In-situ remediation system for volatile organic compounds with deep recharge mechanism

A method for the treatment and remediation of a contaminated aquifer in the presence of an uncontaminated aquifer comprising:

• inserting a cylindrical well pipe having well screens through an upper aquifer and into a lower aquifer;
• inserting an inner cylindrical pipe into said well pipe a distance sufficient to place its bottom end below the water level of the lower aquifer and its top end above the static water level of the upper aquifer, wherein the cylindrical well pipe and the inner cylindrical pipe are concentric;
• sealing the annular space between the inner cylinder and the well pipe so as to separate said upper and lower aquifers;
• introducing a stream of air beneath the static water level of the contaminated aquifer sufficient to lift the water and cause a flow over the top of said inner cylinder;
• and
• venting the vapor from a headspace above said inner cylinder.

A method for treating and reclaiming water in a contaminated aquifer comprising:

• inserting a cylindrical well pipe having upper and lower well screens into an aquifer;
• inserting an inner cylindrical pipe into said well pipe a distance sufficient to place the bottom end at or about the level of the lower well screen and the top above the static water level of the aquifier, wherein the cylindrical well pipe and the inner cylindrical pipe are concentric;
• sealing an annular space between the wellbore and the inner cylinder at a height between the two well screens;
• introducing a stream of pressurized air into one of said the annular spaces above the seal and the lower portion of said inner cylinder at rate so as to lift the water and cause it to flow over the top of said inner cylinder;
• and
• venting the headspace above the inner cylinder.