Appointment

Removal from water of fine and colloidal impurities, macromolecules, algae, unicellular microorganisms, bacteria and most of the viruses.

Areas of use

Main and auxiliary technological processes at food, metallurgical, petrochemical, pharmaceutical, perfumery and other industries, boiler houses and other housing and communal services facilities.

Filter material

High quality polymer membranes with pore size from 0.002 to 0.1 microns.

The type and brand of membranes is determined based on the requirements for the quality of the treated water and the design of the ultrafiltration system.

Work management

Automatic by means of an electronic programmable controller.


System complete set
  • membrane unit (s);
  • unit for regulating the flow and pressure of source water;
  • mechanical filter;
  • coagulant dosing complex;
  • set of pipeline and stop valves;
  • set of measuring equipment;
  • set of pilot valves;
  • programmable logic controller (PLC);
  • backwash pumping station;
  • dosing complex of acid solution;
  • dosing complex of alkali solution;
  • compressed air line for control of automatic valves.
  • Additional options:
  • equipment for flushing and restoration of membranes (CIP).
  • balance tank for treated / rinse water;
  • tank for neutralization of chemical effluents.

Operating principle

The principle of operation of the system is based on the passage of a stream of water under pressure through semi-permeable membranes without discharging the concentrate during the working filter cycle. The duration of the filtration cycle is 20-60 minutes. During this time, various impurities are deposited on the surface and on the walls of the pores of the membranes. As a result, the total hydraulic resistance of the membrane modules increases, which leads to a decrease in system performance.

To restore the original performance of the system, water-air flushing of the membranes is required. Part of the purified water under pressure is fed into the filtrate path of the system for 20-60 seconds. In the process of flushing, a layer of accumulated contaminants is removed from the membrane surface. For more effective removal of contaminants, membranes are flushed with acid and alkaline reagents.

The ultrafiltration method allows you to remove from water fine and colloidal impurities, macromolecules, algae, unicellular microorganisms, bacteria and viruses. Thus, the use of membrane ultrafiltration for water purification allows preserving its salt composition and carrying out clarification and disinfection of water without the use of chemicals, which makes this technology promising from an environmental and economic point of view.

The capacities are indicated for systems with membrane modules * DIZZER® from INGE AG (Germany).

Basic requirements for the quality of source water

Ranges and maximum allowable concentrations of input water indicators for standard ultrafiltration systems *:

pH of the source water - 3 -10;
turbidity EMF - max. 300;
permanganate oxidizability, mg О 2 / l - max. 80.

For membrane modules dizzer *) –® by INGE AG (Germany).

Basic conditions for the use of systems

working pressure - from 1 to 2.5 atm;
electrical parameters of the control mechanism - 380 V, 50 Hz, from 2 kW and more;
room air temperature 5 - 35 ° С;
humidity - no more than 70%;
the presence of a drainage system;
the presence of instrumental (compressed) air (6 atm.);

maximum permissible concentrations of chemical reagents for washing and disinfection of membranes:

NaOCl (active chlorine) max. 200 mg / l;
H2O2                             max. 500 mg / l;
NaOH                             max. pH = 13;
HCl, H2SO4                   min. pH = 1.