HIGH-CAPACITY ULTRAFILTRATION ENGINEERING GUIDE

Transcription

1 HIGH-CAPACITY ULTRAFILTRATION ENGINEERING GUIDE German Hollow-Fiber Membrane Technology Point-of-Entry Systems LEGIONELLA & PATHOGEN CONTROL

2 LEGIONELLA & PATHOGEN CONTROL MADE SIMPLE Water Control offers several High-Capacity Ultrafiltration (HUF) tools in the fight to control Legionella and pathogen levels in building water systems. Our HUF systems filter out nearly ALL bacteria, parasites, viruses, and nutrient particulates, with minimal pressure loss. This keeps systems clean, reducing biofilms, fouling, corrosion, and risk of disease outbreak. HOW IT WORKS: High-Capacity Ultrafiltration (HUF) utilizes hollow-fiber membrane technology to catch and remove virtually ANY non-dissolved particulates from flowing water, including (but not limited to) bacteria, protozoans, viruses, and biological nutrients. The filters are comprised of hundreds of tiny straw-like membranes. Raw water enters via the straw end. Each straw has millions of microscopic pores along its sides. The pores are so tiny that water and disinfectants flow through freely, yet particulates do not. Microorganisms and other suspended solids become entrapped inside. System controls continuously monitor flow rate vs pressure loss. When the membranes begin to fill up (and lose their permeability), a drain valve is opened at the opposite straw end. Water flows out to drain at highvelocity, carrying away the particulates. The membranes are clean and the system goes back into service. Raw Water Feed (Contaminated) Microorganisms Entrapped In Membranes Water Flows Through Freely Filtrate (Pure) Drain Features: % bacterial, protozoan, and sediment reduction % viral reduction (third party verified) - Flow-through filter design (no constant waste stream) with minimal pressure loss - Dissolved substances remain in water (disinfectants, minerals, etc.) - Long membrane life (8-0 year typical) with EPA-compliant integrity verification system Water Control proudly features hollow-fiber membrane systems by German innovators Seccua GmbH Point-Of-Entry HUF: Typical Installation 3 3 Bypass Filters Solenoid Valve* (NC) 3 Air Vent ** *Solenoid to open when filtrate valve closes and close when filtrate valve opens **Air vent must be located at high point in filtrate line to release air from the Integrity Test To Drain Bladder Tank 4 Temporary Bypass System (log 4 electropositive removal) (Optional) Main Inlet (NC) 00 Micron Bag Filter Sample & Disinfection Port Ultrafiltration System Sample & Disinfection Port - Included with ultrafiltration system - Provided and installed by contractor 3 - Included with the bypass package option 4 - Flow through bladder tank(s) quoted as separate line item Install softener and booster pump downstream of ultrafiltration system (as needed) System Outlet

3 POINT-OF-ENTRY SYSTEMS: Standard Units System SYSTEM SPECIFICATIONS Continuous GPM Flow¹ Standard Short Term # of membranes Configuration Hydro Tank Peak Draw PSID PSID PSID PSID PSID Vol (gal) (GPM)³ Standard System Dimensions: Req. Space (LxWxH)⁴ Inlet/Outlet Connections Virex Pro Wall-Mount x 3 x 78 " NPT 7 0 Phoenix GT- Floor Skid N/A² x 36 x 84 " FLG 6 0 Phoenix GT- Floor Skid x 48 x 84 3" FLG 5 0 Phoenix GT-3 3 Floor Skid X x 48 x 84 3" FLG 78 0 Phoenix GT-4 4 Floor Skid x x 48 x 84 4" FLG 04 0 ¹Assumes 50 F water supply and reasonable-quality city water ²Exceeds maximum possible membrane flux rate ³Equals GPM PSID and 5% of nominal hydro tank volume x min. (piping must be sized adequately) Flush GPM⁵ Flush Duration (sec) ⁴Space required includes 00 micron pre-filter(s) and standard volume hydro tanks (may be arranged differently) ⁵Incoming water pressure must range from PSI (C) (C) C (A) C Phoenix GT-Systems (B) C A B (A) (B) Virex Pro System Dimensions & Weights Model Length (A) Width (B) Height (C) Weight (lb) Virex Pro Phoenix GT Phoenix GT Phoenix GT Phoenix GT s of Construction: > Membranes: Modified polyethersulfone (PES) (hydrophilic, no plasticisers, low fouling) > Membrane potting material: Polyurethane > Membrane housings: UPVC > System piping: Sch. 80 PVC > Skid base: 304 stainless steel All materials are NSF/ANSI 6 COMPLIANT Operating Parameters Min/Max Water Temp 39 F / 04 F Min/Max Room Temp 34 F / 04 F Min/Max Inlet Pressure 30 PSI / 73 PSI Max P Across Membrane 36 PSID Chlorine Tolerance 00,000 PPM hours3 Max Chlorine Concentration 00 PPM Required Pre-Filtration4 00μ Exceeding max operating pressure will damage membrane. Utilize PRV if needed. Avoid water hammer 3Equals chlorine concentration (PPM) x hours of operation Exceeding 36 PSID during filtration may damage membrane (system will automatically shut down) ⁴Pre-filters are included with system quotation

