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All Journal Buletin Peternakan Jurnal Rekayasa Proses International Journal of Renewable Energy Development Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keteknikan Pertanian Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Journal of Engineering and Technological Sciences agriTECH Indonesian Journal of Science and Technology Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Rekayasa Proses INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Agricultural Biosystem Engineering Journal of Scientific Research, Education, and Technology Aceh International Journal of Science and Technology Education, Language, and Arts: Jurnal Pengabdian Kepada Masyarakat International Journal of Sociology and Law Jurnal Rekayasa Proses
Agus Haryanto
Jurusan Teknik Pertanian, Fakultas Pertanian, Universitas Lampung Jl Soemantri Brojonegoro No. 1 Kampus Gedong Meneng, 35145 Bandar Lampung
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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PERUBAHAN SIFAT FISIS PELET TANDAN KOSONG KELAPA SAWIT HASIL TOREFAKSI tri yulianto; Indra Gumay Febryano; Dewi Agustina Iryani; Agus Haryanto; Udin Hasanudin; Wahyu Hidayat
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 2 (2020): Juni 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i2.104-111

Abstract

 Penggunaan sumber energi dari fosil secara terus menerus mengakibatkan pasokan minyak bumi menjadi terbatas, sehingga dibutuhkan inovasi energi terbarukan. Tandan kosong kelapa sawit (TKKS) merupakan salah satu limbah padat dari industri minyak sawit yang potensial untuk digunakan sebagai energi terbarukan karena ketersediaannya yang melimpah dan harga bahan baku yang relatif murah. Sifat-sifat TKKS dapat ditingkatkan menggunakan metode torefaksi. Torefaksi adalah perlakuan termokimia pada kisaran  suhu 200-300°C dengan kondisi inert (oksigen terbatas).  Penelitian ini bertujuan untuk mengetahui perubahan sifat fisis pelet TKKS melalui torefaksi dengan menggunakan electric furnace (EF). Torefaksi pelet TKKS pada penelitian ini menggunakan suhu 280°C dengan durasi 20 menit.  Pengujian pelet TKKS meliputi perubahan warna, kerapatan, kadar air, dan ketahanan terhadap perendaman air. Hasil penelitian menunjukkan bahwa warna pelet tandan kosong kelapa sawit berubah total setelah torefaksi dengan nilai perubahan warna (ΔE*) sebesar 14,97. Kerapatan awal pelet sebesar 0,58% g/cm3 menurun dan setelah torefaksi menjadi 0,48 g/cm3. Kadar air awal pelet tandan kosong kelapa sawit sebesar 11,54% menurun setelah torefaksi menjadi 6,66%. Uji ketahanan terhadap air menunjukkan bahwa pelet yang ditorefaksi lebih tahan terhadap air dibandingkan pelet yang belum ditorefaksi, sehingga akan sangat menguntungkan ketika pelet disimpan dalam waktu yang lama dan pada kondisi lembab. Kata kunci: sifat fisis, tandan kosong kelapa sawit, torefaksi, warna.
Cover Vol 13 No 2, June 2024 Agus Haryanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 2 (2024): June 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i2.%p

Abstract

Cover Vol 13 No 3, September 2024 Agus Haryanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.%p

Abstract

The Effect of Giving Semi Fowler Position in Reducing Ineffective Breathing in Chronic Kidney Disease (CKD) Patients at RSUD Ibnu Sina Gresik Hospital (Case Study Research) Nur Soemah, Eka; Savinda Afista; Agus Haryanto
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 3 No. 1 (2024): Vol. 3 No. 1 2024
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v3i1.315

Abstract

Chronic kidney disease is a condition where the kidneys fail to perform their function to excrete substances that are not needed by the body, resulting in accumulation in the body which can trigger uremia. This scientific work aims to apply nursing care to CKD patients with ineffective breathing patterns at Ibnu Sina Gresik Hospital. The method applied in the preparation of this scientific work is the case study method. The subjects in this scientific work are participants with CKD cases and have problems with ineffective breathing patterns who are undergoing treatment at Ibnu Sina Gresik Hospital. Data collection using interview techniques, observation, physical examination, and documentation and was carried out in the period January to March 2023. The nursing care process for participants was carried out for 5 days, and the assessment results were obtained, namely shortness of breath. The implementation process is carried out in accordance with nursing care planning, one of which is by giving the semi-fowler position. A thorough evaluation was carried out during the provision of nursing care, and it was found that the participants with the problem of ineffective breathing patterns were resolved. Participants do not complain of shortness of breath, breathing frequency improves or is in the normal range, dyspnoea decreases, and there is no use of breathing muscles. The problem of ineffective breathing patterns is resolved by the application of nursing care that is carried out comprehensively. Giving the semi fowler position has an impact on reducing ineffective breathing patterns, because in a tilt angle of 45 degrees and applied during treatment is able to press the diaphragm down so that the lungs can expand and get maximum oxygen supply. Keywords: Chronic Kidney Disease, Ineffective Breathing Pattern, Semi-Fowler's Position.
Pengaruh komposisi subtrat dari campuran kotoran sapi dan rumput gajah (Pennisetum purpureum) terhadap produktivitas biogas pada digester semi kontinu Agus Haryanto; Rivan Okfrianas; Winda Rahmawati
Jurnal Rekayasa Proses Vol 13 No 1 (2019): Volume 13, Number 1, 2019
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.41125

