Environmental protective, water saving type method and device for producing pure water through reverse osmosis

Abstract

This invention discloses environmentally friendly method and apparatus for producing reverse osmosis purified water. Pre-treated original water is pressurized by a high-pressure pump, and then passes through a reverse osmosis membrane to obtain purified water that can be used. The obstructed concentrated water containing high-concentration soluble pollutants is wastewater, whose pressure is higher than that of original water. The majority of wastewater is returned to the pre-treatment apparatus by a unidirectional valve, and the minority of wastewater is discharged by an adjustment valve to keep the cleanness of the reverse osmosis membrane. Compared with present techniques, this invention has lower water consumption and higher purified water quality.

Description

technical field [0001] The invention relates to a pure water production method and device. Background technique [0002] There are two major problems in the existing domestic water resources. The first is serious shortage; the second is poor water quality, which contains a large amount of harmful substances (such as heavy metals) that seriously endanger human life and health. And although the existing reverse osmosis pure water production device can basically remove and filter the harmful substances in the water, it must consume a large amount of water with a slightly higher content of soluble harmful substances due to the limitation of the working process of the reverse osmosis treatment device. Due to the limitation of its equipment structure, some technologies cannot reuse these waters. In this way, although the water quality problem of drinking water is solved, the price paid is to waste a lot of water. Generally, the production of 1 liter Pure water needs to waste 2.5-...

AI Technical Summary

Problems solved by technology

[0002] There are two major problems in the existing domestic water resources, the first is a serious shortage; the second is poor water quality, containing a large number of harmful substances (such as heavy metals), which seriously endanger human life and health

And although the existing reverse osmosis pure water production device can basically remove and filter the harmful substances in the water, it must consume a large amount of water with a slightly higher content of soluble harmful substances due to the limitation of the working process of the reverse osmosis treatment device. Due to the limitation of its equipment structure, some technologies cannot reuse these waters. In this way, although the water quality problem of drinking water is solved, the price paid is to waste a lot of water. Generally, the production of 1 liter Pure water needs to waste 2.5-3.5 liters of water

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