Apparatus for purification of contaminated groundwater

• US 4,608,163 A
• Filed: 04/03/1985
• Issued: 08/26/1986
• Est. Priority Date: 01/13/1984
• Status: Expired due to Term

• Current Assignee: Karl M. Kyriss, Thomas L. Yohe
• Original Assignee: Karl M. Kyriss, Thomas L. Yohe
• Inventors: Kyriss, Karl M., Yohe, Thomas L.
• Primary Examiner(s): WYSE, THOMAS G
• Application Number:
  US06/719,549
• Time in Patent Office: 510 Days
• Field of Search: 210/748, 210/757, 210/765, 210/901, 210/170, 210/194, 210/150, 210/151
• US Class Current: 210/150
• CPC Class Codes: C02F 1/645 Devices for iron precipitation and treatment by air
• CPC Class Codes: C02F 1/72 by oxidation C02F1/4672 takes precedence
• CPC Class Codes: E02D 31/00 Protective arrangements for foundations or foundation structures protective casings for piles E02D5/60; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution spillage retaining means for tanks B65D90/24

Abstract

A domestic well water system, rendered unusable by volatile contaminants in the groundwater, can be restored to use by installing an aerator in a flow path such that water is continuously pumped, by the existing well pump, out of the well, through the aerator, and back to the well through the well head. Water is diverted from this flow path for use. The well serves as a storage device, and water returned from the aerator to the well mixes with water in the well and serves as a buffer to encroachment by contaminated groundwater.

Claims

1. In a domestic water supply system comprising a well having a well head, an improved water delivery and purification system comprising:

a water treatment unit, said water treatment unit comprising a packed column filled with filter material;

means providing a flow path for flow of water from the well through the well head, through the water treatment unit, and back to the well through said well head;

pumping means, located in said flow path, for pumping water through said flow path; and

a water service line connected between said flow path and a point of use;

said pumping means also serving to pump water from said flow path to the point of use.

2. A system according to claim 1 in which the water treatment unit is an aerator.

3. A system according to claim 1 and means connected to the water treatment unit to cause air to flow through the water treatment unit.

4. A system according to claim 3 wherein the means comprises an air inlet located near the bottom of the water treatment unit.

5. A system according to claim 4 wherein the means causes the air to flow in a direction opposite to the said flow path of water through the water treatment unit.