Following work experience and technical cooperations in the early nineties with the academic world of the then Soviet Union, the engineering of COIND became aware of electrochemical processes used for the stabilization of animal wastes. The vertevano studies on intensive production technology humus, made from organic raw materials, such as discharges of pig farms, poultry and urban sewage waste.
The process adopted consisted in obtaining electrochemical simple molecular structures derived from the lysis of long-chain organic compounds (natural polymers, such as lignin, albumin, polysaccharides, etc.) and subsequent recombination in ranked compounds of iron, calcium and other metals in the form ionic. It should be borne in mind that in the USSR there was no specific rules about the spreading of slurry on the ground that impose purification or stabilization of the same; the COIND has developed the use of electrochemical technology adapted to the local climatic conditions, which inhibited from spreading on the ground for a period of seven / eight months a year, when the ground was frozen.
The process of electro-composting takes place in two phases:
In 2006 COIND in partnership with RIVOIRA, has developed a pilot plant fully renovated with regard to the reactor, and some electromechanical components, then tested the droppings of a poultry farm. The purpose was to investigate the elettrocompostaggio process of various animal faeces and in general on all those waste or organic sludge, which currently have no other target, if the storage in landfills or the spreading of the field with the stringent restrictions imposed by legislation for vulnerable zones.
In order to be able to conduct an experiment that encompassed both electrocoagulation, both the waters of result, the pilot plant was equipped with a biological purification section which allows to evaluate the processes of reduction of the polluting load so as to fall within the parameters discharge of the effluent into surface waters. The collaboration with RIVOIRA has made it possible to employ oxygen in the various sections of the plant so as to evaluate the reaction kinetics accelerated by the use of an energetic oxidant instead of air.
In the light of the latest experiments carried out, COIND believes that the pilot plant constitutes an extremely useful tool for testing the behavior of different effluents or sludges from biological digestion / purification processes.
The results obtained open several routes for the management of waste resulting from the production processes agronomic and renewable energy such as: