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Water TreatmentFiltering & Recycling Your Water
Phone: +1.716.693.9381
www.durcofilters.com
Proven, Trusted Solutions™
“We at ASCENSION INDUSTRIES take pride and satisfaction in continuing the 130+ years of DURCO/ENZINGER quality,
workmanship, innovation, and traditions. “PROVEN, TRUSTED SOLUTIONS” is more than a legacy, it is the commitment
and motivation we live by and eagerly share with our customers.”
- Jack Kopczynski, President
Durco Filters filtration systems are used worldwide in the most demanding water and wastewater applications. Our strength is in combining our innovative technology with over 130 years of industry experience to provide economical and effective filtration systems.
Helping ensure a healthy environment is a responsibility that all of us share. When you choose us for your water or wastewater application, you are in good company. Here are some of our customers:
Chemical Waste Mgmt
Ciba Geigy
Cintas
Crystal Mtn. Water
Dow Chemical
Eveready Battery
General Electric
General Motors
Hewlett PackardHonda (USA)
HoneywellIBMICI AmericaInternational SteelLockheed Martin
MexinoxNorth American WaterTexas InstrumentsU.S. SteelVeolia Water
Filter press for waste sludge dewatering
Tubular backwash filter systems used for applications including; RO pre-filtration, nozzle protection and cooling tower water filtration
Pressure leaf filters used for water and wastewater filtration
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.
Sludge dryer used to reduce volume of generated waste sludge
2
Durco Filters - Filtering & Recycling Your Water
Permanent media
Sub-micron retention
Proven in thousands of aggressive and harsh installations
Best clarification to improve production yields
Lowest operation cost
Efficient, safe, and easy to use
Used in water and wastewater applications
Various configurations to meet your installation and application needs
Pressure Leaf Filters
Municipal Water Pressure Leaf Filter
Permanent media
Low maintenance
Clean-in-place (CIP)
Completely automated
Protects nozzles, RO systems, heat exchangers, and other process equipment systems from fouling by solids
Tubular Filters
Maximum durability for harsh environments and applications
Configurations to meet your needs economically
Best method to achieve highest product purity and driest cake
Ensures removal to meet EPA requirements
Mobile dewatering systems available
Proven in thousands of sludge dewatering installations
Filter Presses
Drinking Water Prefiltration System
Multi-Tubular Water Filter
Steamheated Sludge Dryer
Phone: +1.716.693.9381
www.durcofilters.com
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.
Mobile Wastewater System
Can reduce sludge volume by up to 90%
Will make sludge waste landfill safe
Easily handles hydroxide and metal finishing waste
Sludge Dryers
3
Proven - Expertise in Water Filtration
Metallic Hydroxide/Sulfide/Carbonate Wastewater Process
Cooling Tower Protection:Basin Cleaning Protection
RO Prefiltration and CIP
Tubular Backwashing Filter
Pump
Basin
Cooling Tower
Feed PumpPre-treatment + Chlorine removal
High Pressure Pump
CIP Pump
CIP Tank
RO Module
RO Reject Water
RO Product Water
Tubular Backwashing Filter
Tubular Backwashing Filter
Phone: +1.716.693.9381
www.durcofilters.com
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.
Pressure Leaf Filter
Equalization Tank
1. Caustic (NaOH)
2. Hydrated Lime (Cn(OH)²
3. Sulfide (NaHS)
Add 1, 2, or 3 or any combination
Precipitation Tank/Mixer
Coagulation and FloculationTank/Mixer
pH Adjustment
Polyelectrolyte Floculant
Coagulants (Lime, Fe or Al Derivatives)
ClarifierHolding Tank
Discharge to Effluent
OR
RecycleOR
Further Treatment
Sludge Thickener Holding Tank
Filter Press
Filtrate Recycle
Metallic Wastewaters
MnZnCuNiHgCrCdPbAsFeCoSn
Dewatered Cake to Landfill
4
Durco Filters - Filtering & Recycling Your Water
Metallic Hydroxide/Sulfide/Carbonate Protecting Spray Nozzles
Paper Mill - Pulp Slurry White Water Re-Use
This Durco Filters Tubular Backwash Filter System has handled 17,996,800,000 gallons of water since its installation in early 1987.
If you were to put each filtered gallon into a 1-gallon can, it would create a stack of cans that would reach to the moon more than 14 times!
Our systems are very reliable while achieving significant energy savings and reducing consumption of chemicals.
Spray nozzles are used in various equipment from scrubber systems to paper making. Durco Filters Tubular Backwash Filter Systems offer continuous self-cleaning operation through sequential backwashing of individual filter elements. We can design a system to keep your nozzles flowing at peak performance.
18 Trillion Gallons and Counting!
Phone: +1.716.693.9381
www.durcofilters.com
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.
The Problem: A prefilter step passes the raw white water through a device called a Saveall. After passing through, the white water still contains small amounts of fibers. Since these fibers have been mechanically and chemically treated to interlock and form a sheet of paper, they tend to form lumps and knots that can harm downstream systems like knock off showers that contain calibrated directional spray nozzles.
