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Registration Number

0222U004634, 0120U105812 , R & D reports

Title

Research on technologies of processing of waste, clearing of water environments and reception of fertilizers on the basis of natural and technogenic raw material base

Head

Ivanchenko Anna , д.т.н.

Registration Date

22-09-2022

Organization

Dniprovsk State Technical University

Description

 The process of sorption removal of phenols and rhodanides from liquid waste with different doses of glauconite to describe the mathematical model of the adsorption process is investigated. The kinetic patterns of the process of removal of phenols with wastewater with glauconite in the amount of 2-8 g/dm3 in combination with a cationic floculant of 5 ml/dm3 in the range of time 20-120 min, which makes it possible to predict the optimal dose of adsorbent, the impact of time on sorption on sorption. The process and reduce the content of polluting agents to environmentally friendly indicators. A mathematical description of the process of phenolic wastewater treatment using glauconite is provided. Quantitative indicators of the output of useful products (mineral fertilizers and binders) from the accepted method of phosphogypsum conversion. The main advantages of the technology of removal of rare earth elements (REE) from phosphogypsum are presented. New dependences of the specific output of products, their chemical composition and the pH of the environment were obtained during alkaline conversion of phosphogypsum. The optimal technological parameters of the process of carbonate conversion of phosphogypsum, which provide maximum extraction of valuable components (rare earth elements, chalk and sulfur). The kinetic patterns of the process of nitrate acid treatment of phosphogypsum were established, depending on origin; the dependence of the content of rare earth elements in samples on the concentration of nitric acid and the treatment temperature was revealed; the use of nitric acid to produce rare earth elements from phosphogypsum is scientifically substantiated. Kinetic patterns of processing of phosphogypsum using ammonium nitrate into a complex fertilizer were established; Dependences of the content of sulfate, phosphate, nitrate-anions and cations Ca2+ in the initial samples and products of the reaction from the temperature of phosphogypsum processing and the ratio o

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popup.authors

Yelatontsev Dmytro O
Belianska Olexandra R
Voloshyn Mykola D
Chernenko Yana M