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Zambia’s factories burn too much coal – how reusing hot water can cut energy use

By Paul Coughlan, Professor in Operations Management, Trinity College Dublin
Aonghus McNabola, Deputy Dean International & Professor of Energy and Environmental Engineering

Wastewater heat recovery, which recycles hot water from drains to preheat new water, could cut coal use, lower carbon emissions, and create local jobs in Zambia.

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