ppt photocatalyst and its applications
TRANSCRIPT
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TREATMENT OF
WASTEWATER USINGPHOTOCATALYSIS
Sikder M Selimuzzaman
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Outline
Introduction
Methodology
DiscussionConclusion
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Introduction
Effuent of industry is a mixture suspended,
dissolved organic and inorganic pollutants
The level of treatment
releminery
Treatment
!rags, sticks
etc"#
rimary
Treatment
!ss,om,
etc"#
Secondary
Treatment
!$io%organic
Matter, ss#
Tertiary
Treatment
!rss, &ut
rient, etc#
'dvance
Treatment
!DM, SS#
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Effuent of industr
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So!e AOPs
O H COOH 22 pollutant +→+°
°
°
°
→
+ → +
+→+
OH O H
OOH OO H
OOH OO H
uv
uv
2
2
32
22
232
2322
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Ho" OHo !iner#li$e t%e
&ollut#nt '
O H COOH 22 pollutant +→+°
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Ho" &%otoc#t#ltic
de(r#d#tion )PC*+ occur'
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P%otoc#t#ltic de(r#d#tion
)PC*+
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(ay out of the photoreactor
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P%otore#ctor durin( t%e
e,&eri!ent#l run
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Results #nd discussion)P%otoc#t#ltic de(r#d#tion of S-O./ Effect of U0 li(%t #nd TiO-+
Ti!e )!in+
) *)) +)) )) -))
S -
O .
) ! ( 1 l +
)
+)
-)
.)
/)
*))
*+)
*-)
*.)
*/)
+))
++)
S+0 +)) mg1l 234 and Ti0+5
S+0 +)) mg1l 234 and no Ti0+5
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Fi(ure/ hotocatalytic degradation of S+0 and corresponding
formation of S0-
Ti!e )!in+
) +) -) .) /) *)) *+) *-) *.) */) +))
S -
O . 2
S O 3
) ! ( 1 l +
)
+)
-)
.)
/)
*))
*+)
Degradation of S+0
, *)) mg1l 2p6 75
8ormation of S0- 2p6 75
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Conclusions #nd
reco!end#tions
&o S+0, can $e removed either 34 or Ti0+ or
$oth"
Solar light in place of 34 light lamp can $eused to reduce the pollutant
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T%#n4 ou