Abstract

This study aims to determine the effect of substrate composition on biogas production from a mixture of cow dung and elephant grass using semi-continuous digester. Fresh cow dung and elephant grass were obtained from Department of Animal Husbandry, Faculty of Agriculture, University of Lampung. Elephant grass was knife-chopped, crushed using a blender and then mixed with cow dung at a total solid (TS) ratio between elephant grass and cow dung varies from 35:65 (P1), 40:60 (P2), 45:55 (P3), and 50:50 (P4). This mixture was then diluted with tap water until its TS content reach 5% and was used as substrate. Four semi-continuous digesters (labeled as P1 to P4) having a capacity of 36 L and working volume of 28 L were initially loaded with 22 L of diluted fresh cow dung (dilution ratio of 1:1) as a starter (source of bacteria) and were left until stable condition. When the biogas was produced, the prepared substrate was added daily into the respective digester at a loading rate of 500 mL.d-1. Parameters to be observed included daily temperature and pH of the substrate, daily biogas production, TS and VS content, and biogas quality. The results showed that the digester worked at average pH of 6.9 and the daily temperature 26.3 to 29.7°C. The total biogas production for 60 days was 608.4, 676.8, 600.0, and 613.3 L, respectively for P1, P2, P3, and P4. Biogas yield after the substrate achieving the designed composition was 254 (P1), 260 (P2), 261 (P3), and 271 L.m-3 of the substrate (P4). The addition of elephant grass up to 50% could maintain high production of biogas.
Cover Vol 13 No 4, December 2024 Agus Haryanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.%p

Abstract

Gender and Justice: The Socio-Legal Implications Of Gender-Based Violence Legislation Agus Haryanto; Rizky Wahyuni; Wulan Sari
International Journal of Sociology and Law Vol. 1 No. 1 (2024): February : International Journal of Sociology and Law
Publisher : Asosiasi Penelitian dan Pengajar Ilmu Hukum Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijsl.v1i1.267

Abstract

This article examines the socio-legal impact of gender-based violence legislation on survivors and societal perceptions of justice. By evaluating the effectiveness of various legal protections and support systems for victims, the study assesses challenges such as enforcement, social stigma, and cultural attitudes. Findings suggest that while legal protections are essential, achieving gender justice requires broader social reforms to address deeply rooted biases and to empower survivors.
Biogas Production from Palm Oil Mill Effluent and the Prospect of Co-digestion with Empty Fruit Bunches – A Comprehensive Review Afid Fitro Setiawan; Agus Haryanto; Udin Hasanudin; Sugeng Triyono; Dewi Agustina Iryani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1976-2005

Abstract

Palm oil mill effluent (POME) and oil palm empty fruit bunches (OPEFB) represent two major waste streams in the palm oil industry that pose serious environmental challenges but also offer significant opportunities for renewable energy generation. This review comprehensively discusses the development of biogas production from POME through anaerobic digestion (AD) and explores the prospects of co-digestion with OPEFB to improve system efficiency and sustainability. A systematic literature survey of over 150 publications from the past four decades was conducted to evaluate technological evolution, operational parameters, methane yield, and environmental implications. The review identifies five major phases of POME biogas development—from early feasibility studies in the 1980s to the current exploitation phase integrating energy recovery, carbon credit schemes, and circular bioeconomy principles. Anaerobic digestion of POME in covered lagoon systems has achieved COD removal efficiencies exceeding 90% and methane yields of 0.28–0.34 Nm³ CH₄ per kg COD removed, supporting electricity generation potentials above 1 GW nationwide. Meanwhile, co-digestion with OPEFB enhances process stability, optimizes the C/N ratio, and improves methane production by 20–40% depending on substrate ratio and pretreatment. The integration of POME–OPEFB co-digestion can substantially reduce greenhouse gas emissions and provide value-added biofertilizers, thereby strengthening the environmental and economic sustainability of palm oil mills. Despite technological advances, several challenges remain, including high investment cost, OPEFB pretreatment, and limited policy support for grid connection. Further development of scalable, low-cost digesters and biogas upgrading systems is essential to realize the full potential of biogas as a renewable energy pathway within the palm oil sector.
Evaluation of Site-Specific Methane Emission Factors from Biogas Production in Tapioca Industrial Wastewater Treatment Systems Eva Martha Pratiwi; Dewi Agustina Iryani; Rahmat Safe'i; Agus Haryanto; Samsul Bakri; Udin Hasanudin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.811-820

