Zastosowanie proszku celulozowego do adsorpcji metali ciężkich z roztworów wodnych

• Autorzy: Marta Biegańska

Warianty tytułu

Utilization of Cellulose Powder for Heavy Metal Adsorption in Aqueous Solutions

• Języki publikacji: PL

Abstrakty

Celem pracy jest zbadanie adsorpcji jonów miedzi Cu2+ i ołowiu Pb2+ w roztworach wodnych o różnym stężeniu wyjściowym metali oraz określenie wpływu kwasu hydroksyetylodietylenodiaminoetanolosulfonowego (HEPES) na adsorpcję. Dodatek HEPES stosowany był do utrzymywania pożądanego pH roztworów podczas adsorpcji. Jest to kwas, który wykorzystuje się w wielu biologicznych i chemicznych badaniach in vitro. (fragment tekstu)

EN

Biopolymers are a group of compounds present in the environment, containing among others lignin, cellulose, starch or pectin. Adsorption of heavy metal ions Cu(II), Pb(II) on cellulose powder in aqueous solutions and effect of N-2-hydroxyethylpiperazine-N'- 2-ethanesulphonic acid (HEPES) on the adsorption were investigated. Reactions of the solutions were adjusted to pH 4,0 using 0,1 M NaOH; 0,1 M HC1 and 0,1 M HC1; 0,1 M HEPES, and initial metal ion concentration was 0,2 mM. Cellulose powder could adsorb effectively the investigated metal ions. Uptakes of Cu(II) and Pb(II) were repeatedly higher in solutions 0,1 M NaOH - 0,1 M HC1 than 0,1 M HC1 - 0,1 M HEPES. The investigated buffer probably shows surfactant activity and is capable to bind copper and lead . Shaking time did not have any significant effect on adsorption, which allows to make an assumption that this is a physical adsorption. Results obtained in the course of research make it possible to put forward a hypothesis that natural materials like wicker bark, containing in its tissues among other things cellulose and lignin, can be potentially used to adsorb heavy metals. This, however, needs further investigation. (original abstract)

Słowa kluczowe

PL

Towaroznawstwo; Zanieczyszczenie środowiska; Metale ciężkie

EN

Commodity science; Environmental pollution; Heavy metals

• Czasopismo: Studia Doktorantów / Uniwersytet Ekonomiczny w Poznaniu
• Rocznik: 2010
• Numer: nr 9
• Strony: 159--164

Twórcy

autor

Marta Biegańska

Bibliografia

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