Ceramic membranes
Hyflux Ltd. has launched its second-generation hollow fiber ceramic membrane. The InoCep membranes combine the simplicity and compactness of polymeric hollow fiber membranes with the hardiness of ceramics, making it suitable for highly demanding applications that involve high temperatures, pressures, and/ or aggressive solvents. Exploiting the characteristics of improved Al2O3, the membrane is capable of sustained filtration in temperatures of up to 120 deg. C and is able to withstand the full range of pH values (from 0 to 14). Another key feature is its hollow fiber configuration, which has the ability to filter from both "inside-out" and "outside-in". Its crossflow configuration also reduces fouling drastically, ensuring longer operating durations and less down time.
Hyflux CEPAration Technologies BV
The Netherlands
Web: www.hyfluxmembranes.com
Seawater desalination
Toray Industries, Inc. and Toray Membrane USA have introduced two new models for seawater desalination, the TM820S-400 and TM820V-400 reverse osmosis membrane elements. TM820S-400 has low energy consumption (9,000 gpd at 800 psi) with high boron rejection (90% at pH 8). TM820V-400 also has the same low energy consumption but higher boron rejection (92% at pH 8). Toray also offers two low fouling models of TM720N-400 and TML20N-400 brackish elements. TM720N-400 offers low delta pressures and low fouling by using a 34 mil spacer. TML20N-400 with 34 mil spacer also demonstrates fouling resistance and can be applied to waters with higher suspended solids.
Toray Membrane USA Inc.
Poway, CA
Tel: 858-218-1518
Web: www.toray.com
RO systems
Pentair Water Commercial & Industrial Purity Solutions (CIPS) has introduced Deluxe HighPure RO Commercial/Industrial Reverse Osmosis Systems designed to solve a variety of water problems in ingredient water, high purity rinse water, boiler feed water, ion exchange pretreatment, lab and analytical testing, drip irrigation, community water vending and a host of additional applications. To ensure quality permeate water production, systems include a continuous digital TDS meter, along with automated control, status lights and digital error codes that allow operators to closely monitor water quality and system status. Six models are available to suit specific market or application needs, with capacities ranging from 1,800 to 12,240 gallons per day.
Pentair Water Commercial & Industrial Purity Solutions
Brookfield, WI
Tel: 603-749-1610
Web: www.pentairwater.com
Compatibility, performance studies
International Products' research laboratory is now capable of performing filter membrane compatibility and performance studies using a versatile lab filtration system. The company can evaluate any type of membrane media, from UF to RO, and its interaction with different cleaners. The goal is to recommend the most effective cleaner for specific applications to help users achieve maximum flux results. The lab unit can be tailored to mimic real-life filtration scenarios.
International Products Corp.
Burlington, NJ
Tel: 609-386-8770
Web: www.ipcol.com/membranetest
Ultra-Filtration system
Miller-Leaman has introduced a Ultra-Pure ultra-filtration membrane system designed to remove suspended particulate, bacteria, colloidal, and high molecular-weight contaminants from source water. Target applications include wastewater, reuse water, municipal, textiles, pulp & paper, pharmaceutical, plastics, and electronics. The system provides high quality effluent water, removing total suspended solids greater than 0.1 micron and producing output water turbidity of less than 0.1 NTU. Each membrane has 460 square feet of surface area operating at less than 15 PSI, reducing energy costs compared to other systems.
Miller-Leaman Inc,
Daytona Beach, FL
Tel: 800-881-0320
Web: www.millerleaman.com
Screening system
The TurboDrum series from Headworks has been specifically engineered to meet the higher levels of screenings required by modern municipal wastewater facilities. Innovative advances in water treatment such as Membrane Bio Reactor (MBR) and Moving Bed Biofilm Reactor (MBBR) processes require finer screenings removal (liquid-solid separation) on the front-end. The new screens are available in a wide range of hydraulic and separation capacities to allow customization for the most effective screening solutions. Modules for use in a channel or for pumped flow are available.
Headworks® Inc.
Houston, TX
Tel: 713-647-6667
Web: www.headworksusa.com
Brackish water RO element
The optimized design of the DOW™ FILMTEC™ BW30XFR-400/34i creates a high rejection and high productivity element to purify waters with biological and organic fouling tendencies. Incorporating the company's proprietary BW30XFR membrane sheet, the RO elements allow demineralization and other water treatment systems to operate more consistently with less cleaning and maintenance. The module maintains reliable system integrity due to the iLEC™ technology (interlocking end-caps), which minimizes the risk of o-ring leaks that can contribute to poor water quality.
