Desalination of seawater is rapidly becoming an additional and necessary source of potable water in many parts of the world, and Grundfos is a market leader supplying total pumping solutions for desalination.
Grundfos can equip reverse osmosis plants operating in a one-stage or two-stage systems utilising pumps constructed in stainless steel with high corrosion classes and energy recovery systems with pump turbines at discharge. Such a construction can result in cost savings on maintenance, repair, power consumption and chemicals at the desalination plant.
Seawater is best treated at source to ensure the easiest discharge and minimise the extent of corrosion risk. Depending on the flow requirements and the salt content, a seawater intake may be hundreds of meters out to sea, while an on-shore seawater intake could be corrosion-safe beach wells or coastal bank filtration.
Grundfos can supply pumps for both dry and submerged installation. In particular, Grundfos SPRE pumps are specifically designed to withstand corrosion, especially where the water has a high concentration of hydrocarbons and many chemicals.
The fully automated disinfection systems developed by Grundfos offer an easy solution for chlorine-based disinfection methods. Grundfos can advise and supply disinfection solutions using chlorine compounds such as chlorine gas (Cl2), sodium hypochlorite (NaOCl), and chlorine dioxide (ClO2). The automated processes require very little maintenance, provide very high efficiency, and reduce running costs.
By integrating variable speed drives and motor protection components, Grundfos can offer complete systems that are pre-engineered to work together. Grundfos CUE frequency converters represent one of the most comprehensive and versatile ranges of external variable speed drives for pump applications currently on the market. Together with the easy to use MP 204 motor protection, we ensure 24-hour monitoring and control of all vital parameters, such as dry-running or overload, to ensure operational stability.
Grundfos can supply the specialist expertise to help meet your performance objectives, from the initial identification of needs, to the selection, installation, operation, and maintenance of the pumping solution. Grundfos commissioning agreements ensure correct installation and service agreements offer cover for all eventualities, from routine maintenance to spare parts and pump audits.
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