Salty water-fresh water replacing and leaching desalting device for coupled phreatic aquifer

A technology for submerged layer and brackish water, applied in the field of coupled submerged layer brackish water replacement and leaching and desalting devices, can solve problems such as residue, water loss, and aggravated soil surface, so as to reduce salinity, solve salt return, and save The effect of freshwater resources

Active Publication Date: 2018-12-14
HOHAI UNIV
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Salty water-fresh water replacing and leaching desalting device for coupled phreatic aquifer
  • Salty water-fresh water replacing and leaching desalting device for coupled phreatic aquifer
  • Salty water-fresh water replacing and leaching desalting device for coupled phreatic aquifer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0065] Such as figure 1 As 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 .

[0066] The field desalination assembly includes several desalination units 10, water inlet components and drainage components.

[0067] 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.

[0068]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a salty water-fresh water replacing and leaching desalting device for a coupled phreatic aquifer. The device comprises a field desalting assembly, a saline water treatment assembly and a rainwater collection wetland. The field desalting assembly comprises a plurality of desalting units, a water inlet component and a drainage component, and each desalting unit comprises a desalting unit contour, a water inlet branch part and a partition plates; the saline water treatment assembly comprises a sedimentation tank, an overflow weir, an ecological corridor and a filter pipe;and the rainwater collection wetland comprises a water-impermeable layer, a water collecting tank, a water distribution well, a perforated communicating pipe and a water storage porous medium. According to the invention, underground water of saline-alkali soil is changed, and the underground water is gradually desalted through a plurality of cycles; and on the other hand, a mode of rotation irrigation of brackish water and rainwater is adopted, so that precious fresh water resources in coastal regions are saved, collected rainwater is fully utilized to be added into the cycle of the underground phreatic aquifer, and therefore, the problem of desalination of coastal saline-alkali soil is fundamentally solved.

Description

technical field [0001] The invention relates to the field of saline-alkali land irrigation, in particular to a device for replacing salty and fresh water in a submerged layer and leaching and desalting. 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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00
CPCA01B77/00
Inventor 鲁春辉张加旭叶逾
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap