Method for monitoring remediation of non aqueous phase solution
OwnerRaj Mahadevaiahinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for remediation of non-aqueous phase liquids (NAPL), including the use of a prior art hydrophobic adsorption system including a continuous loop of adsorptive material, with a weighted pulley on the free end of the loop to allow for the loop to be placed within a well being deeper than it is wide.
Claims10
A method for detecting an increase in the amount of a non-aqueous phase liquid during a process for remediating a layer of non-aqueous phase liquids from a surface of water in an environment, the method comprising:
- determining an elevation of said surface of said water and a thickness of said layer of non-aqueous phase liquids at a plurality of discrete times;
- recording data corresponding to said elevation of said water surface and to said thickness of said layer of non-aqueous phase liquids at said plurality of discrete times;
- sorting said data to develop a set of water surface elevation measurements for thicknesses of said layer of said non-aqueous phase liquids greater than a predetermined minimum thickness;
- querying said data to determine a most persistent elevation of said water surface as measured within a predetermined deviation range;
- sorting said thickness measurements of said layer of said non-aqueous phase liquids corresponding to said most persistent measured elevation of said water surface;
- plotting the thickness of said layer of said non-aqueous phase liquids corresponding to each of said most persistent measured elevations of said water surface as a function of time;
- examining each of said plotted thicknesses of said layer of said non-aqueous phase liquids for increases over a previous plotted thickness of said layer of said non-aqueous phase liquids;
- and
- indicating an increase in the amount of said non-aqueous phase liquids within said layer when an increase in a plotted thickness of said layer of said non-aqueous phase liquids occurs.
A method for estimating a completion time for a remediation process of a layer of non-aqueous phase liquids from a surface of water in an environment, the method comprising:
- determining an elevation of said surface of said water and a thickness of said layer of non-aqueous phase liquids at a plurality of discrete times;
- recording data corresponding to said elevation of said water surface and to said thickness of said layer of non-aqueous phase liquids at said plurality of discrete times;
- sorting said data to develop a set of water surface elevation measurements for thicknesses of said layer of said non-aqueous phase liquids greater than a predetermined minimum thickness;
- querying said data to determine a most persistent elevation of said water surface as measured within a predetermined deviation range;
- sorting said thickness measurements of said layer of said non-aqueous phase liquids corresponding to said most persistent measured elevation of said water surface;
- plotting the thickness of said layer of said non-aqueous phase liquids corresponding to each of said most persistent measured elevations of said water surface as a function of time;
- examining each of said plotted thicknesses of said layer of said non-aqueous phase liquids for a downward trend in said plotted thicknesses of said layer of said nonaqueous phase liquids;
- projecting from said downward trend when said thickness of said nonaqueous phase liquids will reach near zero;
- and
- estimating the completion time for said remediation based on a duration for said thickness of said layer of said non-aqueous phase liquids to reach near zero.
Dependencies are inferred from the claim text.