Halogen-Sulfur Sorbent for Mercury Stabilization
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Solution Overview
Problem
Current remediation technologies for environmental pollutants like mercury are costly, time-consuming, and face challenges in reducing bio-availability and mobility, especially in complex contaminated sites with varying pollutant forms and conditions.
Innovation Solution
The use of sorbents containing halogen and sulfur, such as activated carbon with bromine and sulfur, which are applied to substances to reduce the environmental availability of pollutants by adsorption, stabilization, and degradation, thereby minimizing migration and bio-accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current remediation technologies (stabilization/solidification, washing, thermal desorption, vitrification) are applied to reduce environmental availability of pollutants, then the environmental and bio-availability of pollutants is reduced, but the process becomes costly and time-consuming
Solution Approach 1:
The patent employs disposable sorbent materials (such as activated carbon, biochar, or other carbon-based materials) that are added to contaminated substances to adsorb pollutants. These sorbents are inexpensive, single-use materials that capture contaminants through adsorption, then are removed and disposed of, avoiding the need for expensive, time-consuming industrial processes like thermal desorption or vitrification while achieving effective pollutant reduction.
2Reliability
If remediation processes are applied to complex contaminated sites with varying pollutant forms and conditions, then pollutant stabilization is achieved, but the process complexity increases due to site variability
Solution Approach 1:
The patent employs universal sorbent materials (particularly carbon-based sorbents like activated carbon and biochar) that can adsorb multiple types of pollutants including mercury, organic contaminants, and heavy metals regardless of their chemical form or environmental conditions. This multi-functional approach allows the same basic sorbent material to effectively treat diverse contaminated sites without requiring complex, site-specific process modifications, thereby reducing overall process complexity while maintaining effective pollutant stabilization.
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 effectively reduces the environmental and bio-availability of mercury and other pollutants, enhancing existing remediation methods by stabilizing and immobilizing pollutants, thus reducing health and ecological risks.
Implementation Method 1
The use of sorbents containing halogen and sulfur, such as activated carbon with bromine and sulfur, which are applied to substances to reduce the environmental availability of pollutants by adsorption
Implementation Method 2
Adding and/or applying the sorbent containing halogen and sulfur to the pollutant-containing substance reduces the environmental availability of at least a portion of one or more environmental pollutants in the substance
Data Source
AI summary
This invention provides processes for reducing the environmental availability of one or more environmental pollutants in solids, liquids, and combinations of solids and liquids.