Rainwater Harvesting System for Contiunous Water Supply to the Regions with High Seasonal Rainfall Variations

Kwangsik Jung, Taeseop Lee, Byeong Gyu Choi, Seungkwan Hong

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Generally, rainwater harvesting has been less acceptable as a stable water resource for the countries with large disparities in seasonal rainfall including Korea. In this study, rainwater harvesting system suitable for South Korea was investigated systematically. The simulation method utilizing daily rainfall data collected for the last 10 years was developed to determine the critical size of rainwater tank which could supply harvested rainwater continuously. The estimation of rainwater tank size was further simplified by developing a correlation of volume to area fractions. Extensive simulation was performed to evaluate the feasibility of rainwater harvesting for seven major cities in South Korea. The resulting rainwater tank was too large to be economically feasible, compared to daily harvested rainwater used. Thus, rainwater harvesting system was integrated with alternative water resources such as wastewater reclamation by membrane bioreactor (MBR) to enhance the applicability of rainwater harvesting without compromising continuous water supply.

Original languageEnglish
Pages (from-to)961-972
Number of pages12
JournalWater Resources Management
Volume29
Issue number3
DOIs
Publication statusPublished - 2014

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rainwater
Water supply
Rain
water supply
rainfall
Water resources
Wastewater reclamation
Bioreactors
water resource
Membranes
bioreactor
simulation
membrane
wastewater

Keywords

  • Alternative water resources
  • Blending
  • Rainwater harvesting
  • Rainwater tank size
  • Wastewater reuse

ASJC Scopus subject areas

  • Water Science and Technology
  • Civil and Structural Engineering

Cite this

Rainwater Harvesting System for Contiunous Water Supply to the Regions with High Seasonal Rainfall Variations. / Jung, Kwangsik; Lee, Taeseop; Choi, Byeong Gyu; Hong, Seungkwan.

In: Water Resources Management, Vol. 29, No. 3, 2014, p. 961-972.

Research output: Contribution to journalArticle

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