Page 120 - Membranes for Industrial Wastewater Recovery and Re-Use
P. 120

Table 3.5  (continued)
 Treatment goal(s)   Treatment approach  Description   Treatment application   Limitations
  Cooling   Blowdown Boiler
  tower     water    make-up
  make-up            water
  water
 Removal of dissolved   Reverse  osmosis   Membrane system to separate   X   X   Potential for fouling of RO membranes.
 solids. organics,   ions from solution basedon   Brine requires treatment/disposal
 pathogens   reversing osmotic pressure
 differentials
 Nanofiltration and   Pressure-driven membrane   X   X   Potential for fouling of membranes.
 ultrafiltration   processes to remove   Reject stream requires
 constituents based on charge   treatmentjdisposal
 and molecular size
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