Troubleshooting Filter Aids and Filtration Systems

Filter aid pretreatment can improve filtration properties and efficient removal of fine solids. Whether the filter aids are used in Plate-and-frame filter presses, horizontal and vertical pressure leaf filters, candle or tubular filters, Nutsche filters, or rotary vacuum drum filters, these practical tips can help this part of the process run smoothly. We typically see diatomite, perlite and cellulose filter aids today. They meet the requirements of a filter aid in that they: Consist of rigid,…


Chemical Engineers & Our Superstitions

Photo by Emmeli M on Unsplash Superstitions surround us: Touching wood? Carrying a rabbit’s foot? Collecting lucky pennies? Not stepping on any cracks? The list goes on and on.  On one of my many chemical filtration business trips (many people have superstitions making flights safer), I read…