Adsorptive features of poly(glycidyl methacrylate-co-hydroxyethyl methacrylate): effect of porogen formulation on heavy metal ion adsorption

Heavy metal ions and organic dyes removal from water by cellulose modified with maleic anhydride

“…There are many studies on the removal of toxic metals from aqueous solution by various methods such as ion exchange, neutralization, reverse osmosis, precipitation, solvent extraction and adsorption. Compared to other methods, adsorption method could be an economically choice because it is easy handling, and high efficiency in removing heavy ions especially at medium to low ion concentrations from wastewaters [1,2]. Mercury, as one of the toxic heavy metals, is extensively used in chlor-alkali, electrical, paints, pharmaceutical industry, paper and pulp, and it causes hazard to environmental safety because of its extreme toxicity toward the aquatic life and humans [3][4][5].…”

Removal of Contaminants from Industrial Lean Amine Solvent Using Polyacrylamide Hydrogels Optimized by Response Surface Methodology

“…The hydrogels were produced in small beads using micropipettes and kept in an oven to polymerize for 4 hours (Yıldız and Yılmaz 2005). The beads produced were washed with distilled water to remove any unreacted monomers and dried in air and vacuum oven, and stored for future use.…”

“…Advantages of using hydrogel adsorbents are easy loading, capturing of ions with simple chemicals, reusability and the possibility of continuous operation (Kasgoz et al 2003). Besides high swelling, wettability also facilitates adsorption because the swelling of the three-dimensional networks provides high specific surface area and more exposed functional groups that are easily approachable for adsorption (Trakulsujaritchok et al 2011).…”

“…This technique has been applied successfully for the optimization of coagulation-flocculation process to remove heavy-metal ions (Helen et al 2009), palm oil mill effluent (Ahmad et al 2005), etc. However, reports applying RSM to optimize the process parameters for hydrogel synthesis with desired properties specific to a particular application are very limited (Zheng et al 2011).…”

Sorption of heavy metal ions onto carboxylate chitosan derivatives—A mini-review

“…Numerous methods such as filtration, electrodialysis, ion exchange adsorption and precipitation are established for the isolation and elimination of metal ions from aquatic systems (Bhattacharyya and Gupta, 2008;Mahvi, 2008;Pillai et al, 2013;Zhou et al, 2014), but the kind of method to employ depends on the nature of the heavy metal ions. Nevertheless, the adsorption method is applied widely because the operation of the method is convenient and can remove both inorganic and organic pollutant (Ahmed and Theydan, 2012;Bhatnagar and Sillanpää, 2009;Chen et al, 2013;Trakulsujaritchok et al, 2011;Yagub et al, 2014). The origin of some adsorbents such as activated carbons (Hu et al, 2003), zeolites (Bosso and Enzweiler, 2002;Inglezakis et al, 2003), clays (Abollino et al, 2003), silica beads (Ghoul et al, 2003), low-cost adsorbents-industrial byproducts (Gupta et al, 2003;Lopez et al, 2003;Reddad et al, 2003), biomass (Loukidou et al, 2003;Vasudevan et al, 2003) and polymeric materials-organic polymeric resins (Atia et al, 2003;Zhang et al, 2003), macroporous hypercrosslinked polymers (Azanova and Hradil, 1999) have been classified as mineral, organic or biological (Crini, 2005).…”