Cuentas Medioambientales: Cuenta de los Residuos National results Quantity of waste treated by categories CRV. Incineration with recuperation of energy and underground incineration. Units: thousands of tonnes ;1 - Incineration with energy recovery (R1);2 - Underground incineration (D10); 01, 02, 03 Chemical waste;67.131;23.342; 01, 02, 03 excl. 01.3 Chemical waste excluding used oils P;155.607;54.106; 01.3 Used oils P;4.549;0.079; 05 Medical and biological waste;8.937;3.107; 05 Medical and biological waste P;23.185;0.401; 07.7 Waste containing PCBs P;3.356;0.058; 10.1 Domestic waste and similar;1,975.032;0.000; 10.2 Mixed and undifferentiated materials;68.782;23.916; 10.2 Mixed and undifferentiated materials P;0.405;0.007; 10.3 Waste separation;0.000;0.000; 10.3 Waste separation P;14.450;0.250; 11 Common sludge;739.465;257.118; 07, 08, 09, 09, 12, 13 Other wastes;440.000;153.000; 07, 08, 09, 09, 12, 13 Other wastes P;111.499;38.769; Total non-hazardous;3,299.061;460.376; Total hazardous P;313.051;93.670; Total;3,612.112;554.046; Notes: 1) CRV: European Waste Classification P: Hazardous waste R1: Main use as fuel or as another means of producing energy. E.g.: incineration of fuels and oils D10: áWaste incineration - No recuperation of energy, such as household waste, hazardous, medical or animal waste. Underground incineration Source: National Statistics Institute