?url_ver=Z39.88-2004&rft_id=10.1080%2F19443994.2015.1129506&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ezechi&rft.au=Ezechi%2C+E.H.&rft.aufirst=E.H.&rft.title=Desalination+and+Water+Treatment&rft.date=2016&rft.issue=47&rft.volume=57&rft.issn=19443994&rft.atitle=Application+of+response+surface+methodology+for+the+optimization+of+hexavalent+chromium+removal+using+a+new+low-cost+adsorbent&rft.pages=22507-22518&rft.genre=article