4 POINT-OF-ENTRY SYSTEMS: Additional Components 00 Micron Pre-Filter Assemblies (Included): All Point-of-Entry HUF systems include a required 00 micron pre-filter assembly (field installed) for membrane protection. housings are provided for redundancy. Contractor to install in parallel, with isolation valves on each housing. Inlet/outlet pressure gauges recommended. Pre-Filter Assembly Dimensions & Weights Model Filter Type Replacement Filter Housing Mount Connection Housing Dimensions (L x W x H) Approx. Ship Weight (lb) (ea) Virex Pro 4.5" x 0" BB PS Polypro Wall 7.5 x 7.5 x Phoenix GT- # Bag BEG-00-S 304 SS Floor 3 6 x 6 x Phoenix GT- # Bag BEG-00-S 304 SS Floor 3 6 x 6 x Phoenix GT-3 # Bag BEG-00-S 304 SS Floor 4 6 x 6 x Phoenix GT-4 # Bag BEG-00-S 304 SS Floor 4 6 x 6 x Pre-Filter Assembly Hydropneumatic Tanks (Quoted Separately): Water Control recommends Wessels TXA Series (or comparable) full-acceptance expansion tanks with flow-through connections for prevention of stagnant water. Multiple tanks to be piped in reverse-return. Recommended dry-tank air charge: street pressure less 0 PSI. Hydropneumatic Tank Dimensions & Weights Model Recommended Tank Model Tank Volume (ea) Tank Bladder Connection Dimension (Dia x H) Approx. Ship Weight (lb) (ea) Virex Pro TXA-400-FF (x) 06 Carb. Steel Butyl (NSF).5 30 x Phoenix GT- TXA-600-FF (x) 58 Carb. Steel Butyl (NSF) 30 x Phoenix GT- TXA-800-FF (x) Carb. Steel Butyl (NSF) 30 x Phoenix GT-3 TXA-800-FF (x) Carb. Steel Butyl (NSF) 30 x Phoenix GT-4 TXA-800-FF (x3) Carb. Steel Butyl (NSF) 30 x Hydropneumatic Tank (Photo courtesy of Wessels) Optional Bypass Assemblies: Bypass kits (field installed) include 4V motorized valve, inline check valves (x), inline isolation ball valves(x), filter housings, and double-pleated electropositive cartridge filters (99.99% bacterial removal, 6-month intermittent/0-day continuous use). Contractor to install in series for redundancy. Bypass Assembly Model Service Flow Rate (GPM) # of Filter Housings Cartidges per Housing Bypass Assemblies Dimensions & Weights Electropositive Filter Size Replacement Cartridge Housing Mount Component Connection Housing Dimensions (L x W x H) HUF-BP x 0 P4.5-0DP Polypro Wall x 7.5 x HUF-BP x 0 P4.5-0DP Polypro Wall x 7.5 x HUF-BP x 40 P.5-40DP 304 SS Floor 3 x 0.5 x HUF-BP x 40 P.5-40DP 304 SS Floor 3 x 0.5 x HUF-BP x 40 P.5-40DP 304 SS Floor 3 4 x.5 x HUF-BP x 40 P.5-40DP 304 SS Floor x 6.75 x Total Ship Weight (lb)

