Next Article in Journal
Land Use and Land Cover Changes and Their Effect on the Flow Regime in the Upstream Dong Nai River Basin, Vietnam
Previous Article in Journal
Effect of a Lateral Jet on the Turbulent Flow Characteristics of an Open Channel Flow with Rigid Vegetation
Previous Article in Special Issue
Clogging Impacts on Distribution Pipe Delivery of Street Runoff to an Infiltration Bed
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Water 2018, 10(9), 1205; https://doi.org/10.3390/w10091205

The Influence of Geotextile Type and Position in a Porous Asphalt Pavement System on Pb (II) Removal from Stormwater

1
College of Civil Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
2
China Design Group Co., LTD, 9 Ziyun Avenue, Nanjing 210014, China
3
Department of Mechanical Engineering, University of Victoria, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada
*
Author to whom correspondence should be addressed.
Received: 9 August 2018 / Revised: 1 September 2018 / Accepted: 4 September 2018 / Published: 7 September 2018
(This article belongs to the Special Issue Design of Urban Water Drainage Systems)
Full-Text   |   PDF [2030 KB, uploaded 7 September 2018]   |  

Abstract

Porous asphalt (PA) pavement systems with and without a geotextile layer were investigated in laboratory experiments to determine the impacts of the geotextile layer on the processes leading to lead ion (Pb2+) removal from stormwater runoff. Two types of geotextile membranes that were placed separately at upper and lower levels within the PA systems were tested in an artificial rainfall experiment while using synthetic rainwater. The effect of storage capacity within the system on Pb2+ removal was also investigated. Results indicated that the use of a geotextile layer resulted in a longer delay to the onset of effluent. The non-woven geotextile membrane that was placed below the reservoir course improved the Pb2+ removal rate by 20% over the removal efficiency of the system while using a woven geotextile placed just below the surface but before the choker course. Pb2+ ions were reduced by over 98% in the effluent after being held for 24 h in reservoir storage. Results suggest that temporary storage of stormwater in the reservoir course of a PA system is essential to improving Pb2+ ion removal capability. View Full-Text
Keywords: porous asphalt pavement system; stormwater; stormwater runoff; heavy metals removal; geotextile membrane porous asphalt pavement system; stormwater; stormwater runoff; heavy metals removal; geotextile membrane
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhao, Y.; Zhou, S.; Zhao, C.; Valeo, C. The Influence of Geotextile Type and Position in a Porous Asphalt Pavement System on Pb (II) Removal from Stormwater. Water 2018, 10, 1205.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top