Subterranean Capillary Irrigation Using Gravity-Driven Seep Holes
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Solution Overview
Problem
Existing irrigation systems face challenges such as high energy consumption, clogging due to turbidity, inefficient water distribution, deep percolation, and weed growth, especially when using untreated greywater or high turbidity water sources, and are limited in their ability to manage varying water tables and environmental fluctuations.
Innovation Solution
A multipurpose bidirectional nonpressurized subirrigation apparatus using large bidirectional seep holes and a self-leveling saturated channel to allow gravity-driven water flow, preventing deep percolation, managing water tables, and handling high turbidity water without energy input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pressurized irrigation systems with small orifices are used, then water distribution efficiency is improved, but the system becomes susceptible to clogging from turbidity and greywater contaminants
Solution Approach 1:
The patent changes the fundamental parameter of water delivery from pressurized flow through small orifices to gravity-driven flow through large seep holes. This parameter change eliminates the clogging issue while maintaining water distribution efficiency, as the large seep holes (e.g., 1 inch diameter) cannot be clogged by typical irrigation contaminants while still providing controlled water release to the root zone.
Solution Approach 2:
The patent replaces the mechanical pressurized delivery system with a gravity-based flow system. Instead of using pumps and pressure regulators to force water through small emitters, the system uses gravity to drive water through large seep holes, eliminating the mechanical components that create clogging points while maintaining effective water distribution.
2Productivity
If traditional irrigation systems are used, then water can be delivered to plants, but energy consumption increases due to pressurized systems
Solution Approach 1:
The patent eliminates the need for mechanical pressurized systems by substituting gravity as the driving force for water delivery. This substitution removes pumps, motors, and pressure control mechanisms, reducing energy consumption to minimal levels while maintaining effective water delivery to the plant root zone through gravity-driven flow through the seep holes.
Solution Approach 2:
The irrigation system becomes self-servicing by using gravity to automatically deliver water without external energy input. The system self-regulates flow rates and distribution patterns through the gravity-driven flow through seep holes, eliminating the need for external power sources or complex control systems.
3Productivity
If surface irrigation methods are used, then water can be applied to the landscape, but water is lost to evaporation and deep percolation
Solution Approach 1:
The patent transitions from two-dimensional surface irrigation to three-dimensional subsurface irrigation by placing the seep hole conduit system below the soil surface. This dimensional change allows water to be delivered directly to the root zone depth, preventing surface evaporation losses and controlling deep percolation through the engineered subsurface placement and gravity-driven flow characteristics.
Solution Approach 2:
The patent changes the delivery parameter from surface-level application to subsurface delivery at specific depths. By positioning the seep holes at optimal depths and using gravity-driven flow, the system achieves precise control over water placement in the root zone, minimizing both evaporation and deep percolation losses while maintaining effective water application.
4Adaptability or versatility
If untreated greywater with high turbidity is used, then water resource utilization is improved, but the irrigation system becomes clogged
Solution Approach 1:
The patent fundamentally changes the emitter size parameter from small orifices (e.g., 0.01-0.1 inch) to large seep holes (e.g., 0.5-1 inch diameter). This parameter change makes the system tolerant of high turbidity and contaminants found in untreated greywater, as the large openings cannot be clogged by typical irrigation contaminants while still providing effective water distribution.
Solution Approach 2:
The patent creates a universal irrigation system that can handle multiple water types including clean water, treated greywater, and untreated greywater without requiring different emitter designs or filtration systems. The large seep hole configuration provides multi-functionality by accommodating various water qualities while maintaining reliable operation, eliminating the need for separate systems for different water sources.
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 apparatus achieves high water utilization efficiency, prevents deep percolation, reduces weed growth, and manages water tables effectively, using untreated greywater and stormwater, while eliminating the need for pressurized systems and reducing energy consumption.
Implementation Method 1
creating a capillary moisture plume or a moisture zone (6) starting at the top of the saturated zone (5) and continuing several inches above said saturated zone
Implementation Method 2
allow gravity-driven water flow
Data Source
AI summary
This invention is related to a gravity flow, multipurpose bidirectional nonpressurized climate smart subirrigation conduit apparatus for managing soil moisture and growing plants. The subirrigation conduit apparatus creates a suspended virtual water table at the desired buried depth, thus creating an anaerobic saturated zone and a capillary fringe. The capillary fringe is described in the art as a moisture zone that has perfect air and moisture mixture for plant growth, can also be used to irrigate with high turbidity obstruction liquids such as precipitation runoff and alternative waters such as untreated greywater. When too much water is present within the landscape, the Multipurpose bidirectional nonpressurized climate smart subirrigation conduit apparatus can be used in reverse flow to drain the landscape. Bidirectional nonpressurized flow is achieved by gravity water equalization thus cutting any need for energy consumption.