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Underground reservoir technology preventing seawater intrusion

A technology for underground reservoirs and seawater intrusion, applied in water supply devices, drinking water devices, buildings, etc., can solve the problems of high water quality requirements for recharge water, fresh water flowing into the ocean, waste of fresh water resources, etc., and achieve the effect of solving the problem of sea water intrusion

Inactive Publication Date: 2016-06-22
大连久鼎生态流域治理开发有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Artificial recharging needs to consume a lot of surface fresh water resources, part of the fresh water flows into the ocean in vain, and a large number of water diversion projects need to be built, and the water quality requirements for recharging water are also high
Artificial pumping uses pumping to form a low water level. The pumped water is a mixture of seawater and fresh water. Generally, it cannot be used for water supply and wastes a lot of fresh water resources.

Method used

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  • Underground reservoir technology preventing seawater intrusion

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] Such as figure 1 As shown, first survey the coastal hydrogeological conditions near the coastal areas or islands and reefs, determine the interface between seawater and underground freshwater, and then build an underground water-blocking curtain 1 in the freshwater area close to the interface, underground water-blocking curtain 1 and underground water-blocking curtain 1 The water blocking area encloses the coastal groundwater into an independent area, blocks the seawater intrusion channel, and the fresh water in this area will not be invaded and polluted by seawater. Most of the precipitation in coastal areas enters the sea with surface runoff. The waste of fresh water resources, slow infiltration rate and insufficient underground water storage are the main reasons for this phenomenon.

[0014] In order to store as much groundwater resources as possible, an undergro...

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Abstract

The invention discloses an underground reservoir technology preventing seawater intrusion. Hydrogeologic survey serves as a mean, interfaces, positions, ranges and modes of underground seawater intrusion of islands, reefs and coastal cities are found out, an underground water-blocking curtains are built to cut off hydraulic connection between underground seawater and fresh water, an artificial underground water storage layer is built, and rainfall is fully intercepted by means of seepage-prevention ditches, radiation wells and the like. A seawater intrusion channel is cut off in a key position, seawater intrusion is prevented, the problem about fresh water resource self-supply of coastal cities, islands and reefs can also be solved, and fresh water resources are scientifically and reasonably protected, developed and used.

Description

technical field [0001] The invention relates to the technical field of coastal and island water conservancy construction. Background technique [0002] Seawater intrusion in coastal areas will cause problems such as salinization of cultivated land, pollution of fresh water sources, and corrosion of underground facilities, which seriously restrict the economic and social development of coastal areas. At present, the prevention and control of seawater intrusion mainly include: limited exploitation of groundwater, artificial recharge, artificial pumping, etc. Limited exploitation of groundwater means a reduction in water supply, which will further increase the contradiction between supply and demand of freshwater in coastal areas. Artificial recharging requires a large amount of surface fresh water resources, some of which flow into the ocean in vain, and a large number of water diversion projects need to be built, and the water quality requirements for recharging water are al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/18E03B3/24
CPCE03B3/18E03B3/24
Inventor 卢明全柳玉印张洪军刘臣
Owner 大连久鼎生态流域治理开发有限公司
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