Chemisorption Characteristics of 2,4-Dichlorophenol in Aqueous Solution onto Different Adsorbents

Removal of Cr(VI) from aqueous solution by adsorption onto low cost non-conventional adsorbents

Adsorption behavior of chromium, Cr(VI) from wastewater has been investigated using clarified sludge (a steel plant waste material), rice husk ash and sawdust as non-conventional adsorbents. The studies were carried out at room temperature (30C) following batch adsorption technique in a reciprocating shaker. Factors affecting the adsorption characteristics such as agitation time, initial metal ...

Chemisorption of Arsine on Activated, Impregnated Carbon Adsorbents

This work discusses an ongoing investigation to characterize microporous adsorbents that affect the removal of arsine from air. One aspect of this work was to develop a test system for generating, transport and detection of arsine gas appropriate for adsorbent breakthrough measurements at part-per-billion (ppb) concentrations. Preliminary adsorption data is provided showing the effect of arsine...

Adsorption of Lead from Aqueous Solution onto Untreated Orange Barks

Waste materials with no further treatment such as orange barks from commercial oranges may act as adsorbent for the removal of Pb. Batch kinetic and equilibrium experiments were conducted to study the effects of contact time, initial pH, adsorbent dose and initial concentration of lead. The results show that the equilibrium was achieved less than 30 min of contact time. Three adsorption isother...

Biomimetic Adsorbents: Enrichment of Trace Amounts of Organic Contaminants (TAOCs) in Aqueous Solution

Chemisorption of Perfluorooctanoic Acid on Powdered Activated Carbon Initiated by Persulfate in Aqueous Solution.

Perfluorooctanoic acid (PFOA) is a perfluorocarboxylic acid that is difficult to treat by most conventional methods. As a result, it is often removed from solution by adsorption on powdered activated carbon (PAC), followed by incineration of the spent carbon. To provide a new approach for treatment, PFOA was exposed to sulfate radicals (SO4(-•)) produced by thermolysis of persulfate (S2O8(2-)) ...