Mechanical regeneration
This means mechanically removing efficiency reducing deposits from the well annulus and the adjacent aquifer with the aim of restoring the hydraulic function.
During the entirely mechanical regeneration, the separation process takes places entirely without using any chemical substances.
Brush equipment for use during mechanical cleaning
Blast pulse method
Two pairs of blast pipes rotating in opposite directions are operated by means of high-pressure water. These blast pipes introduce into the well system (including the adjacent aquifer) the energy required for removing und separating the soilings and siltings. At the same time, the dissolved substances are discharged and the data are captured continuously thereby guaranteeing a best-possible regeneration of the well.
Heavy-duty removal of sandy deposits
Vertical filter wells and horizontal filter wells will be reinstated in a sand-free condition by conducting heavy-duty withdrawals with the help of tightly packered double piston chamber devices. The heavy-duty removal of sandy deposits is carried out according to DVGW rules W 119.
Hydromechanical regeneration
A hydromechanical well regeneration needs to be done whenever slightly or severely solidified deposits are present in the annulus. Currently, a hydromechanical regeneration can be carried out via various different methods. Depending on the nature of the deposits, a heavy-duty withdrawal, a low-pressure interior flushing or the already mentioned high-pressure flushing procedure will be applied.
