Water treatment unit MO-120 (hereinafter referred to as the unit) is designed to purify water from open water bodies, wells and boreholes from suspended solids, colloids, disinfection from bacteria and viruses, removal of iron compounds, manganese, copper, sulfur, phosphorus, organic substances (including petroleum products), purification from dissolved salts, including hardness salts. The unit can be used to supply water to individual houses with simultaneous residence of up to 12 people at a consumption rate of 250 litres/person per day. If water is consumed only for drinking and cooking purposes, the unit can be used to supply water to up to 600 people.
The equipment of the unit is mounted on a frame made of anodised aluminium machine profile equipped with vibration-isolating wheels. The pipelines of the plant are made of polypropylene pipes, electrical communications are laid in polyamide corrugated pipe, high-pressure pump is mounted on vibration supports. Discharge of concentrate and reactor wash water into the sewerage system is performed through a jet breaker to exclude water ingress from the sewerage system into the unit. Water purification technology: The initial water enters the pre-filter inlet, where it is purified from mechanical impurities and dissolved organic substances (optional, depending on the type of cartridges used) and enters the multiphase injection reactor. In the reactor, water passing through the ejector is mixed with atmospheric air. The jet of water-air emulsion coming out of the ejector nozzle fluidises the catalytic backfill layer located above the nozzle. In fluidised layer intensive oxidation of dissolved impurities in water (iron, manganese, hydrogen sulphide, ammonia) takes place. Suspended solids formed during oxidation are captured by a fixed layer of catalytic backfill and removed by automatic backwashing of the reactor. The treated water from the reactor enters the post-filter, where suspended solids not caught in the catalytic bed, wear products of the bed, and dissolved organic matter adsorbed (optional, depending on the type of cartridges used) are removed. The treated water is then fed to the inlet of a high-pressure pump and pressurised into the nanofiltration membrane housings, where it is separated by the membranes into a desalinated permeate and a salt-enriched concentrate. The concentrate is discharged into the sewage system, and the concentrate discharge line also receives wash water from the reactor. The purified water is supplied with a preserving dose of sodium hypochlorite (optional, depending on the equipment of the plant) and enters the outlet pipeline.
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