Please use this identifier to cite or link to this item: https://er.chdtu.edu.ua/handle/ChSTU/2218
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dc.contributor.authorСтоляренко, Геннадій Степанович-
dc.contributor.authorАзизов, Рустам Очильдиевич-
dc.contributor.authorТупицкий, Богдан Иванович-
dc.date.accessioned2021-04-28T14:27:18Z-
dc.date.available2021-04-28T14:27:18Z-
dc.date.issued2019-
dc.identifier.issn2306-4412-
dc.identifier.issn2306-4455-
dc.identifier.urihttps://er.chdtu.edu.ua/handle/ChSTU/2218-
dc.description.abstractВ статье рассмотрены методы очистки подземных вод – их преимущества и недостатки. Проведено исследование эффективности методом электроактивации, а также определены зависимости параметров электрохимического воздействия на состав подземных вод. Получены графические зависимости степени очистки подземных вод от различных параметров (силы тока, напряжения, расстояния между электродами, времени проведения электроактивации, объема отбора проб кислой воды в процессе электроактивации), проведен их анализ и сделаны выводы относительно использования процесса электрохимической активации для подготовки воды, подаваемой на стадию мембранного обессоливания.uk_UA
dc.description.abstractOne of the main problems of the integrated processing of sea, groundwater or mine water when receiving drinking water is their high salinity, as well as mineral and biological deposits in the processes of demineralization. Several methods for demineralization of water: evaporation, reagents, membranes (reverse osmosis), ion exchange, electrodialysis, etc. have been developed. Each of these methods has both positive and negative qualities and is used within certain concentration limits. New developments offer complex multi-stage mine water treatment schemes with concentrated brine processing. The reduction of CO32-, SO42-, Cl- ions from 25000 to 1000 mg/dm3 is the most sophisticated component of salt extraction technology. These processes are very time consuming and energy intensive. In addition, methods such as electrodialysis, reverse osmosis, sodium cationization are economically feasible to apply with mineralization of 1000-100 mg/dm3 and below. The urgent task is to create an apparatus for primary demineralization of highly mineralized mine water with minimization of energy costs. The method of unipolar electrochemical activation in the purification and desalination of water provides a short-term state of the aqueous solution, when the cathode and anode electrolysis processes have changed its composition, and the processes of mutual neutralization of electrolysis products are artificially restrained by the presence of permeable membranes-partitions, which are temporarily electrodeparticles. At the cathode, a concentration gradient of hydroxyl ions is observed: 2 H2O + 2 e → 2 OH- + H2. At the anode acidification of the electrolyte occurs: 2 H2O - 4 e → 2 H + + 2O2. In the cathode space, due to the increased concentration of free hydroxyl ions, secondary processes of fixation of hydroxides of a number of metals, the cations of which form OH-insoluble bases and basic salts, are observed. The article deals with the methods of groundwater treatment – their advantages and disadvantages. The investigations carried out experimentally have proved the versatility of the method of electrochemical activation of water, which allows to reach the required desalination standards in one process, while reducing the content of organic compounds and (due to the synthesis of ClO- ions) to produce metered water chlorination. The catholyte and anolyte, after pre-extracting the precipitates formed, are mixed for another demineralization step (e.g. reverse osmosis). It is found that the unipolar electrical activation method is effective for mineralized waters containing carbonates, sulfates and chlorides of calcium, magnesium, iron and other heavy metals. Chlorine ion, as shown by the experiments on the treatment of sodium chloride solution, leads to the formation of water desirable ClO- and ClO3- ions, which prevent the clogging and biofouling of membranes. Several semi-industrial devices have been developed and studies of the efficiency of the method of electroactivation have been carried out, dependences of parameters of electrochemical influence on the composition of highly mineralized and groundwater have been determined. Graphic dependences of the degree of water purification on various parameters (current, voltage, distance between electrodes, time of electro-activation, volume of acid water sampling during electro-activation) are obtained, their analysis is made and conclusions are drawn regarding the use of electrochemical activation process for the preparation of water supplied to stage of membrane desaltinguk_UA
dc.language.isoruuk_UA
dc.publisherВісник Черкаського державного технологічного університету. Технічні наукиuk_UA
dc.subjectпредочистка морских водuk_UA
dc.subjectэлектроактивацияuk_UA
dc.subjectстепень очисткиuk_UA
dc.subjectочистка водыuk_UA
dc.subjectпроточный электроактиваторuk_UA
dc.subjectseawater pretreatmentuk_UA
dc.subjectelectroactivationuk_UA
dc.subjectpurification degreeuk_UA
dc.subjectwater purificationuk_UA
dc.subjectflowing electroactivatoruk_UA
dc.titleЭлектроактивационная очистка минерализованных водuk_UA
dc.title.alternativeElectroactivated purification of mineralized watersuk_UA
dc.typeArticleuk_UA
dc.citation.issue3uk_UA
dc.citation.spage98uk_UA
dc.citation.epage107uk_UA
dc.identifier.doi10.24025/2306-4412.3.2019.178601-
Appears in Collections:№3/2019

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