Energy recovery devices

Along with the older style centrifugal energy recovery devices (ERDs), there has been a recent proliferation of ERDs that employ positive displacement mechanisms. These “pressure-equalising” or isobaric ERDs transfer the energy from the membrane reject stream directly to the membrane feed stream. Th

The intention of this paper is to to provide a general overview of the commercial and technical development of seawater reverse osmosis (SWRO) from the perspective of a manufacturer of spiral-wound reverse osmosis membranes. It illustrates the rapid rate of growth of the capacity of SWRO plants arou