Drinking water treatment plant for removal of iron and manganese and reduction of DOC concentrations
To meet the requirements of the drinking water regulations, an existing well water supply had to be expanded with new filter technology.
The raw water derived from the well of the waterworks contains iron and manganese as well as increased DOC (dissolved organic carbon) levels up to 8 mg/l. It cannot be used as drinking water without a corresponding water treatment.
NUMBERS & FACTS:
• Location: Waterworks in Germany
• Plant capacity: 70 m³/h
• Task: Drinking water treatment of well water with increased iron, manganese, and DOC concentrations.
• Scope of supply: Piping and plant construction as well as electrical installation and control system, Process plant engineering, design, supply and installation to operating level, incl. flushing and auxiliary equipment, filtration plant control system.
• Date: 2007
In order to meet the parameters of the drinking water regulations, an extension of the water treatment plant was built at the location of the waterworks. Chriwa Wasseraufbereitungstechnik GmbH awarded the contract to supply and install a turnkey treatment plant, including the entire electrical installation and automatic control system.
Process technology
The well raw water is fed to the dual- ltration plant a er passing through the raw water aeration plant. The plant capacity is 70 m³/h. The filters are filled with ChriwaFiltMN, a special filter material successfully
used to remove iron and manganese at various waterworks and treatment plants. In this instance this also included increased DOC concentrations, besides manganese and iron.
The undesired substances are safely retained by the special Chriwa filter bed construction. After this processing step the water has drinking water quality and can be fed into the potable water mains via a pressure booster station.
