Wood Vinegar Composition for Algae Bloom and Odor Control
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Solution Overview
Problem
The frequency of algae blooms in freshwater, brackish, and marine environments is increasing due to climate change, leading to oxygen depletion, toxin production, and negative impacts on water enjoyment and health, while odors from decomposing organic matter in landfills are bothersome and pose health hazards, with existing preventive measures being inadequate.
Innovation Solution
A wood vinegar-containing solution is applied to control algae blooms by adjusting its composition based on water and algae conditions and to reduce odors by dispersing it over sources of decomposition, using methods like crop dusters, helicopters, and drones, with additives like carbon black to enhance effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preventive measures to limit nitrogen and phosphorus nutrients are implemented, then algae bloom frequency is reduced, but the measures are mixed in effectiveness and short-lived
Solution Approach 1:
The patent applies parameter changes by using wood vinegar-containing composition with specific pH range (2-5) and acetic acid concentration (5-75% v/v) to directly alter the chemical environment of algae blooms, causing cell membrane disruption and protein denaturation, providing immediate and sustained control rather than relying on long-term nutrient limitation
Solution Approach 2:
The wood vinegar-containing composition acts as an intermediary substance that mediates between the harmful algae bloom and the water environment. It is applied directly to affected areas and serves as a chemical agent that neutralizes algae toxins and disrupts cell structures, providing a bridging solution between prevention and remediation
2Object-affected harmful factors
If mechanical-based efforts like air bubbling are used to enhance vertical mixing, then surface bloom formation is minimized, but the approach is limited to smaller water bodies
Solution Approach 1:
The wood vinegar-containing composition is designed with universal applicability across different water body sizes and types. The composition can be scaled from small ponds to large lakes and marine environments, and can be applied through various methods including aerial spraying, boat-based dispensing, or direct injection, making it versatile for different scenarios unlike mechanical mixing which is size-limited
3Object-affected harmful factors
If water flow is increased to reduce water residence time, then cyanobacteria blooms are inhibited, but the approach is expensive and requires large-scale infrastructure
Solution Approach 1:
The patent employs a cost-effective wood vinegar-containing composition that can be applied as needed rather than requiring expensive permanent infrastructure modifications. The composition is relatively inexpensive to produce from wood feedstock and can be deployed temporarily or periodically to control blooms, avoiding the need for costly flow modification structures
Solution Approach 2:
The chemical approach using wood vinegar composition substitutes for the mechanical system of increased water flow. Instead of physically moving large volumes of water through infrastructure modifications, the chemical agent directly targets and eliminates cyanobacteria cells, achieving the same bloom inhibition goal through chemical rather than mechanical means
4Object-affected harmful factors
If wood vinegar-containing composition is applied to control algae blooms, then algae growth is inhibited and toxins are reduced, but the composition requires adjustment based on water and algae conditions
Solution Approach 1:
The patent incorporates dynamic adjustment capabilities where the wood vinegar-containing composition can be modified based on real-time water quality parameters and algae species identification. The pH, acetic acid concentration, and additional additives can be adjusted dynamically to match the specific conditions of different bloom events, optimizing effectiveness for each scenario
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 solution effectively inhibits algae growth, reduces odor emissions, and addresses environmental and health issues by minimizing eutrophication and odor production, promoting seed germination, and treating plant diseases.
Implementation Method 1
applying the wood vinegar-containing solution to the surface of a body of water and inhibiting growth of the algae responsible for the algae bloom
Implementation Method 2
reducing the release of malodorous gases from numerous sources including sulfide gases such as hydrogen sulfide
Data Source
AI summary
A method of controlling odor where the odor is generated by sources like decomposing organic matter in landfills or other sources is provided. A wood vinegar-containing solution, adjusted for the source of the odor, can be applied to the source of the odor. A method of improving the rate and completeness of settling of fine clays from oil sands tailings is also provided. Additional disclosure of a method of controlling algae bloom in a body of water is disclosed. The method includes the steps of providing a wood vinegar-containing solution, adjusting the composition of the wood vinegar-containing solution according to the states of both the body of water and the algae, respectively, then applying the wood vinegar-containing solution to the surface of a body of water, and inhibiting growth of the algae responsible for the algae bloom.

