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WEDECO SpektronEconomic drinking water disinfectionwith UV light

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ADVANTAGES

Safe disinfection through biodosimetrically certified systems

No harmful by-products (such as THMs in chlorinating)

Exceptionally low operating costs through uniquely efficient electricity flow and electronic

units of the newest generation

Excellent EMC protection, exceeds valid industry and

household standards

Ongoing self-monitoring of UV intensity, reactor temperatures and water flow combined with a high-performance memory and analysis system

Extremely low loss of pressure

Variable installation positions for easy integration into existing pipeline systems

UV Disinfection SystemsSpektron SeriesThe biodosimetrically tested UV systems from the Spektron

product range meet all the requirements of safe and environ-

mentally friendly water disinfection according to 11 of the

German drinking water regulation (TrinkwV 2001). They are

certified according to Austrian NORM and German DVGW

directives.

The new Spektron range offers a wide array of uses from

domestic water supply to industrial uses to large water plants

with a capacity of more than one thousand m3/h. What makes

them special is their consistent optimisation of hydraulic

characteristics with the use of the unique CrossMixmodule.

Electronic ballasts of the newest generation in conjunction

with our SpektrothermUV lamp technology allows minimi-

sing energy and lamp costs by up to 30 %. Improved Spektro-

thermUV lamps offer today even better efficiency and a very

long lamp life.

The robust construction makes them certifiably usable in

waters with high humic contents or in environments with

increased requirements in terms of EMC protection. The new

uv reactor construction ensures simple installation within

virtually any space limitation.

Main applications:

Drinking water

Industrial process waterfor food and beverages

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Safe disinfection at 254 nm

UV disinfection has been proven world-

wide as the most important water disinfec-

tion process. Bacteria, viruses, yeast and

parasites (for example, cryptosporidium

and giardia) are effectively inactivated by

using UV light.

There is no development of resistance

in UV disinfection as is increasingly experi-

enced in, for example, treatment using an-

tibiotics and also in chlorination. There are

no resultant dangerous by-products (DBP)

as is the case with chemical disinfection.

X-rays

100 200 280 315 400 780

Wavelength (nm)

Vacuum-UV

UV-C UV-B

UV-A

Ultraviolet Visible light Infrared

SpektrothermUV-lamp (254 nm)

Inactivation ofmicroorganisms

UV is a high-energy light with a wavelength of 100 - 400nm. The UV-Cspectrum with a wavelength of approx. 250 - 260 nm is particularlyeffective for disinfection.

Ad

enine

Thymine

Adenine

Thymine

Thymine

Cytosine

Thymine

Dimer

Guanine

Ad

enine

Ad

enine

Cytosine

Gu

anine

Cytosi

Gu

anine

ne

Adenine

Thymine

UVlight

Adenine

Thymine

Adenine

Thymine

Thymine

Cytosine

Thymine

Guanine

Adenine

Adenine

Cytosine

Guanine

Cytosi

Guanine

ne

Adenine

Thymine

UV-light inactivates microorganisms by damaging the hereditary DNA/RNA,thereby hindering vital cell division processes.

No Chance for Harmful Microorganisms

Legionella pneumophila WEDECO UV pro-tects against these extremely resistant bacte-ria without creating any harmful bi-products

Comparison of UV, chlorine and chlorine dioxide disinfection processes

Type

Use in organically

burdened waters

(Humic substances)

Pathogen

bacteriaVirus Cryptosporidium

Possible harmful

by-products

UV disinfectionwith low pressure

++ ++ + ++ none

Chlorine - + + -THM, AOX,

Chlorite

Chlorine dioxide -- ++ + +Chlorite

(THM)++= very effective += effective - = barely effective -- = not applicable

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Spektron System Components

Inflow

Lamp connection

Cleaning, deaeration valve

Cleaning, deaeration valve

Outflow

Spektrotherm

UV Lamp

CrossMixflow control

Digital controlled electronicballasts type TDS

Certified UV sensor

PECO menu controlled PLC

TypeFlow-rate*

m/hFlange

connection

Powerconsumption

kW

ReactorW x H x D mm

CabinetW x H x D mm

Spektron 3 6,1 AG 1" 0,055 ca. 700 x 130 x 110 340 x 350 x 240

Spektron 6 10,4 AG 2" 0,09 ca. 1100 x 180 x 140 340 x 350 x 240

Spektron 15 29,2 FL DN 65 0,25 ca. 1500 x 200 x 150 340 x 350 x 240

Spektron 25 42,0 FL DN 80 0,38 ca. 1700 x 200 x 150 340 x 350 x 240

Spektron 25 S 37,7 FL DN 80 0,30 1315 x 460 x 390 340 x 580 x 240

Spektron 70 134,0 FL DN 125 0,80 1595 x 470 x 390 340 x 580 x 240


Spektron 100 S 184,0 FL DN 150 1,30 1610 x 561 x 482 600 x 600 x 350


Spektron 250 400,0 FL DN 250 2,20 2300 x 695 x 600 600 x 600 x 350Spektron 400 1.060,0 FL DN 300 2,95 2475 x 813 x 725 600 x 600 x 350

