HomeMy WebLinkAboutCA_KROHNE__en_Water_070529_7023362700_V001 l
i
KROHNE
►achieve more
The Allure of Water.
Intelligent solutions for the water and wastewater industry.
r
a �
00
U �
c
Introduction KROHNE 3
The Allure of Water -
a KROHNE World. From space, our earth is a blue planet with
seemingly vast water resources. However, only
1.5 % of this water is usable fresh water. At
the same time, the increase in global popula-
tion and rapid industrialization put enormous
demands on the natural water resources.
Against this backdrop, it is clear how im-
portant it is to man and industry to have
an efficient, high-capacity potable water
supply and to have eco-friendly waste-
water treatment for the planet as well as
for the development of entire regions.
At the same time, the increasing competi-
tion in the field of supplying potable water
forces the operators to not only consistently
pursue the topics of process certainty and
availability, but also to examine the topic of
efficiency more closely than in the past.
As the worldwide leader in process measuring
technology, KROHNE's contribution is con-
siderable. Our product line covers the entire
range of measuring and analyzing techno-
logy, from individual measuring stations to
complete system solutions. In addition to the
complete range of products for measuring
Level and flow, we also offer analyzing pro-
ducts for ph value, conductivity, ion concen-
tration, redox and pressure. Servicing and
calibration services round out the portfolio.
In 1961, KROHNE introduced the first elec-
tro-magnetic flow meter (EMF) forwater,
wastewater, additives and sludge. Since then,
we have been able to win over those in the
water management community time and
again with the advantages of our innovations.
Today,we produce more than 60,000 electro-
magnetic flow meters annually in our plants
in the Netherlands, Brazil, India and China.
Water is the most important future mar-
ket worldwide. For this future market, we
develop and produce meters that always
set the example for the competition.
4
KROHNE - 85 years of experience and know-
how in the water and wastewater industry.
1921
Company founded as LUDWIG KROHNE & SOHN
in Duisburg; production of variable-area flow
meters for measuring the flow of air, gases and
Liquids
1955
The beginning of manufacturing mechanical
Level indicators for measuring liquids in tanks
and containers
1961
The first electro-magnetic flow meter(EMF) for
water, wastewater, sludge, etc.
1972
The first EMF with pulsed direct current field
excitation/automatic zero point offset for the
water and wastewater industry
1978
The first ultrasonic flowmeter for water, district
heating, etc.
1979
The first non-analog, but frequency-based elec-
tronics for EMFs for improved flow measure-
ment of wastewater and sludge
Introduction KROHNE 5
1981 2000
The first EMF measuring tube made of A1203 Construction of the third and world's largest
and sintered platinum electrodes for measuring and most accurate certified volumetric calibra-
the flow of iron-chloride, etc. tion system with an uncertainty of under
0,013 % relative to the total volume of the calib-
1983 ration tower, with a height of 43 m, suitable for
The first microprocessor-based electronics for wet calibration of sensors to DN 3000
cost-optimized manufacturing of EMFs for the
water and wastewater industry 2004
The first electro-magnetic flowmeter with auto-
1986 matic diagnostics/monitoring of the installation,
The first EMF with capacitative pickup and of the operating status and of the medium, as
without contacting the measuring electrodes well as meeting the requirements for the custo-
with the medium for measuring such things as dy transfer applications (01ML R 49)
aliphatic sludges
2005
1990 A new clamp-on flowmeter for temporarily or
The first radar level meter (FMCW- micro- continuously measuring the flow of existing
waves) for process tanks and digestion towers water/wastewater pipelines or for checking the
pumps, outputs, etc.
1994
The first straight tube Coriolis device for deter- 2006
mining mass flow rate and density of polymers, First large electro-magnetic water meter with
methanol, activated carbon, sludge, etc. battery power for an operating time of more
than six years with a cycle time of 1/5 Hz, MID-
1996 001-approved
The first electro-magnetic flowmeter with
integrated capacitive level measurement for
partially filled tubes
y
•�..
v � '�
•�
Waterworks
{
i
� V
v
1
e
1
10
T. .
The Haltern waterworks.
Responsible for the Rhine, Ruhr and Munsterland.
