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All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Ilmiah Rekayasa Pertanian dan Biosistem JMM (Jurnal Masyarakat Mandiri) Jurnal Agrotek UMMat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agritechno Jurnal Gema Ngabdi Protech Biosystems Journal
Diah Ajeng Setiawati
Program Studi Teknik Pertanian Fakultas Teknologi Pangan & Agroindustri Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Mechanical Engineering Social Sciences Other

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Journal : Protech Biosystems Journal

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Application of Electrocoagulation for Wastewater Treatment of Tofu Production Ino Eben Lasroha L.Toruan; Sirajudin Haji Abdullah; Sukmawaty Sukmawaty; Diah Ajeng Setiawati
Protech Biosystems Journal Vol 1, No 1 (2021): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v1i1.6001

Abstract

This study aims to process tofu wastewater by using the electrocoagulation method and determine TSS, TDS, and pH efficiency. The Electrocoagulation system was designed based on an electrocoagulation general standard called batch systems. This study used voltage variations of 10, 20, and 30 volts and exposure time during 60, 120, and 180 minutes. The parameters observed were Total Suspended Solid (TSS), Total Dissolved Solid (TDS), and acidity (pH). This study used fresh tofu wastewater with temperature 40-50oC, with a volume of 2000 ml wastewater in one time of electrocoagulation process. The results showed that the designed electrocoagulation system could reduce TSS concentration until 72.2% and TDS 15.4% and increasing pH approaching the neutral value. However, the concentration value of TSS and TDS  was still above the quality standard. Initial characteristics of tofu wastewater with pH 4.6, TSS 2396.4 mg/L, and TDS 2975.1 mg/L after electrocoagulation process gained pH values 6.5, TSS 1072.7 mg/L, and TDS 2621.6 mg/L.
Model Arrhennius Untuk Memprediksi Penyimpanan Kelapa Parut Kering Guyup Mahardhian Dwi Putra; Diah Ajeng Setiawati
Protech Biosystems Journal Vol 1, No 1 (2021): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v1i1.5976

Abstract

Dry grated coconut is a processed coconut product that can be directly used by consumers without requiring further processing. In order for dried coconut products to last longer, a good storage process is needed. Storage is intended to maintain the value of the stored commodity. One of the models used for estimating shelf life is the Arrhenius model. Parameters in this study were water content, temperature and humidity. Temperature parameters consisted of three treatments,i.e 30°C, 35°C and 40°C. The results showed a decrease in water content data obtained by using the Arrhenius method at each storage temperature for a temperature of 30°C that is 103.9 days, a temperature of 35°C is 74 days and a temperature of 40oC is 60.5 day.
Co-Authors Ansar Ansar Asih Priyati Baiq Sulasi Muliani Fakhrul Irfan Khalil Guyup Mahardhian Dwi Putra Ino Eben Lasroha L.Toruan Joko Sumarsono Muhammad Nasarudin Murad, Murad Sirajuddin H. Abdullah Sirajuddin Haji Abdullah Sirajudin Haji Abdullah Sopiyan Iqbal Sri Hartini Sukmawaty Sukmawaty Sukmawaty Sukmawaty Sumarjan Sumarjan