Soloviy K. Combined biological - adsorption methods of surface and wastewater treatment

Українська версія

Thesis for the degree of Doctor of Philosophy (PhD)

State registration number

0821U100346

Applicant for

Specialization

  • 101 - Екологія

25-02-2021

Specialized Academic Board

ДФ 35.052.038

Lviv Polytechnic National University

Essay

The analysis on experience of Ukraine and other countries around the world concerning wastewater treatment with the use of natural sorbents has been carried out. Prospects for the synthesis of activated carbon from plant raw materials and the effectiveness of this sorbent in environmental technologies have been considered. The analysis on the existing information on surface and wastewater treatment with the use of hydrobionts and the critical analysis of biotechnologies on the use of their resource potential has been carried out. The characteristics of research materials have been analyzed. In particular, the characteristics of natural sorbents used in research (bentonites of the Dashukiv deposit) are given. The characteristics of raw materials of plant origin for the synthesis of activated carbon and its potential reserves are considered. Classification and analysis of hydrobionts that can be used in the technology of open biological conveyor have been conducted. Information on research methods and techniques is given. The technique, technological scheme and technological approaches for implementation of the activated carbon from vegetable raw materials synthesis process are described. The method of establishing the elemental composition of hydrobionts using an X-ray fluorescence analyzer and the research methodology for chromium ions adsorption on bentonites in static and dynamic modes are presented. The innovative technology of production and application of magnetically sensitive coal sorbents on the basis of natural raw material is observed. Studies have confirmed both the high level of adsorption capacity of the obtained adsorbents and the required level of magnetization, which enables the use of magnetic localization of the spent sorbent after the implementation of purification technology. Implementation peculiarities of combined biological-adsorption methods of water environments treatment are considered. Key words: hydrobionts, open biological conveyor, adsorbents, bentonites, plant raw material, combined processes.

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