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Activated carbon and biochar amendments decrease pore water concentrations of polycyclic aromatic hydrocarbons (pahs) in sewage sludge
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2012 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 111, 84-91 p.Article in journal (Refereed) Published
Abstract [en]

The aim of the research was to determine the influence of biochar and activated carbon (AC) on the freely dissolved concentration of polycyclic aromatic hydrocarbons (PAHs) in sewage sludge. Two different biochars (MSB and PMW) and two ACs (CP1 and BP2) were used in the present experiment. Addition of AC/biochar to sewage sludge caused significant decrease of freely dissolved PAHs concentration. Depending on the dose, the reduction of freely dissolved PAHs ranged from 56% to 95% (ACs) and from 0% to 57% (biochars). Only for the biochars was there a significant difference between short 7-d and long 30/60-d mixing time. It is concluded that both AC and biochar are effective at reducing PAH pore-water concentrations, the more expensive and non-carbon negative AC having the greatest effect.

Place, publisher, year, edition, pages
2012. Vol. 111, 84-91 p.
Keyword [en]
Biochar, Activated carbon, Polycyclic aromatic hydrocarbons, Bioavailability, Sewage sludge
National Category
Environmental Sciences
URN: urn:nbn:se:su:diva-80764DOI: 10.1016/j.biortech.2012.02.030ISI: 000302979100012OAI: diva2:557641


Available from: 2012-09-28 Created: 2012-09-27 Last updated: 2012-09-28Bibliographically approved

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Cornelissen, Gerard
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