Case study detailing the process undertaken to develop a new 15 million gallon per day microfiltration water treatment facility in Westminster, Colorado. An in depth look at pilot testing available process equipment, system design and facility start up after construction....

This paper provides an overview of utilizing nanofiltration membrane technology to remove more than 98% of sulfate from the brine and increase the salt removal efficiency of the Paradox Valley Salinity Control Injection Facility...

Operation and maintenance experience of three different energy recovery systems at the seawater RO plant at Guantanamo Bay, Cuba....

A review of 40 years of seawater desalination at Guantanamo Bay, Cuba....

This paper will present advantages and disadvantages between the pressure and submerged membrane systems, challenges of incorporating two different systems in one facility at the Town of Erie, present results between the two systems based on evaluations of both pressure membrane plant operation and submerged membrane plant operation....

This paper describes Membrane Integrity Testing parameters from pilot to full scale for three different membrane manufacturers. Three municipalities in Colorado, City of Thornton, Town of Erie and City of Westminster have integrated advanced membrane processes at their facilities, each by a different membrane manufacturer...

This presentation provides an overview of a new RO Plant to resolve hardness, sulfate, and nitrate Issues. Reference is made to how pilot testing provided valuable data for final design. The selected membrane and chemicals allowed for maximized recovery, while providing high reduction In iron and hardness and flexibility in operations of the p...

This paper is a case study that compares five different industrial membrane treatment units in an effort to evaluate the potential installation of a new permanent water treatment plant facility to replace the current leased water treatment trailers, resolve the water quality issues associated with finished water, and address current concerns with f...

Two recent membrane installations have shown two very different applications in two different regions with two types of membranes. This paper details lessons learned from the design, construction, and startup of two membrane systems, how they are similar, and how they differ. One is in the City of Bossier City, LA a new 25 MGD microfiltration ...

Reliability is a major consideration in a treatment system supplying boiler feed and cooling tower makeup for a refinery. Many redundant components and operating features were incorporated in the water supply to the National Cooperative Refinery Association facility in McPherson Kansas that treats fresh ground water, wastewater effluent, and chlori...

The use of membrane water treatment technology in the midwest is gathering momentum. There are significant reasons for this: changing water quality, the need for more robust water treatment, and emerging contaminants of concern. This presentation will summarize recent activity in both the municipal and industrial sectors, identify target contamina...

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The Town of Erie (Town), Colorado operates a water treatment plant with both pressurized and submerged ultrafiltration systems side by side. There are few facilities world-wide that have side by side systems limiting the ability for actual operational comparisons. This paper will provide a comparison of the pressure and submerged systems operati...

Membrane filtration plants require chemical cleaning to maintain productivity. However, cleaning practices vary greatly among operating plants due to differences in manufacturers, needs of the system, and training of plant staff. This presentation examines cleaning practices from two operating plants to compare similarities, contrast differences,...

Cherokee Metropolitan District (CMD) outside of Colorado Springs, CO currently operates a 4.8 mgd maximum month flow water reclamation facility (WRF) with sequencing batch reactors (SBRs) and ultraviolet disinfection. The WRF effluent is discharged to several rapid infiltration basins. The facility has a permit limit of 400 mg/L total dissolved sol...

Cherokee Metropolitan District (CMD) outside of Colorado Springs, CO currently operates a 4.8 mgd maximum month flow water reclamation facility (WRF) with sequencing batch reactors (SBRs) and ultraviolet disinfection. The WRF effluent is discharged to several rapid infiltration basins. The facility has a permit limit of 400 mg/L total dissolved sol...

The City of Thornton (City), Colorado operates a 50 mgd water treatment plant (WTP) with a submerged ultrafiltration system. The Wes Brown Water Treatment Plant was originally constructed as a lime softening and conventional filtration plant. In 2005, the WTP was converted to a submerged membrane filtration plant using Suez membranes with coagulati...

The City of Thornton (City), Colorado operates a 50 mgd water treatment plant (WTP) with a submerged ultrafiltration system. The Wes Brown Water Treatment Plant was originally constructed as a lime softening and conventional filtration plant. In 2005, the WTP was converted to a submerged membrane filtration plant using Suez membranes with coagulati...

This paper is the first part of a three-part session entitled “Guidance for Existing MF/UF Facilities: When is membrane replacement recommended, what are the viable options, can costs be reduced and performance improved”. The three-part session will provide current available options for Owners for replacement, retrofits, and an overview of open...

This paper is the first part of a three-part session entitled “Guidance for Existing MF/UF Facilities: When is membrane replacement recommended, what are the viable options, can costs be reduced and performance improved”. The three-part session will provide current available options for Owners for replacement, retrofits, and an overview of open...

Poor performance from membrane filtration plants causes higher operating costs and can limit production. Performance issues generally can be classified as either fouling or fiber breaks. Fouling is a pervasive issue in membrane filtration impacting all facilities at some level. Fouling left unchecked compounds into irreversible damage to the membra...

Poor performance from membrane filtration plants causes higher operating costs and can limit production. Performance issues generally can be classified as either fouling or fiber breaks. Fouling is a pervasive issue in membrane filtration impacting all facilities at some level. Fouling left unchecked compounds into irreversible damage to the membra...