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BETTER WATERS 2 Summary-Municipal v2013-08N
 

BETTER WATERS 2 Summary-Municipal v2013-08N

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SUSTAINABLE, HIGH PERFORMANCE WATER TECHNOLOGIES for MUNICIPAL APPLICATIONS ...

SUSTAINABLE, HIGH PERFORMANCE WATER TECHNOLOGIES for MUNICIPAL APPLICATIONS

1. PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOW

2. POINT-OF-USE FILTRATION, LOW FLOW

3. ULTRAVIOLET DISINFECTION TECHNOLOGY

3. DRINKING/DOMESTIC POTABLE WATER

4. CLEAN WATER

5. WASTE WATER

6. WATER RECLAMATION & REUSE:
STORM WATER REUSE APPLICATIONS
GRAY WATER REUSE APPLICATIONS

7. O3 - OZONATION

8. ADVANCED OXIDATION PROCESS

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    BETTER WATERS 2 Summary-Municipal v2013-08N BETTER WATERS 2 Summary-Municipal v2013-08N Presentation Transcript

    • SUSTAINABLE, HIGH PERFORMANCE WATER TECHNOLOGIESfor RESIDENTIAL, COMMERCIAL, MUNICIPAL, INDUSTRIAL and INSTITUTIONAL APPLICATIONS 1 All properties shown rely on the water technologies presented herein.
    • COMMITTEDto SUSTAINABLE WATER QUALITY and UNIVERSAL ACCESSfor MORE THAN 20 YEARSOur technology recommendations factor multiple considerations: • Intrinsic quality of water produced • Long-term performance • Water efficiency • Energy efficiency • Environmental impact • CostBut we don’t just talk the talk. We sell products.To meet the demands and expectations of our very tough customer base, werelentlessly source the top manufacturers of best-in-class water technologies, toresolve a growing array of water quality concerns and respond to ever tighteningstandards.Our OEM and exclusive distribution relationships are designed to assure ourcustomers a level of water technology performance that consistently exceedsindustry standards. 2
    • GREENWe are a leading supplier of sustainable, high performance water technologies toLEED-Certified projects in New York City and throughout the United States.The US Green Building Council has issued a CIR ruling (Credit Interpretations andRulings CSv2.0 IDc1) awarding an Innovation in Design credit – a LEED point – forprojects that use BETTER WATERS filtration technologies to eliminate the need forbottled water.Over the last twenty years, we have sold and maintained thousands of watertechnology products in continuous use at some of America’s most prestigiousresidential and commercial buildings, Fortune 500 companies, municipalities, hotels,stadiums, health-care institutions and restaurants.Today, in the city where we started and are headquartered – New York – we arehonored to say that every major mechanical engineering firm seeks our expertise onwater technologies for their projects. And most high profile developers in New YorkCity now rely on BETTER WATERS to supply their projects with our water filtrationsystems.Every day, our energy- and water-conserving filtration and disinfection systemssignificantly improve the quality of people’s lives with minimal environmental impact.Whether your project is large or small, we welcome the opportunity to share ourexpertise. 3
    • As environmental considerations have begun to affect decision-making in every realm, water technologies and their applications have shifted from the periphery to front and center. From storm water reclamation, to the imperative of reducing the waste of bottled water plastic, to increasing concerns about the integrity of public water supplies - the subject of water quality and usage is no longer remote, nor are the solutions easy to determine. Accordingly, BETTER WATERS applies its expertise, acquired from decades of experience and continuous research, to advising and clarifying the many choices and considerations that come into play when selecting water technologies. We support both the customers (Owners, Developers, Purchasing Contractors and End Users) and the decision makers (Mechanical Engineers, Architects, Designers and GCs) along the entire path of commitment to quality: We facilitate a seamless transition, from informed decision-making and product specification to successful installation, ongoing operations and personnel training.4
    • MARKETSResidential, Commercial, Hospitality,Municipal, Industrial, InstitutionalConsumer, Corporate, Non-ProfitPrincipal Applications: Domestic potable water Pure and Ultra Pure water Water Reclamation and Reuse: Filtration + Disinfection Storm water for HVAC / cooling tower water, fire suppression, irrigation, other applications Gray water for toilets, shower, laundry, other applications. 5
