Ceramic Membranes Brochure

Innovative designs for sustainable, advanced water treatmentPWN TechNologiesPO Box 20461990 AA VelserbroekThe NetherlandsTelephone +31 23 541 3740info@pwntechnologies.comwww.pwntechnologies.comCeraMac is an innovative ceramic membrane block design by PWN Technologies, offering a considerable reduction in investment costs. The CeraMac design makes it econo­mically feasible to use ceramic membranes on surface water for large­scale applications.The use of a ceramic membrane compared to a polymer membrane has many advantages. Besides a longer lifetime almost any chemical can be used in combination with the membrane, making it possible to clean it with almost any thinkable cleaning regime. The strength of the membrane also makes it possible to use extreme backwash pressure without damaging the membrane and risking an integrity breach.Although ceramic membranes are perceived to be more expensive than polymeric membranes, their longer life expectancy results in comparable membrane operational costs. Despite these advantages, the application of ceramic membranes has been limited worldwide, mainly due to the high investment costs of the existing ceramic block designs. The CeraMac design by PWN Technologies however offers a considerable reduction in the investment costs, which can mean a breakthrough in the market share of ceramic membrane application.Besides very efficient process conditions, the total footprint is extremely low, creating the ultimate treatment step to remove all suspended matter. The application of CeraMac means a significant improvement in the filtration process. CeraMac is therefore extremely suitable in places where producing high quality drinking water is difficult or even impossible to achieve using conventional treatment processes.CeraMac’s innovative design uses the world’s best ceramic mem-branes from Metawater, in a highly compact set up. This unique block design combines 200 elements in a single vessel. Not only has Cera Mac a very small footprint, but also the amount of stainless steel and number of valves is less than other membrane installa-tions. The strength of the CeraMac block design enables a powerful backwash of up to 5 bar, to clean the membranes, with a downtime per backwash of only a few seconds, result ing in higher productivity and lower energy consumption, without the risk of water hammer.PWN Technologies: innovation enginePWN Technologies, a subsidiary of water supply company PWN in the Netherlands, was established to make the utility’s innovations in water treatment available to other water companies around the globe. The revenues of PWN Technologies are invested in R&D programmes to strengthen PWN’s position as an innovative water supply company. PWN Technologies has developed advanced and sustainable solu-tions in water treatment, based on suspended ion exchange, ceramic membrane applications and advanced oxidation. In addition PWN Technologies also delivers innovative solutions like the Perfector Series for drinking water production in emerging countries. PWN Technologies is located in the Netherlands (Velserbroek and Andijk) and Singapore.CeraMac Innovative ceramic membrane block designThe advantages of ceraMac: Small footprint Low energy consumption High reliability Limited number of valves and use of stainless steel per block Low maintenance High efficiency Powerful backwash, at a pressure of 5 bar Downtime for backwash only a few seconds: high productivityDesign of a 120 MLD full scale CeraMac plant.CeraMac block with 200 elements in a single vessel.