_1582628180 1582628180 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 12 25 2019 2 04 10.24200/amecj.v2.i04 http://journal.amecj.com/index.php/AMECJ-01/issue/view/10 Ahmad Ghozatlu Atefeh Enayatollahi In this study, the effects of nanostructure absorbent of ZnO in graphene bed for a wastewater treatment unit in weaving are evaluated. Initial analysis was undertaken to identify the existing metals and their concentration in the prepared wastewater. It was seen that the diluted solution consisted of the ambivalence ions of lead, copper, nickel, cadmium, and silver with the concentration of 73/31, 81/19, 54/6, 98/1and 76/1 milligram per liter, respectively. Trivalent chrome, with a concentration of 98/1 milligram per liter was also observed. Therefore, by adding various amounts of absorbent (20, 30 and 50 milligrams) to the wastewater sample and adjusting the PH to 5 and 6, each metal was separately absorbed.   12 26 2019 27 38 10.24200/amecj.v2.i04.88 http://journal.amecj.com/index.php/AMECJ-01/article/view/88 http://journal.amecj.com/index.php/AMECJ-01/article/download/88/151 http://journal.amecj.com/index.php/AMECJ-01/article/download/88/151 http://journal.amecj.com/index.php/AMECJ-01/article/download/88/152