Abstract
Wastewater discharged from electroplating industry pose a serioushazard due to their heavy metal load. The objective of this work is to evaluatethe removal of Cu(II) from acidic solution by sorption onto Weathered BasaltAndesite Products (WBAP). WBAP has been characterized and utilized forremoval of copper from aqueous solution over wide range of initial metal ionconcentration (25 mg/L to 500 mg/L), contact duration (0-8 h), sorbent dose(5-35 g/L), pH (1.0 to 6.0), and temperature (276 K to 333 K). The sorptionpattern of Cu ions onto WBAP followed Langmuir, Freundlich, and Dubinin-Kaganer-Radushkevich isotherms. The thermodynamic parameters (∆H0, ∆S0,and ∆G0) for Cu sorption onto WBAP were also determined.
Highlights
Industrialization and urbanization have led to an increase in ecological problems
The results of this study indicate that the Weathered Basalt Andesite Products (WBAP) procured from Kutch region of Gujarat (India), has the ability to remove considerable quantities of Cu+2 ions from acidic solution/wastewater
PH of the treated wastewater reached to almost neutrality, thereby saving the cost for neutralizing chemicals
Summary
Industrialization and urbanization have led to an increase in ecological problems. Water is vulnerable to contamination from discharge of wastewater by various industries[1,2]. Metals can be distinguished from other toxic pollutants, because these are non biodegradable, may undergo transformation, and can have a large environmental, public health, and economic impact[3,4]. This has led to more stringent legislation and has prompted industries to seek more effective methods of pollution control, as the maximum permissible limits are reduced[5]. The maximum permissible concentration by WHO and USPHS is 1.5 and 1.0 mg/dm[3], respectively, the maximum recommended concentration of Cu2+ for drinking water by these agencies is 1.0 mg/dm[3]
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