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Information × Registration Number 0221U103269, 0118U006866 , R & D reports Title Research of technologies of reception of fertilizers and processes of utilization of industrial waste. popup.stage_title Head Voloshyn Mykola D, Registration Date 17-02-2021 Organization Dniprovsk State Technical University popup.description2 Scientific relationships have been established between the initial content of nitrates and chlorides in liquid waste and the doses of conventional and acid-activated zeolite, which make it possible to bring the content of nitrates and chlorides in purified liquid waste to the regulatory requirements of Ukraine. The influence of the dose of adsorbents in the range of 1.5-2 g / dm3 and the duration of the adsorption process on the residual concentration of phenols, nitrates and thiocyanates in coke-chemical liquid waste was revealed; for the processing of liquid waste, an adsorption plant with a fixed bed of adsorbent was created. A mathematical model of pH change in the process of obtaining biogas from an aqueous organic substrate treated with ultrasound has been developed, which will allow predicting and optimizing the production process by adjusting the pH level, temperature of the fermentation process and particle size distribution. Further research will make it possible to mathematically calculate the biogas yield without long-term research. A new technology for processing organic waste, based on the use of ultrasound in the process of fermentation of the substrate, increases the yield of biogas. The studies carried out confirmed the fact that the biogas yield increased by 4 times when the organic substrate was treated with ultrasound than without the use of ultrasonic treatment. On the basis of the collected data, a technological scheme for the processing of calcium-containing sludge and household food waste into a complex fertilizer has been developed. The effect of the duration of stirring phosphogypsum suspensions on the removal of the saturation of the liquid phase with respect to calcium sulfate and filtration indicators has been established. The process of chemical processing of lignin-cellulose wastes (walnut shells and apricot kernels) with obtaining effective biosorbents has been investigated. Product Description popup.authors Yelatontsev Dmytro O Ivanchenko Anna V. Belianska Olexandra R Laricheva Lyudmyla P. Chernenko Yana M popup.nrat_date 2021-02-17 Close