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Xylem’s Leopold brand is a leader in rapid gravity media filtration and clarification solutions for the water and wastewater industry. In potable drinking water treatment plants, the Clari-DAF system is used to clarify raw water to remove contaminants such as turbidity, algae, color, iron/manganese, organics, and taste and odor compounds. Leopold filtration products include rapid gravity media, membranes and reverse osmosis/ultrafine filtration. Leopold gravity media filtration is used in potable water treatment plants to remove particulate in the final filtration step. In public utility wastewater treatment plants, the Clari-VAC system is used in final clarifiers to remove sludge solids. For those areas where nitrogen and phosphorus nutrient removal is required, Xylem provides elimi-NITE systems which convert the filters to become biologically active so that the effluent meets the mandated nitrate and phosphorus levels. In desalination systems, Leopold Clari-DAF systems and Filterworx systems are provided to remove contaminants that will harm reverse osmosis membranes, so that salt can be removed from the seawater to make it potable.

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Industries & Applications

Xylem offers a range of advanced wastewater and water solutions to help operators around the world achieve their required water effluent while delivering optimal performance, reliable operations and substantial energy savings no matter what industry or application. Working with customers, Xylem listens, learns, and adapts to local environments, ensuring the best possible design, customized to meet their specific needs. Below are some recommended industries and applications.

Since 1924 Leopold has been designing and manufacturing rapid gravity media filtration and clarification solutions for treating water and wastewater. Leopold supplies potable drinking water treatment plants with media filtration, backwash water recovery, and desalination pretreatment solutions, while supplying wastewater treatment plants with tertiary filtration and denitrification solutions. They also supply both potable and wastewater treatment plants with dissolved air flotation (DAF) clarification and sludge collection solutions.

Leopold engineers are available to help analyze, evaluate and design all aspects of a complete filtration system, including evaluating influent water qualities, determining optimal loading rates and best design configuration, selecting the best media characteristics, and designing the backwash process. Xylem’s Leopold Filterworx performance filter system comes complete with flume, underdrains, integral media support, engineered media, backwash water troughs, and system controls. The result is a cost effective, efficient, high-performance system designed to meet customer requirements. 

Xylem’s Leopold Clari-DAF is used to clarify raw water to remove contaminants such as turbidity, algae, color, iron, manganese, organics, and taste and odor compounds. It’s a highly-effective, proven technology for removing low-density particulates as well as Giardia and Cryptosporidium. Its performance is superior to conventional clarification in providing consistent water quality, producing consistently high sludge solids, and operating at high loading rates– results that can lower customer’s total cost of operation.

Leopold also offers sludge collection solutions with the Clari-VAC floating sludge collector and the CT2 submerged sludge collector. These systems are used in final clarifiers to remove the sludge solids. For those areas where nitrogen and phosphorus removal is required, Leopold provides elimi-NITE denitrification systems which convert the filters to become biologically active so that the effluent meets the mandated nitrate and phosphorus levels. 

In desalination systems, Leopold Clari-DAF systems and Filterworx systems are introduced to pretreat water and remove contaminants that could harm reverse osmosis membranes, so that salt can be removed from the seawater to make it potable.

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Xylem has offices in 150 countries around the world. If you are looking for a location different from the ones listed below, click on "find a location" at the bottom of the page.