Using Thin Film Nanocomposite (TFN) Brackish Water Reverse Osmosis Membranes to Provide Greater Confidence for NDMA Removal
A thin film nanocomposite reverse osmosis membrane has reported improved rejection for nitrosodimethylamine (NDMA) versus conventional thin film composite polyamide reverse osmosis. Lab tests indicate NDMA was removed at rates […]
Removal of Fluorides, Arsenic and Nitrates from Groundwater: Technology Selection
An engineering study was conducted comparing reverse osmosis and activated aluminum filters for most cost effective removal of fluoride, arsenic and nitrates from a City of Goodyear Arizona well source. […]
Forward Osmosis for Brine Concentration in Industrial Applications
Forward osmosis is a technology which uses a customized reverse osmosis membrane and a draw solution for desalination. It becomes viable when conventional reverse osmosis is limited by a high […]
Pilot Testing of SAT, NF, O3, BAC for Potable Reuse for Inland Applications
The City of Tucson AZ are planning for potable reuse using a municipal secondary wastewater effluent. The technologies piloted were Soil Aquifer Pretreatment (SAT), nanofiltration (NF), ozonation, Biological Activated Carbon […]
Sodium Chloride Removal
The conventional approach to desalting brackish waters is to use reverse osmosis (RO) with a blend stream to achieve a desired target water quality. Sulfuric acid is typically dosed in […]
Virus Removal Capabilities of an MBR System in a Full-Scale Water Reclamation Facility
The paper portion of this file discusses a pilot ceramic membrane at El Toro CA Water Recycling Plant. The PowerPoint portion of this file discusses the virus removal capability of […]
Sulfuric Acid Pretreatment Elimination Reduces OPEX for City of Palm Coast?s Membrane Softening Plant
Eliminating sulfuric acid injection in the NF feed at the City of Palm Coast site improved cartridge filter run times and led to a significant reduction in chemical consumption. The […]
Groundwater Replenishment Performance and Operations Lessons Learned During Clearwater?s One Year Pilot
This paper outlines issues that affected the operations of the groundwater replenishment treatment train at the City of Clearwater and the lessens learned that were later incorporated into the full-scale […]
Case Study – Plantation East and Central Water Treatment Plants Scale Inhibitor Pilot Testing
Pilot testing of several scale inhibitors was conducted at the EWTP to determine suitability of these products with the existing water supply, treatment process recovery and new membrane elements. Initial […]
Comparative Capiltal Costs for Ceramic and Polymeric Membranes
Ceramic Microfiltration (MF) membranes are compared cost wise to polymer based MF and ultratfiltration (UF). Present Worth Cost of 20-years show comparable long term costs. Ceramic membranes are said to […]
