Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal INTAN Jurnal Penelitian Tambang OPHIOLITE : Jurnal Geologi Terapan
Wopari, Felice Deglardini
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
STUDY OF CALCULATION OF RUNAWAY DISCHARGE INTO EFO SETTLING POND AT PT GAG NIKEL, SOUTHWEST PAPUA PROVINCE: KAJIAN PERHITUNGAN DEBIT LIMPASAN YANG MASUK PADA SETTLING POND EFO DI PT GAG NIKEL PROVINSI PAPUA BARAT DAYA Wopari, Felice Deglardini; Ginting, Fandi Arapenta; Hajijah, Fajrianti Nur; Tandy, Lia Medy
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.294

Abstract

Settling Pond EFO is one of the mine water management facilities managed by PT Gag Nikel, functioning as a water reservoir and sedimentation deposition site. This study evaluates the suitability of the Settling Pond EFO capacity to the incoming runoff discharge, especially in high rainfall conditions. Based on the analysis results, the runoff discharge entering the Settling Pond EFO reached 0.42 m³/second, with a catchment area of ​​0.188 km² and a rainfall intensity of 10.54 mm/hour. The evaluation showed three main findings: (1) There is a change in volume between the initial design of the pond and the actual conditions due to long-term use; (2) The Settling Pond EFO has the potential to be full if it rains for 11 hours; and (3) The Settling Pond capacity has not been optimally utilized, with the remaining unfilled volume of 1,636.90 m³. These results indicate the importance of optimizing the capacity and management of the Settling Pond to overcome the risk of excess runoff.
Hydrogeochemical Analysis to Identify Potential Groundwater Characteristics in the Jayapura Region Wopari, Felice Deglardini; Suwarman, Rusmawan; Iskandar, Irwan
OPHIOLITE: Jurnal Geologi Terapan Vol 7 No 3 (2025): On Progress
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/ophi.v7i3.p112-122

Abstract

Hydrogeochemistry and stable isotope δ18O and δ2H are chemical methods used to understand the chemical process of water flows in the aquifer. This study aims to identify the characteristics of groundwater and surface water in the Jayapura area.  Water samples are collected from 87 points throughout the study area. The results of hydrogeochemical analysis on the main ions presented in the piper diagram show that the dominant water type is Ca/Mg-HCO₃-. In addition, other water types such as Ca-HCO₃-, Na-HCO₃-, Mg-SO42-, Ca-Cl, and Na-Cl are found. Rainwater is used as the reference line in the diagram, referred to as LMWL (local meteoric water line), with the equation H = 7.019δ18O + 7.5162 and a correction coefficient of 0.997. Stable isotope analysis of δ18O and δ2H in groundwater and surface water shows that most of the water is within the range of the LMWL reference line. There are two points above the LMWL reference line with Ca-Cl water type. The result of this study indicated that the characteristics of water resources in the Jayapura area are influenced by the interaction between water and mineral weathering near the surface. This interaction provides a natural and good water resource potential in the region.
Co-Authors Ginting, Fandi Arapenta Hajijah, Fajrianti Nur Irwan Irwan Suwarman, Rusmawan Tandy, Lia Medy