Abstract
In this study, step-wise extraction using various extracting agents was carried out in order to enhance the removal of metals from contaminated dredged marine sediment. Five-times repeated extraction using HCl could extract approximately 23% of the As from the sediment, while NaOH extracted 14% of the As with a single extraction. An alternate application of EDTA and HCl extracted 17%, 34%, 9%, 87%, and 41% of the Cd, Cu, Ni, Pb, and Zn, respectively. Step-wise extraction reduced the risk index (RI) of heavy metals to 49% compared with untreated sediments, which were caused mainly from the decrease in the Cd concentration after chemical extraction in sediment.
| Original language | English |
|---|---|
| Pages (from-to) | 536-544 |
| Number of pages | 9 |
| Journal | Separation Science and Technology |
| Volume | 50 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2015.03.4 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 14 Life Below Water
Keywords
- marine sediment
- metal fractionation
- risk assessment
- step-wise metal extraction
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Petroleum
- Engineering - Chemical
- Chemistry
Fingerprint
Dive into the research topics of 'Step-Wise Extraction of Metals from Dredged Marine Sediments'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver