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Bello Zon® C H L O R I N E D I O X I D E G E N E R AT I N G P L A N T
ProM
inen
t®
Bello Zon® CDVa – compact and clear display
Chlorine Dioxide:Economical, Environmentally Friendly Disinfection
Since more attention is nowbeing paid to the secondaryreactions produced by con-ventional water disinfectiontreatments, the disinfection ofdrinking water and water forindustrial use with chlorinedioxide (ClO2) is gaining insignificance.
High strength disinfectionwith minimal environmentalimpact
Chlorine dioxide is an inte-resting alternative to chlorinebecause of the completelydifferent relationship involved,between action and reaction.Chlorine dioxide produces noorganic chlorine compoundswith those contaminants mostfrequently found in water, e.g.chlorophenols or halogenatedhydrocarbons (for examplehaloforms such as chloroformwhich is considered carcino-genic).
The compounds formed fromthe reaction of chlorine dioxidewith organic water contami-nants are therefore largelynegligible from the point ofview of quantitative, sensoryor toxicity considerations.This makes chlorine dioxide
the ideal disinfecting agent forthe treatment of drinkingwater, even when used forwater which contains organiccontaminants, e.g. surfacewater, or water containinghumic acid.
Minute quantities of chlorinedioxide are sufficient to disin-fect drinking water. In mostapplications, a concentrationof 0.1 mg ClO2/l water issufficient and the chlorinedioxide produced by theBello Zon® process is ideal forthe food and drinks industry.It is important to add thatresidual concentrations cau-sed by unavoidable contactwith the product cause noharm.
Chlorine dioxide can also beused to disinfect soft waterwith a high pH value. Its disin-fecting property is greaterthan that of chlorine, whichbecomes less effective as thepH value increases.
Bello Zon® CDKa – Chlorine dioxide from concentrated chemicals5
1200
1000
800
600
400
200
00
1020
30Zeit (min)
Keimzahlen (pro ml)
(LGA-Gutac te )
E. Coli
wilde Hefen
Pectinatus
Pediokokken
Milchsäurebakterien
Disinfection with Chlorine dioxide (0.3 mg/l)(approved by the independant German Authority LGA)
E. Coli
wild yeast
pectinatus
pediococci
lactic acid bacteria
germination index (per ml)
time (minutes)
Wherever sterile water isrequired for washing, rinsingor disinfecting, Chlorine dioxi-de produced by ProMinent'sBello Zon® plants is the supe-rior alternative to chlorine.
The Bello Zon® process isbased on the use of twoliquids. The resulting chlorine-free chlorine dioxide remainsdissolved in water and cantherefore be safely and pre-cisely administered. Thesafety measures required aretherefore fundamentally moresimple than with chlorine gasplants.
Bello Zon® plants producechlorine dioxide on site
Chlorine dioxide is a gaswhose physical propertiesprevent it either from being
bottled or compressed. Itsunstable nature would causeit to break down and storageis not commercially viable.Chlorine dioxide must there-fore be manufactured on sitein specially developed plants.
With the Bello Zon® processfrom ProMinent, chlorinedioxide can be simply andsafely produced from hydro-chloric acid and sodiumchlorite. The quantity of chlo-rine dioxide produced can
easily be adapted accordingto requirements by adjustingthe frequency of the solenoiddosing pump. This can becontrolled manually or auto-matically by connecting awater gauge or regulator.
The internationally renownedProMinent® solenoid dosingpumps pump the chemicalsinto a reactor where theycombine to form a solutionof chlorine dioxide. The con-centrate from the reactor
(approx. 20 g ClO2/l)is dilutedwhen it passes through a by-pass pipe. It feeds continu-ously into the flow of waterwhich is to be treated. Afundamental characteristic ofthis process is the productionof chlorine-free chlorine dio-xide solution which is adjust-ed precisely in accordancewith the application require-ments.
