System for in situ filtration of water supply
AssigneeLoureiro Engineering Associates, Inc.
InventorMichael C. Marley
Life of this patent
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Abstract
A system for removing PFAS compounds from ground water is provided. The system allows for deployment around drinking water wells to reduce the flux of PFAS compounds reaching the well. Instead of removing contaminants from a water supply after the water has been collected, the system allows for the deployment of an adsorbent directly in the soil. The adsorbent can remove the contaminant while allowing the water to continue its flow to a drinking water source such as a municipal well. Specific areas in the aquifer feeding the well can be targeted based on the flux of target compounds through those areas. The corresponding water quality in the well will meet the applicable regulatory standards, such as EPA MCLs.
Claims15
A method of preventing the intrusion of an organic contaminant into a drinking water production well, the method comprising:
- identifying a first segment in an aquifer within 50 to 1000 feet of the drinking water production well as a segment subject to a high flux of the organic contaminant when compared to other segments in the aquifer;
- depositing colloidal carbona at low pressure in the first segment to produce a filter wall;
- drawing water from the drinking water production well;
- adsorbing organic contaminant on the filter wall while allowing water to pass through the filter wall;
- and
- ceasing operation of the drinking water production well for at least 1 day post depositing the colloidal carbon.
Dependencies are inferred from the claim text.