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An Element for Your Success

Unabhängige,Independent consultantsberatende and und planning planende engineers Ingenieure for water, waste water, solid waste and environmental für Wasser-, Abwassertechnologies-, Abfall- und Umwelttechnik

Hannover Hannover ∙ Erfurt

COD Determination

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Quick COD (LAR)  Measurement Method: • Thermal combustion at 1200°C which guarantees the complete oxidation of the sample without reagents.

• Then measured with an NDIR detector

 Reliability: • High reliability – 98% availability

 Sensitivity: Measurement range: • 10-150 mg/l COD • 100-2,000 mg/l COD • 500-5,000 mg/l COD • 1,000-8,000 mg/l COD • 20,000-250,000 mg/l COD • More ranges on request

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Quick COD (LAR)

 Calibration: • Not specified

 Performance: Feautures and accessories: • Catalyst-free technique • Reagent-free analysis • No filtration necessary • No memory effects • Very low maintenance and operational costs • Auto start option • Analyser available minimum 98% • Multi stream measurement (optional) • Monitors up to six streams

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Quick COD (LAR)

 Equipment Configuration: • Designed for wall mounting, outdoors or indoors. Rail- and stand-mounting options

are available. • weatherproof, and lockable. Dimensions • Width 700 x height 1,020 x depth 520 mm Weight • 115 kg (standard)

 Sample Volume: 10-600 microliter  small

 Sample Preparation • Maintenance- free particle cutter • Optional homogeniser for the continuous homogenisation of samples

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Quick COD (LAR)

 Response Time: • 1-2 minutes

 Particle Tolerance: • Max. 0.8mm according to ISO 8245

 Measurement interval • 1 – 3 minutes - depending on the application

 Reagent Consumption • Only distilled water and a small amount of inexpensive acid required

 Reagent consumption: • No reagent

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

CAA- Continuous Auto Analyzer (PAI)

 Measurement Method: • Real continuous automatic monitoring of a wide range of parameters in liquid sample using these analytical techniques: • Potentiometry • Conductivity • Photometry • Fluorimetry  Reliability: • Not specified  Sensitivity: • not specified.

 Calibration • Manual/automatic (optional)

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

CAA- Continuous Auto Analyzer (PAI)

 Performance:

Feautures and accessories:

Accessories • Not specified Special features • Contrary to other techniques which analyze different samples, analyse the same sample continuously. • Cacluation of contaminant loads even if rapid changes in concentration may occur.

Sample Condition: • Pressure: 0 bar with sample pump. Higher pressures on demand • Flow rate: application dependant • Temperature: >0-50 º C (application dependant)

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

CAA- Continuous Auto Analyzer (PAI)

 Equipment configuration:

• Layout of CAA for ethylone oyide in glycol/water mixtures

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

CAA- Continuous Auto Analyzer (PAI)

 Dimensions:

• Housing: wall mounting, stainless steel and plastic

• Width ±400 mm x depth: 270 mm x heigt: 910 mm • Weight: approximately 30 kg

 Information transfer: • Transmitting results to process control an analog output ( (0)4- 20 mA) is used.

 Equipment safety: • Two separated housings to protect the electronics from any hazardous vapour and liquids.

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

CAA- Continuous Auto Analyzer (PAI)

 Operation :  Inbuilt toch screen for manual control of CAA analyser . • Results are displayed in numerical or graphical

presentation

 Operation Notification and Failure: • System fault: in case of system failure the alarm contact is triggered. • Threshold alarm (optional): relays for threshold alarm are available. •  Response Time: • Not specified

 Particle Tolerance: • Not specified

 Measurement interval • continuous

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Liquiline System CA 80 (EH)

 Measurement Method: • Established COD dichromate method directly comparable to laboratory results.

 Reliability:  ± 10 % according to potassium hydrogen phthalate test  Sensitivity: • 10-5,000 mg/l COD • 40-20,000 mg/l COD

 Calibration • Automatic calibration and cleaning User-configurable measuring, cleaning and calibration intervals • Zero standard: 500 ml per month given a calibration interval of 48 h. (no dilution module) • Standard 1: approx. 90 ml per month given a calibration interval of 48 h (no dilution module)

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Liquiline System CA 80 (EH)  Calibration Interval: • 1 h to 90 days, depending on the application and ambient condition

 Performance: Features and accessories: Accessories – Kit CA8x/CAT860: wall mounting – Kit CA8x/CAT860: housing bottom – Kit CA8x: door with window – …  Sample Characteristics: • Volume: 8 ml per measurement • Temperature: 4 to 40 °C (39 to 104 °F) • Consistency: Low solids content, aqueous, homogenized

 Measuring interval: • Continuous (approx. 55 min), adjustable 30 min to 24 h

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Liquiline System CA 80 (EH)

 Equipment Safety: Electrical safety • According to EN/IEC 61010-1:2010, Class I equipment

• Low voltage: overvoltage category II • For installations up to 2000 m (6500 ft) above MSL

 Information Transfer: • Not specified

 Particle Tolerance: • Not specified

 Detection Limit: • Not specified

 Ambient temperature range • 5 to 40 °C (41 to 104 °F) • Humidity 10 to 95%, not condensing

Hannover Oldenburg ∙ Erfurt Hannover ∙ Bremen Erfurt

Comparison

LAR PAI EH

+++ + +++ Reliability

+ ++ +++ Sensitivity

+++ ++ ++ Performance