Improve the autosuficiencia of the debuggers increasing the potential of the biogás generated of slimes
23 April 2012
How manage of efficient form the water for the alimentary industries and the urban debuggers has been one of the challenges posed in the day. In concrete, how improve the energetic and economic balance in the urban debuggers taking out the maximum aprovechamiento of industrial currents of high organic load.
Has advanced that a debugger can arrive to obtain a 30-50 % of his power through the digestion anaerobia of the slimes. The technology of the digestion anaerobia is the process in which microorganisms decompose biodegradable material in absence of oxygen to generate, for example, methane. Besides, it has aimed that 30% more than power can reach by means of strategies of pre-treatment that pursue the disgregación cellular of the bacteria that forms the slime, facilitating the digestion anaerobia back
In this sense, have tackled two new strategies centred in the optimisation of the treatment of the slimes generated by these installations: the application of pre-treatments advanced that they do them more easily degradables biologically, and the conjoint treatment or co-digestion of the slimes with external organic waste to the debugger.
The second strategy is that said digestion do , in addition to with slimes of the debugger, with organic waste mattered of next alimentary industries, in a process of conjoint treatment designated co-digestion. Like this, it attains increase the production of biogás and improve the energetic and economic balance of the installation.
ainia Has showed his proposals in this matter such as the ozone or the cavitación oxidativa, and also has showed his intention to build a plant of oxidation supercrítica of slimes of depuración.
On the other hand, the footprint hídrica or quantity of necessary water to obtain a unit of alimentary product is another challenge that planet. In spite of being a subject very incipiente, exists already a tendency in the alimentary industry to link the consumption of water and of production of waste water by unit of production (ej. Litres of milk or kg of product cárnico) that goes to allow compare ratios of efficiency between industries.
Finally, the debate on emergent waste in the waters - derivative substances of drugs (antibiotics, analgesics, etc.), pesticidas, amongst other a lot of - has been others of the points treated in a day headed to alimentary industries, agricultural cooperatives, farms, pharmaceutical industries, cosmetic, chemical and urban debuggers. In this sense, has analysed the state and evolution of the rule, the technicians of analysis more advanced for his control.