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Lamella clarifier units installed at WTWs
industrial news Liquid engine filtration alliance Through their respective US-based subsidiary companies Ahlstrom Corp and Lydall Inc have formed a strategic alliance in an effort to better serve the liquid engine filtration market in North America. The partnership is expected to provide positive growth opportunities for Lydall’s microglass product platform, in particular its LyPore® XL wetlaid microglass media, in North America because Ahlstrom is well known for liquid engine filtration products in this region Scott Murdock, Ahlstrom’s vice president and general manager, North America Engine Filtration, said the partnership was a bonus for both companies. “In addition to Ahlstrom’s traditional range of cellulose and synthetic-based engine filtration media, the integration of Lydall’s microglass media and engineered composites, now provides a complete range of high-performance products for North American liquid filtration customers from one source.” Joe Petrosky, Lydall’s director of marketing and sales for Liquid Filtration, added “Ahlstrom's strong relationships and leadership position in liquid engine filtration complemented by the addition of Lydall’s state of the art microglass technology and product development expertise, position the alliance as one of the leading suppliers to high value added applications in this segment.” Sales, marketing, customer/technical service, invoicing and application engineering services will be based at Ahlstrom’s Madisonville, Kentucky facility, while manufacturing and product development will take place at Lydall’s Rochester, New Hampshire site. Ahlstrom specializes in fibre-based materials for niche markets worldwide. It’s FiberComposite division manufacturers products for engine filtration, nonwoven and reinforcement composites markets across the globe.
Lamella clarifier units installed at WTWs Paques BV Holland and its UK agent Aquabio Ltd have successfully supplied and installed Astraseparator lamella clarifier units to Degrémont for United Utilities’ Rivington and Lostock water treatment works (WTWs). The Astraseparator units have been installed as part of the wash water treatment system to treat backwash water from the sand filters. The sand filter backwash water flow is the largest wastewater stream generated within the WTWs. The recycling of such water is essential for the reduction of total water intake for drinking water production. The units have been provided in a modular design and can treat maximum flows of 187.5 m3/h and 220 m3/h for Lostock and Rivington, respectively. The surface overflow rate was designed at 0.65 m3/h. Suspended solids concentrations into the Astraseparator are around 350 mg/l and the clarifiers are achieving a 95% solids removal with a turbidity value of less than 2 NTU. This process was selected because of its simple design and versatility to operate continuously, in a stop/start mode or at a reduced rate. Both the flocculation and lamella separation sections are combined in one tank to promote efficiency and simplicity. Furthermore, the settling process can be optimized by dosing with polyelectolytes. Paques provides pilot plants and a full evaluation service, enabling design optimization and cost minimization for implementing wash water treatment components. These plants are in addition to units already supplied to Guernsey Water Board, Hyder and Scottish Water.
H&V makes melt blown investment in Europe Hollingsworth & Vose Co (H&V) is to install a new, state-of-the art meltblown line at its facility in Hatzfeld, Germany. The investment will significantly extend H&V’s capability and capacity in meltblown production for high efficiency filtration market segments and provide local supply for its European customers. It represents one element of a broader nonwoven strategy to meet market demand for technically advanced filtration media in high efficiency air and liquid filtration, as well as engine filtration applications. The line is another step in H&V’s European investment programme. In 2000, H&V purchased Hepworth Air Filtration in Kentmere, UK, and in 2001 it acquired J C Binzer Papierfabrik in Hatzfeld, Germany. With the addition of meltblown capacity to its European base H&V will be able to increase the service level to local customers and maintain its position as one of the world's major meltblown manufacturers for filtration media. 6 September 2004
www.filtsep.com
Lamella clarifier units installed at WTWs Paques BV Holland and its UK agent Aquabio Ltd have successfully supplied and installed Astraseparator lamella clarifier units to Degrémont for United Utilities’ Rivington and Lostock water treatment works (WTWs). The Astraseparator units have been installed as part of the wash water treatment system to treat backwash water from the sand filters. The sand filter backwash water flow is the largest wastewater stream generated within the WTWs. The recycling of such water is essential for the reduction of total water intake for drinking water production. The units have been provided in a modular design and can treat maximum flows of 187.5 m3/h and 220 m3/h for Lostock and Rivington, respectively. The surface overflow rate was designed at 0.65 m3/h. Suspended solids concentrations into the Astraseparator are around 350 mg/l and the clarifiers are achieving a 95% solids removal with a turbidity value of less than 2 NTU. This process was selected because of its simple design and versatility to operate continuously, in a stop/start mode or at a reduced rate. Both the flocculation and lamella separation sections are combined in one tank to promote efficiency and simplicity. Furthermore, the settling process can be optimized by dosing with polyelectolytes. Paques provides pilot plants and a full evaluation service, enabling design optimization and cost minimization for implementing wash water treatment components. These plants are in addition to units already supplied to Guernsey Water Board, Hyder and Scottish Water.
H&V makes melt blown investment in Europe Hollingsworth & Vose Co (H&V) is to install a new, state-of-the art meltblown line at its facility in Hatzfeld, Germany. The investment will significantly extend H&V’s capability and capacity in meltblown production for high efficiency filtration market segments and provide local supply for its European customers. It represents one element of a broader nonwoven strategy to meet market demand for technically advanced filtration media in high efficiency air and liquid filtration, as well as engine filtration applications. The line is another step in H&V’s European investment programme. In 2000, H&V purchased Hepworth Air Filtration in Kentmere, UK, and in 2001 it acquired J C Binzer Papierfabrik in Hatzfeld, Germany. With the addition of meltblown capacity to its European base H&V will be able to increase the service level to local customers and maintain its position as one of the world's major meltblown manufacturers for filtration media. 6 September 2004
www.filtsep.com