The castorbean tree (Ricinus Commnis L.) it is a resistant plant to dries and to the diverse factors between them the climatic one sufficiently sensible. It was objectified to verify and to quantify the isolated and ...

The technology of the biodigestion has proven to be one of the most efficient way for the treatment of the organic byproducts. The biomass, after subjected to the biodigestor, besides producing biogas, has a considerable ...

Domestic sewage contains microorganisms that associate to solid particles to form sewage sludge. The sludge also contains nutrients, which favours its use as organic fertilizer, after alkaline treatment. The purpose ...

The manioc leafs constitute a residue generated in the harvest of manioc roots with optimum nutritional characteristics. Currently, the interest by vegetal protein occurs from its natural abundance that in agronomic ...

The intensive system of animal production proportion the creation of great amounts of wastes. The application of the rude manure in the soil can cause environmental problems, as smell, pollution of surface ...

The objective of that work was to know the characteristics abiotic of the passage of the river São Francisco Verdadeiro that it will allow the characterization of the analyzed segments. Each area presents a differentiated ...

ABSTRACT: In the perspective of considering new ecosystems management and conservation forms, it turns necessary a detailed study of space distribution, as well as of landscape conditions temporal ...

The concentration of total and volatile solids of the wastewater from two intensive pig productions in growth and termination phases was evaluated. The ST varied from 1.7 to 3.9% and SV from 85.7 to 84.8% of ST. The ...

In order to evaluate the concentration and removal of organic matter in domestic wastewater, an experiment was developed using the overland flow method for different application rates: 0.24, 0.36 and 0.48 m 3 h-1 ...

The objective of this work was to evaluate the acting of two upflow anaerobic sludge blanket reactors (UASB) in pilot scale with volumes of 908 L and 188 L, installed in series, fed with swine wastewater with medium ...