COMPARAÇÃO DE BIOMASSA VEGETAL E ANIMAL EM BIOARGAMASSA

The use of microorganisms in liquid medium for the biocementation process, favors the continuity of bacterial growth. However, if it takes too long to use, it stops growing rapidly, leading to cell death. This study compared two forms of biomass production, capable of storing microorganisms in a latent state, maintaining viability for later use. Here we described the preparation of biomasses, made with organic materials and bacteria Sporosarcina pasteurii (CCT 0538 ATCC 1185). Animal (poultry manure) and vegetable (vetch - Vicia villosa Roth) biomasses were tested. Both biomasses maintained the viability of the microorganisms, and the vegetable was more efficient, presenting greater bacterial growth after revitalization. For testing, reference specimens were molded (without biomass) and also with each one of them, and after 28 days tested for traction and compression. The tensile strength showed an increase of 41.2% (animal biomass) and 44.7% (plant biomass). In the compressive strength, the increase was 37.8% (animal biomass) and 38.8% (vegetable biomass), compared to the reference mortar (without the addition of a microorganism)