Abstract
In the present study, a more potential and economical method is described to reutilize a waste adsorbent as the waste Cu2+-loaded poly(AAc/AM/SH) SAHs were not undergone any regeneration process and directly applied to adsorb phosphate ion from another waste solution. The SAHs poly(AAc-AM-SH) was anionic in nature, thus show higher affinity toward Cu2+ ions, but it hardly adsorb anions due to its characteristics of negative charge existing on the polymeric surface. The adsorption of Cu2+ makes it positively charged moiety and so it is being capable of anions/anionic dye adsorption. The various factors affecting the phosphate adsorption including pH, contact time, initial concentration of the phosphate were systematically investigated. The maximum phosphate adsorption was obtained 87.62 mg/g. The adsorption data fitted the Langmuir adsorption isotherm. The desorption studies showed that the regeneration of the poly(AAc/AM/SH)–Cu SAHs adsorbent can be easily achieved. The results confirmed that poly (AAc/AM/SH) superabsorbent hydrogels loaded with Cu2+ ion can be applied as effective solid adsorbent for the removal of phosphate ions from waste water and aqueous effluents.
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Singh, T., Singhal, R. (2018). Efficient and Economical Application of a Spent Waste Adsorbent Cu2+-Loaded Poly (AAc-AM-SH) Superabsorbent Hydrogels by Reusing It for Adsorption of Phosphate Ion. In: Singh, V., Yadav, S., Yadava, R. (eds) Water Quality Management. Water Science and Technology Library, vol 79. Springer, Singapore. https://doi.org/10.1007/978-981-10-5795-3_22
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DOI: https://doi.org/10.1007/978-981-10-5795-3_22
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