Infiltration Sewer Vertical Conduit Rainwater Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing infiltration and transport sewers (IT sewers) often lack sufficient capacity during heavy rainfall, leading to overflow into surface water or wastewater sewers, contaminating clean rainwater and incurring unnecessary costs.
Innovation Solution
The IT sewer system includes a vertical conduit part that allows infiltration into a deeper ground layer, combined with an elongate sleeve inlet part for rainwater filtration and easy cleaning, ensuring high capacity and compatibility with existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional horizontal conduit system is used, then the structure is simple and easy to install, but the infiltration capacity is insufficient during heavy rainfall
Solution Approach 1:
The patent introduces a vertical dimension to the traditional horizontal conduit system by adding vertical conduit parts that extend downward from the horizontal conduits. This dimensional expansion allows the system to access deeper soil layers for infiltration, significantly increasing the overall infiltration capacity without requiring an overly complex horizontal network expansion.
Solution Approach 2:
The infiltration system is segmented into multiple functional components: horizontal conduits for water collection and transport, vertical conduits for deep infiltration, perforations for water discharge, and geotextile layers for filtration. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability and installation feasibility.
2Reliability
If rainwater is discharged to surface water or overflowed to wastewater sewer, then the immediate capacity problem is solved, but water quality deteriorates and costs increase
Solution Approach 1:
The patent changes the physical parameters of the infiltration system by extending conduit depth through vertical components and increasing the total surface area of perforations. This parameter expansion enables the system to handle higher volumes of rainwater while maintaining infiltration quality, eliminating the need for overflow discharge and associated costs.
3Productivity
If the vertical conduit part is added to increase infiltration capacity, then the rainfall management capability improves, but the installation complexity and cost increase
Solution Approach 1:
The vertical conduit parts serve multiple functions: they provide a pathway for deep infiltration, structurally support the horizontal conduits above, and can be integrated with existing groundwater management systems. This multi-functionality justifies the additional installation effort by delivering multiple benefits from a single structural addition.
4Reliability
If permeable fabric membrane and geotextile layers are added for filtration, then water quality is maintained, but the system complexity and manufacturing cost increase
Solution Approach 1:
The patent employs porous materials including geotextile layers and permeable fabric membranes that allow water passage while filtering out contaminants. These materials are integrated into the conduit structure, providing filtration functionality without requiring separate complex filtration systems, thus maintaining relative simplicity while ensuring water quality.
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
This configuration enables the absorption of rainwater into the ground without overflow, maintaining water quality and reducing costs by efficiently managing rainfall runoff.
Implementation Method 1
a horizontal conduit part (2) provided with perforations (11)
Implementation Method 2
at least one vertical conduit part (8)
Data Source
Figure 1~2
AI summary
Infiltration and transport sewer, comprising at least one horizontal conduit part provided with perforations for transporting water and infiltrating a first ground layer with at least a first part of the water transported through this conduit part, and at least one vertical conduit part (8) for the purpose of infiltrating a second ground layer located lower than the first ground layer with at least a second part of the water transported through the horizontal part.