стічні води

Oil-fat industry produces and recycles vegetable fats and related products. Sewage of this industry contain a large number of pollutants different nature. But, the main contaminating components of this sewage are organic compounds, mainly fatty character. Existing methods of water purification are not capable of providing sufficient degree of wastewater treatment, which would comply established sanitary norms. It’s creates a big problem, because it’s cause pollution of surface waters with organic compounds. Solving this problem is possible when switching to closed water systems.

According to experts, today in Ukraine a quarter of sewage treatment plants and networks worked in value term depreciation. As a result, a large number of cleaning stations decommissioned and wastewater that must be disposed of at these sites, get into the environment completely untreated, causing serious concern because they pose a potential threat to health and life.

The adsorption of Copper (II) and Chromium (III) from aqueous solution by natural zeolite was investigated in fixed bed column. The effects of selected operating parameters such as flow rate and bed depth were evaluated. The breakthrough data are fitted well to Bed Depth Service Time (BDST) and Thomas models with high correlation coefficient, R2 = 0,91. The results showed that zeolite can be an effective adsorbent for Copper (II) and Chromium (III) removal.

The adsorption method of after-treatment of wastewater from the production of vegetable oils was investigated. The reasons of choice the activated carbon as adsorbent was justified. The statics and the kinetics of the adsorption process by activated carbon the organic component from the wastewater of oil production after extraction cleaning was investigated. The experimental data based on the theory of Freundlich and Langmuir were processed and the main constants of the process were defined.

The aim of this work was to study the process of adsorption of Copper and Chromium cations by natural zeolites in static conditions. The change of the chemical composition of the surface of the zeolite as a result of sorption of heavy metals was investigated. The influence of the type of the ions and pH selectivity in absorption of heavy metals removal by zeolite was analysed. The reasons for the selective extraction of Copper from two-component solution were explained.

The  results  of  experimental  studies  of  phosphorus  removal  by  chemical  and  biological methods are provided. The optimum conditions of these processes are made. Наведено  результати  експериментальних  досліджень  вилучення  сполук  фосфору хімічними  та  біологічними  методами.  Встановлено  оптимальні  умови  ведення  цих процесів.

The principal scheme of briquetting the cake that allows to solve the problem of accumulation the large number of cake on the sludge sites is proposed. The scheme is simple and environmentally completed. Запропоновано принципову схему брикетування кеку, що уможливить вирішити проблему накопичення його великої кількості на мулових майданчиках. Схема є простою і екологічно завершеною.

Adsorption of surfactants on varios types of adsorbent was experimentally investigated. Generalization of the obtained results of research and calculation data was carried out. Експериментально досліджено адсорбцію ПАР на різних типах сорбентів. Проведено узагальнення отриманих результатів досліджень та розрахункових даних. 

The  technological  chart  of  wastewater  treatment  from  phosphates  by  application  of exhausted  adsorbent  in  which  exchangeabble  cations  are  substituted  by  the  ions  of  copper, chrome  or  zinc  is  projected  .  The  method  of  regeneration  and  repeated  application  of  the worked zeolite is offered. 

The analysis of consumption, use, and removal of water, the composition of wastewater for breweries: their location and amount. Provides technical solutions to reduce the negative impact of said waste water into the environment.
Проведено аналіз споживання, використання і відведення води, встановлено склад стічних вод на пивзаводах: їх локалізацію та обсяги. Наведено технічні рішення для зменшення негативного впливу вказаних стічних вод на довкілля.