THE PROBLEM AND POSSIBILITIES OF STOCKBREEDING MANURES AND EXCREMENTS: MODULAR ALTERNATIVES FOR APPRECIATION, REUSE AND DISPOSAL
Abstract:The problem of stockbreeding manures and excrements in general and of pig farms in particular is a question of surpluses. It is thus a complex and in many senses interdisciplinary problem, since any question of surpluses means relating diverse problems with different origins, from bothersome smells to the emission of gases accentuating the greenhouse effect, not forgetting the waste of energy involved in the overall power balance of the inter-connected industrial processes. At the same time this means a challenge, a great possibility for providing solutions (alternatives, processes and technologies) which, tying in with the need to foster sustainable development, help to create a new technological culture able to use stockbreeding waste with appreciation, recycling and usage criteria, from obtaining renewable power to the more efficient recycling of nutrients valuable for agricultural production.
The technological process is based on the integral appreciation of the resulting fractions and not only on purifying effluents, which means the coexistence of a double closed cycle, on one hand harmless for the environment and on the other economically feasible.
Putting all these research and innovation endeavours into practice is the final objective of this work, started in October 1993 and conceived as shown in Figure 1.
Document Type: Research Article
Publication date: January 1, 2000
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