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Desain dan Produktivitas Crushing Plant dalam Upaya Memenuhi Target Produksi Batubara Sebesar 500 Ton/Jam di PT. Dizamatra Powerindo Lahat Provinsi Sumatera Haryanto, Agus; Hendro Purnomo; Erry Sumarjono
Retii Vol 18 No 1 (2023): Prosiding Seminar Nasional ReTII ke-18 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

PT. Dizamatra Powerindo merupakan perusahaan yang bergerak di bidang penambangan batubara dengan sistem tambang terbuka. Perusahaan ini memiliki 3 (tiga) ROM yang aktif beroperasi dalam melakukan crushing batubara dan akan membangun ROM baru (ROM 4) dengan kapasitas sebesar 500 Ton/Jam. Sehingga diperlukannya desain dengan memperhatikan ketentuan-ketentuan yang menjadi standar perancangan crusher plant agar mencapai rencana produksi sebesar 500 Ton/Jam. hasil penelitian ini berdasarkan desain yang dibuat, desain crushing plant dengan target produksi 500 Ton/Jam, dapat dibuat dengan desain yang menggunakan 1 belt feeder, 3 belt conveyor, 1 vibrating screen dan 1 double roll crusher. Produktivitas rencana Crashing plant adalah, produktivitas BF01 502,608 Ton/Jam, produktivitas CP01, 510,812 Ton/jam, produktivitas RC 610,412 Ton/Jam, produktivitas CP02 518,853 Ton/Jam, dan produktivitas CP03 525,407 Ton/Jam. Dengan hasil produktivitas tersebut, secara teoritis dapat disimpulkan bahwa dengan target produksi 500 Ton/jam dapat terpenuhi.
Pemberdayaan Masyarakat Pengelolaan Sampah melalui Bank Sampah Kelurahan Tugurejo Kecamatan Tugu, Kota Semarang Haryanto, Agus; Maryono, Maryono
Scientica: Jurnal Ilmiah Sains dan Teknologi Vol. 3 No. 2 (2024): Scientica: Jurnal Ilmiah Sains dan Teknologi
Publisher : Komunitas Menulis dan Meneliti (Kolibi)

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Abstract

Program Bank Sampah dibentuk untuk mengurangi atau menghentikan sampah dari sumbernya. Dari upaya pemilahan dan pengelolaan tersebut, ternyata terdapat potensi ekonomi yang dapat dikembangkan untuk meningkatkan kesejahteraan warga. Penelitian ini bertujuan untuk mengetahui pemberdayaan Masyarakat dalam upaya pemilahan dan pengelolaan sampah rumah tangga yang dilakukan warga di Bank Sampah Kelurahan Tugurejo, potensi ekonomi di dalamnya serta strategi pengembangan masyarakat untuk mengembangkan potensi ekonomi dan sirkular ekonomi berbasis Bank Sampah. Jenis penelitian ini adalah penelitian kualitatif dengan menggunakan teknik analisis deskriptif kualitatif. Berdasarkan hasil penelitian, potensi ekonomi di Bank Sampah di Kelurahan Tugurejo berasal dari kegiatan bank sampah. Berbagai faktor internal dan eksternal menentukan sukses atau tidaknya pemberdayaan Masyarakat dalam pemilahan dan pengelolaan sampah rumah tangga berbasis Bank Sampah dikembangkan. Oleh karena itu, penelitian ini merekomendasikan kepada sejumlah pihak terkait untuk bekerjasama dalam meningkatkan keterlibatan dan keterampilan warga untuk meningkatkan pemberdayaan Masyarakat dalam pemilahan dan pengelolaan sampah rumah tangga  berbasis Bank Sampah.
Kajian Industri Arang Dari Kayu Akasia (Acacia mangium) Di Kecamatan Bumi Nabung Kabupaten Lampung Tengah Kinanti, Sekar; Haryanto, Agus; Kuncoro, Sapto; Suharyatun, Siti
Jurnal Agricultural Biosystem Engineering Vol 1, No 3 (2022): September 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i3.6333

Abstract

One way to increase the energy and economic value of wood waste is to convert it into charcoal through the pyrolysis process. The purpose of this study was to determine the performance of the acacia wood charcoal industry and the characteristics of acacia wood charcoal. Data collection was carried out by observing the production process of acacia wood charcoal in Bumi Nabung District, Central Lampung Regency. Parameters included charcoal yield, processing capacity, charcoal characteristics (bulk density, moisture content, ash content, water absorption, and calorific value), and economic analysis of small-scale charcoal industry. The results showed that the production system still uses traditional methods, starting from the preparation of raw materials, preparation of raw materials, installation of boxes, adding soil to the boxes, burning, cooling and harvesting. Based on cooling method, charcoal production was grouped into two, namely natural and water spraying cooling. Sprayed charcoal has the characteristics of water content 5.1%, ash content 2.99%, bulk density 0.256 g/cm3 and calorific value 30.42 MJ/kg. While the characteristics of natural cooled charcoal were 2.52% moisture content, 1.78% ash content, 0.123 g/cm3 bulk density and calorific value 32.93 MJ/kg. The monthly profit obtained wass IDR656.918,64 for sprayed charcoal and IDR167.227,46 for natural charcoal. Keywords: Acacia, Charcoal, Cooling, Pyrolysis, Yield.
Pengaruh Durasi Penekanan dan Ukuran Partikel terhadap Kualitas Pelet Serbuk Gergaji Simanjuntak, Fajar Agustus; Wisnu, Febrian Kusuma; Telaumbanua, Mareli; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 1, No 3 (2022): September 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i3.6331

