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Information × Registration Number 0205U004377, 0103U000915 , R & D reports Title Oxidation-reduction processes in the biological purification of water popup.stage_title Head Globa L.V., Registration Date 23-03-2005 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Subject of an investigation: Subject of the investigation is the oxidation-reduction processes in the biological purification of water Aim of an investigation: -development of scientific bases of the oxidation metabolism of aerobic bacteria of different taxonomic groups capable to use inorganic compounds with variable valent elements as thermal acceptors of electrons during the oxidation of organic contaminations. Methods of an investigation: cultivation of microorganism cultures, microbiological methods for the determination of quantity of colony units forming nitrificating microorganisms by boundary dilution methods, physico-chemical methods for the determination of ammonium nitrogen, nitrates, nitrites, orthophosphates, chromates, surfactants by means photocalorimeter KFK-3. Basic results: It is established that the biological reduction of Cr(VI) can be conducted under aerobic conditions during periodic and continuous cultivation of selected microorganisms. The possibility of the biotechnologicalremoval of biogeneous elements, for example, nitrogen, phosphor compounds from water has been shown. The methods for the intensification of water purification from surfactants and humus substances have been considered. The influence of physical, chemical, and biological factors on the processes of the oxidation of organic substances by heterotrophic and autotrophic microorganisms has been studied. Area of application: the efficiency of the purifying installation operation can be increased by the use bacterium strains which are capable to change oxidation-reduction potential of medium and in this way to use being and introduced inorganic compounds with variable valent elements in water as terminal acceptors of electrons for the organic contamination oxidation. Product Description popup.authors popup.nrat_date 2020-04-02 Close