Anti-contamination nanofiltration membrane water purifier

Abstract

The invention discloses an anti-contamination nanofiltration membrane water purifier. A raw water pump is connected with a raw water pipeline which is connected with a water inlet of a multi-medium filter, a water outlet of the multi-medium filter is connected with an ozone mixing chamber, and an ozone inlet formed in the bottom of the ozone mixing chamber is connected with an ozone generator through a high pressure fan; a water outlet of the ozone mixing chamber is connected with a water inlet of an activated carbon filter, a water outlet of the activated carbon filter is connected with a fine filter, a water outlet of the fine filter sends water into a nanofiltration membrane filter through a high pressure pump, an ultraviolet disinfection device is installed at a water outlet of the nanofiltration membrane filter, and the water outlet of the nanofiltration membrane filter is connected with a purified water outlet pipe through the ultraviolet disinfection device; concentrated water outlets of nanofiltration membranes are connected with a wastewater discharge pipeline. Compared with an existing nanofiltration membrane water purifier, according to the anti-contamination nanofiltration membrane water purifier, the chlorine resistance and oxidation resistance of nanofiltration composite membranes are improved by five times or above, the water flux of the water purifier is increased by 20%-50% than that of the existing water purifier, the anti-contamination property is improved by two times or above, and the water production rate of the equipment is increased to 70% or above.

Description

technical field [0001] The invention relates to a water purifier, in particular to an anti-pollution nanofiltration membrane water purifier, which belongs to the technical field of water treatment. Background technique [0002] At present, nanofiltration or RO membrane water purifiers or water purification equipment at home and abroad are usually in the majority, and there are also two-stage or even multi-stage reverse osmosis or nanofiltration membrane filtration in industry, but second-stage or even multi-stage reverse osmosis or nanofiltration membrane filtration is rarely used in households and other civilian fields. Level or multi-level, even if double reverse osmosis membrane filter elements are used, it is to increase the flow of pure water to cancel the pressure storage tank. Since there are bottled pure water filtered by two-stage reverse osmosis membrane filter elements on the market, its taste It is sweeter than that filtered by the primary reverse osmosis membran...

AI Technical Summary

Problems solved by technology

Another major disadvantage of nanofiltration membranes is that their anti-fouling ability is very weak. Many potential pollutants in raw water, such as colloids, proteins, microorganisms, and hard water ions that are easy to scale, are likely to cause fouling of the membrane, making the membrane performance rapid. Attenuation, which requires additional pretreatment to remove these components as much as possible, which also increases the cost of membrane use

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