Article Per Year (5 Year)
p-Index From 2020 - 2025
0.888
P-Index
This Author published in this journals
All Journal Jurnal Rekayasa Lingkungan BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan International Journal of Science and Environment
Ray Kentkhute
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Energy Engineering Environmental Science Mathematics Physics Other

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
ANALISIS PENJALARAN API PUNTUNG ROKOK TERHADAP LAHAN GAMBUT Ray Kentkhute; Rukmini A.R.; Aswin Usup
Jurnal Rekayasa Lingkungan Vol. 22 No. 2 (2022)
Publisher : Institut Teknologi Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The argument that arises and is also often mentioned is that one of the sources of fire is cigarette butts that are disposed of carelessly. Cigarette butts from smokers like this are often thrown away when they are still lit and thrown carelessly into the environment they are crossing. The length of time for a cigarette flame to stay burning even though it is not smoked is what will give it the opportunity to ignite other materials that come into contact with it. The treatments in this study were 2 types of white cigarettes, 2 types of filtered kretek cigarettes, 2 types of unfiltered kretek cigarettes which were tested in contact with weed litter, shrubs and peat soil as well as hvs paper, newspaper, and tissue as comparison materials. Based on the results of analysis of variance (ANOVA) showed that each treatment of cigarette butt fire had no significant effect in each treatment. Cigarette butts that are still lit cannot ignite the fire directly on peatlands but the spread of fire from cigarette butts can occur only through the process to vegetation that lives on peatlands, especially shrubs (which are air-dried). Cigarettes that can spread their fire to the bushes with sufficient wind conditions are LA, Gudang Garam Merah, and Dji Sam Soe. The faster the average wind speed received by the cigarette butt fire, the faster it spreads.
WATER QUALITY OF THE KAHAYAN RIVER, PALANGKA RAYA, CENTRAL KALIMANTAN: Kualitas Air Sungai Kahayan, Palangka Raya, Kalimantan Tengah Abdurrahman; Ray Kentkhute; Lutfiah Nur Hasinah
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 11 No. 1 (2023): Journal Balanga Edisi Januari-Juni 2023
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v11i1.10747

Abstract

The Kahayan River is a river that flows in the middle of the city of Palangka Raya, where all forms of human activity exist along the Kahayan river, both for toilets, industry and other tourism activities. This of course will affect the physical and chemical quality of the waters. Coupled with the rise of illegal miners along the Kahayan River, it has damaged the river's ecosystem. Analysis of water quality by comparing water quality to the quality standard thresholds set by the government (PP No.22/2021). Based on the research results, the water quality of the Kahayan River has met the quality standards for several parameters. Among them are physical parameters, namely temperature ranging from 31.7 oC – 32.7 oC, current speed of 0.3 – 0.5 m/sec, TSS 8-14 mg/L, TDS has a range of 345 mg/L – 368 mg/L . while the chemical parameters that have met quality standards include, pH ranges from 7.3 - 7.2 m/L, DO ranges from 7.2 mg/L - 7.5 mg/L. Meanwhile, the water quality of the Kahayan River has exceeded the quality standard for several parameters including physical parameters, namely Brightness 25-31cm, BOD 4.24 mg/L - 4.48 mg/L and COD in the range 13.75 mg/L – 22.74 mg/L.
DESIGN OF BIOMASS FUEL AS ENERGY Ray Kentkhute; Diananto Prihandoko; Handayani Sriwinarno
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 12 No. 1 (2024): Journal Balanga Edisi Januari-Juni 2024
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v12i1.14787

Abstract

Biomass waste from wood carpentry, which amounts to 15-20% of the woody biomass used, is still not fully utilized. Meanwhile, the biomass can be utilized as a renewable energy source derived from natural materials. The design of energy utilization from biomass waste as an alternative energy source for cooking is a simple utilization effort that can be done by the community. So on the stove design to utilize this waste wood chip biomass is done semi-closed combustion with a limited amount of air entry, so that the heat calorie fire stove that occurs will come out centrally on the hole above the stove. So the selected research topic is the way of utilization of wood chip waste biomass into alternative energy sources for cooking needs. The purpose of this research is to get the design of the utilization of biomass waste (wood chips) as an alternative energy source for cooking. The treatment in this study is the number of holes on the bottom plate of the stove, namely: A has 3 holes, B has 4 holes, C has 5 holes, and D has 6 holes. Based on the result of the analysis of variance (ANOVA), it is seen that the value of F- count is much bigger than the F-Table value either 5% or 1%, so Ho will be rejected and receive H1. This means that the treatment of the number of holes on the plate under the design of the biomass waste stove (wood chips) as a fuel gives a very real effect of its ability in the heat achievement to boil test water as much as 1 liter in the test pan. The treatment which gives effect and different from all other treatments is the D treatment with 6 holes on the bottom plate of the stove, which has a larger LSD value for 1%, but for the C treatment with 5 holes on the bottom plate of the stove is only different at the 5% level. While for treatment C to treatment A and B only differ on level of 5% only. The conclusion of this study is that the best stove design is D treatment, with a faster flame stabilized with a more perfect combustion process and leaving only a small amount of charcoal.
Study On Medical Solid Waste Management Policy At RSIA Yasmin Palangka Raya Mukhlas Roziqin, M.; Kentkhute, Ray
International Journal of Science and Environment (IJSE) Vol. 5 No. 4 (2025): November 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i4.256

Abstract

This study aimed to evaluate the policy of solid medical waste management at RSIA Yasmin Palangka Raya. The main issues faced include discrepancies in packaging, collection, storage, and transportation of medical waste. A qualitative descriptive approach was employed using purposive sampling method to collect data through interviews, observations, and document analysis. The research findings revealed that despite the existence of internal policies, there were inconsistencies with the applicable regulations, particularly in waste packaging, segregation, and transportation. The composition of solid medical waste generated included infectious waste, non-sharp infectious waste, and sharp infectious waste. Policy recommendations are suggested to improve waste segregation, staff training, increase transportation frequency, and upgrade storage facilities. By implementing these recommendations, RSIA Yasmin Palangka Raya can enhance the effectiveness of solid medical waste management in accordance with regulations.
Co-Authors Abdurahman Abdurrahman Aswin Usup Diananto Prihandoko Handayani Sriwinarno Lutfiah Nur Hasinah Mukhlas Roziqin, M. Rukmini A.R.