Waterworks KROHNE 9
*�
. . a .. -
The waterworks in the Westphalian town of Hal- popular local recreation area and around the
tern am See is one of a total of 13 waterworks waterworks and the Stever and Muhlenbach ri-
run by Gelsenwasser AG, one of the largest vers is sustainably used and thereby preserved.
providers of potable water in Germany. With
an annual delivery of around 105 million m3 of The supply to the Haltern waterworks is en-
water, it ranks among the largest of its kind in sured by a total of three sources: firstly,via
Europe. The service area includes more than ground water abstraction in the area around
20 communities of the northern Ruhr district the waterworks and the adjacent Haard and
and MOnsterland. A total of a million people, Hohe Mark forests. Secondly, by ground water
including commerce and industry are reliably accumulation via the Haltern and Hullern dams.
supplied with potable water and service water During this, the surface water stored in the
by the waterworks. 24 hours a day, 365 days a dams is conducted into the deep bottom layers
year. via seepage basins. And thirdly, by transferring
water from the Dortmund-Ems canal into the
The Haltern waterworks is situated in a hydro- dams during dry periods.
geologically favorable location, which owes its
advantages to the 200 m high Halterner sand. The Haltern am See waterworks has a trans-
This exposed location, in combination with port capacity of 577,000 m3/day and 128 million
responsible operation of the waterworks, is the m3 per year. The size of the water abstraction
guarantee that the natural environment in the area (protection zone 1) is 200 ha.
10 KROHNE weUhouse
The well house:
100 % certainty.
Thanks to 3x100% diagnostics.
The untreated water is abstracted OPTIFLUX meets this challenge
in the waterworks via groundwa- impressively. Because the new
ter wells or bank filtration wells generation of devices with the
and from dams and other types of IFC 300 signal converter offers a
surface water. 3x100% diagnostics for the instal-
lation, application and measure-
A large number of waterworks ment value and guarantees the
have decided on the OPTIFLUX operator maximum certainty on all
electro-magnetic flowmeter for levels.
monitoring the delivery rate into
the well houses. And for good Thus, the flow profile is per-
reason: because, compared to manently controlled within the
conventional mechanical Waltman measuring section. To this end, the
meters, OPTIFLUX offers key ad- magnetic field of the OPTIFLUX is
vantages. There is the significantly briefly switched-over. In this way,
Lower pressure loss, for example, two independent measuring fields
which has a positive effect on the result, one in the upper part and
power consumption of the pumps. one in the lower part of the measu-
Or the longer service life, due to ring section.
the fact that the device does not
have any mechanical parts in the Because any turbulence as a result
- measuring section,which ensures of an insufficiently straight feed or
that no grains of sand or minerals obstacles such as manhole covers
can be deposited. in or upstream of the sensor also
cause different types of turbulence.
*. And another problem is almost The same applies to bottom depo-
completely eliminated by the sits. In this case, a weak wanted
OPTIFLUX: on the path that the signal is induced in the lower part
untreated water takes from the of the sensor just as in the free or
_ NNE lake to the waterworks in conveyor upper part. OPTIFLUX uses this
1 i Q lines with up to DN 1200, heavy difference and alerts the operator
deposits can accumulate on the that there will be disturbances or
bottom of the pipes as a result measuring errors inside the pipe.
of the slow rate of flow. But such
deposits also accumulate inside In addition, each OPTIFLUX is
the flowmeter- undetected by already completely parameterized
the operator. Experiences with an at the factory-therefore, no re-
0 EMF DN 500 resulted in erroneous adjustment is necessary when the
measurements of around 13,000 device is installed.
r m3/h per year. At year's end, this
water tore a big hole in the conso-
lidated balance sheet.
- f �
The pressure filter system :
The heart of water treatment.
The quality of untreated water can vary widely in nature, depending on the extraction
point. Therefore around one third of the entire amount of ground filtrate in the water-
works is conducted through a total of nine pressure filter tanks filled with quartz chips
for the biological filtering out of manganese.
This is where the core process of water treatment takes place. Because, in addition to
flocculation, this is where the decision is made as to which suspended particles and
colloids are filtered out of the untreated water and in what amounts. And this answers
the question as to what quality and composition of water can ultimately be provided to
the consumer.
Gelsenwasser AG and other well-known waterworks have decided to use OPTIFLUX
in this key area of water treatment. In many regards, the EMF specialist for water is
predestined for this task: firstly, the device stands out due to its very high measuring
performance while also boasting extremely rugged construction. The steel contain-
ment is fully welded and leak-tested at the factory.
Secondly, each OPTIFLUX is thoroughly tested over a time period of 20 hours at tem-
peratures between -20 and +60 'C. These tests ensure a quality standard, which we
call "KROHNE-proved.". These tests far exceed the legal requirements and therefore
provide our customers with a high degree of investment security.
With so many outstanding properties, it is no wonder that the decision to use
OPTIFLUX came easily to so many waterworks.
12 KROHNE Booster pump facility
Booster pump works with
Collector well:
Everything under control.
/- Maximum system availability is indispensable
I for a waterworks -whether during water abs-
traction, water treatment or transport.
In the Haltern waterworks, a total of 16 rotary
pumps with electric drives take on the task of
supplying potable water to the public supply
network. The largest pumps can transport
3,500 m3 of water per hour over an elevation
of 110 meters.
