Oilfield produced water is the largest volume waste stream associated with oil and gas production. Increasingly stringent environmental regulations require extensive treatment of produced water before disposal. Currently, treatment and disposal of oilfield wastewater alone costs the global oil and gas industry more than USD 40 billion annually. Apart from the high CAPEX investment required to setup an efficient treatment system, the main OPEX is associated with the cost of maintenance, energy and chemicals. Ghana is blessed with abundant biomass resources, clay deposits and other raw materials that can be used as feedstock to produce commercial quantities of sustainable oilfield materials. However, currently, almost all the major materials, chemicals and agents used in oilfield wastewater treatment in Ghana are imported. The SMOWT project will design, test, standardize and commercialize the production of at least two sustainable materials for oilfield wastewater treatment in Ghana.