Three-in-one drinking water treating process and apparatus

Abstract

The present invention is three-in-one drinking water treating process and apparatus. The technological process includes a pre-treating step, an active oxygen-water mixing step, a photochemical oxidation-reduction step, a ceramic film ultrafiltering step and a back flushing step. The apparatus includes a raw water storing barrel, a coarse filtering tank, a carbon filtering tank, a precise filtering tank, water pipeline, a valve, a back flushing system, an active oxygen generator, an active oxygen mixer, an ultraviolet ray generator, a photochemical oxidizing and reducing tube, and a ceramic film ultrafilter connected together. The present invention combines active oxygen, ultraviolet ray and ceramic for water treatment to make water reach the quality of natural drinking water.

Description

technical field [0001] The invention relates to a drinking water treatment process and its device, in particular to a three-in-one drinking water treatment process and its device. technical background [0002] At present, the methods for human to clean water and eliminate bacteria are nothing more than boiled water, distilled water, purified water filtered by reverse osmosis, purified water or pure water produced by ion exchange or electrodialysis. None of the above methods is ideal. Boiled boiled water has not been completely cleaned of inorganic and organic pollution, and long-term use is harmful to human health; while distilled water will cause the disappearance of minerals in the water, but carcinogenic chlorides are still in it, and at the same time, its cost is high; Pure water has a bad taste, no minerals and rare elements, and 75% of water resources are wasted during production; the water produced by the ion exchange method contains too much sodium, the taste is not...

AI Technical Summary

Problems solved by technology

Ultraviolet light UV in sunlight has bactericidal ability, but it cannot remove organic and inorganic pollution

Although in the 1990s it was discovered that UV and O 3 Its synergistic effect is very good, but because it still cannot guarantee complete sterilization, it cannot be used in conjunction with organic fibers (ultrafiltration) and organic membranes (RO reverse osmosis)

Therefore, it is only widely used in the treatment of industrial wastewater, but not in the strict drinking water treatment.

In the traditional method, the ceramic membrane is used for filtration. In use, the filter element is easy to block, especially if there is an organic pollutant during filtration, it will be blocked instantly, and backwashing cannot be realized. The production and use of the ceramic ultrafiltration membrane filter element are expensive, and it cannot be used like an organic filter element. Filter elements and organic membranes can be replaced frequently, which is also the main obstacle to the commercial application of ceramic membranes in the drinking water industry

Images