Preprint Article Version 1 This version is not peer-reviewed

Enhancing the Adsorption of Lead (II) by Bentonite Enriched with pH-adjusted Meranti Sawdust

Version 1 : Received: 31 October 2018 / Approved: 1 November 2018 / Online: 1 November 2018 (18:18:19 CET)

A peer-reviewed article of this Preprint also exists.

Mohajeri, P.; Smith, C.; Selamat, M.R.; Abdul Aziz, H. Enhancing the Adsorption of Lead (II) by Bentonite Enriched with pH-Adjusted Meranti Sawdust. Water 2018, 10, 1875. Mohajeri, P.; Smith, C.; Selamat, M.R.; Abdul Aziz, H. Enhancing the Adsorption of Lead (II) by Bentonite Enriched with pH-Adjusted Meranti Sawdust. Water 2018, 10, 1875.

Journal reference: Water 2018, 10, 1875
DOI: 10.3390/w10121875

Abstract

In recent years, the need for safe and modern composite barrier for the prevention of groundwater contamination and the provision of Geo-environmental protection has been studied together with the need of designing low cost and effective liner for isolating landfill contents from the environment. In this study, various mix designs involving two natural adsorbents, the Na-Bentonite and the pH-adjusted sawdust were prepared for a series of Geo-environmental experiments to be carried out to determine the adsorption capacity, buffering capacity, pH changes, and COD changes among others, in the presence of Pb(NO3)2 contaminant concentrations. Generally, the results showed an increase in adsorption capacity in the acidic segment of the treatment. An increase of 58% of the adsorption efficiency of the Na-Bentonite in adsorbing the contaminant at the highest concentration was the most important achievement of the system while in the acidic segment.

Subject Areas

Bentonite; Sawdust; Chemically treatment; Heavy metal; Adsorption capacity

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