PeCOD® 15 Minute COD Analysis The water quality monitoring system that is fast, accurate and does not use dichromate.
COD results in just 15 minutes, with no use of dichromate. PeCOD® is breaking the barriers to traditional COD analysis methods. PeCOD® offers a unique nanotechnology-based approach to COD analysis that overcomes many of the problems encountered by existing COD analysis methods, making it the new global standard for COD analysis. The core of the technology is the PeCOD® sensor, which consists of a UV-activated nanoparticale TiO2 (titanium dioxide) photocatalyst coupled to an external circuit. The high electrochemical potential of the TiO2 gives it a substantial advantage over the modest chemical potential generated by the dichromate method commonly used for COD analysis. The PeCOD® approach measures photocurrent charge originating from the oxidation of organic species contained in a sample to qualify. The result is that the user obtains the most accurate measurement of organic pollution, in less than 15 minutes, with no use of dichromate or other hazardous chemicals. PeCOD® systems are trusted around the world in a wide variety of applications, including: • Municipal wastewater treatment • Industrial and manufacturing sites • Food and beverage producers • Government regulatory agencies • National research laboratories • University and college laboratories
1. PeCOD® requires only three tubing ports for COD analysis 1) sample, 2) blank and 3) waste.
PeCOD® Features
2. Core sensor is a UV-activated nanoparticle TiO2 (titanium dioxide) photocatalyst. 3
3. Enhanced software package enables additional functionality, parameter sampling and reporting.
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4. Easy to use, “click and go” interface menu for all operations – analysis, calibration, flushing.
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5. Small unit footprint requires minimal bench space (235 x 375 mm) and is light weight (5 kg).
PeCOD® is making dichromate a thing of the past. Aside from the clear advantages of speed and safety, the PeCOD® approach is more versatile than the dichromate method. PeCOD® is extremely accurate across a broad range of organics. The powerful oxidizing potential of UV-illuminated TiO2 ensures that virtually all species will be fully oxidized giving a true measure of COD. An exceptional correlation can also be observed between PeCOD® COD and BOD results, due to the fact that PeCOD® does not require pre-digestion of the sample. COD Results from a Large Scale Wastewater Treatment Plant
Strong Correlation of COD Results 120 100
COD (mg/L)
80 60 Green PeCOD 40
Dichromate LR
20 0 A1 -20
A2
B1
B2
C1
D1
D2
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Sampling Location
Plot of PeCOD® COD (green range) and dichromate COD (low range vials) for various filtered waste water samples from various sampling locations.
Scatter plot of PeCOD® COD (green range) and dichromate COD (low range vials) for various filtered waste water samples.
PeCOD® can be configured to meet the specific needs of laboratory or process operations. 1. Laboratory Model a. Can be automated for multiple sample analysis b. Capability to add additional parameters such pH, EC, alkalinity, BOD and turbidity 2. Field Model a. Add the battery and carrying case and take it to the field b. COD can now be measured in the field 3. Automated Grab Sampling a. The PeCOD® can be configured to automatically grab samples from a low flow line or wastewater tank, at scheduled time intervals b. Capability to auto dilute, provide alarms, add additional parameters, auto-calibrate and auto-quality control 4. On-Line a. The PeCOD® process analyzer can be connected direct to high flow water lines b. Includes 4-20mA output c. Automatically filters, cleans, calibrates and analyzes
MANTECH INC. 160 Southgate Drive, Unit 2 Guelph, Ontario N1G4P5 Canada www.mantech-inc.com 519.763.4245
PeCOD® is a registered trademark of Aqua Diagnostic Pty.; may be registered in one or more countries. ©2014, MANTECH Inc. All rights reserved. Version PeCOD.V1