Retraction Note: Sustainable pretreatment and adsorption of chemical oxygen demand from car wash wastewater using Noug sawdust activated carbon

G Getasew Yirdaw A Abraham Teym W Wolde Melese Ayele M Mengesha Genet A Ahmed Fentaw Ahmed A Assefa Andargie Kassa T Tilahun Degu Tsega C Chalachew Abiyu Ayalew G Getaneh Atikilt Yemata T Tesfaneh Shimels R Rahel Mulatie Anteneh A Abathun Temesgen G Gashaw Melkie Bayeh A Almaw Genet Yeshiwas H Habitamu Mekonen B Berhanu Abebaw Mekonnen M Meron Asmamaw Alemayehu S Sintayehu Simie Tsega Z Zeamanuel Anteneh Yigzaw A Amare Genetu Ejigu W Wondimnew Desalegn Addis B Birhanemaskal Malkamu K Kalaab Esubalew Sharew D Daniel Adane C Chalachew Yenew