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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(6) [November 2011] >
| Title: | A study on development of indigenous integrated microwave-ultraviolet reactor for degradation of p-cresol in aqueous solution |
| Authors: | Karthikeyan, S
Gopalakrishnan, A Navaneetha |
| Keywords: | Microwave-ultraviolet treatment
p-Cresol
Photocatalysis
Wastewater treatment |
| Issue Date: | Nov-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | An integrated microwave-ultraviolet
(MW-UV) reactor has been developed indigenously and used for the degradation of
aqueous p-cresol. The p-cresol degradation is
carried out in six phases, namely (i) microwave irradiation (MW),
(ii) photodegradation with UV light (UV), (iii) simultaneous microwave and
ultraviolet radiations (MW-UV), (iv) microwave in presence of TiO2
(MW-TiO2), (v) photodegradation by UV and TiO2 (UV-TiO2),
and (vi) simultaneous MW and UV irradiations in presence of TiO2
(MW-UV-TiO2). The order of the degradation efficiency is found to be
MW-UV-TiO2>UV-TiO2>MW-TiO2>UV-MW>UV>MW.
The complete degradation of p-cresol is
obtained by
MW-UV-TiO2 and it is three-fold economical
in catalyst requirement than UV-TiO2. The degradation of p-cresol followed pseudo first order
reaction and the reaction rate (k) for MW-UV-TiO2 is found to be 3
times greater than that for UV-TiO2. The MW-UV-TiO2 is also
2.3 times efficient in the removal of total organic carbon than UV-TiO2.
It is also observed that the unit operating cost of conventional UV-TiO2
and MW-UV-TiO2 is almost same.
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| Page(s): | 458-462 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(6) [November 2011]
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