Sister vessel of the "Helios" equipped with Boll & Kirch Filters
In total, each vessel has 3 automatic filters and approximately 30 Simplex and Duplex Filters. In addition, each vessel is equipped with a Boll & Kirch ultrasonic cleaning unit.
This unit will be used to ultrasonically clean the wire gauze filter elements installed in the above-referenced filters. This cleaning is highly effective and furthermore saves a great deal on time and costs, because the process can be performed aboard ship.
The choice of cleanable wire gauze elements is considerably more environmentally friendly than the disposable elements and of course this is also consistent with the sustainable strategy policy pursued by Boskalis.