Minerals - Case Study

Challenge

• Premature breakdown of membrane filter elements made of polypropylene due to high chlorine loads
• Pressure differentials and plate breakages caused by uneven chamber filling due to blocked filter channels

Solution

• Testing and selection of new materials to prolong service life and reduce the influence of chlorine
• Modification of filter element design in respect to avoiding the use of corrosion-resistant, expensive precious metals
• Use of support/distribution rings for process optimization
• Modification of filter cloths with respect to the prevention of cake formation in feed ports

Advantages

• Cost reduction through considerable increase of membrane service life
• Better and more even filling of the chamber
• Improvement of cake release
• Homogenous and dry filter cake