COOLED, OIL-FREE AIR
- applicable everywhere
- without use of chemicals
- Ochreous deposits
- Sinter deposits
- other deposits
Potable water is generally scarce. In Austria, the groundwater level has dropped significantly in some regions, such as 2012 in the region Lavanttal Valley. In the summer there was no rainfall for months and too little snow during the winter. A decline in groundwater levels, siltation, encrustation and corrosion are the consequences and common reasons for a decline in water quality and flow of potable water wells.
MTA Messtechnik offers the service to ensure the continuous operation of your well and to achieve a significant improvement in water quality and quantity.
AIR JETTING PROCEDURE
The Air Jetting procedure cleans and regenerates the well at the same time. It is working with cooled, oil-free air in breathing air quality without the use of any chemical agent removing iron, manganese, humus, sludge, sand, ochreous, sintering and other deposits. Air hydraulic pressure waves produced by introducing highly compressed air in short intervals cause the water column cleaning effect, which acts very deep in the gravel filter.
LOOSENING THE GRAVEL
Due to this alternating pressure loads the gravel is loosened up to 20m in radius which causes a simultaneous cleaning of well casing and gravel filter. Gravel deposits in the filter, such as manganese and iron are crushed by the air pulses and flushed out. Filter pipe, filter vents and filters are cleaned at the same time.
The MTA Air-Jetting procedure for well cleaning is suitable for well pipes, PVC, concrete and clay pipes as well as for filters for non-aquiferous pipes. A video inspection by under water camera ensures accurate inventory and documentation before and after the cleaning process.
AIR JETTING METHODS
MTA AIR JETTING STANDARD
| up to 300bar | 250m | for well pipes
- incorporation of highly compressed air at short intervals
- air-hydraulic blasts producing cavitation effects
- deep penetration into the filter gravel
- loosening of the gravel by pressure load and relief
- simultaneous purification of pipe and gravel
MTA AIR WATER JETTING
| up to 150bar | 250m | for non-aquiferous pipes
Regeneration by means of an air-water mixture
Peels off all deposits and soilings from the pipe walls, the filter line and the gravel by turbulence and cavitation effects using flow velocities up to 25m/s.
MTA AIR JETTING SOFT
| up to 20bar | 250m | for PVC, concrete and clay pipes
- special valve system
- controlled finely metered air-pressure pulses
- no damages on filter pipes
SAND REMOVAL AND PUMPING TEST
Sand removal is indispensable for the removal of deposits after the cleaning process. A special valve system is lowered into the well bottom producing an air-water mixture with low density and high flow rates of up to 25 m/s.Pumping test for the discharge of deposits and soilings following a successful purification. A thorough well purification ensures a higher output of water.
- working on the mammoth pump principle
- special valve system introduced into the well
- air-water mixture with low density
- high flow velocity up to 25 m/s
- solids flushed out through the rise
Innovation and Research Award of Carinthia 2013
MTA Messtechnik GmbH, Projekt MTA Air Jetting Systems for Well Cleaning and Regeneration