ESPECTROSCOPIA APLICADA AO MONITORAMENTO DAS MUDANÇAS ESTRUTURAIS DE COMPOSTOS ORGÂNICOS OBTIDOS NA COMPOSTAGEM DO LODO DE ETE

Abstract

This dissertation aims to study the composting process of sewage sludge from a food industry with two different substrates, pruning and sawing and characterize the compounds obtained using conventional methods and spectroscopic techniques. It was created two piles, one with sawdust and sludge (SL) and another with sludge and pruning (LP) in a ratio of 1:3 by volume. It was followed for 210 days the composting process with periodic measurements of temperature, pH, moisture, elemental analysis, seed germination, metal content and spectroscopic analysis of UV / Vis and IR. THE CONCLUSION IS that the compounds obtained in LS and LP are stabilized and matured, but with different times of composting.