5 POINT-OF-ENTRY SYSTEMS: Additional Features Automatic Membrane Integrity Test: A key feature of Water Control s Point-of-Entry HUF systems is the ability to automatically verify membrane integrity. Using a small, integral compressor, air pressure is applied to the filtrate (outlet) side of the hollowfiber membranes. Air pressure loss is monitored for 5 minutes. We use a complex algorithm, per the USEPA Membrane Filtration Guidance Manual, to verify that membranes are intact and high-log removal of microorganisms and nutrients is occurring. This process is compliant with the strict requirements of the USEPA s LT Enhanced Surface Water Treatment Rules. If membranes are compromised (normally after 8 0 years with typical-quality city water), an alarm actuates, and flow stops. Membrane Integrity Testing is normally initiated manually, during off-peak hours (typically monthly or quarterly in commercial building applications). However, systems can be programmed to test automatically, at a specified time of day and frequency. NOTE: Membrane Integrity testing lasts 5 minutes. During this period, filtrate valves are closed and water flow is stopped. Options for providing water to the facility during these periods include hydropneumatic tank storage, redundant Point-of-Entry systems, or one of Water Control s Temporary Electropositive Bypass Assemblies, which provide up to 0 days of purified water between filter changes. Membrane Integrity Test Screen Programmable Logic Controller (PLC): Every Point-of-Entry HUF system includes a standard PLC with lighted LCD display screen and LED light bar, indicating current membrane permeability status. From the control panel, users can access the following: - View current mode, GPM flow rate, and PSID - Initiate a membrane flush or Integrity Test - Manually cycle individual valves, air compressor, and powered accessories - View and reset system alarms - Cycle system into Standby Mode (system OFF, but flushes to maintain clean membranes) A laptop computer with USB connection to the PLC provides advanced setup, control, and monitoring options, including a 3-month datalog of operating parameters (PC laptop, pre-loaded with software drivers, is included with system). PLC Controller Home Screen Connectivity Kit: Systems come standard with an I/O panel for analog and digital inputs/outputs, as well as power to external accessories such as chemical dosing pumps and turbidity monitors. Available inputs/outputs include: - Turbidity sensor signal in (4-0 ma) - Powered ( VDC) general alarm output - GPM flow rate signal out (4-0mA) - Dry contact general alarm output - Chemical feed pump power (0VAC, 6 amp max) - Inlet booster pump run signal (0VAC to external relay) - Remote alert VDC input (used to enable/disable filtration) All systems require a standard, 0V, ph, 60Hz power supply (6 amp max). Connectivity Kit External Communication: Optional gateway hardware is available for BUS integration into Building Automation Systems (Modbus/BACnet). System may also be accessed over the internet, with the addition of an active SIM card into the integral GPRS modem. Contact Water Control for more details on these features.

6 POINT-OF-ENTRY SYSTEMS: Required Maintenance Water Control s Point-of-Entry HUF systems require significantly less maintenance than other pathogen control methods. Recommended schedules for ensuring optimal performance are: - Flush/disinfect membranes: Upon installation or replacement - Membrane Integrity Test (automated): 3-4 months - Replacement of pre-filters: 6 months - Replacement of optional Bypass Assembly filters: 6 months (or post-event) - Calibration of pressure sensors: Annually - Replacement of membranes: Upon failure of Integrity Test (typically 8-0 years) OTHER AVAILABLE HUF SYSTEMS: - Point-of-Use Fixtures, cooling tower feed, humidification, misters, decorative fountains, etc. - Hot Water Recirculation Treatment Use your recirc system for 4-7 Legionella filtration! Point of Use HUF: Typical Installation Point-of-Use HUF: Typical Installation Ultrafiltration System Sample Port (w/hose Connection) 5 Gallon Bladder Tank (Optional) Hot Water Recirculation Treatment: Domestic Typical Hot Water Installation Filtration Systems Recirc Return Line Ultrafiltration System Return to Mixing Valve (Per Facility Design) Sample Port (w/hose Connection) Ball Valve Recirc Pump Ball Valve Water Supply Gate Valve Out to Point-of-Use Gate Valve Return to Heater (Per Facility Design) Pre-Filter (00 Micron Max) Drain Pre-Filter (00 Micron Max) Drain THE WATER CONTROL DIFFERENCE - Easy-to-use system design questionnaires - 3D (Revit ) renditions for every system - Custom AIA Division specifications - Detailed project submittals - Project-specific installation diagrams - Intuitive, adaptable controls - Complete, customized Operation and Maintenance manuals TO GET STARTED with your High-Capacity Ultrafiltration application, download a system design questionnaire at Water Control Corporation rd Ave NW Ramsey, MN Phone: Fax: Water Control Corporation 8