Abstract
The Ceylon Journal of Science is a peer-reviewed journal published quarterly by the University of Peradeniya, Sri Lanka in March, June, September and December. It is aimed at publishing high quality research articles on topics related to different disciplines in Science. The journal accepts original research articles, book reviews, reviews and mini-reviews, short communications, opinions, research notes, and commentaries and notes. The journal strictly adheres to publication ethics as emphasized by the Committee on Publication Ethics (COPE). The Journal has its own website.The Ceylon Journal of Science is indexed in Sri Lanka Journals Online (SLJOL), Directory of Open Access Journals (DOAJ), Google Scholar and Zoological Records. According to the Google Scholar; H5-Index: 12H5-Median: 15According to the Exaly (1970 – 2021); Impact Factor: 0.6 (top 19%)Extended IF: 0.6 (top 19%) H-Index: 8 (top 28%)Citations/paper: 1.42
Highlights
Water is one of the essential components for the survival of all living beings
The adsorption isotherm studies were performed in these clay mineral systems using different isotherm models and the results show that the Langmuir adsorption isotherm gives a better fit for Congo red (CR), Fe(III) and Cd(II) ions adsorption by the two types of raw clays, whereas CR adsorption by acidactivated clays shows a better fit to Freundlich isotherm
The adsorption efficiencies of these clays increased with contact time and initial concentration of the adsorbates
Summary
Water is one of the essential components for the survival of all living beings. aquatic pollution is a huge environmental issue causing serious problems to living beings. Water is polluted in various ways by a wide variety of substances, such as toxic chemicals, sediments, plant nutrients, pathogenic microorganisms, organic waste, heat, petroleum (oil), and radioactive substances (Laws, 2018, Schweitzer et al, 2018). There are several methods such as membrane separation, electrocoagulation, reverse osmosis, flocculation, and adsorption have been used to remove heavy metals and organic materials from the aqueous medium (Ricart et al, 2008; Toor et al, 2018; Han et al, 2019) Among these methods, the adsorption technique has been extensively used by many researchers to remove the organic and inorganic pollutants, since it has significant advantages over other techniques, such as low cost, ease of operation, and high effectiveness as well. A few works have been reported to remove the organic and inorganic contaminants using activated clay from the water (Sennour et al, 2009; Toor et al, 2018; Taher et al, 2019; Ayub et al, 2020; Khalfa et al, 2021)
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