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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) Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Rekayasa Proses INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Agricultural Biosystem Engineering Aceh International Journal of Science and Technology Education, Language, and Arts: Jurnal Pengabdian Kepada Masyarakat
Agus Haryanto
Jurusan Teknik Pertanian, Fakultas Pertanian, Universitas Lampung Jl Soemantri Brojonegoro No. 1 Kampus Gedong Meneng, 35145 Bandar Lampung
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PRODUKSI BIOGAS DARI CAMPURAN KOTORAN SAPI DENGAN RUMPUT GAJAH (Pennisetum Purpureum) Afrian, Chandra; Haryanto, Agus; Hasanudin, Udin; Zulkarnain, Iskandar
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 1 (2017)
Publisher : The University of Lampung

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Abstract

Penelitian ini bertujuan untuk mengetahui produksi biogas dari campuran rumput gajah dan kotoran sapi.  Rumput gajah (25 kg), diperoleh dari petani di Gedong Tataan (Pesawaran) dan berumur 2 bulan saat dipotong, dicacah dengan panjang maksimum 5 cm. Kotoran sapi segar (25 kg) diambil dari Laboratorium di Jurusan Peternakan, Universitas Lampung diencerkan dengan air pada tiga level, yaitu 50 ℓ (P1), 75 ℓ (P2), dan 100 ℓ (P3). Rumput gajah dicampur dengan kotoran sapi dan diaduk rata. Campuran dimasukkan ke dalam digester batch dari drum plastik dengan volume 220 liter. Untuk kontrol hanya digunakan 25 kg kotoran sapi yang diencerkan dengan 25 l air. Semua perlakukan dilakukan dengan dua ulangan. Parameter yang diamati pada penelitian ini meliputi temperatur harian, pH awal dan akhir substrat, kandungan TS dan VS, volume biogas, produktivitas biogas dan komposisi biogas.  Hasil penelitian menunjukan bahwa nilai pH awal semua perlakuan berada pada kisaran normal yaitu 7,73, 8,08, 8,00, 7,20 berturut-turut untuk P1, P2, P3 dan kontrol; sedangkan pH akhir berturut-turut adalah 4,50, 4,62, 6,82, 7,30. Suhu harian rata-rata hampir sama untuk semua perlakuan yaitu 33,15 oC, 29,60 oC, 31,17 oC, dan 30,23 oC. Total dari produksi biogas adalah 439,42 l, 353,02 l, 524.32 l dan 519,27 l berturut-turut untuk P1, P2, P3, dan kontrol dengan produktivitas biogas secara berurutan adalah 42.20 ℓ/kgTS, 33.91 ℓ/kgTS, 50.38 ℓ/kgTS, 72.42 ℓ/kgTS dan produktivitas metana 6,85ℓ/kgVS, 13,38ℓ/kgVS, 69,62ℓ/kgVS dan 102,86ℓ/kgVS.Kata kunci : Biogas, kotoran sapi, rumput gajah, batch, produktivitas
TECHNICAL AND COST PERFORMANCE OF MICROHYDRO POWER PLANT Haryanto, Agus; Fauzan, Muhamad Inu; Lanya, Budianto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

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Abstract

The increase in electricity consumption in one side and the depletion of fossil fuel sources in the other side have triggered Indonesia to support any development of renewable-based electricity generation, including microhydro-based power plant. The objective of this research was to investigate technical and cost performance of microhydro power plant. Observation was conducted on four microhydro power plants located in Bogorejo village, Sub district of Gedong Tataan, Pesawaran District, Lampung Province. The plants were developed and self-managed by the community. Parameters to be measured or recorded included head of water, voltage and electrical current produced from the generator, number of family serviced by the plant, and electricity price that community should pay. Results showed that power output of the plants was ranging from 314 to 1805 W with 2 to 20 families were serviced for each unit. The research revealed that output power was related to the combination factor of head, the diameter of base penstock pipe, and inverse of generator’s pulley size. The output power was also linearly related to installation cost. With an installation cost of 8 to 40 million rupiahs per unit, the electric energy price was in the window of 633 to 973 rupiahs per kWh. It was concluded that Rohman’s microhydro, with power output of 1805 W and energy price of Rp.633/kWh, was the best compared to the others. Keywords: microhydro, performance, energy price, power
KARAKTERISTIK PENGOLAHAN LIMBAH CAIR PABRIK MINYAK KELAPA SAWIT DALAM BIOREAKTOR CIGAR SEMI KONTINU Shintawati, Shintawati; Hasanudin, Udin; Haryanto, Agus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 2 (2017)
Publisher : The University of Lampung