Dow Water & Process Solutions
Minneapolis, MN
Tel: 800-447-4369
Web: www.dowwatersolutions.com
MBR systems
Puron™ MBR systems from Koch are used for some of the toughest wastewater treatment applications, including sewage treatment for municipalities and treatment of wastewater for the beverage, textile, food, paper, and chemicals industries. The single header design with a free floating membrane fiber tip combined with the centrally located air scour nozzle delivers optimal solids management and reliable operation at peak flux rates, while using 50 percent less air scour energy than other submerged MBR membrane modules. The company's MBR modules are available in configurations with 1500, 500 and 250 square meters of membrane area.
Koch Membrane Systems Inc.
Wilmington, MA
Tel: 888-677-5624
Web: www.kochmembrane.com
Self-Cleaning filters
Amiad offers automatic self cleaning filters. Its stainless steel, woven screen filters are available down to 10 microns and its automatic microfiber (AMF) filtration systems down to 2 microns. They are used to protect membranes from abrasive and clogging sediment, biofouling and invasive species such as zebra and quagga mussels. Reliable pre-filtration helps extend the life of membranes, reduce chemical cleaning and improve performance. The filters require minimal back flush water, have low energy demand and feature a compact footprint.
Amiad Filtration Systems
Oxnard, CA
Tel: 800-969-4055
Web: www.amiadusa.com
RO energy recovery
Energy Recovery Inc. has introduced the PX-300 device to the company's portfolio of PX Pressure Exchanger® (PX) technology. The new device is the highest-capacity energy recovery device offered by ERI. It dramatically reduces energy usage and associated costs for seawater desalination plants, handling flow rates of 300 gpm per device. The modular, standardized design allows the system to be used in the world's largest desalination plants. It can improve the energy efficiency of seawater reverse osmosis (SWRO) by up to 60 percent.
Energy Recovery Inc.
San Leandro, CA
Web: www.energyrecovery.com
Membrane treatment systems
Doosan Hydro Technology is a global company specializing in membrane treatment systems for the Water/Wastewater Industry. The company has a long standing global reputation for providing design, manufacturing and supply of custom engineered water and wastewater treatment plants. Its mission is to provide solutions based on customers' needs. Continued success is based on world-class membrane technology experts, innovative research and development team, strong financial resources and ability to vertically integrate.
Doosan Hydro Technology, Inc.
Tampa, FL
Tel: 813-805-8854
Web: www.doosanhydro.com
Filter systems
Eaton Corp. has announced availability of a new line of filters, the LOFMEM™ membrane filter, the LOFPLEAT™ pleated filter, the LOFTREX™ depth filter, and a series of specialty filters marketed under the brands LOFSORB™, LOFMET™, and LOFCLEAN™ that are engineered to handle a wide range of liquid process applications across a broad range of industries. The LOFMEM Series Membrane Cartridges are absolute rated filters designed to provide repeatable, sub-micron level filtration; LOFPLEAT Series Cartridges offer a pleated configuration that provides higher surface area than depth filters for greater dirt holding and longer on-stream life.
Eaton Corp.
Cleveland, OH
Web: www.filtration.eaton.com
Membrane module
inge watertechnologies AG has introduced the dizzer® 5000plus MB 1.5 membrane module. The new module is based on the company's Multibore® ultrafiltration technology, which means that its membrane is extremely resistant to the action of mechanical and chemical agents. The capillary diameter of the MB has been enlarged to 1.5 mm from the 0.9 mm dimension of the standard modules. This product caters to the fast-growing market of treatment systems for drinking water and water for industrial use. It is particularly suited to treating highly concentrated backwash water from UF facilities or sand filters.
inge watertechnologies AG
Greifenberg, Germany
Web: www.inge.ag/index_en.php
Membrane Bioreactor
The Norit Airlift™ Membrane BioReactor (MBR) is a compact purification system that combines the biological degradation process with a membrane separation process. This combination offers several significant advantages over a conventional activated sludge system, including higher biomass concentration and less sludge carryover. The higher biomass concentration results in a more compact system. The decrease in sludge carryover reduces the need to post-treat the effluent. The system uses an ultrafiltration membrane solution that is placed outside the bioreactor. This offers a simple and easy to maintain stand-alone system that is fully enclosed and does not expose the operator to fumes or sludge.
