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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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KAJIAN POTENSI GAS RUMAH KACA DARI SEKTOR SAMPAH DI TEMPAT PEMROSESAN AKHIR SAMPAH (TPA) RANDEGAN, KOTA MOJOKERTO Rini, Titien Setiyo; Kusuma, Maritha Nilam; Pratiknyo, Yuwono Budi; Purwaningrum, Sri Wulan
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.v6i1.145

Abstract

The final disposal of waste generation is a major environmental challenge in urban areas, especially in developing countries. Waste generation in developing countries will continue to grow as seen from the economic growth and changes in the consumptive patterns of the people, where current lifestyles and activities produce quantity of waste quickly. Waste is not only produced from households, but also from public facilities, such as school, institution, health, offices, markets, hotels, restaurants, and industries which later contribute to the generation of waste in the landfill. Waste management activities in landfills can produce various kinds of greenhouse gas emissions. This study aimed to determine the potential for greenhouse gas emissions from the rate of waste generation in Randegan TPA, Mojokerto City according to the parameters of the waste composition. Based on the research results, it was known that emissions generated from household waste amounted to 1.35 Gg CH4 and 3.72 Gg CO2, while non-domestic waste is 0.264 Gg CH4 and 0.728 Gg CO2.
PENGEMBANGAN WILAYAH PESISIR TIMUR KOTA TARAKAN BERDASARKAN SARANA DAN PRASARANA Prihartanto, Eko
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.v6i1.146

Abstract

Tarakan City is an island that has a coast and as the largest city located in North Kalimantan Province which makes tourism as one of the main sectors. Regional development is carried out to determine community needs in the future. This study used quantitative and descriptive qualitative data analysis research using a scalogram analysis to determine the location of growth centres based on the availability of facilities and infrastructure of each region's infrastructures. Based on the analysis of the scalogram showed the hierarchy area by the division of the category based on facilities and infrastructures in the northern coastal area of ​​the Tarakan city.
PENGIDENTIFIKASIAN SEGMENTASI PENGGUNA SISTEM MANAJEMEN PEMBELAJARAN SEBUAH UNIVERSITAS DENGAN METODE TWO-STEP CLUSTERING Purnama, Agus Rachmad; Larasati, Aisyah
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.v6i1.147

Abstract

This study aims to identify user segmentations of a learning management system at Universitas Negeri Malang using two-step clustering method. Data is collected through an on-line survey which is linked onto the academic information systems. Total number of data are 10.594 responses. This study runs three clustering methods, two-step, k-means, and kohonen clustering, in order to identify the user segmentation. Two-step clustering methods performs better than the other two clustering methods (k-means and kohonen) based on silhouette clustering index. The number of cluster resulted from two-step clustering method are three clusters. The top three of most important factors in identifying the user segmentation are the benefit of the learning management usage in helping to access information, increasing the effectiveness of accomplishing assignments, and students satisfaction on the learning management system services.
PENGGUNAAN MEDIA BIOBALL DAN TANAMAN KAYU APU (Pistia stratiotes) SEBAGAI BIOFILTER AEROBIK PADA PENGOLAHAN LIMBAH CAIR RUMAH TANGGA Pramita, Ayu; Prasetyanti, Dwi Novia; Fauziah, Dini Nur
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.v6i1.148

Abstract

Household liquid waste, which is the residue from the activities of soapy water or bathing water, detergent water from washing clothes, faeces, washing water from cooking utensils containing oil in the settlement. This liquid waste problem needs to get serious attention, because it has complex characteristics and can disturb the health of the environment. One of the efforts to manage the environment is the processing of household wastewater through a series of physical and biological treatments, namely the aerobic biofilter process and using plant bioindicators, namely apu wood (Pistia stratiotes) which is able to absorb various heavy metals such as Fe, Zn, Cu, Cr, and Cd. Domestic wastewater used in this study was greywater, it was from kitchen activities. The purpose of this study was to determine the efficiency of reducing BOD, TSS, and fat oil in residual waste resulting from household activities by processing aerobic biofilter using bioball media and apu wood plants. The process of this research included the process of bacterial culture (seeding) for ± 2 (two) weeks and then proceeded by replacing new waste in the reactor for 5 (five) days at the biofilter reactor in which there was a bioball media and apu wood plants with downward and upward flow using a reactor made of glass with certain dimensions with a discharge of 0.35 ml/sec. The process results in a reduction efficiency of BOD of 70.51% from an initial BOD concentration of 300 mg/L to 88.49 mg/L. The efficiency of reducing TSS was 74.97% from the initial concentration of TSS 321 mg/L to 80.33 mg/L. In addition, the efficiency of reducing fat oil was 73.20% from the initial concentration of fatty oil 300.36 mg/L to 80.51 mg/L, so it can be explained that processing with bioball and apu wood plants can reduce the parameters of BOD, TSS, and fat oil, but the value was still above the standard quality of Minister of Environment Regulation No. 68/Menlhk/Setjen/Kum.1/8/2016.
KINETIKA REAKSI PEMBENTUKAN TRIKALSIUM PHOSPHATE (Ca3(PO4)2) DARI KALSIUM KARBONAT BERBAHAN BAKU CANGKANG KUPANG PUTIH Pujiastuti, Caecilia; Nofitasari, Luluk; Erfani, Rif’atul Firda
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.v6i1.149

