Supporting desalination in a sustainable and energy-efficient manner.
The world is faced with greater water shortages due to overexploitation, water pollution and more extreme weather patterns as a result of climate change. In search of efficient and climate-friendly solutions to address the shortage of freshwater resources, Danfoss, in collaboration with Water & Wastewater Asia, hosted a webinar titled Achieving Energy Efficiency in Desalination, Water and Wastewater Treatment Plant earlier this May.
The webinar shed light on two Danfoss solutions – the APP high-pressure pumps and iSave energy recovery devices (ERDs) – that are designed to enhance energy efficiency in the desalination process while enabling water utilities and wastewater treatment plants to produce fresh water in a more sustainable and energy-efficient way.
Speaking at the webinar was Vijaykumar Subramaniam, regional sales manager – ASEAN region, Danfoss, who highlighted that the APP pumps offer energy efficiency of up to 92%, making them one of the most energy-efficient high-pressure pumps available in today’s market. Designed for reverse osmosis, the APP range of axial piston pumps is available in various sizes from 0.6-86m3/h for use in small- and medium-sized seawater reverse osmosis (SWRO) facilities.
He explained: “The energy efficiency rate of a centrifugal pump is around 60-65%, and operators using reverse osmosis for brackish water will require lower pressure at about 10-13 bar. As for seawater desalination, the average is about 50-55 bar. Energy usage is equivalent to operating pressure. Hence, every single kilowatt does matter as the energy cost accounts for almost 60% of the operating cost, which is why having an efficient high-pressure pump is important for Opex.”
The full article is available in the latest edition of Water & Wastewater Asia Jul/Aug 2022 issue. To continue reading, click here.