A three-dimensional desalination method with upflowing polymerization, mid-flowing adsorption and down-flowing discharge

The three-dimensional desalination system, which combines top-collection, mid-absorption, and bottom-extraction, effectively removes salt from saline-alkali land by utilizing water supply and negative pressure pumping systems. This solves the problem of salt accumulation in saline-alkali soil and realizes the resource utilization of saline water and soil improvement.

CN122397411APending Publication Date: 2026-07-17XIAN UNIV OF TECH +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively address the problem of soil salinity accumulation, resulting in incomplete improvement of saline-alkali land and wasting limited water resources.

Method used

A three-dimensional desalination system with top concentration, middle absorption, and bottom discharge is adopted. The system dissolves salt through a water supply system and uses a negative pressure extraction system to extract and discharge salt from both the top and non-top soil layers. Combined with a radiation desalination system, a three-dimensional desalination system is achieved.

Benefits of technology

It enables rapid desalination of saline-alkali land, reduces the accumulation of salt in the topsoil, utilizes saline water as a resource, improves the soil environment, and creates suitable conditions for subsequent planting.

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Abstract

本发明公开了一种上聚中吸下排立体式除盐系统及方法,属于盐碱土处理设备技术领域,包括供水系统和负压抽排系统,供水系统用于盐碱土壤提供溶解盐分的水,负压抽排系统的进水口连接到辐射排盐系统,辐射排盐系统位于耕层土壤下方的非耕层土壤,用于抽吸非耕层土壤的盐分,负压抽排系统的进水口还连接到耕层土壤内,用于抽吸耕层土壤中的盐分。供水系统和排盐系统组合使用,利用供水系统为土壤提供溶解盐分的水源,利用排盐系统将溶解后的盐分排出至土壤外部,实现除盐,而且是针对表层聚集除盐、耕层土壤抽吸除盐和非耕层土壤抽吸除盐,能够从根本上解决除盐问题,降低耕层土壤下的盐分汇聚到耕层导致耕层土壤不满足耕地要求。
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