Modifikatsiyalangan kulli loyqa chiqindilarining suvli eritmalardan og‘ir metall ionlarini adsorbsiyalash xususiyatlari
Adsorption properties of modified ash sludge waste for heavy metal ion removal from aqueous solutions
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This study investigates the sorption properties of ash sludge waste from the Takhiatash Thermal Power Plant before and after alkaline-acid activation. Modification increased the specific surface area and porosity of the material, enhancing its capacity to adsorb heavy metal ions. The adsorption of Pb²⁺, Cu²⁺, Ni²⁺, and Mn²⁺ ions was analyzed using the Langmuir and Dubinin-Radushkevich models. The highest sorption capacities were obtained for Pb²⁺ (71.94 mg/g) and Cu²⁺ (52.36 mg/g). These findings demonstrate the potential of modified ash sludge waste for removing heavy metals from wastewater.
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