A study on development of indigenous integrated microwave-ultraviolet reactor for degradation of <i style="mso-bidi-font-style:normal">p</i>-cresol in aqueous solution
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
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Title |
A study on development of indigenous integrated microwave-ultraviolet reactor for degradation of <i style="mso-bidi-font-style:normal">p</i>-cresol in aqueous solution
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Creator |
Karthikeyan, S
Gopalakrishnan, A Navaneetha |
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Subject |
Microwave-ultraviolet treatment
<i style="mso-bidi-font-style:normal"><span style="font-size:9.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Mangal; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:HI" lang="EN-GB">p</span></i><span style="font-size:9.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Mangal; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:HI; mso-bidi-font-style:italic" lang="EN-GB">-Cresol</span> Photocatalysis Wastewater treatment |
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Description |
458-462
<span style="mso-bidi-language:TA" lang="EN-GB">An integrated microwave-ultraviolet (MW-UV) reactor has been developed indigenously and used for the degradation of aqueous <i style="mso-bidi-font-style:normal">p-</i>cresol. The <i style="mso-bidi-font-style:normal">p-</i>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 TiO<sub>2</sub> (MW-TiO<sub>2</sub>), (v) photodegradation by UV and TiO<sub>2</sub> (UV-TiO<sub>2</sub>), and (vi) simultaneous MW and UV irradiations in presence of TiO<sub>2</sub> (MW-UV-TiO<sub>2</sub>). T<span style="mso-bidi-language: TA" lang="EN-GB">he order of the degradation efficiency is found to be MW-UV-TiO<sub>2</sub>>UV-TiO<sub>2</sub>>MW-TiO<sub>2</sub>>UV-MW>UV>MW. The complete degradation of <i style="mso-bidi-font-style:normal">p-</i>cresol is obtained by MW-UV-TiO<sub>2 </sub>and it is three-fold economical in catalyst requirement than UV-TiO<sub>2</sub>. The degradation of <i style="mso-bidi-font-style:normal">p-</i>cresol followed pseudo first order reaction and the reaction rate (k) for MW-UV-TiO<sub>2</sub> is found to be 3 times greater than that for UV-TiO<sub>2</sub>. The MW-UV-TiO<sub>2</sub> is also 2.3 times efficient in the removal of total organic carbon than UV-TiO<sub>2</sub>. It is also observed that the unit operating cost of conventional UV-TiO<sub>2</sub> and MW-UV-TiO<sub>2 </sub>is almost same. </span></span> |
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Date |
2011-12-24T10:49:43Z
2011-12-24T10:49:43Z 2011-11 |
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Type |
Article
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Identifier |
0975-0991 (Online); 0971-457X (Print)
http://hdl.handle.net/123456789/13278 |
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Language |
en_US
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Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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Publisher |
NISCAIR-CSIR, India
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Source |
IJCT Vol.18(6) [November 2011]
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