Myron, lvlttsburgm'la. Myron, deceased. Leopold Company, Ine.
This invention relates generally to filters, and more specifically to a filter bottom construction employed to support filter media in liquid filters. Multi-block filter bottoms of the type disclosed in U. The upper walls of the blocks are provided with passages through which liquid can pass during both the filtering and backwashing operations.
From the beginning, Leopold has been synonymous with rapid gravity media filtration. Over the past 80 years, we've proven our expertise and leadership in filtration technology and offer a wide range of systems and equipment that employ the many innovations we have pioneered. The Leopold brand has been delivering the most efficient and reliable filtration systems since With the new Leopold Type Underdrain, we are adding a bolt down model to our underdrain family providing:.
Suitable for wastewater plants, biologically active filters and more. More driving head results in longer filter run times. Provides even backwash distribution to deep clean filter media.
Xylem Water Solutions Leopold, Inc. From the beginning, Leopold has been synonymous with rapid gravity media filtration. Over the past 80 years, we've proven our expertise and leadership in filtration technology and offer a wide range of systems and equipment that employ the many innovations we have pioneered.
The present invention relates to an improvement in the water collecting and distributing apparatus disposed in a lower portion of a high speed filter basin. The lower portion of the water collecting and distributing apparatus is constructed by a filter medium or filter layer 2, a gravel layer 3 and hollow blocks 4 arranged below these layers 2 and 3. Each block 4 has a number of holes in the top wall thereof. Reference numeral 5 represents a dam for collecting filtrate or clarified water, the numeral 6 represents a conduit for distributing back wash water for washing away suspended substance, colloidal substance and solids adhering to the filter medium 2, and the reference numeral 7 represents a trough for supplying raw water containing suspended substance, colloidal substance and solids to be removed by filtration.
This application is a continuation of application Ser. This invention relates to underdrains in gravity filters and, more particularly, to caps for underdrain blocks. Gravity filters frequently employ underdrain systems or filter bottoms for collecting and channelling effluent away from the filter bed and also for distributing backwash fluids into the filter bed.
From Gravity Media Filtration Systems. Xylem's Leopold Filterworx performance filter is another example of how Xylem has been at the forefront of gravity media filtration for decades. Filterworx combines multiple components — underdrains, integral media support, flume, engineered media, backwash water troughs, and system controls — into a single gravity media filtration system that best meets application and permit needs. Xylem engineers work with customers to develop a cost-effective, energy efficient and high performance system.