Abstract

This study aims to determine the effect of pressing duration and particle size on the pellet characteristics of sawdust. The study was conducted in a factorial completely randomized design using two factors. The first factor is the duration of the suppression which consists of four levels, namely 60, 120, 180, and 240 seconds. The second factor is particle size which consists of 40 mesh (fine), 30 mesh (medium), 20 mesh (coarse), and mixed. Sawdust is taken from a furniture industry in Bandar Lampung, then dried in the sun to a moisture content of about 12%, then sieved. Pellet molding was carried out with a mass of about 3 grams of material using a hydraulic press with a mold diameter of 12 mm. Sawdust is fed into the mould, then pressed by a hydraulic system at a pressure of 2 tons (172 Mpa). Parameters observed included density, moisture content, water absorption, pellet strength, pellet color, ash content and durability index. Each measurement was carried out with three replications. The results showed that the pressing duration and particle size affected the pellet characteristics. Biomass pellet made from sawdust had characteristics such as density of 0.813-0.856 g/cm3, moisture content of 8.19-12.15 %, maximum water absorption of 7.06-9.32 %, drop resistance of 99.41-99.66 %, and ash content of 1.087-2.082 %. Keywords: Density, Durability Index, Duration of Compression, Particle Size, Moisture Content.
Pengaruh Pupuk Organonitrofos dan Volume Irigasi Terhadap Pertumbuhan Mint (Mentha piperita L.) Organik Triyono, Sugeng; Marisa, Marisa; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 2, No 2 (2023): June 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i2.7222

Abstract

Mint (Mentha piperita L.) is one of the aromatic herbs. The aim of this research was to investigate the effect of organonitrophos (organic fertizer) and irrigation water volume on the growth and yield of organically cultivated mint. The experiment was conducted in a completely randomized design (CRD) with two factors, namely the dose of organonitrophos consisting of 4 levels: D0 (0%), D1 (10%), D2 (30%), and D3 (50%) of the total weight of the media, and irrigation volume consisting of I1 (20-40%), I2 (50-70%), and I3 (80-100%) of the field capacity. The results showed that the dose of organonitrophos fertilizer and irrigation water volume affected the growth and yield of mint. The treatment that statistically produced the highest oven-dried weight (18.67 grams per plant) was D3I2 (50% compost fertilizer and 50-70% irrigation water). The treatment that produced the highest fresh weight (104.7 grams per plant) and was the most efficient was D2I1 (30% compost dose and 20-40% irrigation water). However, as a consequence, the choice of D2I1 significantly reduced the weight of oven-dried yield to 13.33 grams per plant.  Keywords: Organic, Mentha, Piperita, Organonitrofos, Irrigation
Karakteristik Pellet dari Bagas Tebu Haryanto, Agus; Pratama, Yuko Armandho; Triyono, Sugeng; Suharyatun, Siti
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): March 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i1.6931

Abstract

Sugarcane bagasse is the remaining solid waste from sugarcane (Sacharum officinarum) milling which has the potential to be developed as solid fuel in the form of pellets. The purpose of this study was to determine the effect of variations in pressure and particle size on the characteristics of pellets from sugarcane bagasse. The research was carried out with a combination of variations in particle size (fine, medium, and coarse) and pressure (1, 2, and 3 tons). The results showed that sugarcane bagasse has the potential to be developed as a pellet fuel because it has a relatively high calorific value, an average of 16.53 MJ/kg. Sugarcane bagasse pellets meet SNI 8675-2018 standards in terms of moisture content, density, and ash content. The results showed that although the ash content of the pellets was affected by the particle size, in general, the characteristics of the pellets were not significantly affected by the treatment factors (pressure and particle size as well as their interactions). Sugarcane bagasse pellets have a high water absorption capacity, so they require a good storage method. Keywords: Densification, Density, Pressure, Particl Size, Strength
Pemanfaatan Limbah Serat Kelapa Sebagai Bahan Tambahan Pembuatan Paving Block Rahmawati, Winda; Marcus, Patrice Kevin; Wisnu, Febryan Kusuma; Haryanto, Agus; Telaumbanua, Mareli; Sugianti, Cicih
Jurnal Agricultural Biosystem Engineering Vol 3, No 3 (2024): September 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i3.10161

