Magnetic characterization and heavy metals pollutions of sediments in Citarum River, Indonesia

Magnetic methods have been successfully used for pollution detection and mapping in riverine environment. These methods are considered faster and easier compared to conventional analytical methods. In this study, sediment samples from Citarum River, the largest river system in West Java Province and...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2019-04, Vol.1204 (1), p.12082
Main Authors: Sudarningsih, S, Aliyah, H, Fajar, S J, Bijaksana, S
Format: Article
Language:English
Subjects:
Heavy metals
Lead
Magnetic measurement
Magnetic methods
Magnetic permeability
Magnetic properties
Magnetism
Magnetization
Manganese
Mercury (metal)
Nickel
Pollution detection
Saturation
Sediments
Water supply
Zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnetic methods have been successfully used for pollution detection and mapping in riverine environment. These methods are considered faster and easier compared to conventional analytical methods. In this study, sediment samples from Citarum River, the largest river system in West Java Province and main water supply for more than 10 million people, were measured for their magnetic characteristics and heavy metals content to test the effectiveness of magnetic methods in detecting heavy metals pollution. Magnetic measurements include measurements of magnetic susceptibility (MS), isothermal remanent magnetization (IRM) saturation, and anhysteretic remanent magnetization (ARM) decay. The results show that mass-specific MS values tend to decrease from upstream to downstream, from 1127.3 to 393.2× 10−8m3kg−1. In all samples, the dominant magnetic mineral is found to be magnetite based on the IRM saturation field. The magnetic grains are predominantly multi domain (MD). Geochemical analyses showed that all water and sediment samples contain Fe, Cd, Co, Ni, Pb, Zn, As, Hg, and Mn. The heavy metals content varies irregularly in sediment samples although a negative correlation is found between heavy metals contents and magnetic parameters.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1204/1/012082