очищення води

Electrocoagulation process is widely used for the removal of pollutants from the industrial wastewater. In the present study, an attempt was made to investigate the performance of electrocoagulation process using alu-minum and iron electrodes to treat the metal ions present in the synthetic galvanic wastewater. The electrodes used are with and without perforations and it was observed that the efficiency of electrodes with perforation (80 %) was higher than without perforations (50 %). The removal efficiency of heavy metal ions increased with retention time and direct current.

The coagulant and disinfectant qualities of Moringa oleifera and Citrus paradisi were investigated on various water samples acquired from sachet water (packaged water), borehole water, river water and well water. The results revealed that Moringa oleifera functioned adequately at settling time beyond 2 h in highly turbid river water but was more effective when combined with Citrus paradisi. Moringa oleifera or its combination with Citrus paradisi is less effective for turbid water treatment but effective for river water (sample) purification.

Some new modified sorbents based on opoka from Astrakhan region were obtained. A comparative study of the sorption of cadmium ions on the surfaces of the sorbents was made. Also the static adsorption isotherm of substances from aqueous solutions was studied. The change of enthalpy, isobaric-isothermal potential and entropy of sorption and kinetics of cadmium ions sorption from water solutions were calculated. The results of the study can be used for the water purification from cadmium ions

The research determines the efficiency of the use of activated carbon in the process of water purification from heavy-metal ions for technological purposes in the food industry. Comparative studies of the use of sorbents of various types of activated carbon have been carried out. The study determines the factors that influence the efficiency of drinking water purification from heavy metal ions through activated carbon. It also proves the highest efficiency of oxidized form of activated carbon

Water is the only liquid used in human eating which presents different production and transportation processes. All the alimentary liquids, in fact, need production and sanification processes in controlled environments and transportation on carriers. On the other hand, besides more simple production processes, water can rely both on distribution networks and transportation on carriers. In the last years, bottled water consumption greatly increased not only for healthy needs but also for non-essential ones.

Investigation results of the aqueous solutions purification process from ammonium nitrogen by composite ceramic adsorbent on basis of synthetic NaA zeolite shown in current article. Determined higher effectivity of investigated material within ammonium removal compairing to natural zeolite formations. Given work- and full ionexchange capacities of adsorbent, which allows arguments for its succesfully using in another cation-exchange processes.

Запропоновано подачу газів різної природи в реакційне середовище для знеза-
раження води від бактерій в умовах кавітації. Доведено, що подача газу впродовж
перших трьох хвилин процесу пришвидшує розбиття скупчень агрегатів у водному
середовищі в акустичних умовах, що пов’язано з утворенням додаткових зародків
кавітації порівняно із протіканням процесу за відсутності подачі газу. Встановлено, що у
початковий момент реакції енергія кавітації витрачалася на розбивання скупчень