Leopold, a Xylem brand
With over 88 years of experience, Leopold, a Xylem brand, is an industry leader in supplying water and wastewater treatment systems to over 8,000 cities and towns around the world including installations on six of the seven continents. Look to Leopold for all your filtration, clarification and sludge collection needs.


227 S. Division Street
Zelienople, PA 16063-1313
United States
Phone: 724.452.6300
Fax: 724.452.1377

Products + Services

The Leopold Clari-DAF PW (Potable Water) system is a clarification technology for the pretreatment of rapid gravity filter feedwater. It is a proven, highly effective way to remove low-density particulates, as well as giardia and cryptosporidium. more
  • The Leopold Clari-DAF PW (Potable Water) system is a clarification technology for the pretreatment of rapid gravity filter feedwater. It is a proven, highly effective way to remove low-density particulates, as well as giardia and cryptosporidium. more
  • As part of the complete Leopold underdrain system, the I.M.S. 200 and I.M.S. 1000 media retainers increase flexibility in media design by eliminating up to 14 in. (35 cm) of support gravel. Their physically rigid construction reduces flexing of the slots and the chance of clogging or biofouling. more
  • The Leopold elimi-NITE 2.0 denitrification system harnesses the advantages of deep-bed mono-media filters to effectively and efficiently remove nitrate-nitrogen in wastewater effluent as well as suspended solids, including precipitated phosphorus. more
  • Leopold desalination pretreatment systems can significantly reduce membrane-fouling contaminants—color, organics, soluble metals, oil and algae—before they reach your reverse osmosis (RO) membranes. more


MiPRO Advanced Oxidation Process Pilot Containers
Introducing the IMS 200 and IMS 1000 Media Retainers

An Expanding Issue

In the last decade, the existing Freedom District Water Treatment Plant (WTP)—owned by the Carroll County, Md., Bureau of Utilities—had access to plenty of source water... more

Milling About

NewPage operates eight paper mills in the United States. The Biron mill located in Wisconsin Rapids, Wis., produces approximately 370,000 tons of paper each year. more

Bay Watch

The Little Patuxent Water Reclamation Plant (LPWRP) serves the heart of Howard County, Md. The sewage collection system recently underwent a $92 million upgrade to... more

A Carolina Comparison

The Greenville Water System in Greenville, S.C., draws water from three sources—Table Rock Reservoir on the South Saluda River, Poinsett Reservoir on the North Saluda... more

Colorado City Tackles Turbidity Treatment

Dissolved Air Flotation (DAF) has been characterized as a clarification process that is limited to low-turbidity algae-laden waters. Pilot testing and actual plant... more

Optimizing Dual Media Filtration for Particulate Removal

The Philadelphia Suburban Water Company replaced the support gravel and media in four of the dual media filters at the Pickering West Water Treatment Plant in... more

Xylem Opens Office in Vietnam

Xylem Inc., a global water technology company, announced that it has opened a new office in Hanoi, Vietnam, to promote and market its technologies and solutions and... more


The city of Buffalo, Wyo., is among the many smaller U.S. water systems for which reliance on surface water means treatment changes are needed to comply with the Stage 2... more

World Class Water

Winnipeg water treatment plant adopts eight-step treatment processSuperlatives flow easily when describing the new $300-million water treatment plant (WTP) for the city... more

Quenching Thirst in the Valley

Utah WTP combines farsighted design rationale with advanced technologies In what has become a growing trend, the new Point of the Mountain Water Treatment Plant (POMWTP... more

Media Analysis

Pilot study of deep-bed denitrification filtration using different sources of siliceous media  more

A Plant For All Seasons

Integrating two water facilities to boost capacity while expanding one plant’s useful lifeFew would dispute that adequate water supply always has been the lifeblood of... more

Product Categories

Desalination; Desalination Equipment; Desalination Systems; Filter Media; Filter Underdrain; Denitrification Equipment; Dissolved-Air Flotation Equipment; Filters, Sand & Gravel; Water/Wastewater Filters; Secondary Treatment; Taste & Odor Removal; Treatment Plants; Wastewater Treatment; Wastewater Treatment Equipment, Advanced; Wastewater Treatment Systems, Packaged; Water Treatment; Water Treatment Systems

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