News | June 11, 2012

Xylem's New Advanced Filtration Technology Leads The Way To Make Higher Quality Effluent With No Need For Gravel

Source: Leopold -- A Xylem Brand
Contact The Supplier

Xylem Inc., a leading global water technology company focused on addressing the world’s most challenging water issues,has engineered a new water filtration technology to replace support gravel in the wastewater market and porous plates in the drinking water sector. The new Leopold I.M.S 1000 media retainer allows wastewater treatment plants to consistently deliver higher quality effluent than is possible with support gravel due to increased media depth and available driving head. The new Leopold I.M.S 200 media retainer delivers the same benefits to water treatment facilities.

As well as exceptional performance, the Leopold I.M.S media retainers deliver a host of other benefits including lower capital expenditures related to ease of installation and potential for smaller vertical footprint, reduced operational expenses due to longer filter runs using less water and energy and the product’s performance over an extended period of time. In addition, the I.M.S media retainers come backed with Leopold’s 85 years of reliability and expertise in water treatment. 

Rob Laird, General Manager of Xylem’s Leopold brand said, “The I.M.S media retainers are an exciting addition to the market.  When coupled with Leopold Type S or Type SL Underdrain, they provide superior air and water distribution over porous plates or gravel.”

The I.M.S 1000 model is suitable for use in wastewater plants, in GAC contactors, in biologically active filters and in the construction of filters for de-nitrification. The I.M.S 200 is suitable for drinking water and desalination plants.

Laird continued, “The Leopold I.M.S media retainers are a more effective solution for a number of reasons. Xylem’s precision engineering ensures a highly uniform distribution of air and water during the backwashing process which thoroughly cleans the media after each filtration process. A more flexible filter design allows for increased media freeboard and available media expansion resulting in a higher quality backwash. The rigid structure reduces the threat of bio-fouling* and there is no risk of gravel migration. Whether retrofitting into an existing filter or designing a new system, the Leopold I.M.S media retainer costs less than alternative systems to install and maintain.”

About Leopold
Leopold, a Xylem brand, has been a pioneer in designing and engineering clarification and filtration systems for the water and wastewater industry for over 85 years.   Leopold’s expertise and leadership is proven through a wide range of systems and equipment installed in over 8,000 locations globally. Leopold has a full spectrum of engineering services to offer customers with products and systems that work to meet the unique water requirements of each community.  For more information, visit

About Xylem
Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Launched in 2011 from the spinoff of the water-related businesses of ITT Corporation, Xylem is headquartered in White Plains, N.Y., with 2011 revenues of $3.8B and 12,500 employees worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all -- that which occurs in nature. For more information, visit

*the accumulation of microorganisms, plants, algae or inorganic material

SOURCE: Leopold -- A Xylem Brand