Escalating Water Demand for Energy Production and the Potential for Use of Treated Municipal Wastewater

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Abstract
To ensure sufficient thermoelectric power production in the future, the use of alternative water sources to replace freshwater consumption in power plants will be required. The amount of municipal wastewater (MWW) being produced and its widespread availability merit the investigation of this potential source of cooling water. This is particularly important for thermoelectric power plants in regions where freshwater is not readily available. Critical regulatory and technical challenges for using MWW as makeup water in recirculating cooling systems are examined. The existing regulations do not prohibit wastewater reuse for power plant cooling. The challenges of controlling corrosion, mineral scaling, and biofouling in recirculating cooling systems need to be carefully considered and balanced in a holistic fashion. Initial investigations suggest that many of these challenges can be surmounted to ensure the use of MWW in recirculating cooling systems.

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