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INDONESIA
Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering
Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.
Arjuna Subject : -
Articles 454 Documents
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PENURUNAN KADAR COD MENGGUNAKAN SARINGAN PASIR DUAL MEDIA PADA PENGOLAHAN AIR MINUM Hamidah, Laily Noer; Rahmayanti, Ardhana
Journal of Research and Technology Vol. 6 No. 1 (2020): JRT Volume 6 No 1 Jun 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i1.207

Abstract

Allowance for COD content in raw water can use a dual media sand filter. Sand filters have various advantages, namely low-cost and environmentally friendly operational costs and are able to produce quality processed water that meets quality standards. This study uses a dual media sand filter with dimensions of sand and gravel depth of 40 cm and 20 cm respectively, running the reactor for 15 days (sampling every 2 days) with 14 days of acclimation. The purpose of this research is to obtain the optimum flow rate from the sand filter reactor in setting aside COD in raw water. The results showed a dual media sand filter reactor unit with a flow rate of 0.3 m3 / m2.hour has a higher efficiency in setting aside COD compared to a reactor with a flow rate of 0.2 m3 / m2.hours which is 52.3%, where the magnitude This removal efficiency is influenced by biological processes in the form of bacterial activity in the schmutzdecke layer and chemical processes in the form of adsorption.
PENGARUH PERLAKUAN AWAL SAMPAH ORGANIK TERHADAP PRODUKSI BIOGAS SECARA ANAEROBIC DIGESTION Dhaniswara, Trisna Kumala; Fitri, Medya Ayunda
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.231

Abstract

The biggest problem currently in Indonesia is accumulated and uncontrolled of garbage amount everywhere, especially organic waste. There are also more methods to utilize waste. One of waste utilization is Biogas. Organic content in organic waste can be used as a substart source for anaerobic bacteria. Initial treatment of organic waste in this study used as a variable, namely chopped and blended. This initial treatment was done before it was mixed with other materials, ie cattle dung and water. 200% water was added to the reactor along with other variables. Temperature, pH and biogas volume were observed for 30 days. Initial treatment factor of organic waste as biogas production substrat showed blend treatment with decay, it had higher biogas production than others. Biogas volume was resulted 189.99 cm3 with a composition ratio of 50% cattle dung and 50% organic waste.Keywords: Biogas, Livestock Manure, Organic Waste.
TRANSESTERIFIKASI MINYAK DEDAK PADI SECARA IN-SITU DENGAN BANTUAN GELOMBANG MIKRO Rahkadima, Yulia Tri; A’yuni, Qurrota
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.232

Abstract

Rice bran as rice milling waste is very promising to be used as raw material of oil producer such as biodiesel oil. The production process by using of microwaves has been studied in this research. The production process was carried out in-situ where the extraction process of rice bran oil and the biodiesel formation reaction occured simultaneously in microwave radiation. Rice bran was obtained from Lamongan area with IR 64 type. The reaction was carried out in modified microwaves with variation of operating conditions on reaction times (10, 30 and 50 min) and weight ratio of rice bran to methanol (1:4, 1:8, 1:12, 1:16 and 1:20). The results obtained were then analyzed by product yield and free fatty acid content. The optimum condition was obtained in the highest yield of the product with the lowest free fatty acid. The results showed that the optimum condition was obtained at reaction time of 30 minutes with the ratio of ricebran:methanol at 1:12. Keywords: Microwave, In-situ, Rice Bran Oil, Transesterification.
PEMANFAATAN KOTORAN SAPI DAN SAMPAH SAYUR PADA PEMBUATAN BIOGAS DENGAN FERMENTASI SAMPAH SAYURAN Fitri, Medya Ayunda; Dhaniswara, Trisna Kumala
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i1.233

