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International Journal of Science and Environment
Published by CV. Inara
ISSN : -     EISSN : 28090551     DOI : https://doi.org/10.51601/ijse.v2i4
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics
International Journal of Science and Environment (IJSE) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Science and Environment . Original theoretical work and application-based studies, which contributes to a better understanding all fields of Science and Environment. The aim and scope of the journal Chemistry, Chemical Analysis, Physical Chemistry, Physics, Biology, Ecology, Biodiversity, Zoology, Biochemistry, Mathematics, Environmental Science, Agriculture, Environment, Forestry.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 3 No. 1 (2023): February 2023" : 5 Documents clear
Efficient Removal Of Bromate From Aqueous Solution Through Electrocoagualtion Using Aluminum Electrodes Nasser M. Abu Ghalwa; Hossam El din El Nazer; Nader B. Farhat; Mahmud Sror
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.51

Abstract

In this study the removal efficiency of bromate from aqueous solution using the electrocoagulation process was investigated. The effects of operational parameters such as initial pH, initial bromate concentration, current density, type electrode, salt concentration, and temperature on the removal efficiency have been studied. With an initial pH of 3.7, an initial bromate concentration of 100 mg/L, (current density 22.7 mA/cm2 using Al electrodes, salt concentration of 1.5 g/L NaCl and temperature of 25° C, The results showed that the removal percentage for bromate was 97% using Al/Al electrodes at 10 min. It can be concluded that electrocoagulation process by Al electrode is very efficient and clean process for bromate removal from Aqueous solution.
The Effect Of Giving Supremo Made From Active Glyphosate On The Control Of Banyan Weeds On Oil Palm Plants Produces Using The Root Infusion System Zulfan Ilham; Harahap FS; Badrul Ainy Dalimunthe; Dini Hariyati Adam
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.53

Abstract

The internship activity at PT Supra Matra Abadi Kebun Aek Nabara (KAN) in Bilah Hulu District, LabuhanBatu Regency, North Sumatra Province, this activity was carried out for four months, March-July and the method used was a completely randomized design (CRD) with 2 different treatments, namely by concentration of 6% and 7%. Results: Afdilling III PT Supra Matra Abadi controlled banyan weeds using two treatments, namely manually and chemically. The banyan weed is a nuisance plant, because its life clings to or suffocates the oil palm plant. The negative impacts on oil palm plants are pest attacks, competition occurs, humidity increases, making it difficult for the pruning and harvesting processes. The banyan weed population in PT Supra Matra Abadi is in block C87C and block C87G. The purpose of this study was to determine the effective and efficient concentration in the use of the supremo herbicide with the active ingredient glyphosate. Based on the results of research that has been carried out from the two concentrations of the herbicide supremo 480 SL which is effective and efficient for controlling banyan weeds in oil palm plants, namely a concentration of 7%. Because at a concentration of 6% it takes 30 days to see the banyan weed die
Optimal Vehicle Routing Problem (VRP) For The Distribution Of Medical Devices By Applying The Clarke-Wright Algorithm Hendra Cipta; May Fitriana Hasibuan
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.56

Abstract

In the current era of modernization, the development of the need for medical devices is increasing,g so that the companies need goods distribution system with criteria that have speed, safety, and convenience to distribute various kinds of products according to optimal distribution routes. The aim of this study is to overcome the problem of the distribution route for medical devices from PT Alkes Medan because the number of demand for goods varies for each consumers, vehicle capacites, delivery time limits, average speed that can be reached on certain routes and times and the existence of the different conditions of multiple trips at the customer's location. A heuristic algorithm named Clarke-Wright Algorithm is applied in this problem. This algorithm will be later provide an optimal solution to route problem in the distribution of medical devices and provide effectiveness in finding the shortest optimal route of medical device goods distributed to consumers. The optimal route will be described in the results section of this study
The Role Of Inter-Sectors In Agroforestry Development In The Community Forest Environment, Pacitan District Anang Susanto; Marti Winarni Susanto
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.57

Abstract

Communities around the forest need to be encouraged in the development of forestry plants by the community either independently or with the assistance—of the government so that environmental sustainability can be adequately controlled. The development system carried out by the community, in general, is a hybrid system or better known as the agroforestry system. This study aims to identify sectors related to efforts to develop forestry plants.airly well-established economic condition. Development of forestry plants with this system . However, few people also develop a monoculture system, especially those with large enough land and who do not depend on the ground. Building role synergy between sectors supporting the development of forestry plantations is urgently needed to increase the quantity and quality of raw materials to meet the needs of the timber industry, both locally and nationally. Three critical sectors that must synergize in supporting the development of forestry plantations by the community are research and educational institutions, the government, and the market (industry). These three sectors are expected to be able to build attractive incentives for the community so that the community continues to preserve timber plants. Research and educational institutions can provide information and technology related to efforts to increase forestry plant production. Both information and technology from social, economic, and silvicultural or cultivation aspects. Information and technology produced by these research and educational institutions can be used as input and consideration for the government in formulating programs and policies related to developing timber plantations on private land. Through the formulation of its policies and work programs, the government is expected to initiate, facilitate and assist the community in developing forestry plants. Furthermore, the market sector, especially the timber industry, must be encouraged to create a conducive post-harvest climate so that the community continues to be motivated to increase the production of raw wood materials.  
Analysis Of Saponin Content in Ruruhi Plant (Syzygium polycephalum Merr) in Kendari City, Southeast Sulawesi Wa Ode Nanang Trisna Dewi; Fitria Dewi; Ardiansyah Ardiansyah; Aswad Aswad; St. Mantasia
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.58

Abstract

The Ruruhi plant (Syzygium polycephalum Merr.) is a local, unique and flowering plant belonging to the Myrtaceae tribe, the guava group, which disperses by seeds. The purpose of this study was to determine the saponin content in leaf of Ruruhi plant (Syzygium polycephalum Merr.) in Kendari City, Southeast Sulawesi Province. The analysis method uses UV-Vis Spectrophotometry. The results showed that the mature leaf of the Ruruhi plant contained 0,825 mg/10 ml of saponins and 0,566 mg/10 ml of young leaf. Thus there was a difference between the saponin content in young leaf and mature leaf, respectively 0,566 mg/10 ml and 0,825 mg/10 ml.

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