The generation of wastewater within industrial processes, means that industries seek an alternative treatment so that their discharges comply with current regulations. That is why this research work was carried out, where the stages of the paper production process and the characteristics that contribute to the production of industrial wastewater were identified. Then, the paper production process was characterized in 4 sampling points (TK Circulation M1, TK Gray Circulation, TK Circulation Top and TK Voltrax), analyzing for each point variables such as pH, Conductivity, Temperature, Turbidity and Total Suspended Solids. Subsequently, the units that make up the wastewater treatment plant (WWTP) were identified and a historical compilation of the wastebasket treatment process under study was carried out, analyzing its compliance with Resolution 0631 of 2015. Finally, an optimization of the primary treatment in the jug equipment was performed. Analyzing coagulant dose ranges (Aluminum Polychloride-PAC) between 20 mg / L and 320 mg / L and flocculant dose (Polyacrylamide) from 100 mg / L to 3100 mg / L, in an input SST range of 1195 mg / L - 2676 mg / L. The results for the optimal dose for PAC are 40 mg / L and for polyacrylamide 1500 mg / L. It was concluded that these doses allowed a removal in terms of OSH that managed to comply with Resolution 0631 of 2015