Water Treatment - Vision Solutions

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

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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



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

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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



Phone: +1.716.693.9381



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

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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



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.

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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


Durco Filters, and Proven, Trusted Solutions are trademarks of Ascension Industries, Inc.6


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


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


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: [email protected]

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™


Water Treatment - Vision Solutions

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