Encofrado perdido Eolo

5 INPUT PIPE FOR THE AIR TO BE DEPURATED FILTERING BED EOLO LEAN CONCRETE LEACHATE OUTLET AIR DISTRIBUTION CHANNEL Application example: composting Application example: biofi ltration Biofi ltration is a process for reducing the polluting substances in the air which uses biological oxidation: the contaminated air is lead through a means which contains microorganisms capable of decomposing the polluting substances using them as a nutrition source. Basically the system permits to obtain the same results of combustion, with the exception that oxidation of volatile organic mixtures with carbon dioxide is not done thermally but biologically; if the mixtures contain sulphur, nitrogen or chlorine, then the sub-products of the oxidation are mineral salts. These applications are economically more advantageous than the combustion systems, both in terms of construction and maintenance, but they require a good design to be capable of showing an optimal utilisation. With Eolo it is possible to realise a perforated fl oor thanks to the nozzles which allow the regular and uniform distribution of air. Through the air cavity which is created thanks to Eolo and its output nozzles, the distribution of air is uniform over the whole surface of the fi ltering bed. Composting is a technique which controls, accelerates and improves the natural process of any organic substance because of the effect of the microbial fl ora which is naturally present in the environment. High concentration in humus, in active microbial fl ora and in micro-elements make the compost a product which is suitable to various agronomic uses, from gardening to open fi eld farming. Composting is basically composed of two phases: • Bio-oxidation, which consists of the hygienisation of the mass: this is the active phase (also known as high rate, active composting time), characterised by intense processes of degradation of the organic components which are easily degradable. Eolo permits the uniform and homogeneous distribution of air inside the whole fermenting biomass which leads to a reduction of the process time and it ensures an optimal level of stabilisation. • Maturation, during which the product stabilises itself and it becomes rich of humic molecules: this is the curing phase, characterised by transformation processes of the organic substance with the formation of humic substances. The use of Eolo is necessary for the realisation of a perforated fl oor which permits the air insuffl ation to make this process more effi cient. GREEN MOIST MIXING GRINDING Process for the recovery of waste organic material Biofi ltration 6 www.baygar.com