PENGARUH H2O2 TERHADAP PROSES FOTODEGRADASI TERKATALISIS TiO2 UNTUK MENURUNKAN NILAI COD LIMBAH CAIR INDUSTRI OBAT HERBAL
The influence of H2O2 on photodegradation process catalyzed by TiO2 to decrease COD value of wastewater from herbal pharmaceutical industry has been studied. The research was initiated by determination of COD degree and determination of the main component contributing of C...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/130323/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=70743 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | The influence of H2O2
on photodegradation process catalyzed by TiO2
to
decrease COD value of wastewater from herbal pharmaceutical industry has been
studied. The research was initiated by determination of COD degree and
determination of the main component contributing of COD in the waste. The
next step was waste photodegradation process which was carried out by
irradiating the mixture of wastewater, TiO2 photocatalyst and H
2O2
in a batch
reactor equipped with UV lamp for 24 hours. In this research, the influences of
TiO2
photocatalyst mass, H2O2
concentration, pH and irradiation time were
evaluated. The value of COD was determined with bichromatometric closed
reflux titration method.
The result showed that herbal pharmaceutical industry contained of
cellulose and lignin as main component of COD contributor with initial COD as
much as 1960 mg/L. The addition of H2O2
on photodegradation catalyzed by
TiO2
could decrease COD value of wastewater effectively. Increasing of TiO2
photocatalyst mass, H2O2
concentration, pH and irradiation time could decrease
COD value of wastewater from herbal pharmaceutical industry effectively. The
COD value of wastewater from industry herbal pharmaceutical could decrease
optimum as much as 359,5 mg/L by using TiO
210 mg, H
2O2
0.2 M, pH 3 and 24
hours of irradiation time. COD value of wastewater from herbal pharmaceutical
industry could decrease until achieve the quality standard regulated by the
Government, 120 mg/L needed with twice step of photodegradation process with
final COD value was 20 mg/L |
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