Heat from Energy Recovery Could Benefit Water Stressed Regions : Doosan Lentjes Designs Waste to Energy Powered Water Desalination Process

Doosan Lentjes has unveiled its design for an Integrated Waste-to-Water Process (IWWP) using steam from the waste to energy plants for energy intensive desalination in water-stressed regions.

The company, a division of South Korean firm Doosan Heavy Industries & Construction, explained that water scarcity is a major concern around the globe and noted that according to the WWF more than 2.5 billion persons face significant water shortage.

Increasingly this situation was said to require the application of advanced water production technologies such as desalination which are energy intensive.

As a holistic solution Doosan Lentjes said that the IWWP helps to comply with three challenges:

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.

According to the company, the advanced process using 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.

Doosan Lentjes added that the thermal treatment of the MSW also has the advantage of reducingthe waste volume by more than 90% which helps to ensure a save waste disposal in the long-run while reducing reliance on landfill sites.

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