Abstract

The development of the health sector to search alternatife material bone’s repair is increasing. Bone is a natural composite containing 60% minerals, 30% matrix, and 10% water. The component of bone mineral is calcium phosphate. Tricalcium phosphate is the type of calcium phospate that used because it has chemical component’s as like bone’s component. In this study, white mussel shell was chosen as a source of calcium and H3PO4 as a solvent. The aim of this research was determining reaction kinetics of tricalcium phospate synthesis from white mussel shells. The research was started by dissolving 50 grams of white mussel shell in 1 L of H3PO4 3% at reaction time with variation 2, 4, 6, 8, 10 minutes and reaction temparature with variation 40, 50, 60, 70, 80oC and then filtered. The filtrate was analyzed for the content of phosphoric acid while the residue was calcined at 900oC for 5 hours to remove the water. The reaction rate increased with increasing time and temperature. The highest phosphate acid conversion was obtained at a temperature of 80 ° C, with a reaction time of 10 minutes is 90.92%. The controlling step that controlled tricalcium phosphate synthesis from white mussel shell followed pseudo first-order equation with the Arrhenius equation.The results of XRD analysis found that89%of Ca3(PO4)2was formed.
PEMANFAATAN LIMBAH BATANG UBI KAYU DAN PLASTIK SEBAGAI BAHAN BAKU PEMBUATAN PAPAN PARTIKEL Widodo, Laurentius Urip; Pratama, Fibriangi Miya Enggar; Prastya, Sandika Mudji
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.v6i1.150

Abstract

Particle board consists of sheets of material made from wood chips or materials containing lignocellulose such as flakes and strands to be joined by using a binder and by providing various aids such as heat and press. The purpose of this research was to study the physical value (moisture content, thickness development, and density) and mechanical properties (elasticity and tensile strength) and its conformity to SNI. Particle board making in this study was a mixture of wood powder with plastic Low Density Polyethylene (LDPE) with a composition according to variable pressure pressed with 25 kg/cm2 with long pressing at the required temperature for an hour and added with 30 minutes of packing. The variables used were temperature and material composition. The making of particle board from cassava powder and plastic LDPE based on air content test, thickness development, and straight tensile strength were appropriate to SNI. The best results obtained in this study was the composition comparison of plastic LDPE: wood powder (80; 20) with a temperature of 160℃ with a moisture content of 1,2027%, thickness development of 9.217 %, density of 0,831 g/cm3, MOE of 21304,600 kgf/cm2, and perpendicular tensile strength of 31,094 kgf/cm2. This particle board passed all tests and have the average value and better characteristics compared to others.
ANALISIS BEBAN KERJA PERSONIL SORTIR PADA PROSES PRODUKSI SEDIAAN KAPSUL LUNAK DI PT X Suryandari, Mercyska; Hatidja, Siti Annurijati; Avanti, Christina
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.v6i1.151

