%0 Journal Article
%T An Effective Method for Adsorption of Pb<sup>2 </sup>, Cd<sup>2 </sup>, and Cu<sup>2 </sup> from Wastewater by Using NaX<sub>Zeolite</sub>-Derived from Coal Gangue
%A Hikmatullah Ahmadi
%A Yun Duan
%A Shakeel Hussain
%A Sadat Sayed Hafiz
%A Habibullah Sharifi
%A Sayed Sanaullah Habibi
%J Open Access Library Journal
%V 9
%N 8
%P 1-12
%@ 2333-9721
%D 2022
%I Open Access Library
%R 10.4236/oalib.1109102
%X A study was conducted to investigate the behavior and mechanics of NaX<sub>zeolite</sub> on the adsorption of (Pb<sup>2 </sup>, Cd<sup>2 </sup>, and Cu<sup>2 </sup>) from simulated wastewater. NaX<sub>zeolite</sub> was synthesized from coal gangue by an Alkali-based hydrothermal process. A number of techniques have been employed to analyze the production of adsorbents, including X-ray diffraction (XRD), scanning electron microscopy with X-ray energy analysis (SEM-EDX), Fourier transform infrared (FT-IR), X-ray fluorescent (XRF), and Brunauer-Emmett-Teller (BET). The effects of adsorbent dosage, pH, time, temperature, and initial concentration of NaX<sub>zeolite</sub> on the adsorption of Pb<sup>2 </sup>, Cd<sup>2 </sup>, and Cu<sup>2 </sup> were investigated. To investigate the mechanisms and capacities of experimental adsorption, Langmuir, Freundlich, and Temkin isotherms were employed. In certain conditions, the Langmuir isotherm showed that the adsorbent layer had an adsorption capacity of 88.3, 87.9 and 88.5 mg/g of Pb<sup>2 </sup>, Cu<sup>2 </sup> and Cd<sup>2 </sup>, with linear regression coefficients (R2 > 0.979) for all three metals. Bioavailability, Optimal doses of 0.5 g/L NaX<sub>zeolite</sub> at pH of 5 & 6 in condition 25&deg;C in 90 minutes removed >99% for all three metals.
%K Coal Gangue
%K Adsorption of Pb2
%K Cu2  and Cd2
%K NaXzeolite
%K Langmuir
%K Freundlich and Temkin Isotherms
%U http://www.oalib.com/paper/6778811