Functionalized Polysaccharide Biopolymers for Mining Dust Control
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Solution Overview
Problem
Current dust control methods in mining and animal litter applications are inadequate, as they often involve harmful chemicals, water scarcity issues, and environmental damage, and fail to provide long-lasting solutions, especially in cold climates.
Innovation Solution
The use of functionalized polysaccharide biopolymers, such as dextran and other polysaccharides with amine and alkyl moieties, mixed with an aqueous liquid and applied to dust-generating areas to effectively suppress dust and odor, offering a biocompatible, non-toxic, and environmentally safe solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is used for dust control, then dust suppression is achieved, but water consumption increases and environmental damage occurs
Solution Approach 1:
The patent changes the chemical parameters of the dust control agent from water (H2O) to functionalized polysaccharide biopolymers with specific amine and alkyl group compositions. These polymers have optimized molecular weights (10,000-1,000,000 Da) and functional group ratios that enable effective dust suppression with reduced water consumption, directly resolving the contradiction between dust control effectiveness and water usage.
Solution Approach 2:
The invention uses composite biopolymer structures combining polysaccharide backbones with grafted amine and alkyl functional groups. This composite structure provides both the water-solubility needed for dust suppression and the hydrophobic interactions that reduce overall water consumption, while the biodegradable nature prevents environmental damage associated with conventional chemical dust suppressants.
2Object-affected harmful factors
If conventional chemical dust suppressants are used, then dust control effectiveness is improved, but environmental harm and toxicity increase
Solution Approach 1:
The patent converts the typically harmful chlorinated and sulfonated chemical structures into beneficial biodegradable polysaccharide structures with amine and alkyl functional groups. These functional groups provide effective dust suppression through hydrogen bonding and hydrophobic interactions, while the natural biopolymer backbone ensures environmental compatibility and biodegradability, transforming potential environmental hazards into beneficial properties.
Solution Approach 2:
The invention employs biodegradable polysaccharide polymers that naturally decompose after performing their dust suppression function. This disposable approach eliminates long-term environmental accumulation and pollution issues associated with conventional chemical suppressants, while the low cost of natural polysaccharide feedstocks makes the solution economically viable.
3Duration of action of moving object
If traditional dust control methods are used, then immediate dust suppression is achieved, but long-lasting control is not provided
Solution Approach 1:
The patent achieves continuous dust suppression through the unique properties of functionalized polysaccharide biopolymers. The amine and alkyl functional groups continuously interact with dust particles through hydrogen bonding and hydrophobic forces, providing sustained control over time. The polymer's molecular structure (10,000-1,000,000 Da) ensures adequate residence time on surfaces while maintaining active dust-suppressing functionality throughout the service period.
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
This approach provides long-lasting dust control, reduces water usage, and is environmentally friendly, maintaining effectiveness across varying temperatures without harming the environment or equipment, while being safe for handling and disposal.
Implementation Method 1
providing a composition comprised of a polymer containing one or more amine and/or alkyl moieties; mixing the composition with an aqueous liquid to form a mixture; and applying the mixture to an area that generates dust
Data Source
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AI summary
The present invention is directed to compositions and methods for dust control in particular in industrial operations such as mining. More particularly, the dust controlling agents are functionalized polysaccharides, partially oxidized polysaccharides that may or may not also be functionalized, or salts thereof.