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Teil 3 Seite VII
8.1.9 Rubishes...................................................................................................................... 8-9
8.1.9.1 Recirculation of excess sludge into the raw material (only if there is no animal- food
produktion) (Kurztechniken C.) .......................................................................................................... 8 -9
8.1.9.2 Recirculation of solid residues from pre-treatment into the raw material (only if there is no
animal- food production) (Kurztechniken C.)...................................................................................... 8 -9
8.1.9.3 Seperation of metals (Kurztechniken C.).......................................................................... 8-9
8.1.9.4 Prevention of mixing of by-products and wastes of different origin (AT3535005).......... 8 -10
8.1.10 Management.......................................................................................................... 8-10
8.1.10.1 Keeping sufficient production capacity (Kurztechniken C.)............................................. 8-10
8.1.10.2 Regularly conduct laboratory analysis of the effluent composition and maintain records
(AT3535005).................................................................................................................................... 8-11
8.1.10.3 The use of spill and overflow prevention devices in storage tanks (AT3535005) ........... 8-11
8.1.10.4 Minimisation of COD by cold and short storage of raw material and Blood (AT3535005) .....
....................................................................................................................................... 8 -12
8.1.10.5 Use of isolated transport containers (AT3535005) ......................................................... 8-12
8.1.10.6 Installation of a trap for floating matter (AT3535005) ..................................................... 8-12
8.1.10.7 Installation of level controls (AT3535005) ..................................................................... 8-13
8.1.10.8 Dosing of nutrients, acid and alkalinity (AT3535005) ..................................................... 8-13
8.1.10.9 Maintenance of negative pressure in storage handling and processing areas (AT3535005)
....................................................................................................................................... 8 -14
8.1.10.10 Keep processing areas under negative pressure (AT3535005) ................................. 8 -14
8.1.10.11 Treatment of the skins (AT3535005).......................................................................... 8-15
8.1.10.12 Regularly conduct laboratory analysis of the effluent composition and maintain records
(AT3535005) ................................................................................................................................... 8-15
8.1.10.13 The use of spill and overflow prevention devices in storage tanks (AT3535005)....... 8-16
8.1.10.14 Automated prevention of overfilling and overflowing vessels (AT3535005) .............. 8-16
8.2 ANIMAL BY-PRODUCTS ......................................................................................................... 8-17
8.2.1 Production Processes................................................................................................ 8-17
8.2.1.1 Sterilisation..................................................................................................................... 8-17
8.2.1.2 Post sterilisation of MBM (Kurztechniken C.) ................................................................. 8 -19
8.2.1.3 Drying............................................................................................................................. 8-20
8.2.1.3.1 Description of the methods.............................................................................................................................................................. 8-20
8.2.1.4 Periodical working "Mixing dryer" (Kurztechniken C.)..................................................... 8-21
8.2.1.4.1 Dry transport of by-products and waste (AT3535005) ..................................................................................................................... 8-21 8.2.1.4.2 Drying of blood (AT3535005)........................................................................................................................................................... 8-22
8.2.1.4.3 Seperate and simultaneous drying (AT3535005) ............................................................................................................................ 8-22 8.2.1.5 Centrifugation ................................................................................................................. 8 -23
8.2.1.5.1 Centrifugation of the blood (AT3535005)......................................................................................................................................... 8-23
8.2.1.6 Hydrolisation................................................................................................................... 8 -24
8.2.1.6.1 Hydrolysation under pressure (AT3535005).................................................................................................................................... 8-24
8.2.1.6.2 High pressure thermohydrolysis (AT3535005) ................................................................................................................................ 8-24
8.2.2 Odour......................................................................................................................... 8 -25
8.2.3 Wastewater Treatment .............................................................................................. 8 -26
8.2.3.1 Mechanical methods ...................................................................................................... 8-26
8.2.3.2 Recycling of all process waters to the raw material (Kurztechniken C.) .........................
8-27