Abstract

Biogas is one solution to the use organic waste (livestock manure and vegetables). The aim of the research was to find out the effectiveness of livestock manure and fermentation of vegetable waste into biogas. This research was carried out using fermented vegetable waste for 10-12 days, then it was chopped and blended. The vegetable waste is then mixed with cow dung and water according to the determined variables. The mixture was put into a brown glass bottle and the bottle mouth was closed with a balloon and deposited for 8 days. Furthermore, the CO2 gas produced wasreleased and start to deposite again for 20-30 days. Trapped methane gas obtained from in the balloon was then stored to measure the produced volume and pH and also the methane gas. The results obtained from the research that is were the best pH obtained from vegetable waste blender fermentation treatment (% water100 and the percentage ofKS: SO was 75:25) was 7 and the largest volume was obtained from fermented chopped vegetable waste treatment (water% 300 and percentage KS: SO was 100: 0) of 78.73 cm3. Keywords: Biogas, Fermentation of Vegetable Waste, Cow Manure.
The Kinetics Reaction of Phosphoric Acid Formation from Cow Bone Pujiastuti, Caecilia; Yustina Ngatilah; Muhammad Septianto; Angelia Tantyono
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.234

Abstract

Phosphoric acid can be formed from bone waste, including cow bone which contains calcium phosphate. When reacted with sulfuric acid it becomes phosphoric acid. The purpose of this research was to determine the reaction constant of phosphoric acid from cow bones. The reaction constant can determine the good operating conditions in a reactor design. Starting with the cow bones that have been powdered with a size of 200 mesh, dissolved in the water until saturated. Then saturated solution 500 ml was taken and reacted with 4 N sulfuric acid 100 ml, stirring process was carried out at 200 rpm, with variable temperature were (70oC, 80oC, 90oC, 100oC, and 110oC) and time were (40, 50, 60, 70, and 80 minutes). Next, the sample was filtered, and the sediment was taken, and analysed of phosphoric acid filter and separated the sediment. Based on this research, an equation k = 1.1627 e -3742.4 / T was generated. The graph in picture 5 shows that the equation followed a pseudo first order reaction.
KAJIAN TANAH ENDAPAN PERAIRAN SEBAGAI MEDIA TANAM PERTANIAN KOTA Haryanta, Dwi; Thohiron, Moch.; Gunawan, Bambang
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.236

Abstract

Siltation of the river, ditches, reservoirs in urban areas is a problem because it causes flooding. The government annually undertakes dredging of the precipitate for the flow of water to flow smoothly. Soil sedimentary water potential to be utilized as a medium of planting in the development of urban agriculture. The research was conducted by survey method in water area of Surabaya. The sample was taken using random method of choosing, that is choosing condition of place environment and soil condition which is possible for planting medium. Soil sediment samples were observed for pH, color,structure, texture, organic matter content, Nitrogen (N-total), K2O and P2O5. The result of research showed that all of the textured sedimentary soil content of clay was about 89,87-92,14%, organic material was about 5,96-7,60%, total N was about 0,09-0,13%, K2O was about 0,88-1,12%, and P2O5 was about 2,08-2,44%. The color of soil was grayish-black. The mud deposits of the housing sewer were the most crumbling and the most consumptive reservoir was sludge. Sewage soil sludge is potentially used as a planting medium in the development of urban agriculture. Keywords: Planting Media, Urban Agriculture, Soil Sedimentary.
ANALISIS POTENSI DAN DAMPAK KEBOCORAN GAS HIDROGEN PADA HYDROGEN PLANT DI INDUSTRI PELUMAS Setiawan, Adhi; Hanifah, Dian Nur; Nugroho, Agung; Dermawan, Denny
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.237

