cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Arman Harahap
Contact Email
armanhrahap82@gmail.com
Phone
+6285370005518
Journal Mail Official
ijersc@gmail.com
Editorial Address
Jl. SM. Raja, Kota Rantauprapat, Sumatera Utara, Indonesia
Location
Unknown,
Unknown
INDONESIA
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 375 Documents
 1   2   3   4   5 
Albizia Forest Management System In The Madiun Distric Rekyani Puspitawati, Indah; Susanto, Anang
International Journal of Science and Environment (IJSE) Vol. 2 No. 3 (2022): August 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.916 KB) | DOI: 10.51601/ijse.v2i3.37

Abstract

communities in using natural resource areas. This study aims to determine the advantages of the agroforestry system, which is a mixture of albizia and mountain rice.  The agroforestry system gave the best growth of albizia  after three years.  The mean Annual Increment diameter and height of 3-year-old albizia plants in agroforestry systems were 14.02 cm and 7.19 m, respectively. The agroforestry system is also believed to reduce the number of forest damage because local people who originally stole forest wood have begun to be diverted to more productive planting activities with an intensification pattern. The involvement of local communities in business activities based on natural resource management in various forms is part of the concept of corporate social responsibility. The agroforestry system is superior to the intensive monoculture pattern because it can absorb more labor and increase the income of local communities, creating cooperation and togetherness between companies. Furthermore, an agroforestry system can reduce the number of forest and land fires because local communities, as arsonists, will help protect their land and crops.
The Effectiveness of Water Treatment in the Wastewater Treatment Plant (WWTP) of the Tempe Industry and Benefits to the Community Bayu Kartikasari, Ika; Butar-Butar, Binsar; Rachmi Indahsari, Siti; Adi Suhendra, Ahmad
International Journal of Science and Environment (IJSE) Vol. 2 No. 4 (2022): November 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.368 KB) | DOI: 10.51601/ijse.v2i4.40

Abstract

The results of the tempe-making process will produce waste that is harmful to theenvironment from the washing, boiling, pressing and printing processes. The tempeindustry in Plaju ulu village is a source of community income. Tempe industryactivities produce waste that can pollute the environment, causing unpleasant odors.The wastewater treatment plant built by Pertamina RU 3 Plaju has a positive impactin reducing the impact of the tempe industry liquid waste. The formulation of theproblem raised (1) The results of the effectiveness of the Plaju Tempe IndustryWWTP. (2) Recommendations for WWTP technology that can be used in the PlajuTempe Industry. The parameters used to measure the quality of the effluent are pH(degree of acidity), COD, BOD, TSS, and (Total Suspended Solid) during July andAugust 2022. To determine the quality of wastewater produced, data fromlaboratory test results must be compared with quality standards. waste water inaccordance with the Regulation of the Minister of Environment of the Republic ofIndonesia No. 5 of 2014. From the results of the processing effectiveness, theeffectiveness of COD, BOD, and TSS was found to be 53.81%; 11.05%; and 22.65%.From the results of this processing, it is still considered not able to reduce thepollutants generated from the tempe industry activities. The pH and TSS parametersstill do not meet the quality standards. The recommended waste treatment isanaerobic biofiltration, anaerobic digester, and phytoremediation in improving theparameters of pH, COD, BOD, and TSS in the tempe-making industry
Coastal Area Development Through Mangrove Planting And Tree Foster Parents As Climate Change Restoration And Mitigation Efforts Sedari Village, Cibuaya District, Karawang Regency Ismail, Taufik; Putra, M.Andhika; Insani M, Cita
International Journal of Science and Environment (IJSE) Vol. 2 No. 4 (2022): November 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.629 KB) | DOI: 10.51601/ijse.v2i4.44

Abstract

The global community is faced with a number of problems such as the climate crisis. The coastal area is one area that is vulnerable to abrasion and the impact of the climate crisis. Sedari Village is one of the areas on the coast that has the risk of abrasion and climate change. Therefore, PT Pertamina Patraniaga Cikampek BBM Terminal carries out a coastal area development program through planting mangroves and foster parent trees. Community empowerment activities aim to map the activities needed for environmental restoration. Within the framework of management science in general, activities consist of planning, organizing, implementing, and evaluating. Within the framework of management science in general, activities consist of planning, organizing, implementing, and evaluating. Based on community empowerment activities, it is concluded that coastal area development activities through mangrove planting and OTAP initiation have a high urgency value. then the activity is a collaboration between communities based on academic, industrial, community, government and media groups.
Rabbit Farming Management Practices: A Case Of An Emerging Rabbit Farmer/Producer Paladan, Nerisa
International Journal of Science and Environment (IJSE) Vol. 2 No. 4 (2022): November 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.319 KB) | DOI: 10.51601/ijse.v2i4.45

Abstract

Promoting rabbit (Oryctolagus cuniculus) farming responses to the challenges in food security and agricultural sustainability. The purpose of this study is to describe the management practices of emerging rabbit farmers/producers in rural areas in relation to their housing practices, feeding, breeding, and healthand disease management. Also, it identifies the benefit and challenges of rabbitfarming. Furthermore, a framework was developed in capacitating the rabbitfarmers/producers to make rabbit farming ventures a sustainable livelihood in rural areas. Descriptive research was utilized; 33 rabbit farmers are the respondents of this study; a snowball sampling technique was used to identify the respondent. In- depth semi-structured interviews and observation were used in gathering the data. Findings revealed that farmers invest in galvanized wire cages but some use local materials like bamboo and used wood however they need to improve their housing design even its backyard rabbit raising. The majority uses a combination of rabbit pellets & forages that are locally available for feeding the rabbit. Also, most of them acquire their rabbit breed from local rabbit breeders where the challenge to the farmers is the quality and the inbreeding. Skin disease and diarrhea are common diseases in rabbits andfarmers have knowledge of identifying the symptoms and also curing them. Themajor benefit of rabbit production it gives an additional source of income forrabbit farmers/producers while the major challenges are inadequate/limited knowledge of rabbit production and an unreliable market for rabbit breeds and meat.
Macroalgae Abundance And Cover As Ecological Indicators Of Coral Reef Management In The Waters Of Katapang Village, West Seram Regency, Maluku Province Sangaji, Masudin
International Journal of Science and Environment (IJSE) Vol. 2 No. 4 (2022): November 2022
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.808 KB) | DOI: 10.51601/ijse.v2i4.47

