Within the policy of the Environmental Research Center at the University of Technology to open up to ministries and state departments, M.R. was dispatched. Chemists Ahmed Alwan Nassif, affiliated with our center, went to Karbala Governorate for the purpose of bringing models from the Al-Harr sewage treatment plant for the purpose of evaluating the treatment of oils and greases within the research tagged (Evaluating oils and greases in wastewater before they enter treatment plants and treating them, and using the slag resulting from treatment to improve construction properties)