A discussion of filter housings.
One Hawaiian hotel was able to quickly fix a filter problem that was turning its tropical ponds into a milky and murky mess.
Cellulose acetate membranes serve as the under-the-sink choice for a host of reasons.The nation's water systems are increasingly cited for causing illness due to water-borne bacteria and organisms, creating distrust in the quality of our domestic tap water. At the same time, business opportunities for water treatment vendors are thriving due to the increasing demand in purified water.
The removal of impurities and contamination from water supplies or industrial chemicals is a process existing all over the world to varying degrees of sophistication. Filtration systems vary enormously according to location, the type of purification required and funding available.
An overview of various filtration methods and their applications
Membrane filtration, widely used in chemical and biotechnology processes, is already established as a valuable means of filtering and cleaning wastewater and industrial process water.
Bethel Park, Pennsylvania installed two 4MGD traveling bridge filters in 1980. According to Joe Witkowski, who manages the facility, "We had serious media leakage with our old filters. We had continuous backwashing and mechanical problems - they just couldn't handle high flows. Plus, they had serious media leakage problems."
Tetra Technologies, Inc., has developed an underdrain plate called Savage Plate for water filtering applications. It offers retention of finer filtering media while expanding filtration performance and increasing filtration efficacy.
The Savage Plate consists of three layers of black, ultraviolet-resistant, porous high-density polyethylene (HDPE) resin.
Products at Work
New water purification facilities constructed by J.S. Alberici Construction Co., Inc., in Milwaukee, Wisconsin, will ensure the safety of the city's water supply.
Products at Work
Faced with exorbitant costs for conventional filtration treatment, one California city tried an alternative technology.
Tertiary Filtration Piloting conducted at two different WWTPs demonstrate improved performance of large anthracite media compared to dual and single sand media filtration.