Chromium(III) sorption enhancement through NTA - modification of biological materials
Journal Article
·
· Bulletin of Environmental Contamination and Toxicology
- Univ. of Agriculture, Selangor (Malaysia)
The use of low-cost biological materials for the removal and recovery of heavy metals from solution has been investigated extensively in recent times. To enhance their sorption capacities various chemical modifications on the sorbents were attempted. Freer et al. showed that bark from the Pinus radiata (D. Don) had a greater sorption capacity for metals after treatment with both inorganic acid and formaldehyde. Apple wastes treated with phosphorus oxychloride improved the efficiency of removing metal ions. Ethylenediamine tetraacetic acid (EDTA)-modified groundnut, Arachis hypogea, was reported to improve the sorption of cadmium and lead ions. Modifications with the aid of dyes also enhanced metal sorption. Moss and coconut husk (CH) are readily obtainable in Malaysia. Their sorption potential for metals has been reported. This paper reports on the metal sorption enhancement of these two biosorbents after chemical modification with nitrilotriacetic acid (NTA). 13 refs., 5 figs., 2 tabs.
- OSTI ID:
- 518653
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology, Journal Name: Bulletin of Environmental Contamination and Toxicology Journal Issue: 3 Vol. 58; ISSN 0007-4861; ISSN BECTA6
- Country of Publication:
- United States
- Language:
- English
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