Abstract

Tapioca processing in Indonesia generates high-strength wastewater that can emit substantial methane (CH4) without sufficient treatment. The objective of this study is to determine a site-specific methane emission factor (B₀) for biogas power generation based on an anaerobic covered lagoon (ACL) and compares it with the IPCC default. Research was conducted on biogas power plant based on cassava wastewater with a capacity of 2 × 1.5 MW in Central Lampung. Twenty-two months of full-scale monitoring database included wastewater flow, COD, biogas yield volume, and methane concentration across wet and dry seasons. The results show that covered anaerobic lagoon systems with biogas recovery can effectively reduce fugitive methane. Using AMS-III.H and IPCC methods, a strong linear relationship between methane production and COD removal produced a site-specific B₀ of 0.2302 kg CH4/kg COD (0.321 m3 CH4/kg COD), slightly below the IPCC value. Lower yield was likely influenced by seasonal dilution, operational variability, and partial degradation of cassava-based organics. Results of this research emphasize the need for site-specific emission factors to improve Indonesia’s GHG inventories and mitigation strategies.
Co-Authors Afid Fitro Setiawan Afrian, Chandra Agata Desinta Yoanma Aldi Saputra Alim Fadila Rahman Amieria Citra Gita Amieria Citra Gita Anak Agung Gede Sugianthara Bagus Saputra Budianto Lanya Budianto Lanya Christine Wulandari David SS Marpaung Dermiyati Dermiyati dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Disca Anggi Pratiwi Dwi Cahyani Dwi Cahyani Dwi Dian Novita Dwi Haryono Dyah Isworo Eka Noer Soe'mah Eka Noer Soe'mah Elhamida Rezkia Amien Eva Martha Pratiwi Eza Yolan Yuswansyah Febryan Kusuma Wisnu Febryanto, Indra Gumay Gita, Amiera Citra Gusri Akhyar Ibrahim Hizami Ch Anwar Indah Kusmindarti Indra Gumay Febryano Irma Thya Rani Irwan Sukri Banuwa Jacky Michael Pah Jamalam Lumbanraja Jiho Yoo Karina Gracia Agatha Tambunan Khoiril Anam Kusuma Adhianto Liman Liman Lisman Suryanegara Lutfi Wahyuni Mareli Telaumbanua Melya Riniarti Mirwan Saputro Mochamad Zakky Muhamad Inu Fauzan Muhammad Agus Windra Muhammad Amin Muhammad Haviz Muhtarudin muhtarudin Mulyani, Yessi Murdapa, Fauzan Nomi Setyowati Nur Soemah, Eka Oktafri Oktafri Ovita Yozana Puspita Yuliandari Rahmat Safe'i Rahmi Adi Bazenet Raizummi Fil’aini Rani, Irma Tya Ristanti Ristanti Rivan Okfrianas Rizky Wahyuni Rizza Wijaya Samsul Bakri Sandi Asmara Sangdo Kim Savinda Afista Seldi Prayoga Shilvia Vera Sinaga Shintawati Shintawati Shintawati, Shintawati Sigit Prabawa Sihyun Lee Sisi Agustin Siti Asfiatul Mukaromah Siti Mutiara Ridjayanti Siti Suharyatun Sri Hidayati Sri Rahayoe Sri Waluyo Sugeng Triyono Suharyadi Suharyadi Syamsiar, Syamsiar Tamrin Tamrin Tamrin, Tamrin Tiara Aninditha Titin Yulianti Tri Wahyu Saputra Tri Wahyu Saputra Tri Yulianto Tri Yulianto Ucok Hasiholan Udin Hasanudin Ully Silviana Viffit Desiyana Wahyu Hidayat Wahyu Ratnaningsih Warji Warji Winda Rahmawati Winda Rahmawati Winda Rahmawati Wulan Sari Zelzha Arinnesia Varanita