Experimental Analysis and Modeling of a Stormwater Perlite Filter

Gironás J.; Adriasola, JM; Fernández, B

Abstract

This paper presents the study of a mixed porous media composed of expanded perlite and a nonwoven needle-punched geotextile used to reduce the suspended solids load and concentration in urban runoff. Laboratory procedures were designed to quantify the suspended solids removal efficiency and variation in time of filtration rate. Different grain-size distributions of expanded perlite, diverse suspended solids concentrations, and different hydraulic and geometric conditions were tested to determine the most effective filter media. A dimensionless parameter, termed Global Performance Index (GPI), was developed to reach this objective. Measured data were also used to build a dimensional and a regression model to represent the performance of the filter media mathematically. The theory, derivation, and performance of both models are presented and compared with an existent empirical model. The dimensional model better reproduces the observations, becoming a useful tool for the design, operation, and evaluation of commercial porous media filters.

Más información

Título según WOS: Experimental Analysis and Modeling of a Stormwater Perlite Filter
Título según SCOPUS: Experimental analysis and modeling of a stormwater perlite filter
Título de la Revista: WATER ENVIRONMENT RESEARCH
Volumen: 80
Número: 6
Editorial: Wiley
Fecha de publicación: 2008
Página de inicio: 524
Página final: 539
Idioma: English
URL: http://openurl.ingenta.com/content/xref?genre=article&issn=1061-4303&volume=80&issue=6&spage=524
DOI:

10.2175/193864708X267432

Notas: ISI, SCOPUS