Seawater desalination treatment method adopting combination of wind energy power generation and salt chemical industry

Abstract

The invention provides a seawater desalination treatment method adopting combination of wind energy power generation and salt chemical industry. The method comprises the following steps of: performing desalination treatment on the seawater by using a reverse osmosis seawater desalination system to obtain fresh water and concentrated seawater; supplying power to the reverse osmosis seawater desalination system by a wind energy generator; treating the concentrated seawater by a potassium ion sieve and extracting potassium ions; extracting bromine in the concentrated seawater by using an air blowout method; extracting magnesium in the concentrated seawater by using a precipitation method; extracting salt from the concentrated seawater by using an ion exchange method to prepare refined salt or liquid salt and halogen fresh water subjected to desalination; and delivering the halogen fresh water to the reverse osmosis seawater desalination system. According to the seawater desalination treatment method adopting combination of wind energy power generation and salt chemical industry, the seawater is desalted by using a reverse osmosis method, chemical elements and rare metals in the concentrated seawater are extracted and recovered; and the resource waste is reduced while a large quantity of byproducts are acquired, so that the production cost of seawater desalination is indirectly reduced.

Description

technical field [0001] The invention belongs to the field of seawater desalination, and in particular relates to a seawater desalination treatment method combined with wind power generation and salt industry chemical industry. Background technique [0002] In the strategy of sustainable economic and social development, the issue of sustainable use of water has become increasingly prominent. Water has become an important factor restricting economic and social development. Using seawater resources for large-scale desalination treatment and opening up new water sources has become an inevitable trend all over the world. [0003] Seawater desalination refers to the process of using seawater desalination to produce fresh water. Seawater desalination can increase the total amount of freshwater, and is not affected by time, space and climate. The water quality is good and the price is gradually becoming more reasonable. It can ensure stable water supply such as drinking water for c...

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Problems solved by technology

[0004] However, the various seawater desalination methods in the prior art do not reprocess the concentrated seawater after extracting the fresh water, which causes a large amount of rare metal substances contained in the desalinated concentrated seawater to be completely wasted, which indirectly leads to the desalination of seawater. high cost

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