Adsorption of basic dye onto palm kernel shell activated carbon: sorption equilibrium and kinetics studies

Abstract

Adsorbents prepared from palm kernel shell, an agricultural waste product, were used to remove a dye, Basic Blue 9, from an aqueous solution in batch mode at a constant temperature of 28°C. The sorption kinetics and equilibrium of basic dye onto palm kernel shell activated carbon (PKSAC) were studied. The isotherm data were well described by the Redlich-Peterson isotherm model, with constants obtained from non-linear regression. The sorption kinetics are well described by the pseudo-second-order kinetic model. These studies suggested that PKSAC could be used as low-cost alternatives in wastewater treatment for dye removal.

Adsorption of Mercuric Ions from Aqueous Solution using Activated Carbon and Modified Activated Carbon Prepared from Dried Papyrus Plant

“…∆Sº and ∆Hº values were obtained from the intercept and slope of linear relation.Values of ∆Sº, ∆Hº, and ∆Gº were obtained from slope and intercept, correspondingly, of the curve of lnKd against 1/T, as shown in figure (13). ∆Sº, ∆Hº, and ∆Gº were attained for the Hg (II) adsorption on OSAC, OPAC, PAC and DP are summarized in table (7). The change of enthalpy is related to the chemical connection; consequently, the positive enthalpy value of adsorption ∆Hº attained in the present study approves the presence of adsorption endothermic process to be likely because of chemisorption and strong interactions between the efficient groups on the surface of the adsorbent and Hg (II) ions.…”

“…Activated carbonisone of the important ways which widely used in pollutant removal such as mercury from drinking water. Several studies about the preparation of activated carbon from plants and agricultural residues seeds of have been conducted including coconut shells, groundnut shell, bamboo dust [6], palm kernel shell [7], coir pith [8], wheat husk [9] and rice husk [10]. However there are no reports of obtaining active carbon from papyrus plant by chemical and physical activation methods.…”

Study of Effect of Concentration on Adsorption of Methyl Red Dye using different Adsorbents

“…Cooper (1993) summarized the technologies used until then in order to remove or at least reduce colour, mentioning that some them have certain efficiency; Coagulation and/or flocculation, membrane technologies, chemical oxidation technologies, biochemical oxidation and adsorbent utilization. Among various treatment technologies, adsorption onto activated carbon has proven to be one of the most effective and reliable physicochemical treatment methodologies [7,8]. The adsorption process has an edge over the other treatment methods due to its sludge free operation, and complete removal of dyes even from dilute solutions.…”

Moringa oleifera: A COST EFFECTIVE COAGULANT FOR DYE DEGRADATION

“…Dye effluent leaving the textile industry has been considered as a pollutant owing to its chemical composition and capacity. 1 The textile effluent could be subjected to dye removal treatment to prevent the living organisms from toxicity effects. Discarding of dye sewage with essential treatment is a great task.…”