Compostagem de resíduos sólidos contendo gordura e celulose de indústria de produtos cárneos : valoração de resíduos a sub-produtos.

Abstract

In the meat industries, so much the rich residues in fatnesses, as the involucre of cellulose utilized during the processing of sausages, healthy frequently very bulky and they represent a grave problem as regards destination sustainable environmently. The present work consists of the study from the basics facts generation, as well as from the technical feasibility of the reutilization of native residues pollutants of the meat industries. The residues solids utilized in this research they were: cellulose residue; greasy residue; biological slime and rumen bovine. The approach of composting utilized went the biological mixed one (aerobic and anaerobic). The experimentation involved 03 phases with 02 heaps in arranged, each triplicate in area covered, isolated of him soil for floor of reinforced concrete. The initial values from the relation carbon/nitrogen (C/N) of the heaps aimed around 30/1. The returning of the heaps done of hand with a daily frequency and to each three days went. The operational parameters evaluated (temperature, humidity and frequency of returning) presented satisfactory values, as well as to C/N end of the heaps situated itself near to 10/1. The results obtained in the experimentation indicate that the method windrow in the form of hill with return to each three days containing a formulation of 64% of residue of cellulose, 18% of greasy residue and 18 of biological slime provided a medium time of 45 days for the stabilization of the compost. the results show the effectiveness of the method of composting as according to residues management alternative, adequate to the beginnings of clean technologies and sustainability, since healthy valorization to sub-product with practice in the agriculture.