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    | Doosan Lentjes

    Integrated Waste-to-Water Process (IWWP): How advanced thermal waste treatment makes water desalination more sustainable

    Water is the foundation of every human’s life, but water scarcity is a major concern around the globe: according to the globally acting conservation agency WWF, more than 2.5 billion persons face significant water shortage over the year. This situation requires the application of advanced water production technologies such as desalination which is an energy intensive process. Considering the problem of global climate change provoked through CO2 emissions released during the combustion of fossil fuels, the challenge is to ensure efficient desalination while reducing the negative environmental impact. As a response to this, waste-to-energy and water experts Doosan Lentjes and Water Division of Doosan Heavy Industries & Construction have designed an Integrated Waste-to-Water Process (IWWP) using the steam from the incineration of municipal solid waste (MSW) for the energy intensive desalination in water-stressed regions.

    Three facts: First, according to the World Bank, the Middle East North Africa (MENA) region is home to some 6% of the world population, but has only access to less than 2% of the world’s fresh water. Second, this region faces a consistent economic growth associated with an increasing energy demand, but is highly dependent on fossil fuels: more than 80% of the energy is generated from oil, gas and coal. Third, the MENA region has an unsolved waste disposal problem: according to the GIZ, German association for international collaboration, more than 50 million tons of residual waste are produced per year from which close to 95% are openly landfilled without any pretreatment. As holistic solution, the IWWP helps to comply with these three challenges: on the one hand, the advanced process using the largely CO2 neutral MSW as fuel secures a reliable and environmentally-sound water supply for citizens in water-stressed regions while making a valuable contribution to the implementation of more sustainable energy concepts. On the other hand, the thermal treatment of the MSW reduces the waste volume by more than 90% which helps to ensure a save waste disposal in the long-run while reducing reliance on landfill sites.

    “Our advanced IWWP can be optimized for either a higher energy generation or a higher water production – depending on respective requirements”, says Gerhard Lohe, Director Waste-to-Energy at Doosan Lentjes. “In this context it is important to see that 300 tons of municipal waste have the potential to generate enough energy to provide potable water for 100.000 people”, he adds.

    “Thanks to our extensive in-house capabilities, we are in a position to provide our customers with all required technologies from one single source which helps to reduce interfaces”, concludes Huibom Lee, General Manager Water Strategy Team Water Business Group at Doosan Heavy Industries & Construction.

    Water Business group at Doosan Heavy Industries & Construction is one of the leading providers of seawater desalination solutions. Our proven portfolio of Multi-Stage Flash (MSF), Multi-Effect Distillation (MED), and Reverse Osmosis (RO) technologies enables us to deliver reliable and cost-effective turnkey solutions with the shortest lead times in the industry. We continue to expand into various sectors of the water market as we pursue our vision of becoming a global leader in water.

    Doosan Lentjes is a specialist in the delivery of proven and reliable waste-to-energy technology, converting millions of tons of waste into valuable energy every year. This helps customers all over the world reduce their waste volumes and simultaneously provide a sustainable energy source.

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