The market for pumps, valves, filters and chemicals used in desalination is expected to exceed $4.7 billion in 2014 based on research by the McIlvaine Company.

Product

2014 Revenue

($ Millions)

Water Treatment Chemicals

700

Pumps

500

Valves

350

Liquid Macrofiltration

90

Cartridges

60

Sedimentation and Centrifugation

50

Cross-flow Membrane Equipment and Replacement Modules

3,000

Total

4,750

 

Treatment chemical cost averages 0.03$/m3 of capacity in seawater, reverse-osmosis (RO) systems, and 0.02/ $/m3 in thermal systems. There is substantial use of scale inhibitors in thermal systems, while acids and antifoams are used in MSF (multi-stage flash) systems. Cleaning chemicals can be a substantial investment where RO is employed.

RELATED: Steady Demand for Sanitary Pumps in North America

The amount of water being pumped in desalination systems is presently only about 1 percent of the amount being pumped for all the world's drinking supplies. On the other hand, the high-pressure pumps needed for reverse osmosis are an order of magnitude more expensive than those used for drinking water transport.

Thermal systems require pumps for a number of processes:

•         Seawater intake pumps

•         Brine recirculation pumps

•         Brine blow-down pumps

•         Distillate extraction pumps

•         Condensate extraction pumps

•         Product forwarding pumps

Find more pump-related news and product info here.