Z WE
' �-�P kg Do different water qualities and flocculating
« F �. agents also mean different types of devices for
4 measuring the flow? Not necessarily. Gelsen
wasser AG, for example, has decided on only
,t j !► a one device and only one technology- the
OPTIFLUX. This holds true over the entire pro-
cess chain of the plant.
The advantages for the operator are obvious:
because OPTIFLUX covers every application
with a single electronics unit.A number of
potential savings for the waterworks result
from this. Because the use of only one device
for each flow measuring station not only creates
planning and investment security, but also
keeps the warehouse management stream-
lined.
In addition, there is the unique 3xl00% dia-
gnostics of the OPTIFLUX-whether for device
diagnostics, application diagnostics or out-of-
spec testing: all of these functions are already
standard on the OPTIFLUX. Periodic mainte-
nance intervals and unexpected downtimes are
therefore also a thing of the past.
1
� � KRONNE
r i
i
1 -
fr
Z. ..
F [ ockungsan[ ageEin
'
Daserpumpe
C)�7x
Le
Na
solo
let
� o
�� n
Flocculation system KROHNE 15
Corrosion protection and disinfection :
Finding the right degree.
In waterworks, the untreated water This measures the level in bas-
from all of the vertical wells is con- ins, containers and tanks without
solidated in deep containers. Here, contact. OPTISOUND also lends
sodium base liquor for increasing itself to being used in the inlet of
the ph value and monophosphate the system. Here, the flow in open
are dosed for protecting the pipe- channels can be determined indi-
line network and home installa- rectly via the height.
tion from corrosion. Optionally, a
chlorine bleaching system can be To ensure that these measure-
connected for dosing, to prevent ments can be made independently
microbiological effects. of influences such as fog, snow,
wind or foam formation, KROHNE
These dosings require the use of a developed the OPTIFLEX and
flowmeter, which stands out on the OPTIWAVE level meters.
one hand due to its extraordinary
measuring accuracy (+/-0.15 %) The OPTIWAVE works without con-
and which is also chemically du- tact, by means of radar, no appro-
rable and compatible. The solution: val is required for this device. The
OPTIFLUX. OPTIFLEX uses guided radar and
is equipped with a stainless-steel
During level measurement in the probe for guiding micro pulses.
deep containers, type BM 26 level
indicators with bypass flap indica-
tors from KROHNE are used. As an
alternative to this, the OPTISOUND
ultrasonic level meter can be used.
16 KROHNE Run-out
The run-out:
Clean and neat.
Flowmeters in the run-out of the waterworks
and in the distribution network work in re-
sponsible positions.After all, they measure
the potable water intended for the population
and must precisely comply with the strict legal
regulations.
This also affects the selection of the flowmeter
and its materials inside the measuring pipe.
Thus, only sensors that have liners that are
approved as per KTW and DVGW worksheet 270
may be used in Germany. The OPTIFLUX from
KROHNE meets these criteria and is the first
choice for many operators due in part to this
fact.
Another benefit: all OPTIFLUX meters are wet
calibrated on a certified volumetric calibration
station and are delivered with an official ca-
libration certification. Regardless of whether
it is a DN 2.5 or 3000 — each OPTIFLUX is also
available for use in the business transfer upon
2.497 request.
1
1 '
,tZb
-:Ft-�- v-.Z�w
1,
r�
1 ,
!. w Nuratertal\d ^' I,HV.w
MAN
r4♦
U
Nn
NIa111 rY ra
MA 11 raA.M
U47ae
Gray Ir M� I�
�G� Ir � .,tom ._ i +w•. ��.
1lar .'r\n.l nr.nF
INIl11f
•
7
�. '�
��\\
j��
r
WATERFLUX KROHNE 19
WATERFLUX -
a good reason to rethink things.
In remote points of the pressure network, there
is a number of internal and external transition
and control stations, where the use of a large
Mobile network water meter is necessary. WATERFLUX from
KROHNE provides a wide range of benefits at
this point in comparison to mechanical water
meters.
Thus, WATERFLUX allows precise and
reliab-le measurements for many years thanks to a
monocell-lithium battery. The lifespan of the
battery is at least six years in 1/5-Hz mode. In
this mode, the power consumption is lower than
that of a conventional electro-magnetic flowme-
Inte ter by a factor of 5,000.
There is a unique pipe design, which ensures
high sampling rates thanks to its free pipe
cross-section - also for the long term: with the
�i WATERFLUX, there is no loss of accuracy due to
WATERFLUX 2070 aging, sand or mineral deposits.
The forward/backward measurement is just as
standard as the automatic autonomous control.
Optionally, the device,which gets by comple-
tely without a filter, can be used with the GSM
telemetry function. WATERFLUX is built for the
business transfer as per OIML R 49 and MI-001.
The rugged, pressure-resistant containment
and the excellent price-to-performance ratio
round out the successful overall impression.
