best available technologies for manure treatment - Baltic Green Belt

06.04.2015 Views
Best Available Technologies for manure treatment baltic sea 2020 4: RESULT OF DATA ANALYSIS Table 8 continued. # Livestock Manure Treatment Technology Not project relevant Not commercially proven No leaching effect High risk for negative impacts on environment and climate No proven economic performance for general use 30: Anaerobic treatment 31 Anaerobic digestion 40: 41 41A Treatment of the fibre fraction Composting of solid livestock manure or fibre fractions of liquid livestock manure Composting of liquid livestock manure 42 Drying, possibly followed by pelletizing 43 Combustion 44 Thermal gasification 46 Composting of manure with larvae of the housefly 46 BT (biomass to liquid) 50: Treatment of the liquid fraction 51 Ultra filtration 52 Ammonia stripping 54 Reverse osmosis 55A Electrolysis 55B De-mineralisation 56 Aeration 56A Ozonizing 57 Nitrification-denitrification 58 59 Struvite (magnesium ammonium phosphate) precipitation Algae production on liquid manure substrates 32

Best Available Technologies for manure treatment baltic sea 2020 4: RESULT OF DATA ANALYSIS Table 8 continued. # Livestock Manure Treatment Technology Not project relevant Not commercially proven No leaching effect High risk for negative impacts on environment and climate No proven economic performance for general use 90: Transport and disposal 91 Truck transport 92 Pipeline transport 93 Field application 94 Constructed wetlands 95 Other disposal 100: Air cleaning 101 Air washing 110: Management 111 Official P norms 112 P index 113 Certification of persons, who transport or spread livestock manure 4.1.7: Reduced list with the most cost– efficient livestock manure treatment technologies Table 8 shows the relation between technologies and the above mentioned selection criteria. 4.1.8: Presentation and further justification of the preferred livestock manure treatment technologies The recommended livestock manure treatment technologies in relation to the objectives of the project are the following: • Separation technologies (ref. group no. 10) – the concrete principle is chosen according local prices and circumstances, both with respect to the type of mechanical separation technology, and whether it would be cost-efficient to enhance the separation with flocculation and/or flotation. The separation technologies are justified through their ability to provide the basis for an easy and cheap removal of excess P to areas with less intensive livestock productions, where the P can be used in an environmentally safe way, for instance as fertiliser for crops. Separation in a P rich fibre fraction and an N rich liquid fraction is a precondition for fertilising crops in a balanced way at farms with high livestock densities (Scenarios II to V). Mechanical separation can both be a pre-treatment and a post treatment. The technology should be a BAT for installations for the intensive rearing of pigs which have more P in 33

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