better waters 2 summary-municipal v2013-08n

SUSTAINABLE, HIGH PERFORMANCE WATER TECHNOLOGIES

for RESIDENTIAL, COMMERCIAL, MUNICIPAL, INDUSTRIAL and INSTITUTIONAL APPLICATIONS

All properties shown rely on the water technologies presented herein.

Our technology recommendations factor multiple considerations:

• Intrinsic quality of water produced• Long-term performance• Water efficiency• Energy efficiency• Environmental impact • Cost

But we don’t just talk the talk. We sell products.

To meet the demands and expectations of our very tough customer base, we relentlessly source the top manufacturers of best-in-class water technologies, to resolve a growing array of water quality concerns and respond to ever tightening standards.

Our OEM and exclusive distribution relationships are designed to assure our customers a level of water technology performance that consistently exceeds industry standards.

to SUSTAINABLE WATER QUALITY and UNIVERSAL ACCESS for MORE THAN 20 YEARS

COMMITTED

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GREEN

We are a leading supplier of sustainable, high performance water technologies to LEED-Certified projects in New York City and throughout the United States.

The US Green Building Council has issued a CIR ruling (Credit Interpretations and Rulings CSv2.0 IDc1) awarding an Innovation in Design credit – a LEED point – for projects that use BETTER WATERS filtration technologies to eliminate the need for bottled water.

Over the last twenty years, we have sold and maintained thousands of water technology products in continuous use at some of America’s most prestigious residential 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 are honored to say that every major mechanical engineering firm seeks our expertise on water technologies for their projects. And most high profile developers in New York City now rely on BETTER WATERS to supply their projects with our water filtration systems.

Every day, our energy- and water-conserving filtration and disinfection systems significantly improve the quality of people’s lives with minimal environmental impact.

Whether your project is large or small, we welcome the opportunity to share our expertise.

As environmental considerationshave 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

MARKETS

Residential, Commercial, Hospitality, Municipal, Industrial, Institutional Consumer, Corporate, Non-Profit

Principal 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.

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SELECT INSTALLATIONS

TECHNOLOGIES LOCATION ENGINEER ARCHITECT

Filtration: building, all apts. The Helena Flack + Kurtz FxFowle

Filtration: building Riverside Boulevard, multiple IM Robbins SLCE

Filtration: building 555 West 23 Street IM Robbins Steven B. Jacobs

Filtration: building Riverplace II Cosentini Costas Kondylis

Filtration: building Chelsea Landmark TS Associates Costas Kondylis

Filtration: building Yankee Stadium M-E Engineers HOK Sport

Filtration: building 505 West 37 Street IM Robbins Handel

Filtration: building Beekman Tower Jaros Baum & Bolles Gehry

Filtration: all rooms Element Times Square Gene Kaufman Gene Kaufman

Filtration: building Emerald Green IM Robbins Steven B. Jacobs

Filtration: building Queens West, multiple IM Robbins Arquitectonica

Filtration, UV, ozonation: storm water

Thurgood Marshall Federal Courthouse

WSP Flack + Kurtz Beyer Blinder Belle

Filtration: building, HVAC One York Street ADS Engineers Enrique Norten

Filtration, UV, Softening: buildings, fire suppression, drinking water

ExxonMobil new HQ, Houston, TX Cosentini Gensler

Filtration: building Hudson Yards AKF, Cosentini, Ettinger various

Filtration, UV: building, storm water 99 Church Street WSP Flack + Kurtz Robert A.M. Stern

Filtration: building 56 Leonard Street Cosentini Herzog & de Meuron

Filtration, UV: storm water 900 New York Avenue, DC Cosentini Pickard Chilton

Filtration: building 2182 Broadway Dagher Cook + Fox

Filtration: building 432 Park Avenue WSP Flack + Kurtz Rafael Vinoly

Filtration: building 625 West 57 Street Dagher Bjarke Ingels 6

In-service or engineer-specified for new construction:

WATER TECHNOLOGIES – KEY POINTS 1 - 4

1. 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.

WATER TECHNOLOGIES – KEY POINTS 5 - 7

5. 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.

