Open AccessAdsorption and desorption of zinc and copper in acid mine drainage onto synthesized zeolite from coal fly ash
Author(s) -
Amalia Ekaputri Hidayat,
Setyo Sarwanto Moersidik,
Sandyanto Adityosulindro
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1811/1/012045
Subject(s) - zeolite , adsorption , desorption , zinc , copper , fly ash , acid mine drainage , chemistry , inorganic chemistry , metal ions in aqueous solution , manganese , metal , nuclear chemistry , catalysis , environmental chemistry , organic chemistry
Synthetic zeolite is considered a more effective adsorbent due to its high purity and high removal efficiency. On the other hand, acid mine drainage contains various metal ions, such as zinc, copper, iron, and manganese which are toxic for the ecosystem in a certain concentration. One of the solutions to remove these metal ions is through adsorption. Therefore, the study of adsorption and desorption of zinc and copper onto synthetic zeolite was conducted. The synthetic zeolite was synthesized from coal fly ash and the acid mine drainage was prepared artificially. The adsorption experiment was carried out using a batch system. NaCl, H 2 SO 4 , and HNO 3 were used as desorption agent. The adsorption studies revealed that the removal efficiency of both Zn 2+ and Cu 2+ onto the studied adsorbent decrease with the increase of adsorbate concentration. While the adsorption selectivity for multi-system synthetic AMD solution by the studied adsorbent were found to the order of Fe 2+ > Cu 2+ > Zn 2+ > Mn 2+ .After being reused three times, the synthetic zeolite shows a decrease in for Zn 2+ and Cu 2+ adsorption efficiency of about 10%. Furthermore, the desorption study shows the ineffective use of NaCl, H 2 SO 4 , and HNO 3 as desorption agents in this study.