Home\Featured\Reducing the Cost of Concentrate Disposal: Using a Novel Hybrid NF-RO to Enhance Sodium Chloride Removal (Webcast)

Reducing the Cost of Concentrate Disposal: Using a Novel Hybrid NF-RO to Enhance Sodium Chloride Removal (Webcast)

When:
November 14, 2018 @ 2:00 pm – 3:00 pm
2018-11-14T14:00:00-05:00
2018-11-14T15:00:00-05:00

A pilot study was conducted to demonstrate the viability of a two-pass system, combining a nanofiltration (NF) pass with a second reverse osmosis (RO) pass and blending the NF concentrate with the RO permeate.

Webcast
2:00 p.m. – 3:00 p.m. Eastern
11:00 a.m. – 12:00 p.m. Pacific
PDHs: 1
Fee: WateReuse members and WRF subscribers: Free; Others: $49

Register Now!

Concentrate disposal is a major cost for desalting operations, and for many water-recycling applications only partial desalting is needed, often targeting sodium chloride specifically. A pilot study was conducted to demonstrate the viability of a two-pass system, combining a nanofiltration (NF) pass with a second reverse osmosis (RO) pass and blending the NF concentrate with the RO permeate. Findings indicate that sodium chloride can be preferentially removed from the reclaimed water, chemical and power consumption can be reduced when operated at system recoveries comparable to typical RO systems, and much higher recoveries are achievable with modest increases in power and chemical usage.

Presenters

  • Robert McCandless, Principal Investigator, Brown and Caldwell
  • Erin Mackey, Co-principal Investigator, Brown and Caldwell

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