Ultrasonic Algae Control System with Multi-Directional Transducers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for controlling algae in bodies of water, such as nutrient management, chemical introduction, and ultraviolet light, are either impractical or ineffective for large areas and can harm other aquatic life, while existing ultrasonic technologies are limited by power requirements and coverage.
Innovation Solution
An algae control system that emits targeted ultrasonic waves at specific frequencies to cause critical structural resonance in algae and microorganisms, using a power supply unit and transducer unit configured for multiple directional coverage, including piezoelectric crystals and amplifier plates to ensure effective sound pressure across frequency bands, with a processor for programmable control and remote operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultraviolet light is used to control algae, then single cell algae can be killed, but filamentous algae are not affected and power requirements are high
Solution Approach 1:
The patent replaces the ultraviolet light-based electromagnetic system with an ultrasonic acoustic system. The ultrasonic transducer generates mechanical vibrations at frequencies that resonate with algae structures, causing internal damage and cell rupture. This mechanical vibration approach eliminates the need for high-power UV lamps and pumping systems, significantly reducing energy consumption while effectively controlling both single-cell and filamentous algae that were resistant to UV treatment.
Solution Approach 2:
The patent changes the operating parameter from ultraviolet light frequency to ultrasonic frequency ranges (20 kHz to 200 kHz). By tuning the ultrasonic frequency to match the resonant frequencies of different algae types, the system achieves effective control across various algae species including filamentous green algae and blue-green algae, while operating at lower power levels compared to UV systems.
2Reliability
If chemicals are introduced to control algae, then algae growth is controlled, but other aquatic life is harmed
Solution Approach 1:
The patent converts the harmful chemical treatment approach into a beneficial physical treatment using ultrasonic waves. The ultrasonic energy selectively targets algae through resonance and cavitation effects, damaging algae cell walls and membranes while leaving other aquatic organisms unharmed. This transforms a harmful chemical control method into a safe physical method that preserves the ecological balance of the water body.
3Use of energy by moving object
If ultrasonic waves are emitted in one direction, then power consumption is reduced, but coverage area is limited
Solution Approach 1:
The patent divides the ultrasonic emission into multiple directional segments using separate transducers oriented at different angles (e.g., 0 degrees, 45 degrees, 90 degrees, 135 degrees). Each transducer covers a specific sector, and together they provide comprehensive 360-degree coverage. This segmentation allows the system to maintain directional efficiency of individual transducers while achieving broad overall coverage of the water body.
Solution Approach 2:
The patent merges multiple ultrasonic transducers into a single integrated system. By combining the output of several transducers positioned at different orientations, the system achieves omnidirectional coverage that would be impossible with a single transducer. The merged system maintains the power efficiency of individual directional transducers while providing comprehensive area coverage through coordinated operation.
4Reliability
If multiple frequencies are used to control different algae types, then control effectiveness increases, but device complexity increases
Solution Approach 1:
The patent designs a universal ultrasonic transducer system that can effectively control multiple types of algae (green algae, blue-green algae, filamentous algae) using a standardized transducer configuration. The system achieves multi-functionality by utilizing the natural resonant frequency differences of different algae types rather than requiring specialized transducers for each algae species. A single transducer or small array can be tuned to address various algae types, reducing device complexity while maintaining broad effectiveness.
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 efficient and targeted control of algae and microorganisms across large areas with minimal energy consumption, maintaining consistent sound pressure and increasing the range of control effectiveness, while being environmentally friendly and safe for aquatic life.
Implementation Method 1
emits ultrasonic waves at frequencies that cause internal critical structural resonance within the organisms to be controlled
Implementation Method 2
frequencies that cause internal critical structural resonance within the organisms to be controlled
Implementation Method 3
The crystal is sandwiched between two amplifier plates that are separated by a small gap and that are configured to radiate ultrasonic waves
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Apparatus for controlling algae and bio-organisms in bodies of fluids (102), such as water. The algae control system (100) includes a power unit (122) and a transducer unit (110) that includes a sonic head (114) that radiates in multiple directions. The power unit (122) connects to various power sources, including a mains supply connection (202), a solar panel array (124), and/or a battery (222). The power unit (122) is electrically connected to the transducer unit (110). The sonic head (114) includes a driver (216) and a transducer subassembly (224). The driver (216) excites the transducer subassembly (224) to emit ultrasonic waves at various frequencies in the water (102) surrounding the sonic head (114). Emissions at a high density of frequencies are enabled by the transducers (214). The frequencies include the critical structural resonant frequency for each microorganism to be controlled. The power unit (122) and driver (216) each include a processor (610, 232) in communication with each other. The processors (610, 232) store and execute a program for a selected application configuration.