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A tidal flat desalination method coupled with water cycle

A water circulation and desalination technology, applied in the field of saline-alkali land irrigation, can solve problems such as residue, water loss, and aggravate soil surface, and achieve the effects of reducing waste, reducing water abandonment rate, and reducing soil salinity content.

Active Publication Date: 2021-06-01
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] 2. The evaporation of the land surface intensifies the loss of water on the soil surface, resulting in more serious salt analysis, which remains on the land surface

Method used

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  • A tidal flat desalination method coupled with water cycle
  • A tidal flat desalination method coupled with water cycle
  • A tidal flat desalination method coupled with water cycle

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Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0056] Such as figure 1As shown, a coupled aquifer salty and fresh water replacement and leaching desalination device, that is, an irrigation and drainage system, includes a field desalination component, a brine treatment component and a rainwater collection wetland 30 .

[0057] The field desalination assembly includes several desalination units 10, water inlet components and drainage components.

[0058] The number of desalination units is equal to the number of field plots, at figure 1 In , the field desalination component includes several desalination units shown in bold black boxes horizontally and vertically. In this application, the horizontal direction is also referred to as the left-right direction, and the vertical direction is also referred to as the longitudinal direction or the front-rear direction.

[0059] ...

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Abstract

The invention discloses a tidal flat desalination method coupled with water circulation, which comprises step 1, laying out desalination units; step 2, drilling in-situ pumping wells; step 3, arranging constant water head wells; step 4, arranging salt discharge hidden pipes; step 5 , the field plot is leveled; step 6, brackish water washing salt; step 7, brackish water washing salt drainage; step 8, rainwater collection; step 9, fresh water washing salt; step 10, fresh water washing salt drainage and step 11, washing brine cycle . On the one hand, the present invention changes the groundwater in saline-alkali land, and gradually desalinizes the groundwater through several cycles; The rainwater added to the circulation of the underground aquifer, thus fundamentally solve the desalination problem of coastal saline-alkali land.

Description

technical field [0001] The invention relates to the field of saline-alkali land irrigation, in particular to a tidal flat desalination method coupled with water circulation. Background technique [0002] Coastal tidal flats are an important reserve land resource in our country and an effective measure to solve the contradiction between man and land in our country. [0003] The biggest limiting factor for the development of coastal tidal flats is the severe salinization of the land, which makes it difficult to realize large-scale reclamation and planting and other agricultural activities. The main cause of land salinization is serious groundwater salinization, specifically as follows. [0004] 1. When the rainy season comes, the underground phreatic water level rises, bringing salt water to the soil surface. When the phreatic water level drops, the salt will be adsorbed on solid particles and stay in the soil. [0005] 2. Evaporation of the land surface intensifies the loss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/00
CPCA01B79/00
Inventor 鲁春辉张加旭叶逾王润韵
Owner HOHAI UNIV