Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Chemistry Indonesian Journal of Chemical Research Jurnal Teknologi
Mulyadi, Irwan
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering

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

Found 2 Documents
Search

 1 
The Multi Soil layering Method for Wastewater Treatment: Review Rahayu, Aster; Mulyadi, Irwan; Fajri, Joni Aldilla; Jamilatun, Siti Jamilatun; Nuraini, Nuraini; Wulandari, Nurul; Marlena, Yuni; Ningsih, Devi Yogi Noviana; Lim, Lee Wah
Indonesian Journal of Chemical Research Vol 10 No 2 (2022): Edition for September 2022
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2022.10-ast

Abstract

Liquid waste is the main source of contamination of water bodies, especially river water. This pollution causes decreased water quality in water bodies. One of the wastewater treatment treatments is the Multi Soil Layering (MSL) method. Some of the advantages of using the MSL method are that it is known to be cheap in terms of cost, easy to implement, does not require complicated maintenance so that it can be used continuously, and is also environmentally friendly. One of the constituent materials of the MSL reactor is andesol soil, gravel, and pearlite. MSL has two wastewater treatment zones, the aerobic zone, and the anaerobic zone. The article review aims to compare the efficiency of reducing the levels of pollutant parameters from aerobic and anaerobic processes in MSLmethod in wastewater.
Konsentrasi Merkuri (Hg) pada Sedimen Amalgamasi yang Dibuang ke Badan Air dari Aktivitas Penambangan Emas Tradisional di Desa Tambang Sawah Kabupaten Lebong Mulyadi, Irwan; Indrawijaya, Budhi; Adlin, Irman Ansari
Jurnal Teknologi Vol 25, No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i2.7509

Abstract

Traditional gold mining activities in Tambang Sawah Village, Lebong Regency, Bengkulu Province, produce tailings waste with high concentrations of mercury (Hg). This waste is discharged directly into the Air Putih River without prior treatment. This research aims to measure mercury levels in the tailings and analyze the relationship between the quantity of discarded tailings and the Hg contamination levels in river sediments. Sampling was conducted following the JPHA method, and Hg level analysis was based on NOAA and ASTM guidelines. The results indicate that all tailings samples from 10 discharge points exceeded the mercury contamination threshold. The total estimated tailings discharged each week reached 1,600 kg from 40 miners. The highest concentrations were found at points with the most miners. A laboratory test on 10 tailing samples collected from discharge points along the Air Putih River showed that all samples contained mercury (Hg), with the highest concentration reaching up to 266 ppm.
Co-Authors Adlin, Irman Ansari Fajri, Joni Aldilla Indrawijaya, Budhi Jamilatun, Siti Jamilatun Lee Wah Lim Marlena, Yuni Ningsih, Devi Yogi Noviana Nuraini Nuraini NURUL WULANDARI Rahayu, Aster