best available technologies for manure treatment - Baltic Green Belt

Best Available Technologies for manure treatment baltic sea 2020
Best Available Technologies for manure treatment baltic sea 2020
ANNEX E: TABLES WITH SHORT DESPRIPTION OF LIVESTOCK MANURE TREATMENT TECHNOLOGIES
Best Available Techniques for manure treatment - for intensive rearing of pigs in Baltic Sea Region EU Member States Technical Report "Best Practice Manure Handling, Phase 2"
Ref No. 51 Ultra filtration
Brief description Description of the effect on leaching (positive or negative) of N and P
Ultra filtration is made on raw slurry or the liquid separation fraction. It is a type
of pre-treatment for the reverse osmosis treatment, both technologies being part
of a high tech manure treatment facility where the liquid part is purified up to (or
near to) clean water. The ultra filtration process will remove suspended solids as
well as bacteria and virus, while small dissolved molecules passes the filtration
and can be removed by reverse osmosis, where the pore size of the membranes is
smaller.
As for the other separation technologies.
The membranes can clog and must be in such cases be cleaned. Membrane must
typically be replaced every second year to ensure optimal function.
The ultra filtration process produce a liquid fraction, which contains the
suspended solids and other, and a purified fraction to further purify in a reverse
osmosis process.
Research
Pilot
Practice
Innovation stage
Investment price,
Basic Variable
Operational
costs,
per tonnes
No data No data 1.0 to 5.5
per kg saved N
or P leaching
Complexity of
implementation
Major references
Condition for
leaching
reduction
effect
Massea et al., 2007 Scenarios II - V
Certainty of
information
Prices Low
Effect on
leaching
High
Depends on the
situation of the
individual farm.
High – will be part of a
high-tech manure
treatment plant.
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