Submerged or Sidestream: Best Forward Osmosis Configuration For an Osmotic Membrane Bioreactor
A pilot-scale osmotic membrane bioreactor (OMBR) was developed with a forward osmosis (FO) membrane submerged in a bioreactor and a Membrane Distillation re-concentration step driven by waste heat for potable […]
A Case Study in Controlling Phosphate-Induced Scaling in Potable Reuse
In potable reuse, reverse osmosis (RO) is important for system-level salinity management and as a pathogen barrier in the treatment train. Scaling is a key driver of cost for RO […]
A Successful Modification of Conventional SBR to MBR at Indian Casino and Facility: Case study of Chumash Casino and Resort Water Reclamation Facility (WRF)
A conventional wastewater treatment process such as sequencing batch reactor (SBR) was successfully upgraded to a membrane bioreactor (MBR) at an Indian casino resort and hotel, Santa Ynez, California. The […]
Effect of Pressure on Alginate Fouling in Forward Osmosis
The superior fouling resistance of forward osmosis (FO) desalination with respect to reverse osmosis (RO) has prompted debate over the effect of hydraulic pressure. We present a method of isolating […]
Use of Membrane Performance Metrics to Characterize Membrane Replacement Requirements
Typically, membrane module replacements have been completed on either an as needed basis due to integrity failure, or based on a fixed term, maximum operating period dictated by membrane warranty […]
Extending the Useful Life of a 15 MGD Rio Grande Ultrafiltration Facility
The City of Eagle Pass, Texas draws its water supply from the Rio Grande treating the river water through a 15 MGD ultrafiltration treatment plant. After 10 years of operations […]
Dewatering of High Salinity Brines by Osmotically Assisted Reverse Osmosis
In reverse osmosis (RO), the upper concentration limit to which a brine can be dewatered is about 90 g/L total dissolved solids (TDS). This limitation contravenes the use of RO […]
Membrane Surface Modification Using Quorum Sensing Inhibitors for Biofouling Prevention
Quorum sensing (QS) pathways regulate bacterial communication to trigger biofilm development, the main cause of membrane biofouling. Recent studies identified the integral role of QS inhibiting (QSI) compounds to disrupt […]
Advanced MBR Technology to Improve Water Quality and Increase Use of Recycled Water for West Basin Municipal Water District
This presentation will share the successful planning and design of an innovative tertiary membrane bioreactor (TMBR) facility. This facility will provide flexibility to meet future water quality challenges, reduce costs […]
Optimization of Abandoned Mine Drainage Treatent by Commercially Available Nanofiltration Membranes
Abandoned or acid mine drainage (AMD) is characterized with high sulfate and metal ion concentrations and acidic pH and has been a pervasive environmental concern for over five decades. Problems […]
