Adsorption Behaviors for Sequestration of Anionic Surfactant (Linear Alkyl Benzene Sulphonic Acid, LABSA) from Aqueous Solution on the Solid Product (CHAR) Obtained from the Waste Tyre Rubber Via Chemical Devulcanization
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Surfactants or surface active agents have a wide range of applications in industries, agriculture, textile, detergent, food, cosmetics and the drug or pharmaceutical (Cuzzola, Bernini and Salvadori, 2002). Adsorption of anionic surfactants onto a surface generates charge, anionic surfactants will give a negatively charged surface (Malvern Instruments Inc., 2006). Linear Alkylbenzene Sulphonates (LABSA), is an anionic surfactant, are highly water soluble surface active agents widely used in synthetic laundry detergent formulation and household cleaning products. LABSA frequently present in domestic and civil wastewater. LABSA is a mixture of closely related isomers and homologues, each containing an aromatic ring sulphonated at the para position and attached to a linear alkyl chain (HERA, 2013).The aim of the present study is to investigate the adsorption behaviours for sequestration of linear alkyl benzene sulphonic acid (LABSA) from aqueous solution on the solid product (char) obtained from the waste tyre rubber via chemical devulcanization.