The Solution: A Durco Filters TF Tubular Filter ‘Polishing’ System efficiently removes the trace quantities of cellulose paper fibers from the prefiltered white water stream. For shower system spray nozzle protection, the required filter retention is typically calculated by dividing the nozzle orifice size by a factor of 6. For example, for a 0.035 inch orifice, a filter retention of 0.006 inches is required.
5
Trusted Solutions - For Water Filtration Needs
Removing these contaminants from drinking water is critical for health and safety reasons. Our pressure leaf filters offer a safe and economical way to remove these harmful agents. The Lamblia Giardia and Cryptosporidium are removed along with particulate and organic solids.
Lamblia Giardia and Cryptosporidium Removal
Complete Systems to Meet Your Needs
Let our skilled team of engineers and application specialists help you to create the ideal solutions for your filtration application.
Major aircraft company’s wastewater application
Typical Applications in Water and Wastewater Treatment:
Membrane system protection
Well, lake, and river water
Agricultural irrigation water
Industrial metal precipitates
Municipal water
Bearing and seal cooling water
White water - pulp mills
Cooling towers and hot/cold wells
Wet scrubber wastewater
Utility intake water
Sea water, desalination and brackish water
Produced and “frack” water treatment
Phone: +1.716.693.9381
www.durcofilters.com
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.6
Durco Filters - Filtering & Recycling Your Water
Product OverviewLamblia Giardia and Cryptosporidium RemovalPressure Leaf Filter
Typical Applications: Mining, Molten Sulfur, Specialty Chemical, Biofuel, Amine, Pharmaceuticals, Chlor-Alkali, Brewery and Winery, Edible Oils, Sugar, Juice
Pressure Nutsche
Typical Applications: Pharmaceuticals, Specialty Chemicals, Pilot Studies, Small Batch Products
Tubular Backwashing Filter
Typical Applications: Pulp and Paper, Water, Amine, Specialty Chemical, Mining, Cooling Tower, Petrochemical, Food & Beverage, Corn Syrup, RO Protection
Filter Press
Typical Applications: Mining, Chemical, Industrial Waste Water, Pigments, Salt Precipitation, Environmental
Sludge Dryer
Typical Applications: Inorganic Metal Hydroxide, Uranium Drying, Hazardous Waste
Complete Process Solutions
Ascension Industries offers a full range of capabilities from design to turnkey manufacturing with extensive experience in skid-mounted process systems, machine assemblies, and more.
Phone: +1.716.693.9381
www.durcofilters.com
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.7
Publication: A.22.C.4
01/2013
10,000
1,000
100
10
LOG GPM
LOG LPM
LOG PPMLOG % SOLIDS
101 100 1,000 10,0001% 10% 100%
38,000
3,800
380
38
10 100 1,000 10,0001% 10% 100%
SludgeDryers
Filter Presses
Pressure Leaf Filters
Tubular Filters
Pressure Nutsches
Tubular Filters - For applications <220 ppm for biological solids, upwards of 525 ppm for granular solids, high flow rates
Pressure Leaf Filters - Up to 3% solids for easily filtered materials
Pressure Nutsches - Great for piloting, specialty applications, and when the ability to interrupt flow is desired
Filter Presses - For dewatering slurries
Sludge Dryers - Typically used in conjunction with filter presses, reduces cake weight, and volume
Lab Testing
Durco Filters Application Engineers test customer samples to help ensure that our equipment meets the needs of your application. Our lab will determine the optimum set of equipment parameters for each application including: equipment type, sizing, filter media, flow rates, and filter aid requirements.
Parts
We also carry and manufacture a complete line of Durco
Filters spare and replacement parts for all of our filtration systems and products. We stock many parts and can provide 24-hour delivery in emergency situations. Please inquire about:
Pressure leaf filter leaves
Tubular filter bags, and screens
O-rings, gaskets, and filter elements
Sluicers, valves, and controls
Filter press plates and cloths
Pilot Testing
For new or difficult applications, pilot testing on or off-site is recommended. Durco Filters pilot test units confirm feed rates, filter media, filter aids, and other filtration factors supporting optimal operation.
Field Service
Durco Filters Field Service travels the world to keep filtration systems performing at peak efficiency. Services offered include:
System startup
Customer training
Preventive and maintenance contracts
Installation supervision
Emergency repair and service
Equipment upgrades and refurbishments
Applications & Services
1254 Erie AvenueNorth Tonawanda, NY 14120
Phone: +1.716.693.9381
Fax: +1.716.564.9044info@durcofilters.comwww.durcofilters.com
Continuing the tradition of over 130 years of Durco Filters™ quality and innovation, as well as custom turnkey systems, Ascension Industries is your provider of Proven, Trusted Solutions.
ASME Section VIII, China Code (SQL-AQSIQ), European– PED (97/23/EC) | ISO9001:2008
Proven, Trusted Solutions™
Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.
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