    • SELECT INSTALLATIONSIn-service or engineer-specified for new construction:TECHNOLOGIES LOCATION ENGINEER ARCHITECTFiltration: building, all apts. The Helena Flack + Kurtz FxFowleFiltration: building Riverside Boulevard, multiple IM Robbins SLCEFiltration: building 555 West 23 Street IM Robbins Steven B. JacobsFiltration: building Riverplace II Cosentini Costas KondylisFiltration: building Chelsea Landmark TS Associates Costas KondylisFiltration: building Yankee Stadium M-E Engineers HOK SportFiltration: building 505 West 37 Street IM Robbins HandelFiltration: building Beekman Tower Jaros Baum & Bolles GehryFiltration: all rooms Element Times Square Gene Kaufman Gene KaufmanFiltration: building Emerald Green IM Robbins Steven B. JacobsFiltration: building Queens West, multiple IM Robbins ArquitectonicaFiltration, UV, ozonation: storm water Thurgood Marshall Federal Courthouse WSP Flack + Kurtz Beyer Blinder BelleFiltration: building, HVAC One York Street ADS Engineers Enrique NortenFiltration, UV, Softening: buildings, fire ExxonMobil new HQ, Houston, TX Cosentini Genslersuppression, drinking waterFiltration: building Hudson Yards AKF, Cosentini, Ettinger variousFiltration, UV: building, storm water 99 Church Street WSP Flack + Kurtz Robert A.M. SternFiltration: building 56 Leonard Street Cosentini Herzog & de MeuronFiltration, UV: storm water 900 New York Avenue, DC Cosentini Pickard ChiltonFiltration: building 2182 Broadway Dagher Cook + FoxFiltration: building 432 Park Avenue WSP Flack + Kurtz Rafael VinolyFiltration: building 625 West 57 Street Dagher Bjarke Ingels 6
    • WATER TECHNOLOGIES – KEY POINTS 1 - 41. Water constantly changes – from place to place, and from moment to moment. Flow rates and pressure fluctuations also affect water characteristics and quality.2. Water technologies deliver statistical probabilities, not absolutes. The performance and reliability of equipment is expressed as percentages of contaminants reduced. The goal is to reduce contaminants to a negligible or harmless level.3. Applying water technologies is a balancing act. There are always trade-offs in play. Understanding the costs / benefits relationship is an essential part of the equation.4. There is no single “best” solution or technology. It depends both on the nature of the water and the goal. The characteristics of the water entering the system, and the application of the water leaving it, should determine the applicable technology. 7
    • WATER TECHNOLOGIES – KEY POINTS 5 - 75. Different water technologies are required to solve different problems. Filtration and disinfection, for example, are two different technologies that resolve two different concerns. The indicated technologies are sequenced, and because one affects another, each must be correctly specified and calibrated if they are to perform effectively.6. There is no one single standard of water quality universally right for all applications. The concept of “pure” water actually means different things for different purposes. There are varying ideal states of water depending on its use. Consumption, laboratory analysis, irrigation, HVAC systems, and domestic water in a multi- residential building – each one has a different ideal state.7. When specifying water technologies, knowledge and good judgment are vital. People rely on these systems and have a right to be confident in the technologies. 8
    • Taking control of your water qualityTHE IMPERATIVEWater treatment plant managers, project managers and engineers need toensure that water quality is as good as can practically be obtained. Peoplewant the assurance that their municipality cares about their quality of life.Water security is another concern receiving ever more attention.THE PROBLEMLike it or not, many of the world’s raw water sources arevery turbid, or have high sedimentation levels, aconsequence of particles of manganese, iron, silt or clay.THE SOLUTIONHigh-performance automatic pre- and point-of-entry water filtration is acompletely reliable and effective solution that is installed once, and thereafterworks year after year with minimal maintenance. When specified correctly, it isa one-time expense with little ongoing upkeep required. The payoff: Assuringreliable clarity before downstream water technologies, and ensuring equipmentlongevity. 9
