Change search
ReferencesLink to record
Permanent link

Direct link
Treatment of heavily contaminated storm water from an industrial site area by filtration through an adsorbent barrier with pine bark (Pinus Silvestris), polonite and active carbon in a comparison study
Mälardalen University, School of Sustainable Development of Society and Technology. (ACWA/FUTURE ENERGY)ORCID iD: 0000-0003-3311-9465
Mälardalen University, School of Business, Society and Engineering. (MERO)ORCID iD: 0000-0002-9563-9688
Structor Miljöteknik. (ACWA/FUTURE ENERGY)
Show others and affiliations
2011 (English)In: Water and Industry, IWA Specialist conference, 1-5 May 2011, 2011Conference paper (Refereed)
Abstract [en]

This study aims to evaluate a simple and robust filtration method for separation of of heavy metals from storm water. The storm water, collected at a metals manufacturing site, is heavily contaminated with heavy metals, A first analysis of a water sample collected from the site in mid Sweden showed exceptionally high concentrations of especially Zn, which was present in concentrations exceeding 200 mgL-1. The basic idea is to filter the water as it flows out of the industry area through a passive barrier in the storm water well pipeline. The advantages with using pine bark are many,  it is, for instance, a waste material that can be recycled into a new life cycle step and it has been shown to be a promising materia in previous studies l for capturing  heavy metal contaminants . Pine bark was in this study compared to two other materials; polonite and the conventional adsorbent active carbon. The forestry by-product pine bark (Pinus silvestris) consists of approximately 85-90 % dried and granulated pine bark and 10-15 % wood fibres. Polonite is a manufactured product originating from the cretaceous rock opoka. A laboratory  experiment was  set up, where  the storm water from the industrial site was filtered through all three filter materials in a pilot-scale model of the proposed installation. The filter cartridge model could be filled with approximately 2.2 L filter material. 3 L of the storm water was poured through the material through natural percolation, approximately 0.35 Lmin-1. Treated and untreated storm water was analyzed for heavy metals, suspended solids, electric conductivity and pH. Active carbon showed the highest level of adsorption, with nearly 100 % of all metals adsorbing to the filter. However, significant concentrations of As was desorbed from the material into the filtered water. Pine bark retained 90 % of the metals, even the Zn which was present in high concentrations. Polonite could only adsorb 70 % of the heavy metals and released Cr from the material.

Place, publisher, year, edition, pages
National Category
Environmental Sciences
URN: urn:nbn:se:mdh:diva-11798OAI: diva2:396181
Water and Industry, IWA Specialist conference, 1-5 May 2011, Valladolid, Spain
Available from: 2013-02-27 Created: 2011-02-09 Last updated: 2013-12-04Bibliographically approved

Open Access in DiVA

fulltext(198 kB)247 downloads
File information
File name FULLTEXT01.pdfFile size 198 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Nehrenheim, EmmaRibé, VeronicaOdlare, Monica
By organisation
School of Sustainable Development of Society and TechnologySchool of Business, Society and Engineering
Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 247 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 227 hits
ReferencesLink to record
Permanent link

Direct link