Surfactant-Modified Zeolite as a Slow Release Fertilizer for Phosphorus
IR@NEERI: National Environment Engineering Research Institute
View Archive Info| Field | Value | |
| Title |
Surfactant-Modified Zeolite as a Slow Release Fertilizer for Phosphorus
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| Creator |
Bansiwal, Amit Kumar
Rayalu, Sadhana Suresh Labhasetwar, Nitin Kumar Juwarkar, Asha Ashok Devotta, Sukumar |
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| Subject |
Agriculture
Chemistry, Chemical Technology |
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| Description |
The feasibility of using surfactant-modified zeolite(SMZ)as a carrier for fertilizer and for slow release of phosphorus (P)was investigated. Zeolite-A was modified by using hexadecytrimethylammonium bromide, a cationic surfactant, to modify its surface to increase its capacity to retainanion, namely, infrared, and scanning electron microscopy to study the effect of surfactant modification. Zeolite-A and SMZ were then subjected to P loading by treating them with fertilizer(KH2PO4). It was observed that the P loading on SMZ increased by a factor of 4.9 as compared to the unmodified Zeolite-A. A comparative study of the release of P from fertilizer-loaded unmodified zeolite-A and SMZ and from solid KH2PO4 was performed using the conatant flow percolation reactor. The result show that the P supply from fertilizer-loaded SMZ was available even after 1080 h of continuous percolation, whwreas P from KH2PO4 was exhausted within 264 h. The result indicate that SMZ is a good sorbent for PO4, and a slow release of P was achievable. These properties suggest that SMZ has a great potential as the fertilizer carrier for slow relese of P.
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| Publisher |
American Chemical Society
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| Date |
2006
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://neeri.csircentral.net/19/1/bansiwal_2006.pdf
Bansiwal, Amit Kumar and Rayalu, Sadhana Suresh and Labhasetwar, Nitin Kumar and Juwarkar, Asha Ashok and Devotta, Sukumar (2006) Surfactant-Modified Zeolite as a Slow Release Fertilizer for Phosphorus. Journal of Agricultural and Food Chemistry (54). pp. 4773-4779. |
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| Relation |
http://neeri.csircentral.net/19/
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