Abstract

The increasing need of industrial pure hydrogen is growing. One of its roles is petroleum industry purification. High purity hydrogen (99.99%) was obtained from methane using Steam Methane Reforming Method in hydrogen plant unit. Hydrogen is a very dangerous chemical element with its flammable characteristic. This research was conducted especially on purification system. Quantitative analysis was used to determine hydrogen leakage frequency, consequence modeling, and risk estimation that would be risen. The analysis results showed that the highest frequency occured in unignited release events. Jet fire scenario produced the longest fire length in HPU for about 27 meters. Jet fire scenario impact produced the farthest secure distance in case of a leakage in HPU section of 60 meters. Flash fire produced the farthest distance loss in a leakage case in HPU of 80 meters, and explosion at 200 meters radius would will have a blast overpressure 7.62 psig with 22% fatality estimation of the population. Keywords: Hydrogen Purification Unit, Hydrogen, Consequence Modeling, Risk.
ANALISIS PENINGKATAN KEPUASAN MAHASISWA TERHADAP TEACHING TEAM MATA KULIAH DEPARTEMEN MANAJEMEN TEKNOLOGI ITS Noer, Lissa Rosdiana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.238

Abstract

Improving students’ satisfaction to the teaching subjects team of Department of Technology Management ITS Department was assessed using Gap Analysis. The analysis was chosen to find out the expectation and reality that students served to academic service provided by teaching team. Industrial Management, Project Management, and Information Technology Management. Total subjects were 23 pursued by studnt of 2nd, 3rd, and 4th semester. The data processing results show that there were 17 subjects with valid data. Enhancements needed to improve students’ satisfaction are by implementating midterm exam, final exam, and task (presentation) on schedule, giving lecture material according to the expertises, giving clear and understandable lecture material, giving subjects literature, performing objective and transparent assessment, explaining lesson plan, holding lecture on schedule, being able to understand students’ characteristic, being available for discussion outside the class meetings, accepting criticism and suggestion. Keywords: Teaching Team, Student Satisfaction, Analysis Gap.
PENURUNAN BOD PADA BIOGAS KOTORAN SAPI CAMPURAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT DENGAN VARIASI KECEPATAN DAN LAMA PENGADUKAN Indrawati, Rosiana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.239

Abstract

The scarcity of energy sources, especially fuel oil (BBM) has become a world problem. The abundant cattle dung in the community has not been optimally utilized. In addition, the Tannery Industry (IPK) has not been optimally utilized. The aim of this research was to know the effect of speed and stirring duration to biogas volume and final BOD concentration on cow manure biogas mixed with tannery industry wastewater (IPK). The experiment used biodigester reactor as much as five pieces, one unit as a controller without stirring and four other unit as the test digester with stirring. IPK 0 as a control digester without stirring. Variation of stirring speed were 5 and 10 rpm, and stirring time were 10 and 15 minutes. The volume of biogas was measured for 20 days. BOD level was measured on the last day of fermentation process. The experiment results showed that the highest biogas volume was found on PK10L10 test digester that was mixture of cow manure and tannery industry wastewater (IPK) with variation of 10 rpm and duration of stirring 10 minutes ie 0.904 m3, and the lowest biogas volume was 0,158 m3 in IPK0 digester. The highest decreasing in BOD content was 20% in PK10L15 digester and the lowest decreasing IPK0 digester was 4%. The stirring process had a significant effect on biogas production and decreased BOD concentration in the digester. Keywords: BOD, Tannery Industry Wastewater, Biogas, Cow Manure.
VEHICLE ROUTING PROBLEM DENGAN APLIKASI METODE NEAREST NEIGHBOR Prasetyo, Waluyo; Tamyiz, Muchammad
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.263

Abstract

Transportation problem is just like inventory, this is an activity in logistics area. This activity is possible to make some production in one place and to consume them in another place. The aim of this research were to evaluate the existing network distribution model performance and to provide sugestions to proper the networkdistribution model used. The applied metode to achieve the goal was Nearest Neighbor Algorithm. The results were: (a) Distance saving was 538,2 Km or 26,59%, (b)Distribution time of product could be reduced to 9,37 hours or 19,07%, (c) Fuel cost could be reduced to 403.650 rupiahs or 26,59%, (d) Driver and assistance cost could be saved to 272.850 rupiahs or 4,5%, and (f) Total of distribution cost could be saved to 676.500 rupiahs or 25,71%. Keywords: Logistics, Distribution, Nearest Neighborhod, Distance, Cost.

Page 32 of 46 | Total Record : 454

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