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