- - _ �
i
� �
.�
�`� .�
�' ��' -
---
� II „
/. _
-. I �,
_�- - � �
- _ =_ -
1
i � � 3
!� � �
I` s ',� s� � �
- - - �
4. 1 _^.��c � � � �s `i
� • • .
�' !
� .
r
l
l
.ti•
� - _� _ ' I
� 1 � � � �
a I ■
��� .
_��'�
..
_ _J
'+.- _ -
'`�_— - � -
.� -
-��
.,��_
Purification plant KROHNE 23
The Nuremberg purification plant
- a matter of cleanliness for 500,000 people.
All of the wastewater that accumulates in the
Large city of Nuremberg is purified in two close-
ly situated purification plants.
Purification plant 1 is by far the larger of the
two purification plants and has a capacity suffi-
cient for 1,400,000 inhabitants (EEC). The plant
in West Nuremberg was commissioned in 1931.
Since 1956, ongoing expansions and adjust-
ments have been undertaken in the plant in
order to increase the purification performance
and to ensure that the plant is now up-to-date
with the latest technology.
Purification plant 2 is the smaller of the two
Large purification plants in Nuremberg and is
designed to serve 230,000 inhabitants. It was
put into operation in 1913 as the "Nuremberg
South purification plant" and became the first
Large purification plant in Bavaria. Since 1984,
the system has been completely reconstructed.
Both purification plants are now two-stage
biological purification plants (aeration/aeration)
with a downstream sewage filter.
When it rains, up to four cubic meters of was-
tewater per second can be piped through the
plant. The purified water then flows into the
Pegnitz river. A total of around 130 employees
ensure the smooth and safe operation of the
Nuremberg purification plant.
24 KROHNE Mechanical purification
Flow measurement forpartially filled
pipelines using
kF
i 1, � t , � _ � �� � � - -� �►
I
I
Mechanical purification KROHNE 25
The Nuremberg 1 purification plant is a mecha-
nical-biological purification plant, which has
two-stage biological purification with nitrogen
and phosphate removal and a downstream was-
tewater filter. There are also sludge digestion
and sludge treatment systems on the site with
drainage and drying.
In the mechanical purification stage, the was- , KROHNEi
tewater,which flows in from the northern main
collector, the old town of Nuremberg and the
Pegnitz valley collector, is raised to the height
of the purification plant's inlet. This takes
place in purification plant 1 via a raising works that consists of three raising screw pumps. In
contrast, the wastewater from the southern
districts of the city (the southern relief collector
and southwestern main collector) flow to the
purification plant following the natural gradient.
The measurement of this flow in partially filled
pipelines (DN 200 to DN 1600) is a genuine
showcase field for the TIDALFLUX from
KROHNE. The tried and tested electro-magne-
tic meter, with its patented level measuring
system, ensures accurate and reliable flow
measurement in partially filled pipelines.
TIDALFLUX combines two measuring principles
in one device. Firstly, the average flow rate in
the partially filled cross-section is determined
electro-magnetically. During this, the device
makes the measurements via two measuring
electrodes,which are always under the surface
of the water and therefore cannot be obscured,
even at levels of only 10% of the inside diameter.
The level is determined using a capacitive con-
tact-less level meter integrated in the pipe wall.
The measurement takes place independently of
deposits and dirt on the pipe walls and is unaf-
fected by wave formation. Another benefit of the
device is the abrasion-resistant polyurethane
lining, which remains resistant even to sand and
stones.
In addition to flow, total volume and level, the
TIDALFLUX reliably reports when limit values
are undershot or exceeded.
t
' r
100 ,
Q 11
1
Pre-purification KROHNE 27
Measurement of untreated water
using electro-magnetic
flow meters.
The wastewater which is crudely cleaned by raking then
flows through a sand filtering system with an automatic sand
screener. The aired sand filter ensures that sand and other
mineral solids settle on the bottom of the sand filter basin.
At the same time, the fat in the wastewater floats to the
surface.
The wastewater now flows into the pre-purification. In pu-
rification plant 1, this consists of four rectangular settling
basins in which all undissolved pollutants that are heavier
than water settle as pre-purification sludge on the bottom of
the basin. Fats, oils and light plastics that were not comple-
tely removed in the aired sand filter float to the surface of
the water and are skimmed off.
Several electro-magnetic flowmeters from KROHNE are
installed in the untreated water inlet of the pre-purification
system. As a rule, they have linings made of polypropylene or
ebonite in order to guarantee a high degree of resistance to
solids and abrasive media.
28 KROHNE Biological purification stage
Measuring
return sludge
with OPTIFLUX.
