MO-80-F water treatment system
The MO-80-F water treatment system is designed for water purification of open reservoirs and wells from suspensions, colloids, disinfection of bacteria and viruses, removal of the compounds of iron, manganese, sulfur, phosphorous, organic matters (including oil products) as well as for water purification of dissolved salts, including hardness salts.
The system may be used for water supply of the houses to 8 people at the consumption rate of 250 l/person a day.
When consuming water only for drinking and culinary, the system may be used for water supply up to 400 people.
The system is mounted on the frame of anodized aluminum machine-tool profile, equipped by the vibration-isolating wheels. The system pipelines are made of polypropylene pipes, the electrical communications are in the polyamide corrugated tube. The high-pressure pump is set on the isolation pads.
The concentrate and a flushing water of the reactor are dumped through the unit of break of a water sheet to eliminate a backflow from sewerage into the system.
The system has been designed with regard to:
- freedom of the user for option of the consumable;
- minimization and simplicity of maintenance;
- the maximum utilization of the serial assembles and parts;
- the maximum maintainability;
- operation under the conditions of unstable electric power supply.
Technology of water purification
A source water comes to the input of the preliminary filter, where it is cleared of mechanical impurities and dissolved organic matters according to the type of the used cartridges and comes to the multiphase injection reactor.
In the reactor a water passing through the ejector is mixed with atmospheric air. An air-and-water emulsion jet issuing from the ejector nozzle fluidizes a layer of the catalytic filling located over the nozzle. In the fluidized layer an intensive oxidation of the impurities (iron, manganese, hydrogen sulfide, ammonia) dissolved in water takes place. The suspensions formed during oxidation are trapped by a fixed layer of the catalytic filling and removed during automatic backwashing of the reactor.
A treated water from the reactor comes to the post-filter, where the suspensions and the wear debris of the filling, not trapped in the layer of the filling, are removed, and the dissolved organic matters are also adsorbed according to the type of used cartridges.
Then a treated water passes through the UV disinfection unit and comes to the input of the high-pressure pump, then it is delivered under pressure in the nanofilter membrane cases, where it is divided into the desalted permeate and the concentrate enriched with salts. The concentrate is dumped in sewage, and a flushing water from the reactor comes to the concentrate drainage line.
The purified water is dosed with sodium hypochlorite and comes to the output pipeline.
|Name of parameter||Value|
|Dimensions, mm, no more than||800 (L) х 300 (W) х 850 (H)|
|Average productivity of purified water (at +8°С temperature of source water), l/h, no less than||80|
|Weight (without water), kg, no more than||48|
|Power supply||220 V, 50 Hz|
|Power consumption, W, no more than||110|
|Average consumption of drainage water, l/h, no more than||40|
|Pressure in source water path at the system input, MPa||0.15…0.6|
|Ambient temperature for storage and operation, °С||+5…+40|
|Service life before overhaul, m3 of purified water, no less than||3,000|
|Assigned resource, m3 of purified water, no less than||8,000|
The maximum concentrations of impurities in source and purified water are shown in the table.
Parameters of water purification for MO-80-F system
|Parameter, units||Source water||Purified water||Maximum value according to Sanitary rules/norms 126.96.36.1994-01. Drinking water|
|Turbidity by kaolin, mg/l||5||0||0.5|
|Total iron, mg/l||10.0||0.1||0.3|
|Sulfides (hydrogen sulfide), mg/l||0.01||0||0.003|
|Biochemical oxygen demand, mg О2/l||5.0||0.5||2|
|Total hardness, mg-equivalent/l||20||1.5||7.0|
|Total mineralization, mg/l||2,000||300||1,000|
|bacteria (forming and non-forming spores), m.t./l||1*106||0||0|
|viruses, plaque-forming unit/l||1*106||0||0|
The system is fully ready for operation.
When operating, the system uses sodium hypochlorite, the filter cartridges and an electrical energy.
The specific consumption of an electrical energy is up to 1.38 kW·h per 1 m3 of purified water.
Drainage waters of the system are nontoxic, and their water evacuation on a relief and in the natural reservoirs is admissible without additional treatment.
The system is completely automated and does not demand a control from the user.