Novel photocatalytic reactor for degradation of DDT in water and its optimization model

Wei Hai Pang, Nai Yun Gao, Yang Deng, Yu Lin Tang

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

A novel photocatalytic reactor was developed to remove (1,1-bis(4- chlorophenyl)-2,2,2-trichloroethane) (DDT) from water. In the reactor, a cenosphere was used to support TiO2 film made by means of sol-gel. Because the cenospheres were coated with TiO2, their specific gravity was slightly increased from the original 0.6∼0.8 to 0.8∼0.9, so that they were able to be suspended in water. With the mixed operation of a bubbler, the water in the reactor was in a well-fluidized state. The bottom of the reactor is a sand filter bed, which can be used to prevent the photocatalyst from being lost. A mathematical model of the reactor has been developed in the two primary influential factors: ultraviolet (UV) light intensity and photocatalyst concentration. With such a model, the reactor can be designed more reasonably.

Original languageEnglish
Pages (from-to)732-738
Number of pages7
JournalJournal of Zhejiang University: Science A
Volume10
Issue number5
DOIs
StatePublished - 1 May 2009

Fingerprint

Photocatalysts
Degradation
Biological filter beds
Water
Density (specific gravity)
Sol-gels
Sand
Mathematical models
Ultraviolet Rays

Keywords

  • Persistent organic pollutants (POPs)
  • Photocatalytic reactor
  • Reactor model

Cite this

@article{fb29f0c4733c4064a1386cebaeaaebfc,
title = "Novel photocatalytic reactor for degradation of DDT in water and its optimization model",
abstract = "A novel photocatalytic reactor was developed to remove (1,1-bis(4- chlorophenyl)-2,2,2-trichloroethane) (DDT) from water. In the reactor, a cenosphere was used to support TiO2 film made by means of sol-gel. Because the cenospheres were coated with TiO2, their specific gravity was slightly increased from the original 0.6∼0.8 to 0.8∼0.9, so that they were able to be suspended in water. With the mixed operation of a bubbler, the water in the reactor was in a well-fluidized state. The bottom of the reactor is a sand filter bed, which can be used to prevent the photocatalyst from being lost. A mathematical model of the reactor has been developed in the two primary influential factors: ultraviolet (UV) light intensity and photocatalyst concentration. With such a model, the reactor can be designed more reasonably.",
keywords = "Persistent organic pollutants (POPs), Photocatalytic reactor, Reactor model",
author = "Pang, {Wei Hai} and Gao, {Nai Yun} and Yang Deng and Tang, {Yu Lin}",
year = "2009",
month = "5",
day = "1",
doi = "10.1631/jzus.A0820501",
language = "English",
volume = "10",
pages = "732--738",
journal = "Journal of Zhejiang University: Science A",
issn = "1673-565X",
publisher = "Zhejiang University Press",
number = "5",

}

Novel photocatalytic reactor for degradation of DDT in water and its optimization model. / Pang, Wei Hai; Gao, Nai Yun; Deng, Yang; Tang, Yu Lin.

In: Journal of Zhejiang University: Science A, Vol. 10, No. 5, 01.05.2009, p. 732-738.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Novel photocatalytic reactor for degradation of DDT in water and its optimization model

AU - Pang, Wei Hai

AU - Gao, Nai Yun

AU - Deng, Yang

AU - Tang, Yu Lin

PY - 2009/5/1

Y1 - 2009/5/1

N2 - A novel photocatalytic reactor was developed to remove (1,1-bis(4- chlorophenyl)-2,2,2-trichloroethane) (DDT) from water. In the reactor, a cenosphere was used to support TiO2 film made by means of sol-gel. Because the cenospheres were coated with TiO2, their specific gravity was slightly increased from the original 0.6∼0.8 to 0.8∼0.9, so that they were able to be suspended in water. With the mixed operation of a bubbler, the water in the reactor was in a well-fluidized state. The bottom of the reactor is a sand filter bed, which can be used to prevent the photocatalyst from being lost. A mathematical model of the reactor has been developed in the two primary influential factors: ultraviolet (UV) light intensity and photocatalyst concentration. With such a model, the reactor can be designed more reasonably.

AB - A novel photocatalytic reactor was developed to remove (1,1-bis(4- chlorophenyl)-2,2,2-trichloroethane) (DDT) from water. In the reactor, a cenosphere was used to support TiO2 film made by means of sol-gel. Because the cenospheres were coated with TiO2, their specific gravity was slightly increased from the original 0.6∼0.8 to 0.8∼0.9, so that they were able to be suspended in water. With the mixed operation of a bubbler, the water in the reactor was in a well-fluidized state. The bottom of the reactor is a sand filter bed, which can be used to prevent the photocatalyst from being lost. A mathematical model of the reactor has been developed in the two primary influential factors: ultraviolet (UV) light intensity and photocatalyst concentration. With such a model, the reactor can be designed more reasonably.

KW - Persistent organic pollutants (POPs)

KW - Photocatalytic reactor

KW - Reactor model

UR - http://www.scopus.com/inward/record.url?scp=65649112077&partnerID=8YFLogxK

U2 - 10.1631/jzus.A0820501

DO - 10.1631/jzus.A0820501

M3 - Article

VL - 10

SP - 732

EP - 738

JO - Journal of Zhejiang University: Science A

JF - Journal of Zhejiang University: Science A

SN - 1673-565X

IS - 5

ER -