1 water gauge (contact, analogue)
2 main water pipe3 bypass pipe 1-2 m3/h4 bypass pump5 water monitoring pipe6 solenoid dosing pump
7 flow sensor8 reactor9 reactor housing
10 dosing valve (pressure sensitive)
11 mixer12 stop valve
13 ventilation valve14 suction device15 bypass monitor16 non-return-valve17 control with produc-
tion level display
18 Bello Zon® acids insafety vessel
19 Bello Zon® chlorite insafety vessel
20 D1C - chlorinedioxide meter
Bello Zon® Chlorine Dioxide Plant with Flow-Dependant Control
21 chlorine dioxide probe22 water readings monitor23 interlocking contact24 rinsing connector25 holding tank
230 V, 50/60 Hz
Säure Wasser ChloritChloriteWaterAcidBypass
Bypass
Bello Zon
START
STOP
START
STOP
l/h
25
40
60
80
16
815
14
18 19
6
7
179
1211
13
6
1
3
12
2
5
20
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2122
4
25
10
Bello Zon Bello Zon
SäureAcide
ChloritChlorite
Applications
Because of their compactform, simple operation andhigh safety standards theBello Zon® plants are suitedto many applications, suchas:
Care of public water supply,the food industry and thedrinks industry
� treating drinking water andwater for industrial use
Apart from highly effectivedisinfection, long term pro-tection against bacteria in thedistribution network is provi-ded for. Moreover, chlorinedioxide helps to removeodour and taste from water(breaking down phenols,algal metabolic porductsetc.). As chlorine dioxidedoes not react with ammonia,less is needed than whenchlorine is used.
Brewing and drinks industry
� bottle cleansing
Even when pH levels arehigh, the Bello Zon® providesprotection against micro-organisms as the chlorinedioxide level is controlledby residual measurementin the cold water zone. Themeasurement of chlorinedioxide content takes placeonline with the aid of theDULCOTEST® chlorine dioxidemeasuring probe.
Also within the drinks indu-stry the Bello Zon® can beused in:
� rinsers� CIP (cleaning in place)
plants� pasteurisers� recoolers� autoclaves
Milk industry
� vapour treatment
Re-using condensed waterhelps to reduce the con-sumption of fresh water.Chlorine dioxide protectsagainst micro-organisms.
Food Industry
� treatment of water inwhich fruit and vegetablesare washed
� treatment of water which isto be used in the prepara-tion of fish and seafood
� preparation of poultry
Chlorine dioxide prolongsshelf life and provides effec-tive protection from salmo-nella.
Paper Industry
� by tackling myxobacteriain the water circulatingaround the paper plant,operating costs can beconsiderably reduced.
Bello Zon® Chlorine Dioxide Plants:Modern Technology with Great Advantages
Simple to operate
With the aid of the micro-processor control system thedosage quantities are setdirectly. When the plant isoperating in automatic mode
(proportional to flow) therequired dose per litre canbe pre-determined, e.g.0.15 mg/l. The LCD controldisplay also provides informa-tion on the plant productionlevels and the flow throughthe main water pipe.
Additionally the plant canadminister chlorine dioxide inaccordance with the require-ments indicated by the read-ings to cyclical water systemsusing controller.
Remote display of chlorinedioxide production levels
The plant production levelscan be transmitted to a re-mote measuring unit via ananalogue gauge, as can thevolume of flow through themain water pipe when theplant is operating under flow-proportional control.
Optimum safety technology
Bello Zon® chlorine dioxideplants from ProMinent are
equipped with a flow sensorfor chemicals which guaran-tees a consistently optimumflow through the system. Italso monitors the flow ofbypass water. The levels inthe chemical containers areequipped with a relay switchwhich enables the triggeringof warning sign: “chemicallevels low”. The reactor vesselis automatically ventilated viaan injector and a solenoidvalve.
High chlorine dioxide yield
The optimal current reactorguarantees a high yield ofmore than 90 %. It is contain-ed in an anti corrosive hous-ing, separate from the dosingpump and the dosage moni-tor.
Quick to install
The hydraulic and electricalcomponents of the Bello Zon®
chlorine dioxide plant arrivepre-wired and ready for oper-ation, housed in a plasticconsole. If a bypass pump isrequired, it can be connecteddirectly.
Chlorine dioxide needs fordifferent applications
Plants from the CDVa rangewhich operate using dilutedchemicals (9 % hydrochloricacid and 7.5 % sodium chlori-te) are suitable for small tomedium production capacityrequirements.
Plants from the CDKa rangehave a medium to large pro-duction capacity. They use30-33 % hydrochloric acid
and 25 % sodium chlorite. Athird pump adds the additio-nal water required for dilutingthe chemicals in the reactor.
The models in this rangealready comply with the newDVGW1 -Document W624“Dosing plants for disinfectingand oxidising agents; dosingplants for chlorine dioxide”.
Chlorine dioxide can bemeasured online usingamperometric sensor tech-nology
The DULCOMETER® measur-ing and regulating technologymakes it possible to measureprecisely thequantity of chlori-ne dioxide inwater.
