Water challenges

The world becomes more power-hungry every day. Demand for electricity keeps growing, and new power generation plants are constructed under increasingly demanding conditions, often in water-stressed locations. New plants are also subject to high regulatory pressure and water-efficiency standards. It is now imperative to find solutions to reduce water consumption and maximize the reuse of water to protect valuable resources. Electrical power generation requires lots of water to remove heat resulting from the energy transfer in thermoelectric plants. 

Wherever populations grow and droughts become more frequent, the amounts of water used are a concern. Growing competition for water can have a major impact on operations. New technologies are finding their way to a market eager to cut down on water use while meeting the growing demand for electricity as cost-efficiently as possible. 

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applications

All steam cycle plants (nuclear, coal, natural gas, solar thermal) require large amounts of cooling water to remove heat from the steam condensors. The amount of water needed relative to plant output varies greatly. Coal- and gas-fired boilers are very efficient in producing high-temperature steam and require less water to cool before discharge onto surface water. Thermal cycle plants in coastal locations use seawater and have no need for cooling towers. Every competitive power plant needs to prepare process water with the most efficient treatment available today.

Boiler feedwater can present a variety of issues, such as corrosion, microorganisms, silica, and other turbidities that compromise the efficiency of boiler heat transfer, and subsequently power generation. Byproducts and waste streams can threaten the environment when discharged in effluent flows, or cause problems with plant efficiency. Recycled wastewater can be treated to any specification fit for reuse.

Solutions

Pentair Advanced Filtration offers the power industry a wide range of innovative solutions that reduce the water footprint of plants and make them operate more reliably and efficiently. Lower overall costs can be achieved both in production and in preventing pollution. Leachate treatment protects precious groundwater supplies by retaining highly toxic solutions of heavy metals and inorganic compounds. Effluent polishing delivers compliance with stringent discharge regulations.


Treatment solutions

  • Silica removal from boiler feedwater
  • Condensate treatment to remove impurities 
  • Water recycling and reuse
  • Pretreatment for reverse osmosis/desalination
  • Biological wastewater treatment
  • Effluent polishing  
  • Leachate treatment