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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Rekayasa Lingkungan INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Styana, Ucik Ika Fenti
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science

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PENGARUH VARIASI UKURAN BUTIR BAHAN TERHADAP KUALITAS BIOBRIKET ARANG KULIT KACANG TANAH Mu’minin, Amirul; Indrawati, Rosiana; Styana, Ucik Ika Fenti
Jurnal Rekayasa Lingkungan Vol 21, No 2 (2021)
Publisher : Institut Teknologi Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/jrl.v21i2.112

Abstract

Kebutuhan dan konsumsi energi semakin meningkat sejalan dengan bertambahnya populasi manusia dan meningkatnya perekonomian masyarakat, serta perkembangan industri di seluruh dunia. Oleh karena itu kita dituntut untuk memikirkan sumber energi alternatif yang dapat diperbaharui. Salah satu sumber energi alternatif yang dapat digunakan yaitu energi biomassa berupa biobriket dengan memanfaatkan kulit kacang tanah. Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh variasi ukuran butir bahan terhadap kadar air, lama pembakaran, laju pembakaran, dan kekuatan tekan biobriket arang kulit kacang tanah. Penelitian ini merupakan penelitian eksperiment dengan obyek penelitian adalah biobriket arang kulit kacang tanah dengan menganalisis kadar air, lama pembakaran, laju pembakaran, dan kekuatan tekan. Analisis data menggunakan metode deskripif. Pada pembuatan biobriket ini dilakukan variasi ukuran butir bahan dengan ukuran 10 mesh, 18 mesh, 30 mesh, dan 40 mesh, dengan menggunakan perekat getah karet dan dilakukan 2 kali pengulangan. Dari analisis yang dilakukan terhadap hasil penelitian diperoleh kadar air terendah pada ukuran butir bahan 10 mesh yaitu sebesar 19,5641 %, lama pembakaran tertinggi pada ukuran butir bahan 40 mesh yaitu selama 44,5 menit, laju pembakaran terendah pada ukuran butir bahan 40 mesh yaitu selama 0,898 gr/menit, kekuatan tekan biobriket sangat baik pada ukuran 30 mesh dan 40 mesh.
WASTEWATER QUALITY AND POLLUTION LOAD OF EACH STAGE IN TEMPEH PRODUCTION Pramaningsih, Vita; Hansen, Hansen; Praveena, Sarva Mangala; Styana, Ucik Ika Fenti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 3, OCTOBER 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i3.12838

Abstract

Aim: This study is purpose to understand the chemical and physical characteristics and pollution load in each step of tempeh wastewater: washing, boiling, soaking and mixing. Tempeh is traditional food from soybean fermentation. Tempeh has a lot of healthy contents as protein and vitamin. However, wastewater from tempeh production is discharge to river directly which considered as environmentally damaging. However, the characteristics of wastewater from tempeh production and its level of environmental impacts to environment are limitedly studied. Methodology and Results: Tempeh wastewater was analyzed in chemical and physical parameters. Chemical characteristics analyzed are pH, Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). pH was measured using pH meter, BOD using SNI 6989.72:2009 method and COD using SNI 6989.2:2019 method. The physical parameter analyzed is Total Suspended Solid (TSS) and analyzed using SNI 6989.3: 2019 method. Pollution load calculated by deviation maximum pollution load and pollution load existing. Result of this study findings indicated that the highest BOD 299.40 mg/L and COD 540.66 mg/L was found in soaking step compared to other steps in tempeh production. Highest TSS 655.20 mg/L was found in boiling step. The pH values in all steps were acidic 4 and 5. Allocation Pollution load of: TSS overall exceeded the capacity, BOD and COD overall exceeded the capacity except in washing step (BOD 304.39 kg/day and COD 857.78 kg/day). Conclusion, significance and impact of study: The Highest TSS of tempeh wastewater processes was in boiling step while the highest organic matter was detected in soaking. Further for whole pH were acidic and exceeded the standard. Allocation of pollution load for TSS, BOD and COD exceed the standard except for BOD and COD in washing waste. Overall tempeh wastewater needs treatment to prevent river pollution.
Design of Fruit Fly Trap ApelB Using a Microcontroller and Sensor System Powered by Solar Photovoltaic Alatas, Masrur; Arifin, Mohammad Syamsul; Ridlo, Dimas Taufiq; Styana, Ucik Ika Fenti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2194-2205

Abstract

Indonesia’s vast horticultural land faces serious threats from Bactrocera fruit fly infestations, a type of fruit fly in the Tephritidae family that causes rotting plants, reducing the quality of plantation and agricultural products, and even crop failure. The purpose of this study was to design a fruit fly (Bactrocera) trap ApelB version 1.1, using the Cockcroft-Walten Circuit, Methyl Eugenol, PIR HC-SR501 sensor, Arduino Uno ATmega328P, powered by electricity from a Solar Power Plant/System (PLTS) with a panel capacity of 10 Wp, Solar Charge Controller 10 A and a 14.8 V 2.5 Ah battery. The ApelB version 1.1 test method on agricultural land for 24 hours used methyl eugenol to attract fruit flies to enter the trap. Electricity from the PLTS functions to eradicate fruit flies that land on the electric net trap. The findings of ApelB version 1.1 successfully attracted, detected through sensors, and eradicated fruit flies with electric shocks. The capture rate was 80% in lab tests, while corn and chili field trials caught an average of 148–150 fruit flies. ApelB version 1.1 can suppress attacks and fruit fly populations, with a PLTS system and energy storage battery. This tool is guaranteed to operate 24 hours automatically.
Co-Authors Alatas, Masrur Dimas Taufiq Ridlo Hansen, Hansen Indrawati, Rosiana Mu’minin, Amirul Praveena, Sarva Mangala Syamsul Arifin Vita Pramaningsih