Winschel Environmental, LLC Pump and Process Equipment
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MEMBRANE FILTRATION

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Reverse Osmosis & Nanofiltration

Reverse Osmosis (RO) & Nanofiltration (NF)
Wigen is a leading provider of industrial and municipal RO and NF systems with capabilities that include: engineering, manufacturing, site supervision, commissioning and operator training. We have been designing and building RO and NF systems since the early 1990's and have hundreds of successful installations throughout the world. Like the rest of our products, all of our RO and NF systems are designed and built for the client's specification application. Taking into account the influent water quality and temperature, as well as, permeate and concentrate requirements, Wigen is able to create custom solutions that are cheaper than other's catalog offerings. Systems can range in size from a few gallons per minute to millions of gallons per day. Most of our designs include the required pretreatment systems (equipment and chemical) in order to reduce or eliminate fouling and scaling of the membranes.
Common Applications
  • Surface Water Treatment
  • Industrial Process Separations
  • Boiler Feed Water
  • Cooling Tower Makeup
  • Industrial Wastewater Treatment
  • Municipal Drinking Water
  • High Purity Pre-treatment
Typical Features
  • Welded and Powder Coated Steel Skid Frames
  • Low Energy or High Rejection Membrane Elements
  • FRP Pressure Vessels
  • Welded Stainless Steel High-Pressure Pipe Work
  • 5-micron Pre-Filter and Housing
  • Integrated Process Controls
  • Automatic Inlet Valve
  • User-friendly Microprocessor Controls
  • Automatic Flush System
  • Pre-Filter, Post-Filter, Primary, and Final Pressure Gauges
  • Permeate and Concentrate Flow Transmitters
  • Inlet and Permeate Conductivity Transmitters
  • Pressure Transmitters
  • (CIP) Clean-In-Place System with Heated Mixing Tank
Optional Features
  • Stainless Steel Skid Frames
  • U.L. 508A Control Panel Fabrication
  • Redundant Booster Pump(s)
  • Chemical Dosing Systems (Anti-Scalant, Acid, Bi-Sulfite)
  • Chlorine and/or pH Monitoring Systems
  • Allen-Bradley® PLC/HMI/VFD Controls
  • Remote Data Interface via User-Defined Network Protocol
  • Permeate Storage and Distribution Systems

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Ultrafiltration

Ultrafiltration (UF)
Our UF systems are usually operated in a pressure range of 10 to 50 psig and they remove particulate via size exclusion down to as low as 0.02 µm. Typical flux (rate of finished water permeate per unit membrane surface area) for UF is 10-100 gallons per square foot per day (gfd).
Wigen UF membrane systems use advanced hollow fiber or ceramic technologies operated in the outside-in or inside-out direction of flow. Given the small membrane pore sizes used with these technologies, fouling due to deposition of organic and inorganic compounds on the membrane may occur if the system is not properly designed and operated. Therefore, we use automated backwashing, air scour and chemical flushing processes to maintain the rate of membrane fouling within acceptable limits. Chemical cleaning is employed once a maximum transmembrane pressure has been reached. Typical cleaning agents utilized include acids, caustic, surfactants, enzymes and certain oxidants, depending upon membrane material and foulant type.
Common Applications
  • Municipal drinking water filtration (meets US EPA LT2ESWTR)
  • Iron & Manganese Removal
  • Industrial Wastewater Recovery
  • COD Reduction
  • RO & NF Pre-treatment
Typical Features
  • Welded and Powder Coated Steel Skid Frames
  • High Quality Membrane Elements
  • Module Housings with Sampling Ports
  • Stainless Steel Feed Pump
  • Stainless Steel Schedule and/or 80 PVC Pipe Work
  • Automated Control Valves
  • Integrated Process Controls
  • Automatic Backwash System
  • Pressure Gauges
  • Flow Transmitters
  • Pressure Transmitters
  • (CIP) Clean-In-Place System with Heated Mixing Tank
Optional Features
  • U.L. 508A Control Panel Fabrication
  • Allen-Bradley® PLC/HMI/VFD Controls
  • Remote Data Interface via User-Defined Network Protocol
  • Redundant pumps
  • Feed and Process Tanks
  • Stainless Steel Skid Frames
  • VFD's
  • Hypochlorite & Acid Dosing
  • Coagulant Feed System
  • Gravity Drain Tanks

Winschel Environmental, LLC
PO Box 453
Powhatan, VA 23139
Phone: 804-545-3115
Fax: 804-915-8982
Contact: Matthew J. Winschel, PE
[email protected]
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