Retraction: Removal of nitrate from groundwater by column using pumice as adsorbent as an effort for water resources conservation (IOP Conf. Ser.: Mater. Sci. Eng. 846 012059)

Abstract

This article has been retracted by IOP Publishing following the authors notifying us that the article contains verbatim overlap with other works by different authors without citation [1]. IOP Publishing has investigated in line with COPE guidelines and found this to be true. As such, IOP Publishing is retracting this work. The authors have agreed with this retraction. [1] Ai Phing Lim, Ahmad Zaharin Aris, Continuous fixed-bed column study and adsorption modeling: Removal of cadmium (II) and lead (II) ions in aqueous solution by dead calcareous skeletons, Biochemical Engineering Journal, Volume 87, 2014, Pages 50-61, ISSN 1369-703X, https://doi.org/10.1016/j.bej.2014.03.019 Retraction published: 01 September 2023