| Abstract [eng] |
The Master’s Final Thesis has analysed the theory and technology of liquid fertilizer production, experimental studies of dolomite degradation by nitric acid, neutralisation of the received solution by ammonia water and standardisation with urea have been performed. There have been developed liquid nitrogen, calcium, magnesium fertilizers, to which some peat extract has been added. This way, liquid nitrogen, calcium, magnesium fertilizers with bioactive additives have been developed; and technological recommendations have been provided for their production. The literature review has considered the purpose of liquid fertilizers, methods of the production of these liquid fertilizers. The literature review has considered the purpose of liquid fertilizers, methods of their production, use, and statistics of needs. The investigative part provides the substances and materials used, physical, chemical and instrumental methods of analysis. This part also includes the experimental results, which were obtained after performing the experiments and analysing the influence of ammonia water and urea, which were added to the degradation solution, and additives of peat extracts on the physical and chemical features of liquid fertilizers. The engineering part provides the recommended principal technological scheme of liquid nitrogen, calcium, magnesium fertilizers with peat extract, and its description. The end of the Final Thesis contains a review of employees’ safety and health, conclusions, a list of used references. . |
