Intermittent Magnetisation Reactor for Algae Control
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Solution Overview
Problem
Current non-traditional biomanipulation methods using silver carp and bighead carp are ineffective in digesting cyanophyta, leading to a high return of undigested algae cells to the water ecosystem, which rapidly reproduce, causing ecological imbalances in water environments.
Innovation Solution
Introducing filter-feeding fishes like silver carp and bighead carp into water bodies and applying intermittent magnetic fields of 50mT to 2,000mT to premagnetize the water, altering the physical and chemical properties of water molecules, thereby inhibiting algae cell activity and improving fish digestion and survival rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If filter-feeding fishes (silver carp and bighead carp) are used to control phytoplankton, then the phytoplankton including bacillariophyta, chrysophyta, cryptophyta can be effectively eliminated, but the digestion utilisation rate on cyanophyta is very low and undigested cyanophyta rapidly return to water ecosystem
Solution Approach 1:
The patent applies magnetic field treatment to change the physical and chemical parameters of cyanophyta cells, making them more susceptible to digestion by filter-feeding fishes. The magnetic field alters cell structure and composition, transforming cyanophyta from a hard-to-digest state to a more digestible state, thereby resolving the low digestion utilisation rate problem while maintaining high phytoplankton elimination efficiency
Solution Approach 2:
The magnetic field acts as an intermediary that modifies cyanophyta properties before they enter the fish digestive system. By pre-treating cyanophyta with magnetic fields, the patent creates a bridge between the fish's natural filtering capability and their ability to effectively digest cyanophyta, enabling the fish to process all types of phytoplankton including previously indigestible cyanophyta
2Reliability
If magnetic field treatment is applied to water body, then algae cell activity is inhibited and fish digestion is improved, but additional equipment and operational complexity are required
Solution Approach 1:
The patent employs intermittent magnetic field treatment rather than continuous treatment. The magnetic field is applied periodically at specific intervals, which is sufficient to achieve the desired algae inhibition and digestion improvement effects. This periodic approach reduces equipment runtime and energy consumption while maintaining treatment effectiveness, thereby lowering operational complexity compared to continuous treatment systems
Solution Approach 2:
The magnetic field treatment is applied preliminarily to water bodies before phytoplankton outbreaks occur or at early stages. This preventive approach prepares the water environment by inhibiting algae cell activity in advance, making subsequent fish digestion more effective. By acting beforehand, the system avoids the need for more complex intensive treatment equipment that would be required for severe outbreaks
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 method significantly reduces phytoplankton growth by inhibiting electron transport in algae cells, enhances fish digestion and survival, and reduces bacterial reproduction, thereby controlling algae outbreaks and maintaining ecological balance.
Implementation Method 1
arranging an electromagnetic type magnetisation reactor in a direction perpendicular to water flow in the area to carry out intermittent magnetisation
Implementation Method 2
inhibiting electron transport in algae cells
Implementation Method 3
carrying out premagnetisation on a water body entering the area; altering the physical and chemical properties of water molecules
Data Source
AI summary
The present invention relates to the field of water environment treatment, and particularly discloses a method for treating phytoplankton by non-traditional biomanipulation. The method comprises: introducing filter-feeding fishes into an area where the to-be-treated phytoplankton is located, carrying out premagnetisation on a water body entering the area, and then arranging an electromagnetic type magnetisation reactor in a direction perpendicular to water flow in the area to carry out intermittent magnetisation on the water body, wherein the magnetic field intensity is 50mT to 2000mT, an intermittent period is 3h to 240h, and the one-time magnetisation time is 5min to 300min. According to the method, the activity of algae cells can be inhibited and the activities of amylase and plant cellulase in digestive systems of the filter-feeding fishes can be improved so as to improve the digestibility of algae and promote metabolism of the fishes; and meanwhile, reproduction of bacteria can also be inhibited, and decomposition of fish faeces by the bacteria is reduced, so that the secondary outbreak of the algae is avoided.