cover
Contact Name
Nurida Finahari
Contact Email
nfinahari@fdi.or.id
Phone
+628113649799
Journal Mail Official
jatiemas@fdi.or.id
Editorial Address
Jl. Sidoagung, Perum Guru 52 Singoasari, Malang 65153 Jawa Timur
Location
Kab. malang,
Jawa timur
INDONESIA
Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
ISSN : -     EISSN : 25500821     DOI : https://doi.org/10.36339/je.xxxx
Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) is a scientific journal published by the Perkumpulan Dosen Indonesia Semesta (DIS), East Java Regional Board, with E-ISSN 2550-0821. The journal is published quarterly, in March, June, September, and December. Jati Emas aims to serve as a publication platform for scholarly works based on applied engineering and community service activities, particularly for early-career lecturers, students, and authors developing their scientific publication skills. The journal emphasizes author mentoring to ensure articles meet scientific standards, novelty, and publication ethics, and implements a published-in-ready system to accelerate the publication process. Its focus and scope include innovation and application of appropriate technologies, solving real community problems through scientific and engineering approaches, implementation of community service programs with direct impacts on community capacity building and welfare improvement, as well as the development of cross-disciplinary applied methods and practical solutions oriented toward social benefits.
Arjuna Subject : Umum - Umum
Articles 302 Documents
Analysis of the Settling Ponds Effectiveness in Reducing the Quality of Bauxite Ore Mining Wastewater: Analisis Efektivitas Settling Pond dalam Menurunkan Mutu Air Limbah Tambang Bijih Bauksit Sairuddin, Rudy Mohammad; Rachmanto, Tuhu Agung; Maulana, Akmal Dzikri
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 2 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i2.509

Abstract

This study aims to evaluate the effectiveness of the Settling Pond (SP) system in reducing the pollutant load of bauxite ore mining wastewater and formulate technical recommendations for optimizing its performance. The evaluation was conducted through analysis of water quality parameters (Total Suspended Solid/TSS, pH, Fe, and Mn) and hydraulic characteristics using Reynolds (Re) and Froude (Fr) numbers. The SP system studied consisted of 10 units with four compartments involving gravity sedimentation processes and the addition of coagulant chemicals. The results of the study showed that the TSS removal efficiency reached 94%, with a decrease in concentration from 1,200 mg/L at the inlet to 120 mg/L at the outlet. Hydraulic conditions showed laminar flow (Re < 500) and subcritical (Fr < 1) which supported the optimal sedimentation process. The effluent quality met environmental quality standards according to applicable regulations. This study confirms that the SP system plays an important role as a water pollution control technology in bauxite mining activities. Optimization of residence time, coagulant dosage adjustment, and routine maintenance are recommended to continuously improve system performance.
Environmental Care Action: Coastal Clean-Up And Ecosystem Rehabilitation Through Bakau (Mangrove) Seedling Planting At Cibery Beach, Jayapura City: Aksi Lingkungan: Pembersihan Sampah Dan Rehabilitasi Ekosistem Pantai Melalui Penanaman Bibit Bakau Di Pantai Cibery Kota Jayapura Rahman Rahman; Noper Tulak; Octolia Togibasa; Yane O. Ansanay; Sony Wardoyo; Ego Srivajawaty Sinaga; Sudarmono Sudarmono; Benny A. Bungasalu; Kezia N. Anou; Martina Bunga’; Tatang Sutarman; Khaeriah Dahlan
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 2 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i2.516

Abstract

The degradation of coastal ecosystems due to waste accumulation and the decline of mangrove vegetation has become an increasingly significant environmental challenge in the coastal areas of Jayapura City. This community service program aimed to improve the environmental quality of Cibery Beach through an integrated action consisting of coastal clean-up activities, underwater waste collection through diving, and ecosystem rehabilitation by planting mangrove (bakau) seedlings, conducted in commemoration of the 28th Anniversary of the Faculty of Mathematics and Natural Sciences, Universitas Cenderawasih. The implementation employed a participatory approach based on Participatory Action Research (PAR) and service learning, involving lecturers, students, local communities, and environmental volunteers. The activity stages included site assessment, environmental education on coastal conservation, coastal and underwater waste removal, mangrove seedling planting, and initial post-planting monitoring. The results demonstrated a reduction in waste accumulation along the coastline and underwater areas, as well as the stable establishment of mangrove seedlings as an initial step toward ecosystem rehabilitation. Ecologically, the program has the potential to support shoreline stabilization and improve coastal habitat quality, while socially enhancing environmental awareness and community participation in conservation efforts. This integrated action model is recommended as a sustainable approach to collaborative coastal ecosystem management between universities and local communities.