Separator's Digest 2004/1 - GEA Westfalia Separator Group

lic. Whilst in 2000 the real economicgrowth rate was still as high as 9.9 %,the consumers' paradise had to copewith a shrinking gross domestic productin 2001 for the first time.“To serve the futureneeds of Singapore thePublic Utilities Board isembarking on a projectto build a wastewatertreatment plant (or waterreclamation plant), saidto be one of the largestplant to be built in asingle construction.”No wonder that the order for 30decanters for about 35 million € is oneof the biggest orders received throughoutthe history of Westfalia Separator.30 giant machines for sludgethickening and dewateringIn order to remain prepared for thestill unending increase of population,currently almost 4 million, Singaporesucceeded in enlarging its land surfaceby 15 % in the last 20 years, by recoveringland from the sea.The new wastewater treatmentplant will be erected on a 54-hectaresurface of sea recovered land. InFebruary 2002, the Metax EngineeringCorporation, a mechanical engineeringcompany from Singapore, receiveda large-scale order for the equipmentof a mechanical sludge separationsystem for the plant. Westfalia SeparatorUmwelttechnik and Metax are goingto fullfill this order.The heart of the system will be 20decanters type CA 1036 for sludgethickening and 10 decanters type CA1035 for sludge dewatering. In additionto these gigantic scroll type centrifuges,peripheral gear such aspumps, conveyor units, flocculent stations,and switching units will be supplied.Simultaneously, a time-limitedmaintenance contract was concluded.ContinuouslyperfectCompared with othereffluent treatmentmethods, decanterscan offer the advantageof continuousoperation – with considerably lowerspace requirements, which is of vitalimportance in the dense-ly populatedcity state. Moreover, the operatingexpenses will be clearly lower.The first decanter will be suppliedin early 2004 and then, one machinewill follow each month. The wholeorder will be achieved by April, 2007.Plant erection will be carried out onthe basis of a detailed time schedule.Once completed in 2007, the plant willbe able to treat about 800,000 m 3 ofwaste water daily. The city of Berlin,with 3.5 million inhabitants, clarifiesabout 650,000 m 3 each day.Waste water will be delivered tothis mega size waste water treatmentplant via a new subterranean sewagetunnel having a 3.6–6 m diameter overa distance of about 40 kilometres fromvarious parts of Singapore so Singaporeremains clean and pure. ■Michael WünschGeneral Project ManagerSingapur Changi WRP EP 7Westfalia Separator Umwelttechnik, OeldeTel.: + 49 25 22/77-19 76wuensch.michael@gea-westfalia.deSeparator´s World31Separator´s Digest 1/2004