Abstract

Productivity is one of the important aspects that must be owned by a company to achieve the goals. Therefore, to improve productivity, it is necessary to analyze the workload of employees and improve the work procedures. Workload analysis carried out in this study aimed to determine the optimal workforce requirements of the sorting process in the soft capsule production unit at Pharmaceutical Company PT X. The observational method has been applied to this study. The data of this study were obtained by observing the process directly and conducting face-to-face interviews with the employees at the location of soft capsule production. Based on the workload analysis using a Full-Time Equivalent (FTE) method, it was found that a total value of 2.07 was obtained from the eleven activities in the sorting section. If the FTE was assessed for each person in the sorting section, then the FTE value for each personnel was 0.52. This value is in the underload category. Therefore, the number of personnel and the work procedures need to be adjusted.
EFEKTIFITAS MODUL ELEKTRONIK TERINTEGRASI MULTIPLE REPRESENTATION PADA MATERI IKATAN KIMIA Ramdhani, Eka Putra; Khoirunnisa, Fitriah; Siregar , Nur Asti Nadiah
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.v6i1.152

Abstract

This research aimed to categorize the results of an electronic module effectiveness that integrated by multiple representation on chemical bonding. The research approach used in this research was descriptive quantitative. The effectivity results of N-Gain pretest and posttest of students critical thinking skills in the control class were 0.3 with the low category and the experimental class were 0.6 in the medium category, and the results of independent t-test on sig. (2-tailed) of 0.047<0.05, it meant that there were significant differences between the results of the control and experimental classes. Based on the results of study, it was found that the electronic module integrated multiple representation of high school chemistry learning in chemical bonding material was effective to be used in the learning process.
STUDI EFISIENSI REAKTOR RAPID SAND FILTER DALAM PENURUNAN COD PADA AIR LIMBAH PENCUCIAN IKAN DI PASAR IKAN SIDOARJO Oktavia, Lily; Khurin’ In
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.153

Abstract

The existence of many fisheries products is directly proportional to the number of existing fish markets, including the Sidoarjo Fish Market in the eastern ring area. The many activities in this fish market produce wastewater that must be considered for its management so as not to pollute the surrounding environment. These activities forexample from fish washing activities. The parameters of water used for washing fish are organic, with organic pollutants high enough, namely COD. The purpose of this study was to determine the reduction in levels of BOD (5,20) treatment of wastewater from fish washing from the Sidoarjo Fish Market using sedimentation tub reactors and Rapid Sand Filters (RSF). The research phase will be carried out using a laboratory scale using a Precipitating Body as a pretreatment and RSF as a secondary treatment. The research began with a preliminary test to determine the influent quality of fish washing water effluents, then pretreatment was conducted. RSF uses buffer media in the form of: zeolith and gravel Influent discharge effluents are varied in two variables 10 liters / dayand 15 liters / day. The processing results from the RSF were then analyzed by BOD parameters (5.20) for 4 consecutive days using the standard EPHA method. The results showed that treating fish washing wastewater using sedimentation tanks and RSF can reduce the content of organic pollutants through BOD parameters (5.20) with an effectiveness reaching an average of 90% with gravel media and 95% with zeolith media. So it can be concluded that the fish washing wastewater from the Sidoarjo fish market can be treated before being discharged into the river so that the BOD pollutant can be reduced up to 95% using RSF technology with zeolith media. Keywords: Fish Washing Liquid Waste, BOD, Rapid Sand Filter, Zeolith.
PERANCANGAN PENINGKATAN DAYA SAING UKM BANDENG DI KABUPATEN SIDOARJO DENGAN METODE QUALITY FUNCTION DEPLOYMENT(QFD) Rina Sri Wulandari; Rizki Amalia Putri
Journal of Research and Technology Vol. 4 No. 2 (2018): JRT Volume 4 No 2 Des 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i2.154

Abstract

Sidoarjo has become one of the districts with the largest number of SMEs and milkfish processing SMEs being one of the superior in Sidoarjo District. However, the increasing number of milkfish processing industries even from outside Sidoarjo District has caused this industry has to be able to compete with various similar businesses from various regions. Therefore, a strategy is needed to improve SMEs competitiveness of processed milkfish. According to these problems, the design of increasing the competitiveness was carried out with the method of Quality Function Deployment (QFD). The QFD method was used because this method could be used to plan and develop products in a structured manner and allowed the development team to clearly define customer needs and expectations, and evaluate the ability of a product or service systematically to meet those needs and expectations. Customer needs and expectations based on the House of Quality matrix consisted of 4 indicators including products, prices, packaging, and marketing. While the criteria used were 14 criterias. Development priorities based on House of Quality were marketing, packaging design, quality of additional materials, quality of raw materials, content of additional materials, production equipment, and the use of packaging materials. Keywords: SMEs, Quality Function Deployment, House of Quality.

Page 30 of 46 | Total Record : 454

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