Sand Soil Desalination Layout Using Infiltration and Drainage Channels
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Solution Overview
Problem
The process of sand blowing for levee construction in estuarine land destroys soil structure, leading to high salinity and low organic matter content, making it difficult for vegetation to grow, and existing desalination methods are costly and time-consuming, disrupting project schedules and budgets.
Innovation Solution
A leaching and desalinating system using a water pump and pipe assembly to lift freshwater from a river, connected to freshwater storage tanks and infiltration channels, with drainage channels and infiltration hollows, enhancing soil desalination through controlled infiltration and rainwater use, while minimizing disturbance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional artificial dissolution and desalination methods are used, then desalination can be achieved, but the process is costly and time-consuming, disrupting project schedules and investment control
Solution Approach 1:
The patent applies preliminary action by constructing infiltration hollows and drainage channels during the levee formation process itself, before vegetation planting. This pre-prepared infrastructure enables rapid desalination through natural rainfall infiltration without requiring separate subsequent construction phases, thus reducing overall project time while ensuring effective desalination.
Solution Approach 2:
The patent employs self-service by utilizing natural rainfall as the primary desalination medium rather than requiring artificial water application systems. The infiltration hollows and drainage channels are designed to naturally collect and channel rainwater through the sandy soil, enabling the system to self-regulate and desalinate using free natural resources, thereby reducing costs and construction time.
2Reliability
If traditional artificial dissolution and desalination methods are used, then desalination can be achieved, but the process requires significant investment and is not economical
Solution Approach 1:
The patent employs self-service by utilizing natural rainfall as the primary desalination medium rather than requiring artificial water application systems. The infiltration hollows and drainage channels are designed to naturally collect and channel rainwater through the sandy soil, enabling the system to self-regulate and desalinate using free natural resources, thereby reducing costs and construction time.
Solution Approach 2:
The patent applies discarding and recovering by designing drainage channels that naturally channel rainwater through the sandy soil to the river, effectively discarding the saline water and recovering the fresh water resource. This natural drainage pathway eliminates the need for expensive artificial desalination systems while maintaining effective salt removal.
3Productivity
If sand blowing is used for levee construction, then construction speed and quality are improved, but soil structure is destroyed resulting in high salinity and low organic matter
Solution Approach 1:
The patent applies preliminary action by constructing infiltration hollows and drainage channels during the levee formation process itself, before vegetation planting. This pre-prepared infrastructure enables rapid desalination through natural rainfall infiltration without requiring separate subsequent construction phases, thus reducing overall project time while ensuring effective desalination.
Solution Approach 2:
The patent converts the harmful effect of sand blowing (high salinity and destroyed soil structure) into a benefit by designing infiltration hollows that utilize natural rainfall to leach salts from the sandy soil. The same sandy soil that caused the problem becomes the medium through which natural rainfall effectively removes salts, transforming the harmful characteristic into an effective desalination pathway.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system rapidly desalinated sandy soil at low cost, improving soil properties for vegetation, reducing construction time and costs, and ensuring stable growth, with minimal disturbance and efficient salt removal.
Implementation Method 1
The water pump and pipe assembly lifts freshwater from the river to the freshwater storage tank through a water delivery pipe
Implementation Method 2
multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels
Implementation Method 3
The freshwater in the freshwater storage tank flows to the main diverting and draining channel by gravity, then flows to the infiltration parts through the drainage infiltration channel by gravity
Implementation Method 4
those closer to the main diverting and draining channel are connected to the main diverting and draining channel, and those closer to the river are connected to the river
Data Source
AI summary
A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.