin Muhammad Maulana (2026) Efisiensi Pengolahan Limbah Cair Pabrik Tahu Menggunakan Metode Fenton (Hydrogen Peroxide & Fero Sulfat Heptahidrat). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan jumlah industri tahu di Indonesia menyebabkan peningkatan produksi limbah cair dengan kandungan zat organik yang tinggi. Limbah cair tahu umumnya memiliki nilai Chemical Oxygen Demand (COD) yang cukup tinggi yaitu 2416 mg/L sehingga berpotensi mencemari lingkungan jika tidak diolah dengan baik. Penelitian ini bertujuan untuk mengkaji efisiensi pengolahan limbah cair dari pabrik tahu menggunakan metode fenton, menentukan dosis yang optimum, dan mendapatkan analisis studi kelayakan pada perencanaan IPAL berdasarkan pengolahan metode fenton. Proses pengolahan dilakukan dengan proses kimiawi yaitu menggunakan pengolahan metode fenton dengan variasi jenis dan dosis fenton. Reaktor yang digunakan untuk pengolahan fenton pada penelitian skala laboratorium ini berupa gelas beaker. Parameter utama yang diuji meliputi Chemical Oxygen Demand (COD) dan potential of Hydrogen (pH) yang aman untuk dibuang ke sungai dengan parameter pendukung suhu. Reaktor dijalankan dengan sistem intermittent yaitu mekanisme pengolahan yang bekerja secara berkala dan tidak berlangsung secara continuous. Pada sistem ini, limbah dimasukkan ke dalam reaktor dengan jumlah tertentu kemudian diolah selama waktu tertentu hingga proses selesai. Hasil penelitian menunjukkan bahwa pengolahan dengan metode fenton mampu meningkatkan laju degradasi bahan organik dan menurunkan nilai COD secara signifikan dari 2416 mg/L menjadi 727 mg/L. berdasarkan data hasil pengujian metode fenton mampu menurunkan COD sebesar 70% dengan dosis fenton 1: 10 hanya dalam waktu 5 menit. Berdasarkan analisis benefit cost ratio perencanaan IPAL belum mencapai layak operasi dikarenakan biaya operasional yang tergolong mahal untuk pabrik skala menengah kebawah di Desa Ledokkulon Bojonegoro.
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The increasing number of tofu industries in Indonesia has led to a rise in the production of wastewater containing high concentrations of organic pollutants. Tofu wastewater generally has a high Chemical Oxygen Demand (COD) value of approximately 2,416 mg/L, posing a significant risk of environmental pollution if discharged without proper treatment. This study aims to evaluate the efficiency of tofu wastewater treatment using the Fenton process, determine the optimum Fenton dosage, and assess the feasibility of designing a wastewater treatment plant (WWTP) based on the Fenton treatment method. The treatment process was carried out using a chemical oxidation approach employing the Fenton method with various Fenton reagent types and dosages. In this laboratory-scale study, the Fenton reactor consisted of a beaker glass. The main parameters analyzed were Chemical Oxygen Demand (COD) and potential of Hydrogen (pH) to ensure compliance with discharge standards for receiving water bodies, while temperature was measured as a supporting parameter. The reactor was operated in a batch (intermittent) system, in which wastewater was introduced into the reactor in batches and treated for a specified period until the process was completed, rather than being operated continuously. The results showed that the Fenton process effectively enhanced the degradation of organic matter and significantly reduced the COD concentration from 2,416 mg/L to 727 mg/L. The experimental data indicated that the Fenton method achieved a 70% reduction in COD at a Fenton dosage ratio of 1:10 within only 5 minutes of treatment. However, based on the Benefit-Cost Ratio (BCR) analysis, the proposed wastewater treatment plant was not considered economically feasible due to its relatively high operational costs, particularly for small- to medium-scale tofu industries in Ledokkulon Village, Bojonegoro.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pengolahan kimia , Fenton, COD, pH, limbah cair tahu,Chemical treatment, Fenton, COD, pH, Tofu wastewater.
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants T Technology > TD Environmental technology. Sanitary engineering > TD455 Chemical precipitation. Coagulation. Flocculation. Water--Purification--Flocculation.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Hasnin Muhammad Maulana Abdi
Date Deposited:	23 Jul 2026 05:39
Last Modified:	23 Jul 2026 05:39
URI:	http://repository.its.ac.id/id/eprint/136371

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