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOWAMIAD FILTRATION’S AD1702 SAF series: What makes it unique?An AD1702-AMIAD SAF filtration system filters hundreds of gallons per minute,completely automatically, year after year.Unlike conventional filters, it uses no filtration media and no storage tanks.Responsive to actual water conditions, it takes up little floor space and consumesless than 1/10th the water used by other automatic systems. For a typical largeresidential building, that means saving over one million gallons of water everyyear.How is that possible?Brilliant technology. Particles arecollected against a 316L stainless steelscreen, and automatically flushed outas frequently as needed based oncontinuous measurement of pressuredifferential and/or at pre-set timeintervals. The entire capturedparticulate load is purged typically inless than 20 seconds, at a rate of onlyabout one gallon / sec. Even duringflush mode, the unit stays in service.10
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOWAMIAD FILTRATION’S AD1702 SAF series: How it works.The AD1702-AMIAD SAF models use a sophisticated, patented* self-cleaning screentechnology to achieve high volume filtration in a compact system, with an electricallydriven self-cleaning mechanism. There are four models to cover a range of flow rates;these may in turn be manifolded to achieve higher capacities. A selection of screenswith various filtration pore sizes are available. For NYC water conditions the finestscreens are used to assure particle reduction down to the single-digit micron level.Inlet and outlet diameters range from 2" to 10".Features of a superior technology:1. Water reaches the filtration screen through a protective "pre- screen” and then travels out in reverse direction.2. As particles are collected on the filtration screen, pressure differential builds.3. Self-cleaning – purging of accumulated material on the screen – is indicated after a pre-set pressure differential value or elapsed time, whichever comes first. The amount of water used per cycle is minimal.4. A spiral-rotating suction scanner is then triggered, vacuumingthe accumulated particulate matter and expelling it through theexhaust valve. During the brief flush cycle, the filtered water supplyis not interrupted. Photo: Discharge of* U.S. Patent No. 7,055,699 particle-saturated water into detention tank. 11
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOWAD1702-AMIAD SAF FEATURESFiltration Screen: Amiads proprietary four-layer "floating" screen technologycreates a large effective filtration area. The result:• More comprehensive particle capture• Longer time between flush cycles• Improved cleaning efficiency• Increased long-term durability Cleaning Mechanism: The SAF suction scanner – including its patented spring- loaded nozzles that literally touch the inside of the filtration screen – offers the highest back flush velocity of any such filter on the market, ensuring a 100% clean screen upon completion of the flush cycle. The ability to reliably and completely self-clean is the essential attribute of ongoing, effective filtration. Nowhere is this more true than in highly turbid water conditions. (A system filtering domestic water at point-of-entry for a building in turbid water conditions typically backwashes about six times a day.)Low Maintenance: The completely automated design assures minimal operator maintenancewith labor savings year after year. Small footprint, less water: Hundreds, even thousands, of gallons a minute can be filtered non-stop through equipment that takes up little space and requires minimal water for maintenance. 12
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOWSKID-MOUNTED TWIN FILTRATION for up to 450 GPMThe next generation of our most frequently specified build, theAD1702-AMIAD TWIN 4500EF-SP, two units pre-assembled on a skid,offers a more compact design. Flow rate up to 450 gpm with filtrationscreens assuring 98+% reduction of particles larger than 10 microns. Flush line suction pump on lower right. Control panel on upper left. 13
    • AMIAD FILTRATION CASE STUDY YANKEE STADIUM, New York City AD1702-AMIAD SAF6000EF, x 8 in parallel Point-of-entry: Domestic water supply to stadium Engineer: M-E Engineers Architect: Populous (formerly HOK Sport) In a decisive move to implement green technologies in the public arena, the entire water supply to the new Yankee Stadium is filtered by eight Amiad SAF6000 filters accommodating over 2000 gallons per minute. It ranks among the highest capacity domestic water filtration systems in the United States. All water runs crystal clear, all the time. Fixtures operate more efficiently and with minimal degradation in a clean water environment. The hundreds of submicron filters used in concessions and filtered water coolers downstream retain higher flow rates and last far longer, since they are preceded by Amiad Filtration at point-of-entry which removes particles at the single-digit micron size and14 above.