As the first biological purification stage, a OPTIFLUX is different. Because,with the IFC
heavy-duty aeration system is used with oxygen 300, the latest generation of electro-magnetic
gas. flowmeters offers a measured value conver-
ter for all applications: for media with a high
Here, carbon compounds are removed from the proportion of solids (40 % and more). For media
wastewater in a total of four aeration basins with the lowest conductivity (> 1 pS/cm). For a
operating in parallel. The heavy-duty aeration rapid media change. For stroke piston applica-
system replaces the trickling filters in Nu- tions with pulsing flows and for turbulent flow.
remberg,which previously served as the first
biological purification stage. There is already the revolutionary A/D conver-
ter electronics from the factory, which has a
The city of Nuremberg has decided to use the signal-to-noise ratio that is 40 times better than
OPTIFLUX for measuring the return sludge in before. The result: even disturbed and noisy
the heavy-duty aeration system. And for good signals can be controlled using the OPTIFLUX.
reason. Because the reliable detection and
measurement of thick sludge using electro- Maximum certainty is also offered by our unique
magnetic flow meters was anything but easy 3xl00% diagnostics even for critical applica-
for the operators of purification plants until tions. In doing this, KROHNE is the first and
now: large proportions of solid bodies and gas only supplier to date that has supplemented
bubbles frequently caused a noisy measuring the usual device diagnostics by a complete
signal. Another problem with conventional application, accuracy and linearity test (out-of-
devices with a pulsed direct current field is that spec diagnostics). This provides the user with
sludge particles and grains of sand broke the reliable information about instrument condition,
electrochemical boundary layer with disturbing measurement quality and possible operating
regularity. The result of this:Voltage jumps. faults. In this way, for example, gas bubbles are
Even gas or micro-bubbles caused a similar safely and reliably detected.
effect and considerably affected the quality of
the induced measuring signal.
tfj
arm m
. f.
1 � - .r • A
1 _ ` � M,
II �
,. 7
ol OF It
uwnwr ."; l i g"
wl••
30 KROHNE Biological.purification stage
r'AO
woo
16
1
1
{, T
• Wes
— \ '`�
Biological purification stage KROHNE 31
Methanol measurement
with Coriolis flowmeters.
Light-duty aeration is the second biological purification stage. After the
primarily organic carbon compounds are broken down in the heavy-duty
aeration, reduced nitrogen compounds remain in the water. For the most
part, these are present in the form of ammonium.
The problem: in nature, ammonium becomes nitrite and nitrate. Nitrite
is poisonous, while nitrate in the waterways causes over-fertilization and
consumes large amounts of oxygen as it forms. What this means: a high
ammonium load can cause a die-off of fish in waterways and also allows
algae to bloom.
To prevent this, this process is accelerated in the purification plant. In this
way, each of the four aeration basins in the Nuremberg purification
plant 1 are divided into oxygen-rich and oxygen-free zones. Ammonium is
converted into nitrate (nitrification) in the oxygen-rich zones. Subsequent-
ly, the nitrate is converted to nitrogen in the unaired, oxygen-free sections
of the aeration basin ("denitrification").
Methanol is dosed in during this light duty aeration phase. It serves as a
source of carbon and is measured in a separate system (explosion hazard
area) with a mass flowmeter from KROHNE.
The OPTIMASS 7300 is practically made for this application. This high-end
device from the OPTIMASS Coriolis family is a truly multitalented device.
It reliably determines mass flow rate, density,volume, temperature, mass
or volume concentration and the proportion of solids with the utmost
precision. The OPTIMASS 7300 masters inhomogeneous mixtures with its
unique straight pipe design just as competently as nominal flows of 15 to
430,000 kg/h. This guarantees the highest degree of accuracy and reliabi-
lity in the typical applications of the wastewater industry- and it does this
completely independently of the respective installation situation on site.
32 KROHNE Settling basin
Dosing of iron chloride
and flocculating agent
with electro-magnetic
flow meters.
Subsequently, the wastewater highest level of precision is the
from the aeration basins of the top priority. After all, the dosing of
light load aeration system makes flocculating agents must always be
its way to nitrification and denitrifi- adjusted to the amount of waste-
cation in the settling basins. Here, water and the degree of turbidity.
the activated sludge is separated
from the wastewater. In the inlet of With a measuring accuracy of
the settling basin, iron chloride or 0.15 % of the measuring value
an equivalent substance is added and a reproducibility of 0.06 %,
for removing the phosphates -just OPTIFLUX sets the standard for
as with the sand filter. the competition in this showcase
field. And it does this comple-
For dosing the iron chloride, more tely unperturbed by sticky gas
and more purification plant opera- bubbles (vitality check). It even
tors put their faith in the exceeds the accuracy of field
OPTIFLUX with PTFE special lining. units with a SIL-2 certificate.
