Hydroponic System Pathogen Control via Segmented Water Reservoirs
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Solution Overview
Problem
Current hydroponic systems face challenges in rapidly growing vegetables, particularly in controlling pests, bacteria, and fungi, which can cause extensive damage, and in optimizing light and water quality for efficient crop production.
Innovation Solution
A method involving floating trays with a matrix of cells, where seeds are germinated in a humid environment and then transferred to a production pond with controlled water quality and light exposure, including UV filtration and pasteurization, to minimize pathogenic microbes and optimize growth parameters such as CO2 levels and light spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is continuously circulated in hydroponic systems, then nutrient distribution is improved, but waterborne pathogens can spread and cause extensive damage
Solution Approach 1:
The system divides the water circulation into separate zones: a first water reservoir for clean nutrient solution and a second water reservoir for used solution. This segmentation prevents pathogens from spreading throughout the entire system while maintaining continuous circulation in each zone.
Solution Approach 2:
A heat exchanger serves as an intermediary device between the two water reservoirs. It allows thermal energy transfer and pathogen elimination without direct water mixing, enabling safe water management while maintaining system productivity.
2Productivity
If water temperature is increased to accelerate crop growth, then growth rate improves, but pathogen proliferation is enhanced
Solution Approach 1:
The system applies periodic thermal treatment to the water in the second reservoir, heating it to high temperatures for pathogen elimination, then allowing it to cool before returning to the first reservoir. This periodic action eliminates pathogens while maintaining optimal growth temperatures during crop cultivation.
Solution Approach 2:
The system utilizes phase transition of water through heating to high temperatures for sterilization, then cooling back to optimal growth range. This phase transition approach effectively kills pathogens while preserving the water for continued crop nutrition.
3Productivity
If light exposure is increased to enhance photosynthesis, then crop yield improves, but energy consumption increases
Solution Approach 1:
The system merges natural light from windows with supplemental artificial lighting. This combination maximizes photosynthetic efficiency while minimizing artificial energy consumption by utilizing available natural light resources.
Solution Approach 2:
The lighting system dynamically adjusts artificial light intensity based on natural light availability and crop growth stage. This dynamic control optimizes energy usage by providing supplemental light only when and where needed.
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 method enables rapid vegetable growth with improved taste and palatability, reducing crop loss from pathogens and enhancing yield by maintaining optimal growth conditions and minimizing waterborne pathogens through regular water refreshment and filtration.
Implementation Method 1
The water is filtered through a UV filter
Implementation Method 2
The water is pasteurized
Implementation Method 3
providing light to the plurality of floating trays on a daily basis while the plants are growing
Data Source
AI summary
A method together with enabling apparatuses is disclosed for the rapid controlled growth of vegetable and similar crops in a hydroponic system. The method includes control of light, minimization of exposure to pathogens, control of temperature of ambient air and the water in the system, nutrients, pH and other growth factors such as transfer between ponds as well as specially designed floating flats and related devices.