Tintometer%20GmbH

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Tintometer GmbH

• Lovibond Product Training Water Analysis
• Instrumentation - Reagents - Applications
• presented by Dipl. Ing. Helmut Reber

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History

• 1885 Joseph William Lovibond being in the
  brewery business started the foundation of the
  Tintometer Ltd. in Salisbury/England. He
  introduced the Lovibond colour scale and the
  first colorimeter ever.
• 1953 Publication of the first edition of the
  book "Colorimetric Chemical Analytical Methods
  (CCAM)". Colorimetric Analytical Equipment was
  introduced using reagent tablets as an
  alternative to the liquid chemistry.
• 1967 Foundation of the Tintometer GmbH Company
  in Dortmund/Germany by Cay-Peter Voss.
  Technical backup and service together with
  closer contact leading to prompt supply of
  instrumentation to customers in Continental
  Europe.
• 1982 Introduction of the first photometer
  systems for water analysis.
• 1985 Centenary of The Tintometer Ltd. in
  Salisbury England with congratulations by the
  Prime Minister Margaret Thatcher.
• 1997 Certification according to DIN ISO 9001 by
  DQS. 30 years of successful activities of the
  Tintometer GmbH in Dortmund/Germany.
• Today Research, development and equipment
  production of water analytical systems and
  reagents for various applications. Global
  marketing of Lovibond products.

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Methods and Products
tablet count method
MINIKIT
titrimetric methods
speed test
MINIKIT
Comparator CHECKIT Test Kit
visual methods
colorimetric methods
CheckitDirect MaxiDirect MultiDirect SpectroDire
ct
photometric methods
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Principle of Photometric Measurement
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I0
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Electromagnetic spectrum
h
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Absorption of light
Red
Red
Red / Blue light
White light
700 nm
700 nm
STOP
Green
550 nm
550 nm
450 nm
450 nm
Blue
Blue
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Absorption of light
I0 Intensitiy of the entering light
I Intensitiy of the transmitted light
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Principle of Photometric Measurement
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I0
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Schematic diagram of a wastewater treatment plant
(activated sludge plant)
Oxygen supply
Waste feed
Effluent
Clarifier
Aeration tank
Sludge Return
Waste sludge
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Important Wastewater Parameter
Waste water treatment plant
Nitrogen means - Ammonia - Nitrate - Nitrite
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Principle of MaxiDirect
Detector
Detector
Interference filter
Interference filter
LED
Measuring beam
LED
LED
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Principle of PoolDirect and MultiDirect
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Principle of SpectroDirect

• Microprocessor unit

Tungsten halogen lamp
Movable mirror
Silicon photodiode For checking the optical
system the SpectroDirect has an integrated
Didymium-filter, which is placed automatically in
front of the detector during self test.
Monochromator
Sample chamber
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COD-BOD
BOD
COD
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COD-BOD Relationship

• Characteristics
• lt 1,7 Easy degradable / nearly complete
• decomposition
• 1,7 10 Incomplete decomposition / reasons
• Some of the material is not degradable
• Inhibition because of toxic ingredients
• Slow adaptation of microorganisms
• gt 10 No decomposition / reasons
• Persistent ingredients
• Complete inhibition because of toxic
  substances

COD/ BOD5 Relation

• 20 non degradable organic material
• 80 degradable organic material

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BOD - Biochemical Oxygen Demand
? p BOD

• Pressure Sensor
• Gasket
• CO2Absorber
• Glass Bottle
• Gas Phase
• Waste Water

Measurement corresponds to the process during
waste water treatment
Bacteria
Corg O2
CO2 Cell mass
Carbon dioxide
Organic Oxygen Materials
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BOD5

• BODn1 gt BODn (20,6 p.d.)
• BOD5 ? 70 degradation of total BOD

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BOD-Graph

• A Idealised BOD-Graph
• B Nitrification occures (use
• nitrification inhibitor N-ATH)
• C Measurement is overrange (change
  measuring range or dillute sample)
• D Measurment system is
• leaky or anaerobiosis occurs
• E Microorganisms were not
• pre-adapted choose a
• suitable inokulum

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pH-Sensor
Buffer solution pH 7
Metal lead for pH voltage
Metal lead for pH voltage (Reference Ag/AgCl
element)
Reference Elektrolyte
Reference diaphragm
pH glas diaphragm
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pH-Value
SL_1
SL_2
Potentialin mV
pH-value
U_AS
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Conductivity- Sensor
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Oxygen-Sensor
Refill opening
O-Ring seal
Sensor shaft
Membrame cap
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Principle of Turbidity Measurement