The easiest commissioning, high-
est degree of measuring precision Optionally, in addition to the PTFE
and maximum application certainty special lining, high-value ceramics
thanks to the unique 3x100% are also available for the
diagnostic packages make the OPTIFLUX. In this area, KROHNE
OPTIFLUX a safe investment at the can fall back on the knowledge
Lowest possible life cycle costs. and experience of more than two
decades, thanks to its close and
The comprehensive OPTIFLUX trusting cooperation with the
vitality check is carried out by de- Mannheim-based material and ce-
fault for each device. It meets and ramics specialists at Friatec - an
exceeds even the VDI/VDE/NAMUR edge that we gladly pass on to our
directive 2650. It includes an accu- customers.
J racy test, a check of the electrodes
for corrosion, a check of the lining
for damage and the conductivity
check, to name only a few points.
It is no wonder that the OPTIFLUX,
with so many outstanding proper-
ties, is the first choice even for
dosing flocculating agents. The
C.
EJF- ��--
•
tl S�
i
f NNW
10 "
'• Y Y 0
f � O
S
r
34 KROHNE Sludgetreatment
Flow measurement of sludge in the pre-thickener
and in the main sludge thickener
with electro-magnetic flow meters.
KROHNE
T
�~ KROHNE
Q
Studgetreatment KROHNE 35
w
•1 A
t
1 yp
J
The sludge treatment allows biological stabilization of the sewage sludge.
The central goal here is to induce controlled digestion, thereby keeping
the resultant smells to an absolute minimum.
To reach this goal, the main sludge from the biological purification stages
undergoes thickening in the so-called main sludge thickener and is tem-
porarily stored in sludge storage containers before digestion.
Both in the pre-thickener and in the main sludge thickener, more and
more purification plant operators put their faith in the latest generation of
OPTIFLUX electro-magnetic flowmeters that were introduced with great
success in 2004.
Thanks to the unique diagnostics package of the OPTIFLUX, the installa-
tion and operating status of the device are just as permanently monitored
as are the critical functions and components. A real source of potential
savings for the city of Nuremberg: finally,with such a high degree of cer-
tainty, not only is periodic maintenance no longer necessary, but unex-
pected repairs do not even occur.
� � 1
' M WC
t -
Gas metering in the gas compressor
with vortex flowmeters.
i
� F
Under anaerobic conditions in the digestion rating flow, flow volume at normal conditions
containers of the Nuremberg purification plant, and mass flow of gases and vapors. Even when
approximately half of the organic substances pressures and temperatures are fluctuating,
in the sludge is converted to sewage gas. This the compact unit provides stable and reliable
corresponds to approximately one third of the measurement results (thanks to ISP - Intel-
solid content. ligent Signal Processing). The temperature
compensation for saturated steam is already
During this, the sludge is continuously circula- standard on the OPTISWIRL 4070 C.
ted in the oval digestion towers at an operating
temperature of approx. 37 'C. This ensures The following steps serve to separate the water
optimum temperature distribution and, at the from the sewage sludge. First, the selected
same time, prevents sedimentation. sludge is thickened. The sewage sludge is
processed further in a centrifuge and in two
In the gas compressor of the Nuremberg 1 pu- other drying steps (thin layer dryer and sheet
rification plant, the flow measurement is done dryer). This allows a dry substance content of
using a vortex flowmeter from KROHNE. approx. 90 % to be achieved. For safety rea-
sons (risk of spontaneous combustion), the
With the OPTISWIRL 4070 C, KROHNE offers the dried sewage sludge undergoes a pelleting
only vortex flowmeter with integrated pressure process before it is put into interim storage
and temperature compensation in the 2-wire in dry sludge silos until it is transport out.
design. The device reliably determines ope-
38 KROHNE Communication
Communication at KROHNE:
Open for the future.
r As Ingration is a top priority
at KteROHNE
KROHNE field units are capable of
much more however. They meet
all of the prerequisites for being
-Y integrated in plant asset manage-
ment systems. And they allow the
supplying of serious integration
w1 •-MAN
t technologies such as FDT/DTM.
What is special about FDT/DTM:
The industrial automation in the for the first time, bus-independent
maximum system availability integration of the field technology
is indispensable for the water into the plant asset management
industry and its private and com- system is possible - no doubt a
mercial customers. In order to milestone for industrial commu-
be able to meet this key criterion nication, of which KROHNE had
365 days a year, 24-hours a day, and has a considerable share, as a
KROHNE invested its knowledge long-standing member of PACTwa-
and decades of experience, not re and the FDT group.
only in innovative products like the
OPTIFLUX with its unique 3 x 100% So it is no wonder that, since
diagnostics, but also in positioning the beginning of 2003, we have
itself as a visionary in important made DTMs available in the FDT
communication and integration 1.2 versions for a number of field
technology. units with HART and/or PROFIBUS
interfaces: OPTIMASS, electro-
Thus, system concepts in which magnetic flowmeters (two and four
the products of the most diverse wire), level radar and reflex radar
manufacturers harmonious work devices as well as H250 ESK and
together are becoming a reality via M 10 variable area flowmeters.
open, standard interfaces such as
HART, PROFIBUS and FOUNDATI-
ON FIELDBUS.
