is a major unit operation that exists in almost every flowscheme
related to the chemical process industries, ore beneficiation,
pharmaceutics, food or water and waste treatment. The separation
techniques are very diverse and the objective of this site is to
provide a platform for plant and design engineers, research
personnel and students to discuss practices, experiences and new
developments in this fascinating unit operation.
The site is still under
construction and so far the following sections have been completed:
Vacuum Filters - the
Pressure Filters -
the entire section.
Thickeners - the
section on Conventional Thickeners and High-Rate Thickeners
Sections that will be
The site, when
completed, will review the following topics:
and pressure filters.
vacuum precoat filters and pressure
filtering and sedimenting centrifuges.
conventional, storage and high-rate thickeners .
conventional, solids-contact and sludge-blanket clarifiers.
vacuum pumps, filtrate pumps, vacuum receivers, moisture traps
This site does not cover
separation methods such as screening, hydrocycloning, froth
flotation and dissolved-air flotation due to my limited experience
in these applications.
Other related subjects
that will be discussed are:
flocculation by bridging polymers.
by wetting agents.
and its influence on performance.
Defining a Relative
Filtration Index during the research phase.
diminishing returns on wash efficiencies and drying.
Filtering medium and
effects on separation rates.
Please do not hesitate
to comment on any of the topics, your opinion, open discussion and
criticism are most welcome!