Xylem’s Leopold Oxelia is an ozone-enhanced biologically active filtration system and multi-barrier solution for municipal wastewater treatment. The Leopold Oxelia system combines ozone, filtration and analytical instrumentation to deliver optimal wastewater treatment for water reuse and discharge into sensitive waters.

Growing populations and decreasing fresh water resources are leading to increased demand for potable reuse of wastewater treatment effluent. Previously difficult to treat pollutants like personal care products (PCPs), active pharmaceutical ingredients (APIs) and endocrine disrupting compounds (EDCs) can now be cost effectively removed from a water stream using Xylem’s Leopold Oxelia. This multi-barrier removal opens up increased options for water reuse, including industrial use, groundwater recharge, agriculture and even direct potable reuse.

The Leopold Oxelia system also makes effluent suitable for direct discharge into the most sensitive ecosystems. Around the globe, vital aquatic ecosystems are adversely impacted by contaminants that are not adequately treated by conventional wastewater treatment systems. Public concerns about human health and that of water bodies have encouraged many countries and utilities to develop their own criteria in order to protect vital aquatic environments within their jurisdictions. Switzerland has already set removal of ‘contaminants of emerging concern’ (CEC) as a top priority and recently imposed advanced micro-pollutant treatment for wastewaters into federal water protection laws.

Ozone-enhanced, biologically active filtration systems have lower capital costs than reverse osmosis-based (RO) membrane solutions and, because the systems do not produce another waste stream requiring further treatment, operations are simpler and more cost efficient.

Xylem’s Leopold Oxelia is suitable for municipal wastewater tertiary applications of more than one million gallons per day (MGD) (160 cubic metres per hour). Xylem offers comprehensive design support and a process guarantee with the product.

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