Tsurumi for Military Precision

The facility needed a new wastewater treatment system as part of an ongoing EUR50 million development. Tsurumi provided its pumping equipment and expertise to create a tailor-made and self-contained solution that would be effective and – more importantly – easy to maintain. The end result was put into place in March this year when 47 Tsurumi pumps and aerators were installed at the base.

The pumps are all positioned in and around two large cylindrical tanks measuring approximately 35m long and 4m wide that are buried underground. These plastic cylinders are the biological stage of the wastewater treatment process. They work as sequencing batch reactors and are connected to the base’s sanitation system through a network of pipes.

The 47 pumps at the base include 22 aerators installed as free-standing units within the two tanks. The remaining 25 comprise two cutter pumps, two agitators, three decanters, four channel impeller pumps and 14 vortex impeller pumps.

NSR had to be located in a very remote area. This meant the wastewater system had to be very reliable and simple to maintain. This is to avoid unnecessary (and lengthy) engineer call outs.

Tsurumi’s products are known for their strength and quality. With a reputation for hard work, some of its pumps can even be found working today after more than 25 years active service. Paramount to this longevity is Tsurumi’s patented oil lifter: a device positioned within the oil bath of every pump (from 0.4kW to 200kW) that significantly reduces day-to-day wear on the double-mechanical seal, which itself plays a major role in protecting the motor from internal water damage.

To further assist the maintenance process at NSR, the two underground sludge tanks have several access points positioned at surface level to allow easy access to the pumps below.