Abstract
The serious salinization of farmland soil and the shortage of water resources in arid areas are becoming more and more serious; In order to solve the problem of shortage of fresh water resources, find a resource that can be converted into fresh water; Brackish water is derived from farmland saline alkali land. Brackish water desalination technology has increased interest in scientists' research. However, brackish water can be used as an effective substitute for freshwater conversion because of its low salt concentration and can also be widely used in many water deficient countries. However, partial or total desalting of brackish water is essential to meet the water quality requirements of production and life. The selection of appropriate water resources desalination technology needs to understand the operation methods and technical means of the existing brackish water desalination process. Proper combination of desalination technologies can improve the efficiency of brackish water desalination. This review provides the latest advances in data, materials and categories that can help select and design requirements for specific applications.
Highlights
About 75% of the earth's surface is covered by water, but only 3% is fresh water[1,2]
There is a lack of research on the process integration technology of membrane desalination under the action of solar energy
Fresh water can be obtained from brackish water, saline alkali water and seawater
Summary
About 75% of the earth's surface is covered by water, but only 3% is fresh water[1,2]. The increase of arid areas in the world, the reduction of the adaptability of water resources to climate change, and the over development of brackish water desalination technology. The application of brackish water desalination technology affects the development of environment and economy[5] In recent years, it is one of the major challenges faced by capitalists in the new century to bring water into the stock market. Desalination of brackish water is a substitute for fresh water because it is low and rich in salinity in areas facing water shortage. Desalination of saline alkali water is the most useful method to solve the shortage of water resources. This paper summarizes the research status of this technology, and integrates the research results of different desalination technologies to provide professional and technical personnel with
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