Abstract

Indonesia is one of the largest coconut producing countries in the world, Lampung Province itself has a coconut plantation area of 91.8 thousand hectares with a production of 81.9 thousand tons in 2021. One alternative of the uses of coconut fiber is as a mixing material for porous paving blocks. This study aims to make porous paving blocks with additional coconut fiber and to determine the physical characteristics of paving blocks with a mixture of coconut fiber. This study used a completely randomized design consisting of 4 treatments and 5 replications with a sample size of 40 pieces divided into destructive and non-destructive tests. The method of making paving blocks in the study was that the fiber was mixed with a mixture of cement and sand, then molded and conditioned for 28 days. The tests carried out were visual tests, water absorption tests, infiltration tests, density tests and compressive strength tests. The results of the study showed that the addition of coconut fiber to the paving block mixture affected the results of the test of the characteristics of porous paving blocks) Keywords: Coconut Fiber, Deformation, Ductile, Infiltration, Pore Space. 
Pemberian Campuran Nutrisi AB Mix dengan Limbah Cair Kelapa Sawit Sebagai Pupuk pada Tanaman Sawi Hijau (Brassica chinensis var. Parachinensis) dengan Metode Hidrponik Zuleika, Divia Laila; Triyono, Sugeng; Tusi, Ahmad; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 3, No 3 (2024): September 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i3.9946

Abstract

Palm oil mill effluent (POME), discharged by palm oil processing industry, is potentially recovered as substitution of AB mix, a nutrient solution for hydroponic. The objective of this research is to test the use of the treated POME in the mixture with AB mix to cultivate green mustard. The method in this study uses a factorial Completely Randomized Design (CRD) with 2 factors.  The first factor, namely POME (K) consists of 2 levels, namely Pond 3 (K3) and Pond 4 (K4).  The second factor is the mixture of AB Mix and POME, which consists of 5 levels of the POME percentages namely: 0% (P0), 25% (P25), 50% (P50), 75% (P75), and 100% (P100). Results showed that the increasing percentages of POME additions tended to decrease the growth of green mustard. The best treatment was obtained on treatment of P0, 100% AB mix with no POME addition based on plant height, number of leaves, and water consumption. Keywords: AB Mix, Green Mustard, Hydroponic, POME, Wick System
Pengaruh Ukuran Partikel dan Perekat Taipoka Terhadap Sifat Biopelet dari Limbah Serbuk Gergajian Permatasari, Dea; Rahmawati, Winda; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 2, No 2 (2023): June 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i2.7469

Abstract

Biopellets from sawdust can be an alternative solution for dealing with sawn waste. This study aims to determine the effect of sawdust particle size and adhesive content on the characteristics of the resulting pellets. The study was conducted in a completely randomized two-factor design. The first factor was particle size which consisted of 4 levels, namely fine, medium, coarse, and mixed. The second factor was the tapioca flour as adhesive material consisted of 3 levels, namely 10%, 15% and 20%. Pellets were made using a single die with a diameter of 8 mm which was pressed using a hydraulic jack with a capacity of 5 tons. Parameters to be measured included moisture content, calorific value, ash content, density, and pellet strength (durability index). The raw material of wood sawdust has physico-chemical characteristics including 9.4% moisture content, 6.04% ash content, and 18.58 MJ/kg calorific value. The results showed that pellets had specific gravity between 1.018-1.086 kg/L, moisture content between 13.26-14.42%, and ash content between 0.98-2.42%. The resulting pellets have an average strength of more than 99%. Keywords:  Biopellet, Calorific Value, Pellet Characteristics, Wood Sawdust.
Penambahan Arang Batok Kelapa pada Produksi Biogas Campuran Kotoran Ayam dan Kotoran Sapi Haryanto, Agus; Putri, Laily Rahmadani; Suharyatun, Siti; Telaumbanua, Mareli
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): March 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i1.6874

Abstract

This study aims to determine the effect of adding coconut shell biochar on biogas production from a mixture of chicken manure and cow manure. The research was conducted using a batch type digester with an active volume of 2000 mL. The substrate consists of a mixture of chicken manure and cow manure with a weight ratio of 1:1 and 3:1. Biochar from coconut shells is mashed and added at a rate of 3 grams. Parameters observed included ambient temperature, initial and final pH, biogas production and methane content in biogas. The results showed that the addition of coconut shell charcoal had a negative effect which was marked by a decrease in cumulative biogas production. The highest cumulative biogas production was obtained in the treatment without the addition of biochar, both K1B0 and K2B0. Biogas from the K2B0 treatment has a higher CH4 content than those of other treatments. Keywords: Biogas Production, Methane, pH, Substrate Rasio, Temperature