298 94 307/02 Untersuchungen zum Stand der Umsetzung des ...

Teil 3 Seite V
4.5.3 Biological treatment................................................................................................... 4-32
4.5.3.1 Aerobic activation methods ............................................................................................ 4-33
4.5.3.1.1 Aerobic Digestion ............................................................................................................................................................................ 4-33
4.5.3.1.2 Aerobic treatment (AT3535005) ...................................................................................................................................................... 4-39
4.5.3.1.3 Nitrogen elimination (AT3535005) ................................................................................................................................................... 4-39
4.5.3.1.4 One step activated sluge process with pre-denitrification (AT3535005) .......................................................................................... 4-40 4.5.3.1.5 One step activated sluge process with intermidient or alternating denitrification (AT3535005) ....................................................... 4-40 4.5.3.2 Anaerobic methods ........................................................................................................ 4-46
4.5.3.2.1 Anaerobic pretreatment using down-flow or up-flow reactors .......................................................................................................... 4-46
4.5.3.2.2 Anaerobic treatment (AT3535005) .................................................................................................................................................. 4-49
4.5.4 End of Pipe Technique .............................................................................................. 4-52
4.5.4.1 Agricultural reuse of organic liquids................................................................................ 4-52
4.6 SLAUGHTERHOUSE WASTE GAS TREATMENT.......................................................................... 4-56
4.6.1 Bio-filter technique..................................................................................................... 4 -57
5 BEST AVAILABLE TECHNIQUES FOR SLAUGHTERHOUSES ......................................... 5-1
6 APPLIED PROCESSES AND TECHNIQUES IN INSTALLATIONS FOR THE DISPOSAL OR
RECYCLING OF ANIMAL CARCASSES AND ANIMAL WASTE ................................................ 6-1
6.1 ANIMAL BY-PRODUCTS ........................................................................................................... 6-1
6.1.1 Rendering .................................................................................................................... 6-1
6.1.2 Fish meal and fish oil production................................................................................. 6-3
6.1.2.1 Indirect condensation of the exhaust vapours, new.......................................................... 6 -3
6.1.2.2 Indirect cooling of the steriliser outlet, new....................................................................... 6-4
6.1.2.3 Sufficient calculated seperator in the vapourpipelines...................................................... 6-4
6.1.3 Bone processing.......................................................................................................... 6 -5
6.1.4 Blood processing......................................................................................................... 6 -7
6.1.5 Feathers ...................................................................................................................... 6-9
6.1.6 Fat melting................................................................................................................. 6-11
6.1.7 Incineration ................................................................................................................ 6 -11
6.1.8 Burning of meat and bone meal ................................................................................ 6 -11
6.1.9 Burning of tallow........................................................................................................ 6 -11
6.1.10 Landfill ................................................................................................................... 6 -11
6.1.11 Land spreading...................................................................................................... 6-11
6.1.12 Shellfish cleaning?................................................................................................. 6-11
6.1.13 Biogas production.................................................................................................. 6-11
6.1.14 Composting ........................................................................................................... 6-11
6.1.15 Use of meat and bone meal as fertiliser................................................................ 6-12
6.1.16 Ancillary site services ............................................................................................ 6-12
6.1.17 Gelatine manufacture ............................................................................................ 6-12
6.1.17.1 Bone gelatine ................................................................................................................. 6 -12
6.1.17.2 Hide gelatine .................................................................................................................. 6 -22
7 CURRENT CONSUMPTION AND EMISSION LEVELS IN INSTALLATIONS FOR THE
DISPOSAL OR RECYCLING OF ANIMAL CARCASES AND ANIMAL WASTE......................... 7-1
7.1 ANIMAL BY-PRODUCTS ........................................................................................................... 7
-1