Patent of invention of the Russian Federation №2206520
Purpose: obtaining deeply desalinated water for technological needs
Deep desalination is the process of complete elimination of the salts and impurities contained in a solution. Deeply desalted (distilled) water is used in pharmaceuticals, medicine, electronics, the chemical industry and other industries.
To obtain deeply desalted water, two (or more) purification steps are used:
The pre-desalination step is a necessary step in the deep desalination process. At this stage, most of the impurities contained in the initial solution are removed from it. For this, ion exchange is the most commonly used method, as well as reverse osmosis and electrodialysis.
Stage of additional deep desalination. Ion-exchange processes (ion exchange, electric deionization) are used at the final stage, which make it possible to remove from water up to 99% of salts and impurities.
Water Technologies and Services Division (Mirrico Group) supplies deep water desalination plants. Proprietary manufacturing operates on the basis of ion exchange and electric deionization (EDI) technologies.
Deep desalination using ion exchange method applying mixed Н-ОН and Н-ОН-Н filters makes it possible to obtain ultrapure water and to isolate silicic acid and organic substances.
The MIRRICO Group of Companies equipment based on this technology has several advantages:
Savings - counter-current ion exchange technology allows you to reduce your own needs for reagents for the regeneration of ion-exchange resins, as well as use in plants of feeders of any manufacturer.
High treatment speed (up to 40 cubic meters per hour).
The ability to adjust the degree of efficiency of equipment (from 10% to 140%).
The technology of electric deionization does not require the use of chemical reagents and allows to obtain high-quality water purification with an electrical resistance index of more than 10 Megmho/cm
Plants based on this technology have the following advantages:
Long life of equipment and ion exchange resin.
Continuous regeneration of the ion-exchange resin in the plant , which eliminates the need to use backup equipment and reagents.
The equipment occupies minimum plant space, requires minimal intervention during operation.
High quality treatment throughout equipment life time.
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Advantages of technology in comparison with alternative solutions:
- Reducing the amount of wastewater by 2-3 times by reducing the amount of washing before starting work.
- Improving the quality of deeply desalinated water (electrical conductivity - less than 0.2 μS / cm, silicic acid - less than 15 μg / liter, sodium - less than 15 μg / liter).
- Simplicity and reliability in operation.
- Simple filter design (modernization of standard filters such as ICF type or mixed-bed filter is possible).
- High filtration rate (up to 50 m / h).
- Possibility of using ion-exchange resins of any production.
- Ease of control and automation.
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