Porous Cyanobacteria Suppression Composition Using Microbial Competition

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Solution Overview

Problem

Current methods for controlling harmful algal blooms (HABs/HCBs) involve toxic algicides like hydrogen peroxide and copper, which pose handling risks and can release cyanotoxins, and there is a need for non-toxic, effective solutions to limit cyanobacterial growth at the source.

Innovation Solution

A cyanobacteria suppression composition comprising a porous body with a growth-promoting agent, such as glucose, loaded into its pores, coated with a biodegradable material to promote competitive microorganisms, suppressing cyanobacterial growth without releasing toxins.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If toxic algicides (hydrogen peroxide, copper) are used to kill cyanobacteria, then cyanobacterial growth is suppressed, but handling safety deteriorates and cyanotoxin release increases

Engineering Contradiction:

Improvecyanobacterial growth suppressionVSAvoidhandling toxicity and cyanotoxin release

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Instead of killing cyanobacteria with toxic algicides, the invention promotes the growth of beneficial microorganisms that compete with cyanobacteria for resources. This inverted approach suppresses cyanobacterial growth through competition rather than direct killing, avoiding toxin release and handling hazards.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The invention converts the harmful effect of cyanobacteria into a benefit by using their resource requirements as a target. By providing nutrients that selectively promote beneficial microorganisms which then compete with cyanobacteria, the system transforms the problem of cyanobacterial overgrowth into a mechanism for their suppression through ecological competition.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Productivity

If algicides are applied to control harmful algal blooms, then cyanobacteria are killed, but environmental safety deteriorates due to toxin release and ecosystem damage

Engineering Contradiction:

Improvebloom control effectivenessVSAvoidenvironmental contamination and ecosystem damage

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The invention introduces beneficial microorganisms as intermediaries between the applied nutrients and the cyanobacteria. These microorganisms receive the nutrients and compete with cyanobacteria for resources, acting as a mediator that suppresses blooms without directly killing cyanobacteria or releasing toxins.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system uses naturally occurring beneficial microorganisms that already exist in the water body. By adding growth-promoting agents, the system enables these microorganisms to self-organize and compete with cyanobacteria, eliminating the need for direct application of biocides and reducing environmental impact.

Inventive Principle:

Principle #25Self-service

3Productivity

If high concentrations of nitrogen and phosphorous are added to water, then cyanobacteria flourish, but harmful algal blooms increase

Engineering Contradiction:

Improvecyanobacteria growth rateVSAvoidharmful algal bloom formation

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The invention changes the local quality of nutrient distribution by providing growth-promoting agents that selectively benefit beneficial microorganisms rather than cyanobacteria. This creates localized conditions that favor competition from beneficial species, altering the nutrient competition dynamics in the water body.

Inventive Principle:

Principle #3Local quality

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 composition effectively suppresses cyanobacterial growth by promoting competitive microorganisms, preventing toxin production and avoiding environmental contamination, with reusable, non-toxic, and biodegradable materials.

Implementation Method 1

immersing at least a portion of the porous body into the solution; allowing the pores of the porous body to absorb an amount of the solution

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS20260007132A1Method of preparing cyanobacteria suppression composition

Publication Date: 2026.01.08 ENVIRONMENTAL PROTECTION AGENCY US

AI summary

A method of preparing a cyanobacteria suppression composition includes the steps: (a) providing a porous body including a plurality of pores; (b) providing a solution including a growth promoting agent effective to promote growth of microorganisms that compete with cyanobacteria for resources; (c) immersing at least a portion of the porous body into the solution; (d) allowing the pores of the porous body to absorb an amount of the solution; and (e) drying the porous body containing the growth promoting agent to remove excess moisture so as to provide the cyanobacteria suppression composition, which is effective to suppress growth of cyanobacteria.