Water pollution treatment and recycling system and method of salt and alkali area

Abstract

The invention discloses a water pollution treatment and recycling system and method of a salt and alkali area. The system comprises a cyclone sand settling device, an adjusting storing pool which is communicated to the cyclone sand settling device through a pipeline, a high-speed depositing pool which is communicated to the adjusting storing pool through a pipeline, an immersed ultrafiltration device which is communicated to the high-speed depositing pool through a pipeline, and a reverse osmosis device which is communicated to the immersed ultrafiltration device through a pipeline. Accordingto the system, water sequentially flows through the cyclone sand settling device, the adjusting storing pool, the high-speed depositing pool, the immersed ultrafiltration device and the reverse osmosis device, so that the water is subjected to pollution treatment and recycling, and the drained water meets urban municipal non-drinking water standard. The invention further discloses the water pollution treatment and recycling method of the salt and alkali area. With the adoption of the system and the method, primary rainwater containing high salt content in a rainwater draining opening at the salt and alkali area can be efficiently treated under an extremely limited site space in the salt and alkali area; water in surrounding brackish water and salt water pollution areas can be deeply cleaned and recycled.

Description

technical field [0001] The invention relates to the field of rainwater pollution treatment, in particular to a system and method for water pollution control and regeneration in saline-alkaline areas. Background technique [0002] my country's per capita water resource consumption is only 30% of the world level, and most areas are short of water or severely short of water. In recent years, with the further deepening of urbanization, the demand for water resources is increasing. How to develop efficiently Utilization of water resources has become a challenge that the whole society needs to face together. The total area of ​​coastal saline-alkali soil in my country is 500×104hm 2 , both surface water and groundwater in saline-alkaline areas have the characteristics of high salinity and large fluctuations in salinity. The concentration of TDS in coastal saline-alkaline water body varies from 3000mg / L to 20000mg / L. Especially in saline-alkaline areas, where there is a severe sh...

AI Technical Summary

Problems solved by technology

The method integrates a cyclone sand settler, a storage tank, an ultra-high-speed sedimentation tank, a submerged ultrafiltration device and a reverse osmosis device to treat sewage, achieve the purpose of deep purification, regeneration and reuse, and solve the problem of occupying land in the existing treatment methods. Defects such as large area, low pollution load, and inability to deal with problems of high salinity and high salinity

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