MUNICIPALITIESTaking control of your water quality

THE IMPERATIVEWater treatment plant managers, project managers and engineers need to ensure that water quality is as good as can practically be obtained. People want 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, a consequence of particles of manganese, iron, silt or clay.

THE SOLUTIONHigh-performance automatic pre- and point-of-entry water filtration is a completely reliable and effective solution that is installed once, and thereafter works year after year with minimal maintenance. When specified correctly, it is a one-time expense with little ongoing upkeep required. The payoff: Assuring reliable clarity before downstream water technologies, and ensuring equipment longevity. 9

AMIAD FILTRATION’S AD1702 SAF series: What makes it unique?

How is that possible?

Brilliant technology. Particles are collected against a 316L stainless steel screen, and automatically flushed out as frequently as needed based on continuous measurement of pressure differential and/or at pre-set time intervals. The entire captured particulate load is purged typically in less than 20 seconds, at a rate of only about one gallon / sec. Even during flush mode, the unit stays in service.

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 consumes less than 1/10th the water used by other automatic systems. For a typical large residential building, that means saving over one million gallons of water every year.

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

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AMIAD FILTRATION’S AD1702 SAF series: How it works.

The AD1702-AMIAD SAF models use a sophisticated, patented* self-cleaning screen technology to achieve high volume filtration in a compact system, with an electrically driven 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 screens with various filtration pore sizes are available. For NYC water conditions the finest screens 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, vacuuming the accumulated particulate matter and expelling it through the exhaust valve. During the brief flush cycle, the filtered water supply is not interrupted.

Photo: Discharge of particle-saturated water into detention tank.

* U.S. Patent No. 7,055,69911

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AD1702-AMIAD SAF FEATURESFiltration Screen: Amiad's proprietary four-layer "floating" screen technology creates 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 maintenance with 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.


The next generation of our most frequently specified build, the AD1702-AMIAD TWIN 4500EF-SP, two units pre-assembled on a skid, offers a more compact design. Flow rate up to 450 gpm with filtration screens assuring 98+% reduction of particles larger than 10 microns.

13Flush line suction pump on lower right. Control panel on upper left.

SKID-MOUNTED TWIN FILTRATION for up to 450 GPM


AMIAD FILTRATION CASE STUDY

AD1702-AMIAD SAF6000EF, x 8 in parallelPoint-of-entry: Domestic water supply to stadium

YANKEE STADIUM, New York City

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 and above.

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Engineer: M-E EngineersArchitect: Populous (formerly HOK Sport)

Why was a central filtration system installed?

YANKEE STADIUM, New York City

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.

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After installation, filters may be insulated.


UNITED STATES FISH & WILDLIFE SERVICE, USA

AMIAD SAF6000, Twin ParallelPond water treatment

Filters 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


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EAST BAY MUNICIPALITY DISTRICT, East Bay(San Francisco), CA AMIAD SAF6000, Twin ParallelIndustrial water supply

Large water district required reduction of organics and algae that were fouling heat exchangers. Installation of SAF6000 Twin in 1998 has been successfully used to reduce 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


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CITY OF CARMEL Waste water treatment plant,Carmel, IN AMIAD SAF4500Service water

Filters effluent water from the treatment process; reuses the water for seals in pumps and 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


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Flow Rate 1230 gpm (280 m3/h)Filtration Degree 100µ

Water Source Reservoir catchmentsFiltration Solution 4 x 6" SAF3000I

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BUKIT PANCHOR Membrane treatment plant, Malaysia

AMIAD SAF3000, x 4 in parallelPre-Filtration to Reverse Osmosis System


WOODLAND PARK ZOO, Washington

AMIAD SAF6000Penguin pool recirculating water treatment

94,000 gallon closed loop re-circulation system. Filter delivers water to ozone treatment.

Flow Rate 750 GPM (170 m3/h)Filtration Degree 25µ

Water Source Penguin poolFiltration Solution Single 6" SAF6000


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LAX INTERNATIONAL AIRPORT, Los Angeles, CA

AMIAD SAF1500Airport cooling tower

The filter was rated at 10% side stream onthe full tower flow of 500 gpm.


