Floating Aquatic Plant Hydroponics With Ozone and Level Control
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Solution Overview
Problem
Existing hydroponic systems for cultivating floating aquatic plants, such as duckweed, face challenges in maintaining consistent and efficient production with minimal labor, waste, and environmental impact, particularly in ensuring optimal growth conditions and microbial control.
Innovation Solution
A modular and scalable hydroponic system with vertically stacked trays, automated media and water management, and ozonation, utilizing sonar-based sensors for level control, LED lighting, and centralized software for autonomous operation, ensuring consistent nutrient and chemical dosing, and ozone treatment to maintain a healthy growth environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual hydroponic systems are used for cultivating aquatic plants, then labor requirements are high, but automation reduces operational complexity
Solution Approach 1:
The system is divided into modular components including vertically stacked trays, separate media reservoir, independent sensor units for each tray, and modular harvesting mechanisms. Each module can be independently controlled and maintained, reducing overall system complexity while enabling automation.
Solution Approach 2:
The automated control system performs multiple functions including media level monitoring, media exchange control, harvesting coordination, and growth condition optimization through a single centralized platform. This multi-functionality reduces the need for separate manual operations for each task.
2Manufacturing precision
If media levels in trays are not precisely controlled, then plant growth consistency deteriorates, but implementing level control increases system complexity
Solution Approach 1:
Sonar-based sensors continuously monitor media levels in each tray and provide real-time feedback to the automated control system. The system automatically adjusts media exchange operations based on this feedback to maintain precise, consistent media levels across all trays, ensuring uniform plant growth conditions.
Solution Approach 2:
Traditional mechanical level sensors or manual measurement methods are replaced with sonar-based sensing technology. This substitution provides more precise, contactless measurement of media levels while simplifying the control mechanism through automated electronic regulation rather than manual intervention.
3Reliability
If microbial control measures are implemented, then growth environment quality improves, but system complexity and operational steps increase
Solution Approach 1:
The system performs preliminary ozonation treatment of the fluent media in the reservoir before it is distributed to the growing trays. This advance disinfection action ensures microbial control is established before plants are exposed to the media, maintaining a healthy growth environment without requiring continuous complex intervention during the growth cycle.
4Productivity
If vertically stacked trays are used to increase production density, then space utilization improves, but media distribution and harvesting complexity increases
Solution Approach 1:
The system uses hydraulic principles to control media flow through the vertically stacked trays. Automated valves and pumps regulate the distribution of fluent media to each tray level and facilitate easy harvesting by controlling media drainage, simplifying the management of vertical stacking while maintaining high production density.
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
Enables continuous, high-yield, and low-waste production of nutritious aquatic plants with minimal labor, maintaining optimal growth conditions and microbial control, suitable for urban and space applications.
Implementation Method 1
The automated control system may include a sonar-based sensor associated with each tray for determining the level of media within the tray
Implementation Method 2
The hydroponic system includes an ozone generator and an ozone diffuser submerged within media in the media reservoir for sterilizing the media within the media reservoir with ozone
Data Source
AI summary
A hydroponic system for cultivation and harvesting of floating aquatic plants is provided. The hydroponic system includes an arrangement of a plurality of vertically-stacked cultivation trays, each tray containing an amount of fluent media on which floating aquatic plants are able to grow. The hydroponic system also includes a media reservoir in which fluent media is contained and subject to treatment before being circulated to the cultivation trays and a harvesting reservoir for receiving aquatic plants grown in the cultivation trays and harvested from the same. The hydroponic system further includes an automated control system that manages media flow into and from the trays and aquatic plant harvesting from the trays. A method of cultivating and harvesting floating aquatic plants is also provided.