    • AMIAD FILTRATION CASE STUDY YANKEE STADIUM, New York City Why was a central filtration system installed? After installation, filters may be insulated. During construction, the city ordered a water shutdown for three days. When water service resumed, the buildup of particulates so overwhelmed the downstream fixtures, there was, in the words of an engineer on site, “not a working toilet on premises within 15 minutes”. The owner requested that BETTER WATERS work with engineering to design a filtration system to accommodate the entire water service into the structure, and that would fit within the available space. The same problems had also plagued the old stadium: During games it was routine for so many restroom flushometers to clog with dirt particles, that fans left the stadium before the end of the game thus depriving concessionaires of anticipated revenue.15
    • AMIAD FILTRATION CASE STUDY UNITED STATES FISH & WILDLIFE SERVICE, USA AMIAD SAF6000, Twin Parallel Pond water treatmentFilters supplied with a special ceramic coating material: "Polyglass-Corrocoat".Flow Rate 2500 gpm (568 m3/h)Filtration Degree 500µWater Source Surface water from pondFiltration Solution 2 x 10" SAF6000 16
    • AMIAD FILTRATION CASE STUDY EAST BAY MUNICIPALITY DISTRICT, East Bay (San Francisco), CA AMIAD SAF6000, Twin Parallel Industrial water supplyLarge water district required reduction of organics and algae that were fouling heatexchangers. Installation of SAF6000 Twin in 1998 has been successfully used toreduce these contaminants, without interruption since start up.Flow Rate 2400 gpm (545 m3/h)Filtration Degree 200µWater Source Treated wastewaterFiltration Solution 2 x 6" SAF6000 17
    • AMIAD FILTRATION CASE STUDY CITY OF CARMEL Waste water treatment plant, Carmel, IN AMIAD SAF4500 Service waterFilters effluent water from the treatment process; reuses the water for seals in pumpsand other applications around the plant.Flow Rate 300 gpm (68 m3/h)Filtration Degree 80µWater Source Filtration of secondary water from clarifiersFiltration Solution Single 6" SAF4500 18
    • AMIAD FILTRATION CASE STUDY BUKIT PANCHOR Membrane treatment plant, Malaysia AMIAD SAF3000, x 4 in parallel Pre-Filtration to Reverse Osmosis SystemFlow Rate 1230 gpm (280 m3/h)Filtration Degree 100µWater Source Reservoir catchmentsFiltration Solution 4 x 6" SAF3000I 19
    • AMIAD FILTRATION CASE STUDY WOODLAND PARK ZOO, Washington AMIAD SAF6000 Penguin pool recirculating water treatment94,000 gallon closed loop re-circulation system.Filter delivers water to ozone treatment.Flow Rate 750 GPM (170 m3/h)Filtration Degree 25µWater Source Penguin poolFiltration Solution Single 6" SAF6000 20
    • AMIAD FILTRATION CASE STUDY LAX INTERNATIONAL AIRPORT, Los Angeles, CA AMIAD SAF1500 Airport cooling towerThe filter was rated at 10% side stream onthe full tower flow of 500 gpm.Flow Rate 50 gpm (11 m3/h)Filtration Degree 25µWater Source Cooling towerFiltration Solution Single 3" SAF1500 21
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOW AMIAD FILTRATION’S AMF2 series TSS, NTU and SDI reduction for potable and wastewater applications.The Amiad AMF2 series uses microfiber threadtechnology to create highly effective self- • Effective removal of Cryptosporidium and Giardiacleaning filter systems. cysts.The automatic self-cleaning filters use a unique • Cartridge performance without cartridgefiltration medium constructed of fine threads replacement.wound in layers around a grooved plastic spoolcassette, removing dirt particles as water flows • Outperforms traditional multi-media systems.through multi-layered cassettes to the collecting • Pre-filtration for R/O desalination and other sub-pipes, and out of the filter via outlets. micron systems.The accumulation of dirt particles causesdifferential pressure. At a preset pressure • Provides complete water treatment and filtration solutions for municipalities.differential value or time interval, the control unitactivates the self-cleaning cycle. • Environmentally friendly: No chemical treatmentCalifornia Title 22 approved. required.Filtration degrees available: 2 - 20 micron. 22
    • AMIAD FILTRATION CASE STUDY HARBOUR ISLAND Waste water treatment plant, Harbor Island, SC AMIAD AMF² 93K Tertiary treatmentThe automatic microfiber technology passed inspection and approval by the SouthCarolina Department of Health and Environmental Compliance (SCDHEC). Thesystem met new regulatory limits and produced higher quality effluent.Flow Rate 250 gpm (57 m3/h)Filtration Degree 10µWater Source Treated wastewaterFiltration Solution 2 x AMF² 93K 23
    • PRE- and POINT-OF-ENTRY FILTRATION, HIGH FLOW AMIAD FILTRATION’S TAF seriesThe Amiad TAF series consists of easy-to-operate 2" and 3" automatic filtersconstructed of high quality plastic, and • Option for continuous flushing.driven by an electronic self-cleaningmechanism. • Low power consumption.The various types of TAF screens cover a • No interruption of downstream flowrange of 10 - 500 micron filtration degrees, during flushing.and accommodate flow rates up to 220gpm (50 m3/h). • Electronically monitored cleaning with flexible control options.• Unique electric drive mechanisms. • Applications: Water supply• Automatic flushing according to pressure systems, cooling water, wastewaterdifferential and/or time. treatment. 24
    • AMIAD FILTRATION CASE STUDY DAVIS RESEARCH STATION, Antarctica AMIAD TAF series Pre-filtration to Reverse OsmosisThis R/O system replaced a Memcor system, providing potable water from seawaterto the research station.Flow Rate 20 gpm (4.5 m3/h)Filtration Degree 25µWater Source Processed seawaterFiltration Solution Single TAF750 electric filter 25