KROHNE has been actively fol-
lowing this development for years. PACTware and all KROHNE DTMs are
Whether you are talking about available free of charge and fully functional
electro-magnetic, ultrasonic,varl- without a license.They are included on a CD
able area flowmeters, mass, vortex in each delivery of the device and are availa-
or level: KROHNE field units are ble in the KROHNE download center.
open for the future. They commu-
nicate reliably with controllers,
control systems and PCs and can
also be used for the most diverse
control and regulating tasks.
Calibration KROHNE 39
Calibration from KROHNE:
Certainty that you can count on.
The true quality of a flowmeter can be seen under adverse conditions: for
example, when pressures and vacuums are fluctuating heavily during the
measurement of inhomogeneous measured substances or media with a
high proportion of solids.
Therefore, starting with the calibration,we at KROHNE do everything to
ensure that our flowmeters perform impressively,with the highest degree
of accuracy, reliability and reproducibility, even under such conditions.
Thus, for example, each KROHNE flowmeter is wet-calibrated in a direct
comparison of volumes, which is by far the most accurate calibration me-
thod. The calibration is carried out both for electro-magnetic and ultraso-
nic flowmeters on the world's largest calibration system at KROHNE-AI-
tometer in Dordrecht, in the Netherlands.
It is no wonder that the accuracy of the KROHNE calibration stations is
generally 10x better than that of the flowmeters to be tested. For our
customers, this not only means a maximum degree of certainty, but also
" guarantees the accuracy information of all flowmeters under reference
conditions.
Another benefit for our customers: KROHNE supplies the largest NKO-
,,., certified flowmeters worldwide. This guarantees the highest degree of
measuring accuracy- even under difficult operating conditions.
,a
v�
KROHNE Brazil Netherlands Turkey
KROHNE Conaut Controles KROHNE Nederland B.V. KROHNE ENELSAN
Germany Automaticos Ltda. Kerkeplaat 14 Gizden Sokak 4/3
Estrada Louis Pasteur,230 NL-3313 LC Dordrecht 80280 Gayrettepe Istanbul
KROHNE Messtechnik GmbH&Co.KG C.P.56 06835-080 EMBU-SP Tel.:+31 (0)78 630 6200 Tel.:+90 212 2670813
Ludwig-Krohne-Str.5 Tel.:+55(0)11-4785-2700 Fax:+31 (0)78 L30 6405 Fax:+90 212 2722442
D-47058 Duisburg Fax:+55(0)11 4785 2768 Service Direct:+31 (0178 630 6222 enelsan(aenelsan.com
Tel:+49(0)203 301 0 conautfaconaut.com.br infofakrohne.nl
Fax:+49(0)203 301 389 USA
infofakrohne.de China Norway KROHNE,Inc.
KROHNE Measurement Instruments KROHNE Norway A.S. 7 Dearborn Road
Sales,north (Shanghai)Co.Ltd.,(KMIC) Ekholtveien 114 Peabody,MA 01960
KROHNE Messtechnik GmbH&Co.KG Room 1501 NO-1521 Moss Tel.:+1 (800)FLOWING
Bremer Str.133 1033 Zhaojiabang Road Tel.:+47(0169 264 860 Tel.:+1 (978)535 6060(in MA)
21073 Hamburg Shanghai 200030 Fax:+47(0)69 267 333 infofakrohne.com
Tel:+49-(0140 767 3340 Tel:+86 21 6487 9611 postmasterrakrohne.no
Fax:+49-(0)40 767 33412 Fax:+86 21 6438 7110
nord(akrohne.de infofakrohne-asia.com Austria
postal code:10000-29999, KROHNE Austria GmbH. KROHNE
49000-49999 France Modecenterstra0e 14
KROHNE S.A.S. A-1030 Vienna Agencies
Sales,west/centre Les Ors BP 98 Tel:+43(0)1/203 45 32
KROHNE Messtechnik GmbH&Co.KG F-26103 ROMANS Cedex Tel:+43(0)1/203 47 78 Egypt
Ludwig-Krohne-Str.5 Tel:+33(014 75 05 44 00 infofdkrohne.at Algeria