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Abstract

Palm oil mill effluent (POME) waste water contains high consentration of organic pollutants. Anaerobic treatment is suitable to reduce the pollutans and also produce methane as one of renewable energy sources. Anaerobic degradation is complicated and sensitive process to the environtment, such as temperature and organic consentration. This study aims to determine characteristic of palm oil mill waste water treatment using semicontinue anaerobic CIGAR bioreactor. The seed was collected from sludge of anaerobic pond at POME treatment facility of PTPN VII Bekri. The substrat used in this experiment was fresh POME from the same mill. Initially, 4,375m3 of sludge was introduced into the bioreactor. The seed was acclimatized at a loading rate of 50 l/day for about a week. Anaerobic treatment was conducted at room temperature and the substrat was fed semicontinuelly at a loading rate of 100 to 350 liter/day. Results showed, that the stability of anaerobic degradation was achieved at an organic loading rate (OLR) of 0,9-3,11 kg/m3/day with COD removal more than 90% and maximum biogas production of 2,59 m3/day. Keywords : palm oil mill effluent, anaerobic bioreactor, COD removal, biogas.
Application of Artificial Neural Network to Predict Biodiesel Yield from Waste Frying Oil Transesterification Haryanto, Agus; Saputra, Tri Wahyu; Telaumbanua, Mareli; Gita, Amiera Citra
Indonesian Journal of Science and Technology Vol 5, No 1 (2020): IJOST: VOLUME 5, ISSUE 1, 2020
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v5i1.23099

Abstract

Used frying oil (UFO) has a great potential as feedstock for biodiesel production. This study aims to develop an artificial neural  network  (ANN)  model  to  predict  biodiesel  yield produced from base-catalyzed transesterification of UFO. The experiment  was  performed  with  100  mL  of  UFO  at  three different  molar  ratios  (oil:methanol) (namely 1:4,  1:5,  and 1:6), conducted with reaction temperatures of  30 to 55oC (raised by 5oC), and reaction time of 0.25, 0.5, 1, 2, 3, 6, 8, and 10 minutes. Prediction model was based on ANN model consisting  of  three  layers  with  27  combinations  of  three activation  functions  (tansig,  logsig,  purelin).  All  activation function  architectures  were  trained  using  Levenberg- Marquardt train type with 126 data set (87.5%) and learning rate  of  0.001.  Model  validation  used  18  data  set  (12.5%) measured at reaction time of 8 min. Results showed that two ANN models with activation function of logsig-purelin-logsig and purelin-logsig-tansig be the best with RRMSE of 2.41% and  2.44%  with  R2  of  0.9355  and  0.9391,  respectively. Predictions   of   biodiesel   yield   using   ANN   models   are significantly better than those of first-order kinetics.
PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT Rani, Irma Tya; Hidayat, Wahyu; Febryanto, Indra Gumay; Iryani, Dewi Agustina; Haryanto, Agus; Hasanudin, Udin
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 | Full PDF (580.403 KB) | DOI: 10.23960/jtep-l.v9i2.%p

Abstract

Corrigendum to: PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT
Economic Benefit and Greenhouse Gas Emission Reduction Potential of A Family-Scale Cowdung Anaerobic Biogas Digester Haryanto, Agus; Cahyani, Dwi; Triyono, Sugeng; Murdapa, Fauzan; Haryono, Dwi
International Journal of Renewable Energy Development Vol 6, No 1 (2017): February 2017
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.6.1.29-36