Water Source Cooling towerFiltration Solution Single 3" SAF1500


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The Amiad AMF2 series uses microfiber thread technology to create highly effective self-cleaning filter systems.

The automatic self-cleaning filters use a unique filtration medium constructed of fine threads wound in layers around a grooved plastic spool cassette, removing dirt particles as water flows through multi-layered cassettes to the collecting pipes, and out of the filter via outlets.

The accumulation of dirt particles causes differential pressure. At a preset pressure differential value or time interval, the control unit activates the self-cleaning cycle.

California Title 22 approved. Filtration degrees available: 2 - 20 micron.

• Effective removal of Cryptosporidium and Giardia

cysts.

• Cartridge performance without cartridge replacement.

• Outperforms traditional multi-media systems.

• Pre-filtration for R/O desalination and other sub-micron systems.

• Provides complete water treatment and filtration solutions for municipalities.

• Environmentally friendly: No chemical treatment required.

AMIAD FILTRATION’S AMF2 seriesTSS, NTU and SDI reduction for potable and wastewater applications.


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HARBOUR ISLAND Waste water treatment plant,Harbor Island, SCAMIAD AMF² 93KTertiary treatment

The automatic microfiber technology passed inspection and approval by the South Carolina Department of Health and Environmental Compliance (SCDHEC). The system met new regulatory limits and produced higher quality effluent.


Water Source Treated wastewaterFiltration Solution 2 x AMF² 93K


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AMIAD FILTRATION’S TAF series

The Amiad TAF series consists of easy-to-operate 2" and 3" automatic filters constructed of high quality plastic, and driven by an electronic self-cleaning mechanism.

The various types of TAF screens cover a range of 10 - 500 micron filtration degrees, and accommodate flow rates up to 220gpm (50 m3/h).

• Unique electric drive mechanisms.

• Automatic flushing according to pressure differential and/or time.

• Option for continuous flushing.

• Low power consumption.

• No interruption of downstream flowduring flushing.

• Electronically monitored cleaning with flexible control options.

• Applications: Water supply systems, cooling water, wastewater treatment.


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DAVIS RESEARCH STATION, Antarctica

AMIAD TAF seriesPre-filtration to Reverse Osmosis

This R/O system replaced a Memcor system, providing potable water from seawater to the research station.

Flow Rate 20 gpm (4.5 m3/h)Filtration Degree 25µWater Source Processed seawaterFiltration Solution Single TAF750 electric

filter


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ULTRAVIOLET DISINFECTION TECHNOLOGY

How it works:

UV light at the 254 nm wavelength penetrates the cell membrane of the microorganism. The UV energy permanently alters the DNA structure of the microorganism in a process called thymine dimerization. The microorganism is rendered unable to reproduce and quickly dies.

For microbial disinfection, efficacy of UV light peaks at the wavelength of 254 nm. Above and below this wavelength, effectiveness is quite diminished.

For Total Organic Carbon (TOC) reduction, UV light at the 185 nm wavelength is indicated.

TOCs are pre-cursors to the creation of disinfection by-products (DBPs), such as TTHMs and HAA5s, at treatment plants utilizing standard chlorine treatment protocols. With properly calibrated UV treatment to reduce TOCs prior to chlorination, DBP levels are effectively reduced to levels below EPA MCL regulations. In a multi-barrier approach, the use of UV disinfection reduces the amount of chlorine required, therefore reducing the levels of DBPs.

Directing Light at Precise Wavelengths

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).

NEOTECH AQUA UVReFleX™ Patented Technology: Intensely reflective chamber

Conventional Chamber polished stainless steel chamber wall low reflection of 254 nm wavelength UV light

ReFlexTM Chamber patented reflective surface*

>99% reflection of 254 nm wavelength UV light

The inside walls of the chamber are coated with a material capable of reflecting 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 of pathogens. The result is many times more saturation, at a fraction of energy demand.

LAMP LAMP

*U.S. Patent No. 7,511,281

Advantages of Sustainable UV Technology

• 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 performance that is, under most operating conditions up to 10 times more efficient than that of conventional (stainless steel-walled) UV treatment chambers.

