Central direct drinking water treatment system

Abstract

The invention relates to a central direct drinking water treatment system. The central direct drinking water treatment system comprises a front-arranged treatment system, a water supply system and anultrafiltration-reverse osmosis treatment system, wherein the front-arranged treatment system, the ultrafiltration-reverse osmosis treatment system and the water supply system are sequentially communicated, the ultrafiltration-reverse osmosis treatment system comprises an ultrafiltration device and a reverse osmosis device, a concentrated water outlet of the ultrafiltration device is communicatedwith a concentrated water side inlet of the reverse osmosis device, an ultrafiltration water outlet of the ultrafiltration device is communicated with a purified water side outlet of the reverse osmosis device, a concentrated water side outlet of the reverse osmosis device is communicated with a water inlet of the ultrafiltration device, and a purified water side outlet of the reverse osmosis device is communicated with a water inlet of the ultrafiltration device. The central direct drinking water treatment system has the technical advantages that not only are harmful substances in water are removed to achieve the aim of drinking water safety, but also required macro and micro elements which are suitable for human body for a long term and healthy drinking are preserved; after being used for a period, the ultrafiltration device and the reverse osmosis device can be reused through chemical cleaning, so that the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a central direct drinking water treatment system. Background technique [0002] Membrane filtration devices are mostly used in traditional drinking water purification systems (equipment). Membrane filtration devices are usually equipped with ultrafiltration membrane elements or reverse osmosis membrane elements. This kind of water purification treatment equipment has the following defects: [0003] The ultrafiltration (with ultrafiltration membrane element) device can only filter out suspended solids, colloids, color, bacteria, macromolecular organic matter, microorganisms and other harmful substances in water, but for dissolved solids in water, such as hardness (calcium ions, magnesium ions), alkalinity (carbonate ions, bicarbonate ions, metasilicate ions), sulfate ions, chloride ions, harmful heavy metal ions, radioactive elements and chlorine disinfection negative products have ...

AI Technical Summary

Problems solved by technology

[0004] Therefore, on the whole, none of the aquatic products or water purification equipment on the market can meet the needs of most people for drinking water, and the water problem of Chinese people needs to be solved urgently.

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