47058 Duisburg Fax:+33(0)4 75 05 00 48 Argentina
Tel.:+49(0)203 301 416 info(akrohne.fr Poland Bulgaria
Fax:+49(0)203 301 10416 KROHNE Endra Sp.z.o.o. Chile
westfakrohne.de Great Britain ul.Stary Rynek Oliwski 8a Denmark
postal code:30000-34999. KROHNE Ltd. 80-324 Gdansk Ecuador
37000-48000,50000-53999, Rutherford Drive Tel.:+48(0)58 5209211 Ivory Coast
57000-59999,98000-99999 Park Farm Industrial Estate Fax.:+48(0)58 520912 Finland
Wellingborough wend raszkarakrohne.pl Gabon
Sales,south Northants NN8 6AE Ghana
KROHNE Messtechnik GmbH&Co.KG Tel:+44(0119 33 408 500 Republic of South Africa Greece
Landsberger Str.392 Fax:+44(0119 33 408 501 KROHNE Pty.Ltd. Hong Kong
81241 Munich infofakrohne.co.uk Bushbuck Close Indonesia
Tel.:+49(0)89 121 5620 Corporate Park South Iran
Fax:+49(0)89 129 6190 CIS Midrand,Gauteng Ireland
suedfakrohne.de Kanex KROHNE Engineering AG P.O.Box 2069 Iceland
postal code:0-9999,80000-89999, Business-Centre Planeta Midrand,1685 Israel
90000-97999 Office 404 ul. Tel.:+27(0)11 314 1391 Japan
Marksistskaya 3 Fax:+27(0)11 314 1681 Jordan
Sales,southwest 109147 Moscow/Russia midrandfakrohne.co.za Yugoslavia
KROHNE Messtechnik GmbH&Co.KG Tel.:+7(01095 911 7165 Cameroon
Riidesheimer Str.40 Fax:+7 f0)095 742 8873 Switzerland Canada
65239 Hochheim/Main krohnefadoLru KROHNE AG Columbia
Tel.:+49(0)6146 827 30 Uferstr.90 Croatia
Fax:+49(0)6146 827 312 India CH-4019 Basel Kuwait
rhein-mainfakrohne.de KROHNE Marshall Ltd. Tel.:+41 (0161 638 30 30 Latvia
postal code:35000-36999, A-34/35,M.I.D.C.Industrial Area, Fax:+41 (0)61 638 30 40 Lebanon
54000-56999,60000-79999 H-Block inforakrohne.ch Libya
Pimpri Poona 411018 Lithuania
Catalogue for measuring Tel.:+91 (0)202 744 2020 Singapore Madagascar
and control equipment Fax:+91 (01202 744 2020 Tokyo Keiso-KROHNE(Singapore) Malaysia
TABLAR Messtechnik GmbH pcufaysnLnet Pte.Ltd. Mauritius
Ludwig-Krohne-StraBe 5 14,International Business Park, Mexico
47058 Duisburg Iran Jurong East Morocco
Tel.:+49(0)2 03 305 880 KROHNE Liaison Office Chiyoda Building,#01-01/02 New Zealand
Tel:+49(0)2 03 305 8888 North Sohrevardi Ave. Singapore 609922 New Caledonia
kontaktratablar.de www.tablarde 26,Sarmad St.,Apt.#9 Tel 4651 6567 4548 Oman
Tehran 15539 Fax:(651 65679874 Pakistan
Tel.:+9821 8874 5973 tksfatokyokeiso-krohne.com.sg Peru
Fax:+9821 8850 1268 Philippines
KROHNE krohnerakrohneiran.com Spain Portugal
Sales companies I.I.KROHNE IBERIA,S.rL Qatar
p Italy Poligono Industrial Nilo Romania
KROHNE Italia Srl. Calle Brasil,n°.5 Saudi Arabia
Australia Via V.Monti 75 28806 Alcal6 de Henares Sweden
KROHNE Australia Ply Ltd I-20145 Milan Madrid Senegal
Quantum Business Park 10/287 Tel:+39 02 4300 661 Tel.:+34(0)91 883 2152 Slovakia
Victoria Rd Rydalmere NSW 2116 Fax:+39 02 4300 6666 Fax:+34(0)91 883 4854 Slovenia
Tel.:+61 2 8846 1700 infofakrohne.it krohnefakrohne.es Syria
Fax:+61 2 8846 1755 Taiwan
s krohnefakrohne.com.au Korea Czech Republic Tanzania
KROHNE Korea KROHNE CZ,spot.s.r.o. Thailand
Belgium Room 508 Miwon Bldg 43 SobfsickA 156 Tunisia
KROHNE Belgium N.V. Yoido-Dong Youngdeungpo-Ku 63800 Brno Hungary
Brusselstraat 320 Seoul,Korea Tel.:+420(0)545.242 627 Uruguay
B-1702 Groot Bijgaarden Tel.:00-82-2-782-1900 Fax:+420(01545 220 093 Venezuela
o Tel.:+32(0)2 4 66 00 10 Fax:00-82-2-780-1749 brnofakrohne.cz Vietnam
Fax:+32(0)2 4 66 08 00 krohnekorearakrohnekorea.com
o krohnefakrohne.be
w
z
x
o
Y
o www.krohne.com