Spektron 600 1.480,0 FL DN 350 4,35 2480 x 1045 x 930 600 x 600 x 350

* 400 J/m2; UV transmittance = 98% per 1cm at the end of the lamp lifetime at SAK254nm. All specifications are subject to change without notice.

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WEDECO SpektrothermUV Lamps

The medium pressure lamp emits a broad-brand spectrumthat for the most part lies outside the spectrum rangerelevant to disinfection

The WEDECO SpektrothermUV lamp emits almost entirelyat a wavelength of 254 nm, which lies in the maximum spec-trum range for effective disinfection

Emission spectra [wavelengths in nm]

Lifespan cost analysis based on 10 years.

40%

60%

80%

100%

WEDECOSpektron MediumPressure

Energy costs

Maintenance

Lamp costs /Quarz tube costs

Investment costs

20%

0%

169%

Taking photo reactivation intoaccount = safe disinfection

Photo reactivation, meaning the self-repair of inactivated micro-

organisms, can occur with many microorganisms making it parti-

cularly important to consider this effect in the original equipment

design. This is done by choosing a safe UV dosage (400 J/m2=40mJ/

cm2=40.000 Ws/cm2) that is confirmed by microbiological tests

(according to DVGW W-294 and/or NORM M-5873-1). Leading UV

specialists have repeatedly ascertained that there is no difference in

the safety of the disinfection capabilities between low and medium

pressure lamps when this UV dose is applied.

200

254 nm Inaktivierung vonMikroorganismen

250 300 350 400 450 500 550 6000

10

20

30

40

50

60

7080

90

100

0

10

20

30

40

50

60

7080

90

100

RelativeUVEmission(%)

DNAAbsorb

tion(%)

200

Inaktivierung vonMikroorganismen

250 300 350 400 450 500 550 6000

10

20

30

40

50

60

7080

90

100

0

10

20

30

40

50

60

7080

90

100

RelativeUVEmission(%)

DNAAbsorb

tion(%)

The most advantageous solution when compared to medium pressure lamps

Low pressure Medium pressure Significantly higher efficiency in UV-C: SpektrothermUV lamp: 40 % efficient

Medium pressure lamp: 12 - 15 % efficient

Lower electricity and operating costs Fewer lamps

Essential higher electricity and operating costs Shorter lifespan of lamps

Lower lamp operating temperature:SpektrothermUV lamp: 100 C

Medium pressure lamp: 800 C Medium pressure requires cooling at zero-flow

Low lamp aging and longer service life reduce operating costs

Medium pressure requires reactor temperature monitoring

Significantly less scaling on the protective quartz sleeves

Medium pressure lamps require a mechanical wiping system

Immediate restart possible Medium pressure lamps must cool down for 10 minutes Amount of liquid mercury:

SpektrothermUV lamp: 0 mg Amount of liquid mercury: Medium pressure lamp: up to 300 mg

Environmentally-friendly SpektrothermUV lamps are recycled by WEDECO

free of charge

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Thisbrochure

hasbeenp

rinted

onc

hlorine-f

ree

paper

ITT Water & Wastewater Herford GmbHBoschstr. 4

32051 Herford, GermanyTel +49 (0)5221 930 0Fax +49 (0)5221 930 [email protected]

What can ITT Water & Wastewater do for you?

Integrated solutions for fluid handling are offered by ITT Water & Wastewater as a world

leader in transport and treatment of wastewater. We provide a complete range of water,

wastewater and drainage pumps, units for primary and secondary biological treatment,

products for filtration and disinfection, and related services. ITT Water & Wastewater

operates in some 140 countries across the world, with own plants in Europe, China and

North and South America. Headquartered in Sweden, ITT Water & Wastewater has 5,800employees and turnover exceeding $1.6 billion (2007). The company is wholly owned

by the ITT Corporation of White Plains, New York, supplier of advanced technology

products and services.

www.itt.com

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