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m fo d |
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121116s2012 txu obm 000 0 eng d |
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|a (OCoLC)ocn818354617
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|a (OCoLC)818354617
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|a (TxCM)http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11764
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|a TXA
|c TXA
|d UtOrBLW
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| 049 |
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|a TXAM
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|a 2012
|a Dissertation
|a 1969.1/ETD-TAMU-2012-08-11764
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|a Vellanki, Bhanu Prakash.
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|a Advanced reduction processes - a new class of treatment processes.
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|a [College Station, Tex.] :
|b [Texas A&M University],
|c [2012]
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|a 1 online resource.
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|a text
|b txt
|2 rdacontent
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|a computer
|b c
|2 rdamedia
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|a online resource
|b cr
|2 rdacarrier
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|a "Major Subject: Civil Engineering"
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|a Description from author supplied metadata (automated record created 2012-10-22 13:24:58).
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| 502 |
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|b Doctor of Philosophy
|c Texas A&M University
|d 2012
|o http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11764
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|a Includes bibliographical references.
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|a Text (Dissertation)
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|a A new class of treatment processes called Advanced Reduction Processes (ARP) has been proposed. The ARPs combine activation methods and reducing agents to form highly reactive reducing radicals that degrade oxidized contaminants. Batch screening experiments were conducted to identify effective ARP by applying several combinations of activation methods (ultraviolet light, ultrasound, electron beam, microwaves) and reducing agents (dithionite, sulfite, ferrous iron, sulfide) to degradation of five target contaminants (perchlorate, nitrate, perfluorooctanoic acid, 2,4 dichlorophenol, 1,2 dichloroethane) at 3 pH levels (2.4, 7.0, 11.2). These experiments identified the combination of sulfite activated by ultraviolet light produced by a low pressure mercury vapor lamp as an effective ARP. More detailed kinetic experiments were conducted with nitrate and perchlorate as target compounds and nitrate was found to degrade more rapidly than perchlorate. The effects of pH, sulfite concentration, and light intensity on perchlorate and nitrate degradation were investigated. The effectiveness of the sulfite/UV-L treatment process improved with increasing pH for both perchlorate and nitrate.
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|a Electronic resource.
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|a Major Civil Engineering.
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|a ferrous iron
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|a reduction
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|a perfluorooctanoic acid (PFOA)
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|a sulfite
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|a Advanced Reduction Processes
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|a oxidation
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|a nitrate
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|a electron beam
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|a radical
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|a 1,2 dichloroethane (1,2 DCA)
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|a perchlorate
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|a 2,4 dichlorophenol (2,4 DCP)
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|a ultraviolet light
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|a Advanced Oxidation Processes
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|a dithionite
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|a Batchelor, Bill,
|e thesis advisor.
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|u http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11764
|z Link to OAK Trust copy
|t 0
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|a C0
|b TXA
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| 948 |
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|a cataloged
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|c 2012/11/16
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|f 1:10:52 pm
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|a MARS
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|t 0
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| 952 |
f |
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|a Texas A&M University
|b College Station
|c Electronic Resources
|d Available Online
|t 0
|e 2012 Dissertation 1969.1/ETD-TAMU-2012-08-11764
|h Other scheme
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| 998 |
f |
f |
|a 2012 Dissertation 1969.1/ETD-TAMU-2012-08-11764
|t 0
|l Available Online
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