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Scanning Electron Microscopy (SEM) technique was applied for the investigation of the resin surface in pesticide adsorption. Static adsorption experiments were performed for the removal of alachlor, trifluralin, prometryn and amitrole from their aqueous solution on two polymeric resins (divinylbenzene – polystyrene copolymer XAD-4 and polyacrylic ester XAD-7). The obtained SEM images revealed the...
The adsorption of herbicides alachlor, amitrole, trifluralin and prometryn on porous polymeric adsorbents has been studied. Two adsorbent resins were investigated, the highly hydrophobic Amberlite XAD-4 (polystyrene–divinylbenzene copolymer) and the functionalized more hydrophilic XAD-7 (nonionic aliphatic acrylic polymer). Equilibrium adsorption experiments using buffered aqueous solutions were conducted...
We need specific and competent adsorbents to remove arsenic and bring it down to permissible levels in drinking water. Therefore, industrial byproducts are extensively applied to produce large amounts of natural adsorbents. Similarly, managing optimum arsenic adsorption with palm oil clinker sand (POCS) is possible through a careful statistical planning of adsorption variables. We plan and perform...
We need specific and competent adsorbents to remove arsenic and bring it down to permissible levels in drinking water. Therefore, industrial byproducts are extensively applied to produce large amounts of natural adsorbents. Similarly, managing optimum arsenic adsorption with palm oil clinker sand (POCS) is possible through a careful statistical planning of adsorption variables. We plan and perform...
A series of doped and un-doped magnetic adsorbents CuCexFe2-xO4 (x = 0.0–0.5) for fluoride were prepared with the micro-emulsion method. Fluoride adsorption was optimized for solution pH, temperature, contact time, and initial concentration and was monitored via normal phase ion chromatography (IC). The effect of concomitant anions was also explored to perform and simulate competitive fluoride adsorption...
The effect of ionic strength on the adsorption of alachlor, trifluralin, and prometryn on Amberlite XAD-4 polymeric resin is studied. Static adsorption experiments are carried out at pH 3–6.5 and ionic strength 0.01–2M at 20C. By increasing the ionic strength, the adsorption of herbicides can be significantly increased. The electrolyte addition affects both the
effectiveness and efficiency of adsorption,...
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