Removal of Dissolved Trivalent Chromium Ions from Contaminated Wastewater using Locally Available Raw Scrap Iron-Aluminum Waste. alkej [Internet]. 2019 Mar. 1 [cited 2024 May 2];15(1):134-43. Available from: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/428