Norit Americas Inc.
Tel: 617-901-7545
Web: www.xflow.com
Brackish water treatment
Hydranautics has announced its enhanced LD (Low Differential pressure) Technology™, which is being used for two new spiral wound brackish water products, CPA5-LD and ESPA2-LD. LD Technology™ is a culmination of new advancements in biofouling and colloidal fouling reduction, and in the cleanability of these spiral elements. It consists of improved, more robust polyamide chemistry, innovative spacer geometry design to minimize the trapping of small colloidal particles, and enhanced chemical properties to minimize the proliferation of bacteria in the element. The result is longer element life, reduced chemical and labor costs associated with cleaning, and less system down-time.
In a recent plant study, the CPA5-LD had approximately 2 bar lower differential pressure (1 bar versus ~3 bar) for most of the 250 day test, compared to conventional style elements. Additionally, the number of Clean in Place (CIP) cleanings was drastically reduced, from 5 to 0 during the 250 day test.
Hydranautics, A Nitto Denko Co.
Oceanside, CA
Tel: 760-901-2500
Web: www.hydranautics.com
High strength MBR
The BioBarrier® HSMBR® (High Strength Membrane Bioreactor) is suited for use in clustered subdivisions and commercial developments for water reuse applications, including surface irrigation. The pre-engineered modules ship installation-ready and fit into both new and existing tank configurations for applications of flows between 1,500 – 9,000+ gallons per day. The system, available from Bio-Microbics, features flat-sheet membranes that use micro-sized pores for physical separation of solids from the wastewater. The system's unique operation sequence requires no complicated backwash functionality and is completely automated using an advanced control strategy.
Bio-Microbics Inc.
Tel: 800-753- 3278
Web: www.biomicrobics.com
Filter cartridges
Nano-Key™ filter cartridges from Keystone Filter use advanced nanofiber technology to filter both through electro-adhesion and mechanical processes. The cartridges feature ceramic nanofibers on a micro-glass matrix, provide outstanding reduction of virus, bacteria, cysts, endotoxin and many other submicron particles. Additional features include pure-polypropylene support components and standard 2 3/4" dia. single layer cartridges or unique multi-layered Giant® 4 1/2" dia. cartridges. Potable water applications for the Nano-Key™ filter cartridges include RO pre-filtration, beverage bottling and agriculture. Industrial and wastewater applications include industrial water, semi-conductor, pharmaceutical and wastewater treatment.
Keystone Filter, Met-Pro Corp.
Hatfield, PA
Tel: 800-822-1963
Web: www.keystonefilter.com
Rotary drum screen
Vulcan Industries will introduce its new line of rotary drum screens with perforated media at WEFTEC ‘09. The company has taken its durable Rotary Drum Screen and added new filtering media choices required for downstream processes needing protection from fibrous materials. Potential uses include membrane bioreactors, integrated fixed film activated sludge, moving bed bioreactors or other applications where stringy or fibrous material can impact process efficiency. The design allows flexibility to customize the screening elements to specific application needs.
Vulcan Industries
Missouri Valley, IA
Tel: 712-642-2755
Web: www.vulcanindustries.com
Screens
Hydro-Dyne Engineering's Hydro-Flo™ is a water and wastewater screen specifically designed to protect sensitive process equipment such as membranes. It features a proprietary sealing system that ensures a tight tolerance of protection down to 1mm in all locations on the screen, including areas that other screens leave vulnerable. The screens feature all stainless steel construction, and no screen bypass or carry-over.
Hydro-Dyne Engineering
Oldsmar, FL
Web: www.hydro-dyne.com
MBR system
The MemPulse™ MBR System from Siemens Water Technologies uses a mechanical device that supplies irregular pulses of air to the MBR module. This decreases operation and maintenance costs, reduces energy consumption, and increases scouring effectiveness. The process can be used with a wide range of municipal and industrial wastewater treatment applications, including water reuse, new housing developments, parks and resorts, and turnkey projects. It can also be retrofitted to existing plants wishing to replace conventional clarification processes with membrane separation.
Siemens Water Technologies
Tel: 800-525-0658
Web: www.water.siemens.com
More Membranes Current Issue Articles
More Membranes Archives Issue Articles
