The research had as objective to design a system of interceptor of solid and grease o primary treatment system of residual waters to control the excess of concentration of the parameters established in the Supreme Decret N° 021-2009-HOUSING, that approves The Maximum Admissible Values of discharges of non-domestic sewage into the sanitary sewer system of the restaurants in Huánuco city. Likewise, through this design, the compensatory or additional payment of non-domestic Users for such excesses was avoided, as indicated in Title Three and Fourth of Board Resolution No. 044-2012- SUNASS –CD. In this sense, this study aimed to grant non-domestic users a novel design of solids and grease interceptor in the face of the pollution problem of the Huallaga River as a receiving body of wastewater discharges of our city and thus reduce loads contaminants of our river. Methodologically, it was ...