Paper Title:
A Rainwater Harvesting Technology by Roof Coating Using TiO2
  Abstract

Rainwater utilization has great potentials for recovering hydrological cycles, for buffering extreme run-off situations in the watercourses, and for reducing the costs for water supply in urban area. However, little information is available on the water qualities and runoff properties of collected rainwater, which is critical for efficient design and maintenance strategies of rainwater harvesting facilities. In this study, characteristics of rainwater collected in a rainwater harvesting system were examined in terms of pollutant concentrations. Based on these results, TiO2 photocatalysts were applied on the roof surface as a novel coating material to improve the quality of collected rainwater. The analysis of rainwater samples shows that the contamination by turbidity, conductivity, and color occurs during the catchment process, which may result in troubles for further use. The roof coating technique developed in this study appeared to be effective in increasing the wash-off of pollutants and improving the water quality in roof runoff because of its increased hydrophililicy as well as photocatalytic reactivity. Further research is required on trace pollutants such as endocrine disruptors to estimate and minimize health risk in rainwater harvesting.

  Info
Periodical
Materials Science Forum (Volumes 486-487)
Edited by
Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee
Pages
17-20
DOI
10.4028/www.scientific.net/MSF.486-487.17
Citation
R. H. Kim, S. H. Lee, J. H. Lee, Y. M. Kim, "A Rainwater Harvesting Technology by Roof Coating Using TiO2", Materials Science Forum, Vols. 486-487, pp. 17-20, 2005
Online since
June 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jung Soo Mun, Ree Ho Kim, Moo Young Han
G. Others
Abstract:Recently the interest on rainwater harvesting has been increasing and the installation of rainwater harvesting system (RWHS) has been spread....
451
Authors: Ji Soo Lee, Won Hwa Hong, Byeung Hun Son, Min Kyu Jung
Chapter 3: Agricultural and Urban Ecological Environment
Abstract:This study aimed to assess the efficiency in collecting rainwater by utilizing the surface of walls in building structures, as part of the...
547
Authors: Mohammad Shakir Nasif, Rozanna Roslan
Chapter 5: Water Resources Engineering
Abstract:This study aims to investigate the effect of using different roofing materials in office building on rainwater harvesting system annual...
593