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Use of lignocellulosic waste materials in the passive treatment of highly alkaline wastewater contaminated with sulfates and metals – From a laboratory study to pilot scale

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dc.abstract.enPassive wastewater treatment systems are an alternative to costly and ineffective chemical wastewater treatment methods. Lignocellulosic waste materials (LWM) are often used in passive wastewater treatment systems as a cheap and accessible source of nutrients. LWM, such as spent mushroom compost and woodchips, have been implemented for the successful management of mildly alkaline effluents, which constitute a large fraction of industrial wastewater. The objective of the study was to provide an extensive study of the parameters in four types of commonly used LWM (raw and composted sawdust, spent mushroom compost and woodchips), which can be used in the planning of a passive wastewater treatment plant. LWM were shown to remove up to 90% Zn2+ and Pb2+ from a model solution and neutralize wastewater. Moreover, the LWM were inhabited by a physiologically diverse microbial consortium containing sulfate-reducing and cellulolytic microbes, which can influence the treatment process. Another purpose of this study was to construct a pilot wastewater treatment plant based on the use of LWM and gravel and to present its ability to effectively treat extremely alkaline flotation wastewater (pH = 12) originating from a lead and zinc mine located in Montenegro. The treated wastewater had a unique, but challenging chemical composition for passive treatment, as it was heavily contaminated with sulfates (∼1200 mg/L) and lead (∼1 g/L). The removal within the developed installation reached a rate of 66%, while the treated effluent, after initial neutralization, was maintained at a pH of approximately 7. Lead and zinc concentrations after treatment were also kept at levels required by Montenegrin law for wastewater disposal.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorDrewniak, Łukasz
dc.contributor.authorUhrynowski, Witold
dc.contributor.authorRetka, Jacek
dc.contributor.authorDabrowska, Maria
dc.date.accessioned2024-01-26T11:29:03Z
dc.date.available2024-01-26T11:29:03Z
dc.date.issued2022
dc.description.financeNie dotyczy
dc.description.volume321
dc.identifier.doi10.1016/J.JENVMAN.2022.115967
dc.identifier.issn0301-4797
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/124357
dc.identifier.weblinkhttps://api.elsevier.com/content/article/PII:S0301479722015407?httpAccept=text/xml
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofJournal of Environmental Management
dc.relation.pages115967
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleUse of lignocellulosic waste materials in the passive treatment of highly alkaline wastewater contaminated with sulfates and metals – From a laboratory study to pilot scale
dc.typeJournalArticle
dspace.entity.typePublication