Glycerin as byproduct of biodiesel production, its characteristics, applications and soil use
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Abstract
represent attractive energy sources because they are made from
renewable materials. Crude Glycerol is the major byproduct
of the biodiesel industry.; about 2 million tons of glycerol
consistently reaches the market every year, consequently
several research efforts being made in order to find ways for
utilizing glycerol. The aim of this work was to carry out an upto-
date revision of the information related to the characteristics
of this glycerol and its general applications with emphasis on
its use in the soil. The characterization of crude glycerol from
biodiesel production, for different research worker, revealed
heterogeneous results on the composed of each variable
and its intervals. A total application of this glycerol that
have already studied, demand a deep consideration in each
characterization. Aspects like row materials employed in the
biodiesel process production and methods of purification
used by producers should pay particular attention. The use
of glycerol seems to be a convenient way for increasing soil
fertility, by increasing the amount of microorganisms; main
fixed nitrogen microorganism, however, issue like the glycerol
characteristic (saline contents, pH, methanol contents), and
the applications frequency most be taking in to account.
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