UV Reflector

Outer Quartz Flow TubeQuartz Lamp Sleeve

Low Pressure UV Lamp

SUSTAINABLE UV by NEOTECH AQUAOptical and Mechanical Design:

UV-ray trace analysis: 10-ray tracing in 3-inch chamber

Fewer 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.

Maximum uniformity of the UV dose delivered to the water.

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SUSTAINABLE UV: Optimized Flow Dynamics

Water enters and exits the treatment chamber at 45 degrees to ensure ideal 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 intensity in real time.

Fluid-flow modeling of a 300 GPM system shows highly uniform flow for consistent UV penetration.

294.1913 Max value in/s260.413226.6346192.8562159.0779125.299591.5211257.7427523.96439-9.813984-43.59235 Min value in/s

Time: 1 sTime Step: 10 of 10

Fluid Nodal VelocityZ component in/s

WATER RECLAMATION AND REUSESequencing 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 qualityRain 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. Valve on outlet line is partially closed to increase line

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Factor 2: Filtration imperativeThe reliability and efficiency of the disinfection process is subject to the clarity of the water treated. Because particles in the water can sequester pathogens, filtration should always precede disinfection technologies.

UV uses a specific wavelength of light to inactivate the DNA of pathogens; the higher the levels of turbidity and hardness (minerals) in the water, the less effective the photons emanating from the UV lamps will be against pathogens. (Ozone disinfects by the introduction of O3; its effectiveness is likewise compromised by turbidity.)

Factor 3: Disinfection mandateMost municipalities now mandate disinfection of all reuse water by an approved method. Ultraviolet light (UV) and ozone are commonly specified as approved disinfection methods.

AD1702-Amiad SAF1500EF for storm water filtration mounted above the retention tank.

Sequencing technologies for storm water reuse applications

WATER RECLAMATION AND REUSE

Factor 4: UnpredictabilityThe level of water in the holding tank at any time is variable, since rainfall is unpredictable. If the captured water is intended for reuse – commonly to supply HVAC makeup water – another unpredictable element is added because cooling tower demand is variable. Because supply and demand are both unpredictable, a storm water reuse system provides municipal water as a backup. There are two ways to accommodate:

Method 1The 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 2All 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.

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If municipal water bypasses the retention tank altogether (Method 1), the tank level will be highly variable. A 30,000 gallon tank, for example, can fill from rainfall, or reach low level by demand, in a matter of hours. In this case, the water technologies supplied must be able to remain idle, and shut down and restart, as demand dictates.

If the municipal water that makes up shortfalls in rain water is directed to the retention tank (Method 2), then the level of the tank is assured to be relatively constant. The water technologies used on a side stream recirculation loop may be operational 24/7, or set on a fractional daily cycle, e.g. 6, 8 or 12 hours/day, which may be established by calculating an optimal frequency of tank volume turnover.

Note: While water technologies are generally designed to be perpetually on with minimal power required, overall energy demand may be a factor in determining the daily on/off durations for the recirculation loop.



Factor 5: Disinfection residualTo 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.

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.

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.

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Contact us for more information about configuring water technologies for your storm water reclamation projects.

STORM WATER REUSE: Fire Suppression Case Study

PROJECT DELTA, EXXON-MOBIL CAMPUS, Houstonseq30SD33: AD1702-AMIAD 3000EF +NEOTECH AQUA D338 UV, skid-assembled

Storm water recirculation loop for fire suppression emergency water to be drawn from storm water retention tank, 150 gpmWater 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.

MEP: Cosentini Associates

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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.

For each building: UV at point-of-entry.

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.

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.

HIGH FLOW EXTREMELY FINE FILTRATION

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 verticalconfiguration, in carbon steel,304 SS and 316L SS.

Shown: Model 71HF60HCGD on a dedicated hot water line after Amiad Filtration at point-of-entry, for exceptional water quality supplied to a luxury Tribeca condominium.

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HIGH FLOW EXTREMELY FINE FILTRATION, CASE STUDY

MILLENNIUM TOWER RESIDENCES, New York CityAD1702-AMIAD SAF4500SF followed by 3M Twin 71HF40VCGD high-flow absolute 2 micron cartridge filtration: Dedicated hot water only filtration system.

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 due to fine primary-stage filtration.

