Evaluation of appropriate system for reclaimed wastewater reuse in each area of Tokyo using GIS-based water balance model

Citation
T. Aramaki et al., Evaluation of appropriate system for reclaimed wastewater reuse in each area of Tokyo using GIS-based water balance model, WATER SCI T, 43(5), 2001, pp. 301-308
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
WATER SCIENCE AND TECHNOLOGY
ISSN journal
0273-1223 → ACNP
Volume
43
Issue
5
Year of publication
2001
Pages
301 - 308
Database
ISI
SICI code
0273-1223(2001)43:5<301:EOASFR>2.0.ZU;2-K
Abstract
The appropriate type of reclaimed wastewater reuse system in each area of T okyo was evaluated from the aspect of economic efficiency, using a GIS-base d water balances model. The following four reclaimed wastewater reuse syste ms and conventional waterworks and sewerage system were evaluated; "Rain wa ter storage and use system", "Onsite wastewater treatment and reuse system" , "Sewage treatment and reuse at an intermediate point on the sewer pipe" a nd "Treated water supply system in sewage treatment plant". In the case tha t we install them to office and residential buildings, the supplied volume by reclaimed wastewater reuse systems is 693 thousands m(3)/d, this corresp onds to 15% of total water demand in the area. Furthermore, the effects of the following scenarios brought about by technological innovation in water treatment were investigated; the case that flush water in toilet and wastew ater from kitchen are also available as source in a "onsite wastewater trea tment and reuse system" and the case that reclaimed water is used for laund ering in residential buildings. When reclaimed water is used for laundering in residential buildings, the supplied volume by these systems increases t o 814 thousand m(3)/d in the case that these systems are installed to offic e and residential buildings.