Ceramic Composites from Municipal Solid Waste via Hydrothermal Sintering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Municipal Solid Waste (MSW) disposal poses challenges due to the generation of methane and carbon emissions, and existing methods for hydrothermal liquid phase sintering require scarce and costly water and CO2 supplies, necessitating a sustainable solution for ceramic composition production.
Innovation Solution
A method involving the decomposition of MSW to generate a CO2-water vapor mixture, which is then used to react with a matrix containing a reactant, either directly or after absorption by a gas absorber, to produce ceramic compositions, thereby reducing environmental CO2 discharge and providing a sustainable source of CO2 and water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If municipal solid waste is decomposed to generate CO2 and water for ceramic production, then greenhouse gas emissions are reduced and a sustainable supply of CO2 and water is achieved, but the complexity of the process increases and requires specialized decomposition facilities
Solution Approach 1:
The patent converts harmful greenhouse gas emissions (CO2 and methane) from municipal solid waste decomposition into beneficial raw materials for ceramic production. The decomposition process that would normally generate harmful emissions is instead harnessed to provide the CO2 and water vapor needed for hydrothermal liquid phase sintering, transforming an environmental problem into a sustainable resource solution.
Solution Approach 2:
The patent merges two previously separate processes into an integrated system: municipal solid waste decomposition and ceramic composition production. By combining these processes, the CO2 and water vapor generated from waste decomposition are directly utilized as reactants in the ceramic sintering process, eliminating the need for separate CO2 supply systems and external water sources.
2Ease of manufacture
If water and CO2 are delivered to materials manufacturing sites for hydrothermal liquid phase sintering, then ceramic compositions can be produced, but the cost and energy requirements become prohibitively large in remote or arid regions
Solution Approach 1:
The patent enables the materials manufacturing site to serve itself by generating its own CO2 and water supplies from the decomposition of municipal solid waste on-site. This eliminates the need for external delivery systems for water and CO2, making the ceramic production process self-sufficient and particularly suitable for remote or arid regions where resource delivery would be costly and energy-intensive.
Solution Approach 2:
The patent makes municipal solid waste serve multiple functions: it is both a waste product to be disposed of and a valuable resource that provides CO2, water vapor, and potentially other components needed for ceramic production. This multi-functionality transforms waste management into a resource generation process, reducing dependence on external supply chains.
3Quantity of substance
If extensive networks of CO2 gas supply are established to support high-degree carbonation systems, then ceramic compositions requiring high carbonation can be produced, but the infrastructure cost and complexity would be extensive and unavailable in many regions
Solution Approach 1:
The patent extracts CO2 directly from municipal solid waste decomposition rather than relying on external CO2 supply networks. This extraction approach generates CO2 on-demand at the point of use, eliminating the need for extensive CO2 distribution infrastructure and making high-degree carbonation systems feasible in regions without established CO2 supply networks.
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 reduces greenhouse gas emissions and provides a cost-effective, sustainable method for producing ceramic compositions using MSW, addressing the scarcity issues of water and CO2 while utilizing MSW as a resource for construction materials.
Implementation Method 1
decomposing the municipal solid waste to generate a carbon dioxide-water vapor mixture
Implementation Method 2
contacting the carbon dioxide-water vapor mixture with a gas absorber to form a carbon dioxide-gas absorber mixture
Implementation Method 3
contacting the carbon dioxide with the matrix to promote a reaction between the carbon dioxide and the reactant of the matrix. The reaction forms a product
Data Source
AI summary
A method for preparing a ceramic composition while simultaneously reducing the quantity of carbon dioxide from municipal solid waste that would discharge into environment includes decomposing the municipal solid waste to generate a carbon dioxide-water vapor mixture, providing a matrix, the matrix containing a reactant; and contacting the carbon dioxide-water vapor mixture with the matrix to promote a reaction between the carbon dioxide of the carbon dioxide-water vapor mixture and the reactant of the matrix. The reaction forms a product, thereby producing the ceramic composition.