Equipment for preparing fresh water with various water qualities

Abstract

The invention provides equipment for preparing fresh water with various water qualities, which is characterized by comprising a raw water collection device for collecting raw water from a water source, wherein the raw water is selected from seawater or brackish water or fresh water, a raw water pre-treatment device which comprises a filter screen filtering part used for filtering raw water to intercept suspended solids with the particle size larger than or equal to 30-80 microns, a membrane filtering part used for further filtering water to intercept suspended solids with the particle size larger than or equal to 0.1 micron to obtain C-grade water, a reverse osmosis treatment device which comprises a first reverse osmosis unit used for carrying out reverse osmosis treatment on C-grade water with seawater as raw water so as to obtain water with the ion concentration of 200-500ppm, a second reverse osmosis unit used for carrying out reverse osmosis treatment on C-level water with brackish water or fresh water as raw water to obtain water with the ion concentration smaller than or equal to 200 ppm, and a third reverse osmosis unit used for carrying out secondary reverse osmosis treatment on the water to obtain water with the ion concentration smaller than or equal to 10 ppm.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a variety of water quality fresh water production equipment. Background technique [0002] my country's natural water resources are very rich in types, including rivers, lakes, rivers, seas, reservoirs, canals, wells and other surface water or groundwater, etc. According to whether the water contains salt, the above water resources can be divided into seawater, brackish water and freshwater. In order to make full use of these natural water resources, the raw water collected from the water source can be processed into drinking water through water extraction equipment. [0003] In the prior art, water production equipment with a certain scale and built at a fixed location is usually only specially designed for local water sources, and seawater desalination production equipment is more common. The whole of such water production equipment is often very large, and it is set...

AI Technical Summary

Problems solved by technology

[0008] The present invention is carried out to solve the above-mentioned problems of rapid preparation of fresh water of various water qualities and the problem of excessive volume of water production equipment, and the purpose is to provide a movable fresh water production equipment of various water qualities

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