    • ULTRAVIOLET DISINFECTION TECHNOLOGYDirecting Light at Precise WavelengthsHow it works:UV light at the 254 nm wavelength penetratesthe cell membrane of the microorganism. TheUV energy permanently alters the DNA structureof the microorganism in a process calledthymine dimerization. The microorganism isrendered unable to reproduce and quickly dies.For microbial disinfection, efficacy of UV light peaks at the wavelength of 254nm. Above and below this wavelength, effectiveness is quite diminished.For Total Organic Carbon (TOC) reduction, UV light at the 185 nm wavelength isindicated.TOCs are pre-cursors to the creation of disinfection by-products (DBPs), such asTTHMs and HAA5s, at treatment plants utilizing standard chlorine treatment protocols.With properly calibrated UV treatment to reduce TOCs prior to chlorination, DBPlevels are effectively reduced to levels below EPA MCL regulations. In a multi-barrierapproach, the use of UV disinfection reduces the amount of chlorine required,therefore reducing the levels of DBPs. 26
    • UV: Advantages, Constraints and RequirementsAdvantages Triggers a nearly instant reaction. No disinfection by-products. (Chlorination, by contrast, creates THMs.) No hazards introduced (e.g. handling and disposal of chemicals). No alteration of water chemistry: no effect on taste, odor, color or pH. Extensively used in environmentally sensitive and qualitatively critical applications, e.g. food and beverage, pharmaceutical, and semiconductor manufacturing.Constraints Turbidity, color, suspended solids affect light wave penetration. No effect on water quality factors such as suspended solids. Disinfection occurs only while water is subject to the UV light.Requirements Most microorganisms require relatively low levels of UV energy to be rendered inactive, usually under 10 mJ/cm2 (10,000μWsec/cm2). States call for varying standards. In many states, a minimum safety factor of 4x (40 mJ/cm2) is required at the end of UV lamp life (EOL). 27
    • NEOTECH AQUA UVReFleX™ Patented Technology: Intensely reflective chamberThe inside walls of the chamber are coated with a material capable ofreflecting 254 nm light back into the chamber with less than 1% attrition.Each photon that emanates from the lamp(s) inside the chamber thus “lives”far longer than a photon that bounces off a conventional stainless steel wall.Photons are returned back into the chamber for repeated penetration ofpathogens. The result is many times more saturation, at a fraction of energydemand. ReFlexTM Chamber  patented reflective surface*  >99% reflection of 254 nm wavelength UV light *U.S. Patent No. 7,511,281 LAMP LAMP Conventional Chamber polished stainless steel chamber wall 28  low reflection of 254 nm wavelength UV light
    • Advantages of Sustainable UV Technology UV performance that is, under most operating conditions up to 10 times more efficient than that of conventional (stainless steel-walled) UV treatment chambers. • A fraction of the energy required to operate, compared with conventional UV systems. • Cooler operating temperatures permitting on/off cycling without significant effect on lamp life or power requirements: Ideal for storm water reuse applications with variable supply / demand cycles. • Fewer lamps, smaller footprint. UV Reflector Outer Quartz Flow Tube Quartz Lamp Sleeve Low Pressure UV Lamp 29
    • SUSTAINABLE UV by NEOTECH AQUAOptical and Mechanical Design:Maximum uniformity of the UV dose delivered to the water.UV-ray trace analysis: 10-ray tracing in 3-inch chamberFewer lamps required to accommodate a given flow rate. Therefore:• System runs cooler.• Can remain on without flow for more than an hour without risk of overheating.• Frequent on/off cycling less consequential to overall power consumption. 30
    • SUSTAINABLE UV: Optimized Flow Dynamics Fluid-flow modeling of a 300 294.1913 Max value in/s 260.413 GPM system shows highly 226.6346 192.8562 uniform flow for consistent UV 159.0779 125.2995 penetration. 91.52112 57.74275 23.96439 -9.813984 -43.59235 Min value in/s Time: 1 s Time Step: 10 of 10 Fluid Nodal Velocity Z component in/sWater enters and exits the treatment chamber at 45 degrees to ensureideal turbulence and consistent water velocity throughout the chamber,to further assure reliability and consistency of disinfection.Systems include a monitor that measures and reports actual UV intensityin real time. 31
    • WATER RECLAMATION AND REUSE Sequencing technologies for storm water reuse applications Capturing rain water for reuse is among the fastest growing drivers of water technology specification. Reuse applications range from simple implementations, e.g., conserving water for irrigation, to highly sophisticated recycling operations that yield potable water. The most common applications are “in between” – applying captured rain water for irrigation and cooling tower use. The types of application for the reclaimed water, as well as code regulations issued by the municipality, inform which water technologies should be installed. Essential factors to consider: Factor 1: Water quality Rain water, unlike municipal water, is collected in a raw state, neither disinfected nor filtered. Since it is collected from surfaces exposed year- round to outdoor conditions, it is likely to contain substantial particles and even debris. Without disinfection, pathogens will develop in standing water. AD1702-Amiad SAF1500EF for storm water filtration. Valve32 on outlet line is partially closed to increase line pressure.
