This is a Kenics/NOV static mixer with a 300 mm GRP element, UltraTab model, for desalination applications, installed in the United Arab Emirates.
Desalination covers a variety of processes that aim to reduce the salinity of seawater or brackish water, to obtain water for domestic or industrial use.
An UltraTab static mixer is generally the best option for these applications: it combines shorter length, the lowest pressure drop and the smallest coefficient of variation (CoV), resulting in the best mixing quality.