Iron oxide waste to clean arsenic-contaminated water
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Iron oxide waste to clean arsenic-contaminated water
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| Creator |
Randhawa, N S
Murmu, Nisha Tudu, Shakuntala Sau, D C |
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| Subject |
Waste Utilization
Adsorption Chemical Engineering |
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| Description |
Serious cases of arsenic toxicity of people
drinking water have led to the development of water
purification methods. For instance, arsenic can be removed
from water by adsorption on natural iron oxides. The use of
iron oxide from waste could decrease the cost and recycle
iron. Here, we studied arsenic removal from contaminated
water using iron oxide wastes from a pickling unit of a steel plant. This iron oxide was reduced to magnetic iron oxide in a fluidised bed reactor. We tested arsenic removal from As-spiked solutions and from contaminated waters from West Bengal. Results showed more than 90 % arsenic removal within 10 min. The arsenic concentration of contaminated waters was decreased from 0.010–0.018 to
0.002–0.008 mg/L. We also found that the occurrence of
SO42- and PO43- decreased arsenic adsorption. Iron oxide
waste is therefore a new low-cost and effective arsenic adsorbent to clean water.
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| Publisher |
Springer Verlag
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| Date |
2014-12
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/6993/1/Randhawa-2014-ECLE.pdf
Randhawa, N S and Murmu, Nisha and Tudu, Shakuntala and Sau, D C (2014) Iron oxide waste to clean arsenic-contaminated water. Environmental Chemistry Letters, 12(4) (IF-1.906). pp. 517-522. |
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| Relation |
http://10.1007/s10311-014-0477-z
http://eprints.nmlindia.org/6993/ |
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