relation: https://eprints.untirta.ac.id/48759/
title: Recovery Protein dari Limbah Cair Tahu Pekat dengan Metode Elektrokoagulasi
creator: Shidik, Abdul Maulana
subject: QD Chemistry
subject: TP Chemical technology
description: One of the organic materials found in tofu liquid waste is protein that reaches 40- 60%. The protein can be recovered by electrocoagulation method, so that it can be used as food ingredients or as a food additives. Improper tofu waste processing can cause environmental pollution. Electrocoagulation is a physical processing technique that can be applied to treat tofu wastewater. This study aimed to   determine the effects of contact time, voltage, and their interaction on the chemical characteristics and protein recovery from tofu wastewater. The study employed a Factorial Randomized Group Design with two factors and three replicates. The first factor was contact time (60, 90, and 120 minutes) dan the second factor was voltage (7.5, 15, and 22.5V). The result shows, the initial characteristics of the tofu liquid waste included a protein content of 1.11 g/L,   COD content of 8.29 g/L, turbidity of 351.51 NTU, pH of 3.75, and temperature of 20°C. The final characteristics of the tofu liquid waste showed a protein content in solution ranged from 0.34 to 1.05 g/L, foam protein content range from 0.44 to 2.58 g/L, and precipitate protein content ranged from 19.89% to 78.88%. COD levels decreased range from 8.16 to 4.32 g/L, turbidity values ranged from 319 to 84.33 NTU, pH increased ranged from 4 to 4.9, and temperature ranged from 22.67 to 35.33°C. Protein recovery from the solution ranged from 93.97% to 30.64%, foam protein recovery ranged from 1.96% to 11.58%, and sludge protein   recovery ranged from 4.06% to 57.78%.
date: 2025
type: Thesis
type: NonPeerReviewed
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identifier: https://eprints.untirta.ac.id/48759/1/Abdul%20Maulana%20Shidik_4444200077_Fulltext.pdf
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identifier: https://eprints.untirta.ac.id/48759/4/Abdul%20Maulana%20Shidik_4444200077_04.pdf
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identifier: https://eprints.untirta.ac.id/48759/5/Abdul%20Maulana%20Shidik_4444200077_05.pdf
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identifier: https://eprints.untirta.ac.id/48759/6/Abdul%20Maulana%20Shidik_4444200077_Ref.pdf
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identifier: https://eprints.untirta.ac.id/48759/7/Abdul%20Maulana%20Shidik_4444200077_Lamp.pdf
identifier:   Shidik, Abdul Maulana  (2025) Recovery Protein dari Limbah Cair Tahu Pekat dengan Metode Elektrokoagulasi.  S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.