    • WATER RECLAMATION AND REUSESequencing technologies for storm water reuse applicationsFactor 2: Filtration imperativeThe reliability and efficiency of thedisinfection process is subject to the clarityof the water treated. Because particles inthe water can sequesterpathogens, filtration should alwaysprecede disinfection technologies.UV uses a specific wavelength of light toinactivate the DNA of pathogens; thehigher the levels of turbidity and hardness(minerals) in the water, the less effectivethe photons emanating from the UV lampswill be against pathogens. (Ozonedisinfects by the introduction of O3; itseffectiveness is likewise compromised by AD1702-Amiad SAF1500EF for storm water filtration mountedturbidity.) above the retention tank.Factor 3: Disinfection mandateMost municipalities now mandate disinfection of all reuse water by an approvedmethod. Ultraviolet light (UV) and ozone are commonly specified as approveddisinfection methods. 33
    • WATER RECLAMATION AND REUSESequencing technologies for storm water reuse applicationsFactor 4: UnpredictabilityThe level of water in the holding tank at any time is variable, since rainfallis unpredictable. If the captured water is intended for reuse – commonlyto supply HVAC makeup water – another unpredictable element is addedbecause cooling tower demand is variable. Because supply anddemand are both unpredictable, a storm water reuse system providesmunicipal water as a backup. There are two ways to accommodate: Method 1 The holding tank receives storm water only. When there is insufficient rain water in the tank to meet demand, municipal water substitutes, bypassing the tank and the dedicated water filtration / disinfection technologies. Method 2 All make-up water, whether from rainfall or the domestic supply, is directed first to the tank. In this case there is always an adequate level of water in the tank, comprised of a mix from the two sources. 34
    • WATER RECLAMATION AND REUSESequencing technologies for storm water reuse applications If municipal water bypasses the retention tank altogether (Method1), the tank level will be highly variable. A 30,000 gallon tank, forexample, can fill from rainfall, or reach low level by demand, in amatter of hours. In this case, the water technologies supplied mustbe able to remain idle, and shut down and restart, as demanddictates. If the municipal water that makes up shortfalls in rain water isdirected to the retention tank (Method 2), then the level of the tankis assured to be relatively constant. The water technologies used ona side stream recirculation loop may be operational 24/7, or set ona fractional daily cycle, e.g. 6, 8 or 12 hours/day, which may beestablished by calculating an optimal frequency of tank volumeturnover.Note: While water technologies are generally designed to be perpetuallyon with minimal power required, overall energy demand may be a factorin determining the daily on/off durations for the recirculation loop. 35
    • WATER RECLAMATION AND REUSE Sequencing technologies for storm water reuse applications Factor 5: Disinfection residual To the extent some water in the tank comes from the potable water supply, there will be residual chlorine disinfection. The residual level is variable, because (1) sometimes rainfall will be adequate to supply the tank to capacity (in which case no municipal water flows into the tank), (2) the amount of time water will stay in the tank is variable, and any chlorine disinfection residual initially present will dissipate over time. Now in production: Our seq30SD33 skid-assembled Amiad Filtration + UV, an ideal turn- key, sustainable water technologies solution to the challenge of storm water reuse applications. In some cases ozone is used with, or instead of, UV. Key considerations: 1. UV has no disinfection residual, whereas ozone has a residual expressed as a half-life of about 20 minutes. 2. UV light destroys residual ozone. These properties guide the sequence and application of the two technologies. Contact us for more information about configuring water technologies for your36 storm water reclamation projects.
