Ballast water filter ✓ precise degree of separation ✓ eliminate blockages of the filter mesh, despite high load of the ballast water ✓ aquaBoll® ✓

Pre-filtration of ballast water management systems 

The fully automated filtration solutions by BOLL & KIRCH are one of the key elements in ballast water management systems used on a wide range of deep sea vessels.
Using a BOLLFILTER as a pre-filter ensures trouble-free functioning of these sensitive, multi-stage systems. This filter removes organic particles and sediments from ballast water up to a particle size of 50 μm with great efficiency. Thanks to its innovative design and optimised functionality, the BOLLFILTER guarantees the necessary filtration quality even at the highest of flow rates. The compact automatic filters are embedded in the system between the coarse filters and the chemical or physical disinfection unit.

The Optimarin ballast water treatment system including a BOLLFILTER was the first U.S Coast Guard approved system.



MV “STELLA IVY” is a 250,000 DWT ore carrier equipped with the Balclor® Ballast Water Management System (BWMS) from the company SunRui Marine Environment Engineering Co, Ltd. This equipment, which has been USGC approved, consists of:

  • BOLLFILTER Automatic Type 6.18.3 filter which removes marine organisms larger than 50 µm.
  • Electrolytic unit which disinfects the ballast water.
  • Neutralizer which reduces the total residual oxidants (TRO) in the ballast water to below 0.1 ppm.


Download the SunRui case study


BOLLFILTERs for Ballast Water

BOLLFILTER Automatic Type 6.18.3



Individual platform concept ✓ Minimal operating costs ✓ Adaptive filtration configurations ✓ Multi-part housing construction ✓ Various housing materials ▶ Find out more!
BOLLFILTER Automatic Type 6.18.3
Ballast Water Filter ▶ Backflushing pre-filtration unit perfectly adapted to BWT-Systems ▶ simple and robust design ✓ Filter candle / fine sieve cylinder ▶ Get more information!
Solutions For Maritime Water Filtration
Ballast water management systems ✓ Exhaust gas cleaning systems ✓ Offshore water injection systems ✓ Fresh water generation systems ▶ Many more!
Frank Zichel | BOLL & KIRCH

You want to find out more?

Frank Zichel Head of Water Filtration +49 2273 562 233