Abstract

The objective of this research was to evaluate economic benefit and greenhouse gas (GHG) emission reduction potential of a family-scale anaerobic cowdung biogas digester. Research was conducted at two villages in Lampung Province, namely Marga Lestari, District of South Lampung and Pesawaran Indah, District of Pesawaran. Economic benefit and GHG emission reduction potential were evaluated from LPG saving due to biogas utilisation for cooking and fertilizer substitution by slurry digestate. Results showed that a family-scale anaerobic cowdung biogas digester demonstrated a good potential to reduce GHG emission, but not in economic. A digester with 4 heads of cow produced biogas at a rate of 1582 L/day. With average methane content of 53.6%, energy value of the biogas was equivalent to 167 kg LPG and able to substitute 52 bottles LPG annually. A family-scale biogas contributed 108.1 USD/year and potentially reduced GHG emission by 5292.5 kg CO2e/year resulted from biomethane potential, LPG, and fertilizer savings.Article History: Received November 15th 2016; Received in revised form January 16th 2017; Accepted February 2nd 2017; Available onlineHow to Cite This Article: Haryanto, A., Cahyani, D., Triyono, S., Murdapa, F., and Haryono, D. (2017) Economic Benefit and Greenhouse Gas Emission Reduction Potential of A Family-Scale Cowdung Anaerobic Biogas Digester. International Journal of Renewable Energy Development 6(1), 29-36.http://dx.doi.org/10.14710/ijred.6.1.29-36
Pengaruh Kombinasi Biochar Sekam Padi dan Pupuk Organik Berbasis Mikroba Terhadap Pertumbuhan dan Produksi Sayuran Siti Suharyatun; Warji Warji; Agus Haryanto; Khoiril Anam
Teknotan: Jurnal Industri Teknologi Pertanian Vol 15, No 1 (2021): TEKNOTAN, Agustus 2021
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol15n1.4

Abstract

Pemanfaatan biochar sekam padi merupakan salah satu upaya pengelolaan limbah pertanian untuk memperbaiki karakteristik dan kesuburan tanah. Penelitian penggunaan biochar sekam padi sebagai bahan pembenah tanah sudah banyak dilakukan, tetapi penggunaan biochar sekam padi yang dikombinasikan dengan pupuk organik berbasis mikroba belum banyak dilakukan. Biochar sekam padi dapat menyediakan habitat bagi mikroba tanah, kombinasi biochar sekam padi dengan pupuk organik berbasis mikroba diharapkan dapat memperbaiki karakteristik fisik dan kimia tanah, serta meningkatkan kesuburan tanah sekaligus mengurangi penggunaan pupuk anorganik. Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi penggunaan biochar dan pupuk organik berbasis mikroba terhadap pertumbuhan dan hasil produksi sayuran. Penelitian ini menggunakan 4 perlakuan, yaitu (1) tanpa biochar tanpa pupuk, (2) menggunakan pupuk organik berbasis mikroba, (3) menggunakan biochar dan (4) menggunakan biochar dan pupuk organik berbasis mikroba. Parameter yang diamati dalam penelitian adalah pertumbuhan dan produksi tanaman, serta karakteristik fisik dan kima tanah sebagai pendukung. Pengukuran parameter pertumbuhan tanaman dilakukan secara periodik selama pertumbuhan tanaman, produksi tanaman diukur setelah panen. Hasil penelitian menyatakan bahwa pemberian pupuk organik berbasis mikroba atau biochar pada tanah subsoil berpengaruh meningkatkan tinggi tanaman, jumlah daun, luas kanopi dan total brangkasan tanaman sawi. Kombinasi pupuk berbasis mikroba dan biochar arang sekam menghasilkan rata-rata tinggi tanaman dan total brangkasan lebih besar dibanding pemberian pupuk organik berbasis mikroba saja atau biochar saja.
Anaerobic Treatment for Palm Oil Mill Effluent Using Covered In-the Ground Anaerobic Reactor (CIGAR) Agus Haryanto; Shintawati Shintawati; Udin Hasanudin
Journal of Engineering and Technological Sciences Vol. 53 No. 6 (2021)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2021.53.6.9