Engineer: WSP Flack + Kurtz

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1. AD1702-AMIAD SAF4500SF

2. 3M Twin 71HF40VCGD

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Surface water - Ground water - Spring water for

Drinking water - Process water - Wastewater reuse

Removes:Turbidity, particles, bacteria, cysts, viruses and parasites.

Regardless of degree of contamination of water to be processed, the product water is unvarying, maintaining a 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 measured by US EPA against EPA Standards for ultrafiltration systems using surface water filtration against a new membrane.

ULTRAFILTRATIONMembrane Technology for Reliable Purification of:

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20 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 capillaries and disperses laterally through the membrane. Suspended solids, viruses, germs and bacteria are retained on the inside.

When using ultrafiltration to remove viruses, bacteria and cysts: The critical requirement is that the membrane fibers do not break.

If any uncertainty about reliability: Possibility that pathogens could escape and re-enter the water.

Key factor: Fiber stabilization within the membrane structure.

ULTRAFILTRATION: At 20 Nanometers1,000,000 Nanometers = 1 Millimeter

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Seven individual capillaries combined in a single fiber within a highly resistant supporting structure:

Increases stability of membrane to the point that possibility of fiber breakage is virtually ruled out.

Membranes bundled together in housings to ensure: Optimum hydraulic properties Maximum durability Clean, safe treatment process

Variable membrane capillary diameters Universal membrane with a 0.9 mm inside capillary diameter: Suitable for use with a broad range of source water compositions.

Heavy-duty membrane with a 1.5 mm inside capillary diameter: Ideal for applications where the solids concentration is high, such as backwash water for conventional filters or two-stage UF systems.

ULTRAFILTRATION: Membrane StructureSample Manufacturer’s Structure:

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Systems can include fully automated, integrated, membrane integrity testing, capable of detecting membrane damage smaller than the size of pathogens.

If included, the signal of a turbidity meter in the filtrate line of the system can also be monitored.

A continuous, indirect integrity test triggers the integrated, direct membrane test when indicated.

ULTRAFILTRATION: IntegrityIntegrated Membrane Testing:

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Once the system detects a need for cleaning, it can apply different combinations of cleaning techniques, including pre and post-flushing, internal backwash, or backwash powered by an external pump.

Where required by the composition of water-borne contaminants: Automatic chemically enhanced Cleaning-In-Place (CIP). The system co-ordinates a cleaning process with two different chemicals in sequence, to allow e.g. high-pH then low-pH cleaning steps to return the system to start-up conditions.

How cleaning operates:

By continuously measuring the actual degree of fouling of the membrane, based on a function of flow and differential pressure. The system automatically reacts to varying feed water conditions and adjusts the frequency of its cleaning cycles accordingly.

ULTRAFILTRATION: CleaningCleaning Methods:

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The system can report to an existing remote monitoring system, or send out an SMS message to up to ten cell phones, as soon as an operating error is detected such as:

• failed membrane integrity test• unsuccessful cleaning sequences• water hammer occurred• empty cleaning chemicals

Once the equipment is hooked up to an existing cellular network through its internal high speed modem, web-based, remote-control solutions allow the user to access the unit over the Internet, change operating parameters, and read operating history from the data logger.

Additionally: The system can control a feed pump and dosing equipment in the feed, to be able to treat high color-containing sources using an inline flocculation process. This permits the highest possible flow rates with maximum degrees of color and dissolved organics removal.

ULTRAFILTRATION: MonitoringAlert Monitoring and Alert System:

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Larger-scale systems typically consist of:

One control module, which contains the PLC, electrical connections, headers, collectors, valves and sensors. The control module is assembled on a stainless steel rack.

One up to six filtration modules, which are connected to the control module through Victaulic couplings. Each filter module contains one ultrafiltration hollow fiber module.

Optionally, pressurized air (e.g. supplied by an air compressor) can be controlled through the control system, and can be connected to the units in order to perform a membrane integrity test.

ULTRAFILTRATION: Modular Design

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.

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.

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.

ADDITIONAL TECHNOLOGIES

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Main office: New York, NYPO Box 8545JAF StationNew York, NY 10116

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Matt KayePresident

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