There are few examples of collective manure remedy in France. That is why a listing of collective remedy devices or strategies has been performed on a Eu scale.
The collective devices in operation and the remedy strategies at the Eu scale have been inventoried via nation and via procedure (section separation, remedy of liquids and solids, and many others.) consistent with the amount of effluents handled: on-farm, in medium measurement devices (< 50,000 t/yr) or wide measurement devices (> 50,000 t/yr).
In France, the yearly remedy of a number of tens of hundreds of lots of effluent is regarded as to be large-scale. Given those volumes and the common measurement of French farms, figuring out that simplest surplus effluents are handled, remedy devices of greater than 50,000 t/yr are collective, versus particular person farm devices.
Maximum processes are tailored to collective processing, whilst the opposite isn’t conceivable for causes of financial system of scale and complexity. Collective devices are generally few in quantity, however once in a while dominant in the case of quantity handled in positive international locations, as with regards to section separation, anaerobic digestion, and liquid section remedy in the Netherlands.
The implementation of enormous devices varies a great deal amongst Eu international locations
Some international locations are characterised via a prime share of centralized devices in the case of the amount of effluents handled: that is the case in the Netherlands for section separation and liquid remedy via membrane filtration and nitrification/denitrification. This may be the case in Belgium for liquid section remedy via nitrification/denitrification and dehydration of solids and in Spain for section separation, one way this is basically particular person on a Eu scale.
For those 3 international locations, the Netherlands, Spain, and Belgium, the percentage of enormous methane digesters is upper than in different Eu international locations. The huge-scale building of solids dehydration in Belgium and section separation in the Netherlands is expounded to their want to export solids, particularly phosphorus, to 3rd international locations.
Spain is characterised via all kinds of centralized remedy processes: use of additions and pretreatments (prime force, prime temperature), use of coagulant-flocculants to make stronger the efficiency of section separation, necessarily via decanter-centrifuges for those wide installations, thermal dehydration, pelletizing and combustion for solids remedy, membrane filtration, and evapo-concentration for the remedy of the liquid section.
Italy is characterised via a robust building of section separation based totally virtually completely on a person style. The similar applies to anaerobic digestion in Germany, except for resorption ways.
Different eventualities are characterised via really extensive variety: that is the case with composting in Spain, the place particular person and centralized devices coexist. The similar occurs with anaerobic digestion in Denmark, the place there have been successive levels of public incentives for particular person and centralized fashions.
In Italy, anaerobic digestion may be smartly evolved with a mixture of processes.
The diversities within the building of centralized devices and within the remedy processes selected may also be defined via more than one elements: nationwide transpositions of Eu directives, the character of native rules, animal manufacturing density, the state of verbal exchange routes, social acceptability, and many others.
Learn about carried out via IFIP, Itavi, Chamber of Agriculture of Brittany, FR Cuma Ouest, Idele throughout the framework of the GESTE undertaking financed via ADEME.
Excerpt from the brochure: Filières collectives de gestion et de traitement des déjections animales et des digestats (to be printed via the tip of 2024).