Gaseous and liquid carbon dioxide (CO ) are applied to a landfill well to penetrate the landfill under rapid pressurization and depressurization repeated in cycles, with or without leachate or fluid in the well. These cycles can be repeated until the CO flows more freely down a lower pressure gradient in the well into the landfill surrounding the well screen, creating fissures in the landfill which allow methane and other gases to enter the well, thereby significantly enhancing methane and other landfill gas recovery.
Gaseous and liquid carbon dioxide (CO ) are applied to a landfill well to penetrate the landfill under rapid pressurization and depressurization repeated in cycles, with or without leachate or fluid in the well. These cycles can be repeated until the CO flows more freely down a lower pressure gradient in the well into the landfill surrounding the well screen, creating fissures in the landfill which allow methane and other gases to enter the well, thereby significantly enhancing methane and other landfill gas recovery.
An improved method of controlled energy delivery utilizing solid, liquid, and gaseous carbon dioxide (CO) into a water well and the surrounding aquifer to remove deposited material which may cause loss of capacity in wells and a variety of water quality problems. After proper study and evaluation of problems associated with a well to be treated, adequate injection of the required amount of COand energy is achieved by real-time monitoring during the injection and manipulating the phase changes in the COthat take place in the well and the aquifer.
The present invention relates to a method of removing deposits from various types of wells () including environmental recovery, water supply, horizontal, barrier, injection, recharge, and/or disposal wells (). The method includes equipping a well () with an automated energy delivering system that is attached to the well (). The energy delivering system is used to clean the surface of the well () and aquifer by supplying various types of energy to the well () and aquifer via injection lines ( and ) and an educator pipe (). A pump () is used to pump the energy through flow valves ( and ) and injection lines ( and ) and into the well (). The energy that is supplied to the well () mobilizes any deposits in the well () and aquifer and cause them to flow into and up the wellbore thereby cleaning the well () and aquifer.
The present invention relates to a method of removing deposits from various types of wells () including environmental recovery, water supply, horizontal, barrier, injection, recharge, and/or disposal wells (). The method includes equipping a well () with an automated energy delivering system that is attached to the well (). The energy delivering system is used to clean the surface of the well () and aquifer by supplying various types of energy to the well () and aquifer via injection lines ( and ) and an educator pipe (). A pump () is used to pump the energy through flow valves ( and ) and injection lines ( and ) and into the well (). The energy that is supplied to the well () mobilizes any deposits in the well () and aquifer and cause them to flow into and up the wellbore thereby cleaning the well () and aquifer.
Apparatus, Method And System Of Treatment Of Arsenic And Other Impurities In Ground Water
Gregory Miller - Socorro NM, US Neil Mansuy - Kansas City MO, US
International Classification:
C02F 1/58
US Classification:
210667000, 210722000, 210747000, 210758000
Abstract:
The invention uses apparatus, methods or systems, e.g., fine pore diffusers (), to saturate ground water with a gas, preferably oxygen, but also possibly methane, air, inert or noble gasses and/or carbon dioxide. The pore diffusers () can be in a ring of aeration injection wells () in a large concentric ring around a production well. By increasing the dissolved oxygen level in the ground water, undesirable constituents such as iron or arsenic are lowered in concentration. Methods can be employed to optimize the ground water treatment by injection of other substances, such as iron, as well as predict, model, design, monitor and maintain the treatment process.
Apparatus, Method And System Of Treatment Of Arsenic And Other Impurities In Ground Water
Gregory Miller - Socorro NM, US Neil Mansuy - Kansas City MO, US
Assignee:
Subsurface Technologies, Inc. - Rock Tavern NY
International Classification:
B01J 39/00
US Classification:
210667000
Abstract:
The invention uses apparatus, methods or systems, e.g., fine pore diffusers (), to saturate ground water with a gas, preferably oxygen, but also possibly methane, air, inert or noble gasses and/or carbon dioxide. The pore diffusers () can be in a ring of aeration injection wells () in a large concentric ring around a production well. By increasing the dissolved oxygen level in the ground water, undesirable constituents such as iron or arsenic are lowered in concentration. Methods can be employed to optimize the ground water treatment by injection of other substances, such as iron, as well as predict, model, design, monitor and maintain the treatment process.
Method And Apparatus For Inhibiting Biological Fouling Of Water Wells
Biological fouling of water wells is inhibited by replacing the air in the well column with an anoxic gas such as nitrogen to deprive aerobic bacteria of oxygen. The anoxic gas is applied from a cylindrical tank at the surface and through a gas pipe extending from the tank down into the well casing. The well casing is sealed near the top to prevent air infiltration and maintain a positive gas pressure. The anoxic gas is applied at a slightly positive pressure to maintain the well column filled with it and to prevent air penetration. The gas can be supplied to the well column only or to both the well column and the aquifer so that a blanket of gas in the area of the well inhibits air penetration of the water from the unsaturated cover layer above the aquifer.
Subsurface Technologies Inc since 1999
Vice President - Technical Services
Layne Christensen 1989 - 1999
Well Rehabilitation Specialist
Education:
University of Regina 1979 - 1985
MSc, Microbology
Skills:
Groundwater Water Supply Water Resources Water Water Quality Hydrogeology Water Treatment Energy Geology Municipalities Environmental Awareness Contract Management Drilling Environmental Compliance