Reuse of materials from a Sustainable Drainage System device: Health, Safety and Environment assessment for an end-of-life Pervious Pavement Structure

Fredrick Mbanaso, Sue Charlesworth, Steve Coupe, Alan Newman, Ernest O. Nnadi

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1 Citation (Scopus)
2 Downloads (Pure)

Abstract

Pervious pavement systems can have a life span of about 20 years but, at end-of life, it becomes necessary to evaluate the state of the infrastructure to determine whether they pose a health and safety risk to workers during dismantling, and also determine potential reuse of the waste material generated. In this paper, we report of an investigation conducted to evaluate whether Pervious pavement systems are hazardous to human health at end-of-life and also to assess the mobility of the stormwater pollutants trapped in the system as a measure of their potential release to receiving systems such as water-bodies and groundwater systems. After decommissioning, the pervious pavement structure was sampled for analysis including Gas Chromatography, inductively coupled plasma spectroscopy and leachate analysis. Results show that carcinogenic risks were significantly below the regulatory limit of 1 x 10-6 while, the hazard quotients and cumulative hazard indices were also below regulatory value of 1, based on United States Environmental Protection Agency standards. Furthermore, mean concentrations of benzene, toluene, ethylbenzene and xylene were significantly less than the UK soil guideline values. The results of the leachate analysis show that the metals of concern, Pb, Zn, Cr, Ni, Cd and Cu were all below the threshold for reuse applications such as irrigation purposes as they were all below the regulatory limits such as Food and Agriculture Organization and, United States Environmental Protection Agency standards. Finally, the evaluation of potential reuse and recycling purposes indicate that wastes generated from the dismantling of the PPS are within limits for recycling as aggregates for other civil engineering projects as per European Union standards. This has potential to enhance UK's drive to achieve the target of 70% level of construction & demolition waste recovery for reuse and recycling by the year 2020 as per European Union Water Framework Directive.
Original languageEnglish
Pages (from-to)1759-1770
Number of pages12
JournalScience of the Total Environment
Volume650
Issue number2
Early online date26 Sep 2018
DOIs
Publication statusPublished - 10 Feb 2019

Fingerprint

health and safety
pavement
Pavements
Drainage
Recycling
recycling
Environmental Protection Agency
Health
leachate
Hazards
hazard
Xylenes
Demolition
decommissioning
Ethylbenzene
BTEX
Water
Toluene
Inductively coupled plasma
civil engineering

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Science of the Total Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Science of the Total Environment,vol 650,2, 2019 DOI: 10.1016/j.scitotenv.2018.09.224

© 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Environmental Health
  • Gas Chromatography (GC) with Flame-Ionization Detection (GC/FID)
  • inductively coupled plasma (ICP) spectroscopy
  • Occupational Health
  • Pervious Pavement System
  • Sustainability, Waste Management
  • Sustainable Drainage System

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Cite this

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abstract = "Pervious pavement systems can have a life span of about 20 years but, at end-of life, it becomes necessary to evaluate the state of the infrastructure to determine whether they pose a health and safety risk to workers during dismantling, and also determine potential reuse of the waste material generated. In this paper, we report of an investigation conducted to evaluate whether Pervious pavement systems are hazardous to human health at end-of-life and also to assess the mobility of the stormwater pollutants trapped in the system as a measure of their potential release to receiving systems such as water-bodies and groundwater systems. After decommissioning, the pervious pavement structure was sampled for analysis including Gas Chromatography, inductively coupled plasma spectroscopy and leachate analysis. Results show that carcinogenic risks were significantly below the regulatory limit of 1 x 10-6 while, the hazard quotients and cumulative hazard indices were also below regulatory value of 1, based on United States Environmental Protection Agency standards. Furthermore, mean concentrations of benzene, toluene, ethylbenzene and xylene were significantly less than the UK soil guideline values. The results of the leachate analysis show that the metals of concern, Pb, Zn, Cr, Ni, Cd and Cu were all below the threshold for reuse applications such as irrigation purposes as they were all below the regulatory limits such as Food and Agriculture Organization and, United States Environmental Protection Agency standards. Finally, the evaluation of potential reuse and recycling purposes indicate that wastes generated from the dismantling of the PPS are within limits for recycling as aggregates for other civil engineering projects as per European Union standards. This has potential to enhance UK's drive to achieve the target of 70{\%} level of construction & demolition waste recovery for reuse and recycling by the year 2020 as per European Union Water Framework Directive.",
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AU - Charlesworth, Sue

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AU - Newman, Alan

AU - Nnadi, Ernest O.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Science of the Total Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Science of the Total Environment,vol 650,2, 2019 DOI: 10.1016/j.scitotenv.2018.09.224 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

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