RESEARCHES ON THE ACID HYDROLYSIS OF THE PEAT FOR THE REALIZATION OF BIOSTIMULATORS FOR THE GROWTH OF PLANTS
Journal Title: ISB-INMA TEH AGRICULTURAL AND MECHANICAL ENGINEERING - Year 2018, Vol 0, Issue 8
Abstract
The paper presents the results of the research carried out for obtaining, through acid hydrolysis of peat, some biostimulators (humic acids, fulvic acids) for the growth of plants. The experiments were carried out in two variants: hydrolysis with sulfuric acid and hydrolysis with phosphoric acid. Parameters used during hydrolysis were: 2.5%, 5% and 10% acid concentration; autoclave temperature 100, 120 and 130 °C, autoclave pressure 1, 2 and 2.7 bar and autoclaving time 1.5 respectively 3 hours. As a measure of the hydrolysis effectiveness, the yields of the hydrolysates were determined. Parameter variation has influenced the hydrolysis process, with higher values leading to an increase of dissolution performance. For the same conditions of sample preparation and analysis, higher dissolution yields were obtained for hydrolysis with sulfuric acid than with hydrolysis with phosphoric acid.
Authors and Affiliations
N. Cioica, E. M. Nagy, C-tin Cota, Zoltan Gyorgy, Laurentiu Fechete
Keywords
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