Plant details
La planta de desalinización Qingdao SWRO en China entró en línea en junio de 2012 para proporcionar 100,000 m3 de agua potable al día a los 500,000 habitantes de la ciudad de Qingdao. La planta se estableció por una empresa conjunta entre Abengoa y la municipalidad de Qingdao, y es una de las muchas iniciativas de desalinización de agua de mar en el país, que proporciona agua para uso residencial e industrial. Investment for the plant reached $176 million and is the largest of its kind in China. Qingdao Water Group is the current owner of the plant.
The Qingdao plant uses water from the Jiaozhou Gulf. Intake pumps bring water from the Gulf for pretreatment with a 250,000 m3 per day Norit ultra-filtration membrane system. There are three high pressure pumps to supply a total of six reverse osmosis membrane trains each with its own energy recovery systems. The reverse osmosis configuration is a 2 pass system with an elevated pH on the 2nd pass for boron removal. Two years of pilot testing helped optimize the feed flow design of 232,000 m3/day in the winter at 3 oC and 235,000 m3/day during the summer at 21 oC.