The chlorine diox-ide measuringcell DULCOTEST®
from ProMinentuses an ampero-metric measuringsystem which isboth the mostaccurate, andeasily reprodu-ced, method ofmeasurement. The calibrationresults from the DPD method(colorometric chlorine dioxidemeasurement). Chlorine dioxi-de concentrations of between0 - 10 mg/l may be measured.The measuring cells are con-structed from PVC andAcrylicglass. They may besupplemented with a pHand/or Redox probes andare supplied in three valueranges. They may be used
equally effectively in freshwater and salt water.
DULCOMETER® D1C control-lers correspond to real setvalues and set the productionlevels in accordance with thevarying values.
Online measuring technology with theDULCOMETER® D1C controller and chlorinedioxide probe
1) German monitoring organisation
Subject to technical alterations.Printed in Germany / PT BEZ 009 05/00 GB
Technical Data
Bello Zon® Dosage Max. Operating Max. Dosage Dosing Max. suc- Volume Weight Current chlorine operating tempera- stroke per com- pump tion level, (H x W x D) uptakedioxide* pressure ture frequency ponent* type dosing pump** (max.)
Type g/h bar °C str./h l/h Bello Zon®- m. wg mm kg 230 V 115 Vdesign
CDVa 35 46 10 10 - 40 7200 1.15 G/4 - 1601 1.65 1125 x 900 18.8 1.8 A 3.0 ACDVa 60 66 8 10 - 40 7200 1.65 G/4 - 1201 2.35 x 220 18.8 1.8 A 3.0 ACDVa 120 130 8 15 - 40 7200 3.25 G/4 - 1002 0.93 19.2 1.8 A 3.0 A
CDVa 220 225 10 10 - 40 6000 5.63 G/5 - 1605 1.3 1350 x 950 55.0 6.9 A 12.2 ACDVa 400 400 10 10 - 40 6000 10.0 G/5 - 1310 1.9 x 380 55.0 6.9 A 12.2 ACDVa 600 600 8 15 - 40 4620 15.0 Vario 12017 7.0 (without 57.0 1.7 A 3.4 A
pre mixer)CDVa 2000 2000 7 15 - 40 4380 50.0 Sica 12050 7.0 1850 x 1300 135.0 3.4 A 6.8 A
x 430
Bello Zon® Dosage Max. Operating Dosing Max. Dosage Dosing Max suc- Volume Weight Current chlorine operating tempera- pump stroke per com- pump tion level, (H x W x D) uptakedioxide* pressure ture C, S, W frequency ponent* model dosing pump** (max.)
Type g/h bar °C str./h l/h Bello Zon®- m. wg mm kg 230 V 115 Vdesign
CDKa 150 150 10 10 - 40 S, C 7200 1.0 G/4 - 1601 1.7 1350 x 950 55 5.2 A 9.5 AW 6000 5.5 G/5 - 1605 1.3 x 380
CDKa 420 428 8 15 - 40 S, C 7200 2.9 G/4 - 1002 0.9 1350 x 950 57 2.7 A 5.1 AW 4620 15.7 Vario 12017 7.0 x 380
CDKa 750 750 8 15 - 40 S, C 6000 5.0 G/5 - 1605 1.3 1610 x 1100 82 7.7 A 13.8 AW 7320 28.0 Vario 12026 7.0 x 400
CDKa 1500 1500 8 15 - 40 S, C 6000 10.0 G/5 - 1310 1.9 1850 x 1300 135 6.8 A 12.8 AW 4380 55.0 SIC 12090 7.0 x 430
CDKa 6000 6000 5 15 - 40 S, C 7320 39.0 Vario 09039 4.0 2150 x 2000 420 3.4 A 6.7 AW 7720 215.0 SIC 07220 5.0 x 470
* Metering specifications are made with respect to 5 bar back pressure (CDVa 7 = 3 bar) and 20 °C ambient temperature.** Suction levels at 100 % stroke length
Premixer Part number Volume Length Weight(net)
liter mm kg
CDKa 150/CDVa 220 740649 1.5 572 2.4CDKa 420/CDVa 400 740650 4.5 954 5.5CDKa 750/CDVa 600 740832 7.0 1054 7.0CDKa 1500 1001000 13.4 1400 15.0
ProM
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t®
Addresses and delivery informationmay be obtained from the manufacturer:ProMinent Dosiertechnik GmbHIm Schuhmachergewann 5-11D-69123 HeidelbergPostfach 10 17 60 · D-69007 HeidelbergPhone: +49 (6221) 842-0Fax: +49 (6221) [email protected] · www.prominent.de