    • STORM WATER REUSE: Fire Suppression Case Study PROJECT DELTA, EXXON-MOBIL CAMPUS, Houston seq30SD33: AD1702-AMIAD 3000EF + NEOTECH AQUA D338 UV, skid-assembled Storm water recirculation loop for fire suppression MEP: Cosentini Associates emergency water to be drawn from storm water retention tank, 150 gpm Water Sources: Storm water, municipal, additional backup sources Disinfection on a side stream recirculation loop prevents pathogen buildup in the 75,000 gallon storage tank, assuring no restricted flow in the event of an emergency requiring rapid discharge. Amiad "extra-fine” screen filtration before UV assures high UV transmittance (UVT). The minimal power demand of ReFleXTM UV technology assures reliable operation, with energy conservation realized year after year. 37
    • PROJECT DELTA CASE STUDY Additional water technologies for the Exxon-Mobil campus At the mixing tank supplying the cooling tower: One AMIAD HMF2PTBDH-48 multimedia filtration system. At point-of-entry for each building: One water softener 3M DKSM15000S-SB or DKSM04000S-SB; followed by one NEOTECH AQUA D338 UV disinfection system.For each building: UV at point-of-entry. At multiple point-of-use locations within each building supplying consumable water to employees: 3M twin-parallel AP904 filtration systems for flow rates of 20+ gpm. 38
    • HIGH FLOW EXTREMELY FINE FILTRATIONShown: Model 71HF60HCGD on a dedicatedhot water line after Amiad Filtration at point-of-entry, for exceptional water qualitysupplied to a luxury Tribeca condominium. In applications demanding exceptionally fine filtration – for example, dedicated hot water (boiler discharge) filtration – High Flow cartridge- based systems are available, as fine as 1 micron. Depending on the application, they may be sequenced after automatic coarser filtration systems. Replaceable filtration elements are available at various sizes from 1 to 70 microns, with vessels ranging in size to accommodate from one to seven elements within. The blown microfiber filtration media is manufactured to tightly controlled fiber diameter specifications, resulting in absolute rated particle retention capacity. As the fluid passes through the media it is evenly distributed throughout, allowing a much higher ratio of flow rate to overall surface area. Available in horizontal or vertical configuration, in carbon steel, 304 SS and 316L SS. 39
    • HIGH FLOW EXTREMELY FINE FILTRATION, CASE STUDY MILLENNIUM TOWER RESIDENCES, New York City AD1702-AMIAD SAF4500SF followed by 3M Twin 71HF40VCGD high-flow absolute 2 micron cartridge filtration: Dedicated hot water only filtration system.Engineer: WSP Flack + Kurtz Water straight from the boiler is supplied first to a single AD1702-AMIAD SAF4500SF (with superfine filtration screen). Filtered water is then passed through a twin parallel vertical high- flow system with two- micron elements. Cartridges achieve maximum longevity due1. AD1702-AMIAD SAF4500SF to fine primary-stage filtration. 2. 3M Twin 71HF40VCGD 40
    • ULTRAFILTRATIONMembrane Technology for Reliable Purification of:Surface water - Ground water - Spring water forDrinking water - Process water - Wastewater reuseRemoves:Turbidity, particles, bacteria, cysts, viruses and parasites.Regardless of degree of contamination of water to beprocessed, the product water is unvarying, maintaininga single level of purity.Removal Performance1 Virus >99.99% (>4.7 log tested) Bacteria >99.99% (>4.9 log tested) Parasites >99.99% (>4.7 log tested)1 Virus and bacteria removal by the ultrafiltration membrane measuredby US EPA against EPA Standards for ultrafiltration systems using surfacewater filtration against a new membrane. 41
    • ULTRAFILTRATION: At 20 Nanometers1,000,000 Nanometers = 1 Millimeter20 nanometer membrane ultrafiltration pores:3000 times smaller than diameter of a human hair.Purity thus ensured at microscopic level.The water to be treated passes through the capillariesand disperses laterally through the membrane.Suspended solids, viruses, germs and bacteria areretained on the inside.When using ultrafiltration to remove viruses, bacteria andcysts: The critical requirement is that the membrane fibersdo not break.If any uncertainty about reliability: Possibility thatpathogens could escape and re-enter the water.Key factor: Fiber stabilization within the membranestructure. 42