Abstract

Macroalgae are the main competitors for coral reefs in fighting for aquatic ecological space in coral reef ecosystems. The purpose of this research; Knowing the condition of the aquatic environment, the abundance and cover of macroalgae, and the potential of macroalgae for indicators of coral reef management in the coastal waters of Katapang Village. Data on the physical condition of the waters were measured in situ while macroalgae data for each research station were obtained using the LIT (Line Intercept Transect Method). Macroalgae taxa were identified using an identification guide book from FAO (1998). The distribution of each type of macroalgae was mapped spatially based on the distribution conditions of the macroalgae at each study station. The results showed that the condition of the waters of the coral reef ecosystem in Katapang Village was supportive for the growth of macroalgae. The macroalgae found came from 3 orders, 4 families, 5 genera and 8 species. The results also indicate that the abundance and cover of macroalgae determines the shift in dominance in reef ecosystems so that these two factors can be used as indicators of coral reef management.
Study Of Soil Physical Properties Of Oil Palm Plants (Elaeis Guinensis Jacq) In The Labuhanbatu University Practice Area In Rantau Selatan District Utandi Harahap, Sabribal; Syawal Harahap, Fitra; Walida, Hilwa; Rizal, Khairul
International Journal of Science and Environment (IJSE) Vol. 4 No. 3 (2024): August 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.217 KB) | DOI: 10.51601/ijse.v4i3.49

Abstract

The physical properties of the soil that need to be considered are the problem of degradation and soil structure due to management functions so that cultivated land is not eroded and organic matter is lost quickly.This research was carried out through 2 stages of activities, namely field activities and analysis activities. Stages of field activities were carried out at the Palm Oil Plantation on the Practical Land of Labuhanbatu University, Labuhanabtu, North Sumatra Province at a height of 28 meters. The method used in this research is a free grid measurement method at a semi-detailed survey level (observation frequency of 1 sample per 500 meters). Carrying out soil sampling at up to 5 sampling points with a distance of 100 meters in the field using a random method, spread over a predetermined area based on the base map. Results of land use research withSoil texture in the Labuhanbatu University Practice Field, Labuhanbatu Regency, sandy loam, The bulk density value shows low, soil porosity is still high, the soil color looks relatively dark, and the soil water content is still relatively normal.
Study Invasive Mollusks Melanoides tuberculata and Achatina fulica in District Labuhan Batu Selatan Harahap, Arman
International Journal of Science and Environment (IJSE) Vol. 1 No. 1 (2021): November 2021
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.983 KB) | DOI: 10.51601/ijse.v1i1.50

Abstract

District Labuhanbatu selatan has natural/artificial inland waters for various usages. For example, freshwater has supported various activities such as agriculture, plantations, inland fisheries, and ecotourism. This study reports the presence of invasive mollusk in freshwater (Melanoides tuberculata) and terrestrial (Achatina fulica) habitats. This study is the first report regarding the spatial distribution of the three invasive mollusk species in the inland waters of District Labuhanbatu selatan. These invasive mollusks species are a severe threat to the preservation of native species and human health because they are an intermediate host for several types of parasites, such as the trematode group. The spreading and rapid development of these invasive mollusks is caused by their reproductive ability and resistance to poor environmental quality and airborne dispersal factors by birds, water flow, and commercial activities. This invasive species can directly cause huge economic losses as they become a pest inagricultural activities, plantations, and freshwater fisheries (aquaculture). They also can transmit pathogens and displacement of native species. Therefore, it is recommended to have a preventive effort to tackle the expansion of in District Labuhanbatu selatan.
Efficient Removal Of Bromate From Aqueous Solution Through Electrocoagualtion Using Aluminum Electrodes M. Abu Ghalwa, Nasser; El din El Nazer, Hossam; B. Farhat, Nader; Sror, Mahmud
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; FS, Harahap; Ainy Dalimunthe, Badrul; Hariyati Adam, Dini
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 Cipta, Hendra; Fitriana Hasibuan, May
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

Page 3 of 38 | Total Record : 375

 1   2   3   4   5 

Filter by Year

2021 2026


Reset
Filter By Issues
All Issue Vol. 6 No. 1 (2026): February 2026 Vol. 5 No. 4 (2025): November 2025 Vol. 5 No. 3 (2025): August 2025 Vol. 5 No. 2 (2025): May 2025 Vol. 5 No. 1 (2025): February 2025 Vol. 4 No. 4 (2024): November 2024 Vol. 4 No. 3 (2024): August 2024 Vol. 4 No. 2 (2024): May 2024 Vol. 4 No. 1 (2024): February 2024 Vol. 3 No. 4 (2023): November 2023 Vol. 3 No. 3 (2023): August 2023 Vol. 3 No. 2 (2023): May 2023 Vol. 3 No. 1 (2023): February 2023 Vol. 2 No. 4 (2022): November 2022 Vol. 2 No. 3 (2022): August 2022 Vol. 2 No. 2 (2022): May 2022 Vol. 2 No. 1 (2022): February 2022 Vol. 1 No. 1 (2021): November 2021 More Issue