Abstract

Wastewater from crude palm oil mills contains high organic matter, which potentially produces biogas through anaerobic digestion processes. The design and operation of an anaerobic bioreactor require a good understanding of the reaction kinetic in the bioreactor. This study aimed to evaluate the biogas production from POME and to determine the kinetic parameters of microbial growth and the substrate utilization rates in a CIGAR. An experiment was conducted using a 5-m3 bioreactor with a working volume of 4.4 m3. Wastewater from the Bekri palm oil mill was stored in a 5-m3 tank. After stabilization, the wastewater was loaded into the reactor at a rate of 100 to 250 L/d, corresponding to a COD loading rate of 1.373-3.097 kg·m-3.d-1, and an HRT of 18-44 days. Monod, Contois, Moser, and Shuler kinetic models were evaluated. The results showed that the Shuler model performed best for microbial activities, while the first order reaction model performed best for the substrate utilization kinetic. The maximum specific growth rate (μmax) for the Shuler model was 0.052 d-1 and the saturation constant (Kso) was 0.119. The maximum substrate utilization rate constant (ks) was 2.183 d-1 and biomass yield (Yx/s) 0.024 kg/kg. The maximum average efficiency of anaerobic degradation (34.4%) occurred at a feeding rate of 100 L/d with methane yield of 0.120 Nm3/kg of removed COD. This value is relatively low compared to the maximum potential of 0.350 Nm3/kg CODr.
Studi Emisi Tungku Masak Rumah Tangga Agus Haryanto; Sugeng Triyono
agriTECH Vol 32, No 4 (2012)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.083 KB) | DOI: 10.22146/agritech.9587

Abstract

The objective of this research was to study emission characteristic of household stoves. Five stoves were tested, namely clay pot biomass stove, brick biomass stove, kerosene stove, coal stove, and LPG stove.  Emission parameters to be measured were CO, NO2, SO2, and particulates. Gas emission was measured using gas analyzer Wolfsense TG 501, while particulate was determined based on Indonesian National Standard (SNI: 19-7117.12-2005). Results showed that LPG stove emitted no CO indicating that complete burning existed. Other stoves emitted CO with kerosene stove exhibited the highest CO emission of 1074 μg/m3. Biomass pot stoves produced SO2 (722 μg/m3) which is lower than LPG stove (1488 μg/m3) and kerosene stove (1055 μg/m3), but higher than coal stove (290 μg/m3). On the other side, biomass pot stoves produced more NO2 (99 μg/m3 with pot stove) as compared to kerosene stove (25 μg/m3). Particulate emission increased based on the fuels used with an order from the lowest was LPG stove, kerosene stove, coal stove, and biomass stove.ABSTRAKTujuan penelitian ini adalah untuk mengkaji karakteristik emisi beberapa tungku atau kompor dapur rumah tangga. Penelitian dilakukan dengan menggunakan lima jenis tungku atau kompor, yaitu tungku biomassa pot tebal, tungku biomassa bata, kompor minyak tanah, kompor batubara, dan kompor LPG. Parameter emisi yang diukur meliputi CO, NO2, SO2 dan partikel. Emisi gas diukur menggunakan gas analyser Wolfsense TG 501, sedangkan emisi partikel debu ditentukan berdasarkan standar SNI 19-7117.12-2005. Hasil penelitian menunjukkan bahwa kompor LPG tidak menghasilkan emisi CO. Kompor minyak tanah menghasilkan emisi CO paling tinggi yaitu (1074 μg/m3). Kompor LPG menghasilkan emisi SO2 paling banyak (1488 μg/m3), diikuti kompor minyak tanah (1055 μg/m3), tungku kayu pot (722 μg/m3), dan kompor batubara (290 μg/m3). Di pihak lain, tungku biomassa pot tebal menghasilkan NO2 lebih banyak (99 μg/m3) dibandingkan kompor minyak tanah (25 μg/m3). Emisi partikulat meningkat menurut jenis bahan bakar yang digunakan dengan urutan dari yang paling rendah adalah LPG, minyak tanah, batubara, dan biomassa.
Analisis Energi Masukan-Keluaran pada Proses Produksi Kelapa Sawit (Elaesis guineensis jacq.) Agus Haryanto; Budianto Lanya; Sugeng Triyono; Mirwan Saputro; Nomi Setyowati
agriTECH Vol 31, No 3 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (38.585 KB) | DOI: 10.22146/agritech.9739