    • ULTRAFILTRATION: Membrane StructureSample Manufacturer’s Structure:Seven individual capillaries combined in a single fiberwithin a highly resistant supporting structure:Increases stability of membrane to the point thatpossibility of fiber breakage is virtually ruled out.Membranes bundled together in housings to ensure: Optimum hydraulic properties Maximum durability Clean, safe treatment processVariable membrane capillary diametersUniversal membrane with a 0.9 mm inside capillarydiameter: Suitable for use with a broad range ofsource water compositions.Heavy-duty membrane with a 1.5 mm inside capillarydiameter: Ideal for applications where the solidsconcentration is high, such as backwash water forconventional filters or two-stage UF systems. 43
    • ULTRAFILTRATION: IntegrityIntegrated Membrane Testing:Systems can include fully automated,integrated, membrane integrity testing,capable of detecting membrane damagesmaller than the size of pathogens.If included, the signal of a turbidity meterin the filtrate line of the system can also bemonitored.A continuous, indirect integrity test triggersthe integrated, direct membrane testwhen indicated. 44
    • ULTRAFILTRATION: CleaningCleaning Methods:Once the system detects a need for cleaning, it can applydifferent combinations of cleaning techniques, includingpre and post-flushing, internal backwash, or backwashpowered by an external pump.Where required by the composition of water-bornecontaminants: Automatic chemically enhancedCleaning-In-Place (CIP). The system co-ordinates acleaning process with two different chemicals insequence, to allow e.g. high-pH then low-pH cleaningsteps to return the system to start-up conditions.How cleaning operates:By continuously measuring the actual degree of fouling ofthe membrane, based on a function of flow anddifferential pressure. The system automatically reacts tovarying feed water conditions and adjusts the frequencyof its cleaning cycles accordingly. 45
    • ULTRAFILTRATION: MonitoringAlert Monitoring and Alert System:The system can report to an existing remote monitoring system,or send out an SMS message to up to ten cell phones, as soonas an operating error is detected such as:• failed membrane integrity test• unsuccessful cleaning sequences• water hammer occurred• empty cleaning chemicalsOnce the equipment is hooked up to an existing cellularnetwork through its internal high speed modem, web-based,remote-control solutions allow the user to access the unit overthe Internet, change operating parameters, and readoperating history from the data logger.Additionally: The system can control a feed pump and dosingequipment in the feed, to be able to treat high color-containing sources using an inline flocculation process. Thispermits the highest possible flow rates with maximum degreesof color and dissolved organics removal. 46
    • ULTRAFILTRATION: Modular DesignLarger-scale systems typically consist of:One control module, which contains the PLC,electrical connections, headers, collectors,valves and sensors. The control module isassembled on a stainless steel rack.One up to six filtration modules, which areconnected to the control module throughVictaulic couplings. Each filter modulecontains one ultrafiltration hollow fibermodule.Optionally, pressurized air (e.g. supplied byan air compressor) can be controlled throughthe control system, and can be connected tothe units in order to perform a membraneintegrity test. 47
    • ADDITIONAL TECHNOLOGIES SOFTENING, REVERSE OSMOSIS, OZONATION, SPECIALIZED FILTRATION, AOP BETTER WATERS sources, specifies and supplies numerous other water technologies, from the most common (water softeners) to the highly specialized, such as the ARKAL Opal Disc Filtration System (two views shown on this page) for HVAC filtration and low flow storm water reuse applications. This presentation covers the most frequently specified systems for high performance, sustainable filtration and UV disinfection. There are hundreds of other products we specify and sell in our role as a factory distributor for the top manufacturers of water tech equipment. These factories make systems for many more applications than this document references. Additionally, we offer a wealth of detailed specifications, technical and performance data, drawings and photos to support the requirements of engineers, architects, contractors and owners. Please contact us for inquiries, further information, or to make us aware of your specific requirements. Thank you.48
    • Main office: New York, NY Field office: Las Vegas, NVPO Box 8545 7473 W. Lake Mead Boulevard,JAF Station Suite 100New York, NY 10116 Las Vegas, NV 89128Office: 212.366.6700 Office: 702.562.1283Fax: 800.720.7976 Fax: 888.721.9047Matt Kaye Nicholas T. ConstantPresident Vice President Business Developmentmxk@betterwaters.comcell: 917.696.2457 nick@betterwaters.com cell: 702.688.3433 ©2013 Advanced Water Technologies Inc. All rights reserved. 49