Non-thermal Plasma Electrode for Agricultural Treatment
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Solution Overview
Problem
The agricultural industry faces challenges with energy-intensive ammonia-based fertilizers that contribute to pollution and inefficiencies in nitrogen delivery to plants, as well as limitations in treating both seeds and water using existing plasma technologies.
Innovation Solution
A non-thermal air or gas plasma system with a novel electrode configuration treats liquids, seeds, and growth media, producing reactive oxygen and nitrogen species (ROS and RNS) that can be directly applied to plant roots, eliminating the need for chemical fertilizers and enhancing germination and growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If ammonia-based fertilizers are used to provide nitrogen to plants, then nitrogen availability is improved, but energy consumption and environmental pollution increase
Solution Approach 1:
The patent replaces the chemical ammonia-based fertilizer system with a plasma-based nitrogen delivery system. The plasma generator creates reactive nitrogen species (NO, NO2, NO3) through electrical discharge in air, eliminating the need for energy-intensive Haber-Bosch ammonia production and subsequent nitrification processes. This substitution of chemical fertilizer with plasma treatment directly addresses both nitrogen availability and energy consumption contradictions.
Solution Approach 2:
The patent changes the chemical form of nitrogen delivery from stable ammonia compounds to reactive nitrogen species generated in plasma state. By transforming nitrogen from inert atmospheric gas into reactive forms (NO, NO2, NO3) through plasma treatment, the system enables direct plant uptake without requiring energy-intensive chemical conversion processes, thus resolving the energy consumption issue while maintaining nitrogen availability.
2Quantity of substance
If ammonia-based fertilizers are used to provide nitrogen to plants, then nitrogen availability is improved, but environmental pollution increases
Solution Approach 1:
The patent replaces the chemical ammonia-based fertilizer system with a plasma-based nitrogen delivery system. The plasma generator creates reactive nitrogen species (NO, NO2, NO3) through electrical discharge in air, eliminating the need for energy-intensive Haber-Bosch ammonia production and subsequent nitrification processes. This substitution of chemical fertilizer with plasma treatment directly addresses both nitrogen availability and energy consumption contradictions.
Solution Approach 2:
The patent converts inert atmospheric nitrogen gas, which would otherwise be unused, into valuable reactive nitrogen species through plasma treatment. This transforms waste atmospheric nitrogen into a beneficial nitrogen source for plants, eliminating the need for harmful synthetic ammonia fertilizers and their associated environmental pollution from production and application processes.
3Adaptability or versatility
If multiple plasma devices are used to treat both seeds and water, then treatment versatility is improved, but device complexity and cost increase
Solution Approach 1:
The patent designs a single plasma generator system that can treat multiple types of agricultural materials including seeds, water, and growth media. The system uses removable sub-assemblies that can be configured for different treatment modes (wet plasma for water, dry plasma for seeds), providing multi-functionality in a single device platform. This eliminates the need for separate plasma devices for different treatments, reducing overall system complexity while maintaining versatility.
Solution Approach 2:
The patent divides the plasma treatment system into modular components with removable sub-assemblies. The core plasma generator remains stationary while treatable materials are placed in removable chambers or containers. This segmentation allows the same plasma source to serve multiple functions (water treatment, seed treatment, growth media treatment) by simply changing the removable sub-assembly, thereby achieving versatility without proportionally increasing device complexity.
4Ease of operation
If traditional irrigation methods are used, then water delivery is simplified, but nitrogen loss and waste increase
Solution Approach 1:
The patent replaces traditional chemical fertilizer application with plasma-treated water delivery. The plasma generator treats irrigation water by generating reactive nitrogen species that are directly absorbed by plant roots. This substitution eliminates nitrogen loss through runoff and evaporation associated with traditional fertilizer application, while maintaining simple water delivery through existing irrigation infrastructure.
Solution Approach 2:
The patent uses plasma-treated water as an intermediary carrier for nitrogen delivery. Instead of applying solid or liquid fertilizers that are subject to loss, the system dissolves reactive nitrogen species in water, creating a stable delivery medium that can be applied through existing irrigation systems. This intermediary approach maintains ease of operation while preventing nitrogen loss through improved delivery control and reduced environmental exposure.
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 provides a clean, efficient source of nitrogen to plants, improving germination rates, growth, and water retention while reducing environmental pollution, with minimal energy consumption and maintenance.
Implementation Method 1
A non-thermal air or gas plasma system with a novel electrode configuration treats liquids, seeds, and growth media, producing reactive oxygen and nitrogen species (ROS and RNS)
Implementation Method 2
The plasma ionizes both oxygen and nitrogen, which results in the formation of metastable nitrogen oxides which include valuable NO, NO2 and NO3 gasses
Implementation Method 3
The device includes a novel porous plasma electrode which allows water to flow through it; this maximizes the plasma / water interface and residence time that the water is exposed to the plasma
Implementation Method 4
A high voltage plasma discharge is generated using a novel electrode configuration in the presence of air or other oxygen and nitrogen containing gaseous mixtures
Data Source
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AI summary
The invention comprises an apparatus, method and system used to treat various liquids, seeds, and soil or other growth media used in cultivating plants by exposure to a plasma discharge. The system comprises a novel electrode structure which utilizes a tapered inner electrode and a porous outer electrode to create a three-dimensional plasma discharge, which is applied to liquid, seeds or growth media through removably attachable sub-assemblies. When used to treat water or seeds, highly-concentrated plasma activated water (PAW) and disease and drought resistant plasma activated seeds (PAS), respectively, are produced, which improve germination rate and efficiency, and eliminate the need for ammonia-based chemical fertilizers.