Tropical stormwater nutrient degradation using nano-TiO2 in photocatalytic reactor detention pond

Saeed Rad, Supiah Shamsudin, Mohd. Raihan Taha, Shamsuddin Shahid

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The photo-degradation of nutrients in stormwater in photocatalytic reactor wet detention pond using nano titanium dioxide (TiO2) in concrete was investigated in a scale model as a new stormwater treatment method. Degradation of phosphate and nitrate in the presence of nano-TiO2 under natural ultra violet (UV) from tropical sunlight was monitored for 3 weeks compared with normal ponds. Two types of cement, including ordinary Portland and white cement mixed with TiO2 nano powder, were used as a thin cover to surround the body of the pond. Experiments with and without the catalyst were carried out for comparison and control. Average Anatase diameter of 25 nm and Rutile 100 nm nano particles were applied at three different mixtures of 3, 10 and 30% weight. The amounts of algae available orthophosphate and nitrate, which cause eutrophication in the ponds, were measured during the tests. Results revealed that the utilization of 3% up to 30% weight nano-TiO2 can improve stormwater outflow quality by up to 25% after 48 h and 57% after 3 weeks compared with the control sample in normal conditions with average nutrient (phosphate and nitrate) removal of 4% after 48 h and 10% after 3 weeks.

Original languageEnglish
Pages (from-to)405-413
Number of pages9
JournalWater Science and Technology
Volume73
Issue number2
DOIs
Publication statusPublished - 1 Jan 2016

Fingerprint

Ponds
stormwater
Nutrients
pond
Degradation
Nitrates
degradation
nutrient
nitrate
Titanium dioxide
Cements
cement
Phosphates
phosphate
Eutrophication
anatase
Photodegradation
orthophosphate
photodegradation
Algae

Keywords

  • Concrete
  • Detention pond
  • Nano-TiO
  • Photocatalytic reactor
  • Stormwater nutrient
  • UV

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Tropical stormwater nutrient degradation using nano-TiO2 in photocatalytic reactor detention pond. / Rad, Saeed; Shamsudin, Supiah; Taha, Mohd. Raihan; Shahid, Shamsuddin.

In: Water Science and Technology, Vol. 73, No. 2, 01.01.2016, p. 405-413.

Research output: Contribution to journalArticle

Rad, Saeed ; Shamsudin, Supiah ; Taha, Mohd. Raihan ; Shahid, Shamsuddin. / Tropical stormwater nutrient degradation using nano-TiO2 in photocatalytic reactor detention pond. In: Water Science and Technology. 2016 ; Vol. 73, No. 2. pp. 405-413.
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