Abstract

This study was performed to evaluate the input-otput energy for oil palm production and to identify the possibility to save energy consumption for activities related to oil palm production. Observation was conducted at PTPN VII Farm Unit of Rejosari, South Lampung. The energy inputs included human power, fuel and electricity as well as indirect energy resulted from the use of farm machinery, fertilizer, and pesticide. Energy outputs to be considered were resulted from full fruit bunch (FFB) consisted of crude palm oil (CPO), palm kernel oil (PKO), fiber, shell, empty fruit bunch, and trunk. The study revealed that total energy input of 57,63 GJ.ha-1 was required in oil palm production. Maintenance of productive plant consumed the highest energy, that was 33,06 GJ.ha-1  or 57,37 % of the total energy input. Based on energy sources, fertilizer was the most important input for oil palm production, accounted for 31,22 GJ.ha-1  (51,18 % of total energy input). The study also concluded that oil palm production generated energy output of 339,14 GJ.ha-1 with energy rasio of 5,88, energy productivity of 0.258 kg FFB per MJ, energy intensity of 3,87 MJ per kg FFB, and net energy gain of 281,51 GJ.ha-1.ABSTRAKPenelitian ini bertujuan untuk menganalisis energi masukan-keluaran dan mengidentifikasi kemungkinan penghematan energi pada proses budidaya kelapa sawit. Penelitian dilakukan di PTPN VII Unit Usaha Rejosari, Lampung Selatan dengan mengamati semua energi yang digunakan dan dihasilkan. Energi masukan terdiri dari tenaga manusia, bahan bakar, energi tidak langsung dari pupuk, pestisida, dan alat-mesin pertanian. Energi keluaran berasal dari tandan buah segar (TBS) dengan komponen minyak sawit, minyak inti sawit, serat, cangkang, dan tandan kosong, serta pelepah. Hasil penelitian menunjukkan bahwa budidaya kelapa sawit memerlukan energi masukan sebesar 57,63 GJ.ha-1  dan menghasilkan energi 339,14 GJ.ha-1. Sebagian besar energi masukan adalah penggunaan pupuk yang mencapai 31,22 GJ.ha-1  (54,18 % dari total energi masukan). Berdasarkan tahapan budidaya, maka pemeliharaan tanaman produktif memerlukan energi yang paling besar yaitu 33,06 GJ.ha-1  (57,37 %). Budidaya kelapa sawit menghasilkan energi neto 281,51 GJ.ha-1 dengan rasio energi 5,88, produktivitas energi 0,258 kg TBS/MJ, dan intensitas energi 3,87 MJ/kg TBS.
Co-Authors 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 Dea Permatasari 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 Eka Oktaviani Elhamida Rezkia Amien Elhamida Rezkia Amien Eza Yolan Yuswansyah Fajar Agustus Simanjuntak Febrian Kusuma Wisnu 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 Iskandar Zulkarnain Jacky Michael Pah Jamalam Lumbanraja Jiho Yoo Karina Gracia Agatha Tambunan Khoiril Anam Kusuma Adhianto Laily Rahmadani Putri Liman Liman Lisman Suryanegara Lutfi Wahyuni Mareli Telaumbanua Marisa Marisa Melya Riniarti Mirwan Saputro Mochamad Zakky Muhamad Inu Fauzan Muhammad Agus Windra Muhammad Amin Muhammad Haviz Muhtarudin muhtarudin Mulyani, Yessi Murdapa, Fauzan Nabila Dea Fadila Nomi Setyowati Oktafri Oktafri Ovita Yozana Puspita Yuliandari Rahmi Adi Bazenet Raizummi Fil’aini Rani, Irma Tya Reza Aprilliandi Ristanti Ristanti Rivan Okfrianas Rizza Wijaya Sandi Asmara Sangdo Kim Sapto Kuncoro Sekar Kinanti 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 Tamrin Tamrin Tamrin, Tamrin Titin Yulianti Tri Wahyu Saputra Tri Wahyu Saputra Tri Yulianto Tri Yulianto Ucok Hasiholan Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Ully Silviana Viffit Desiyana Wahyu Hidayat Wahyu Ratnaningsih Warji Warji Winda Rahmawati Winda Rahmawati Winda Rahmawati Winda Rahmawati Winda Rahmawati Winda Rahmawati Yuko Armandho Pratama Zelzha Arinnesia Varanita