The AmaDS³ is a combination of a patented, dry-installed solids separation system and two wastewater pumps in back pull-out design. The raw wastewater flows into a separator where the solids are separated from the liquid, and the solids-free waste water flows into a collecting tank where it is collected until a pre-set level is reached. The pump set is started up via a control system and pumps the waste water from the collecting tank into the discharge line. During this operation, the solids are flushed out of the separator and into the discharge pipe as well.
The pump set is switched off once the wastewater level in the collecting tank has gone down to the pre-set minimum level and at the inflow check valve opens automatically and raw sewage can again flow into the separator. As the wastewater handled by the pump’s hydraulic system is mechanically treated, pumps with smaller free passages and highly efficient hydraulic systems can be used, enabling operators to achieve considerable energy savings and to keep operating costs down.
KSB says that AmaDS³ is still economically viable in the case of high heads or long discharge lines, and the service life of the entire station is longer than that of conventional systems. Since the pumps handle solids-free water only, the risk of wear and clogging is extremely low. The pumps as well as the system’s most important components can be reached comfortably and without getting wet, and the separators are located outside the collecting tank. This ensures that the system can be serviced or repaired while it is in operation. The collecting tank is gas-tight and features a central vent.
KSB’s AmaDS3 is available in six different sizes with a maximum head of 85 m and a maximum inflow rate of 120 m3/hr.
