Biochemical Oxygen Demand and Degradation Tests

BSB-Bestimmung mit OxiTop® von WTWBOD (Biochemical Oxygen Demand) is an important parameter when measuring for the quality of water bodies and the efficiency of water treatment plants by determining the degradation of carbons.
Using the official method of BOD5 the concentration of D.O. will be measured in diluted samples before and after incubation. When performing the “BOD self-check measurement” in a closed respirometer the absorption of the carbon leads to a gaugeable pressure change. In both cases the samples have to be incubated for 5 days at 20°C.

Degradation tests

General tests on bio-degradation like soil respiration or bio-degradability of new chemicals can conveniently be carried out using OxiTop®-IDS systems.

Online determination of BOD

Up-to-date UV-VIS sensors for constant monitoring of WWTP effluents of municipal wastewater have the possibility to measure BOD as well. It is an indirect method using the spectral correlation between COD (chemical oxygen demand) and BOD (adjustment with known BOD values from laboratory measurements) to calculate the current BOD.
BOD Determination DIN EN 1899-1

BOD Determination DIN EN 1899-1

Measuerement of diluted samples as standard method for BOD with optical and electrochemical sensors. 

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BOD determination according to DIN EN 1899-2

BOD determination according to DIN EN 1899-2

Respiromeric self-check method with pressure measuring heads. 

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BOD measurement with OxiTop<sup>®</sup>-IDS

BOD measurement with OxiTop®-IDS

Measurement of BOD according self check regulations at high sample volume and computer aided data sampling. 

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Aerobic and anaerobic degdartion methods with OxiTop<sup>®</sup>-IDS

Aerobic and anaerobic degdartion methods with OxiTop®-IDS

In combination with a Multi 3620 or 3630 IDS and special vessels many degradation test can be performed. 

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IQ SENSOR NET Spectral Sensors

IQ SENSOR NET Spectral Sensors

Reagent-free measurement of BOD in wastewater 

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IQ SENSOR NET Spectral Sensors

IQ SENSOR NET Spectral Sensors

Reagent-free measurement of BOD in rivers 

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IQ SENSOR NET

IQ SENSOR NET

Measuring system for every wastewater treatment plant for up to 20 parameters, including BOD. 

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photoLab<sup>®</sup> 7100 VIS

photoLab® 7100 VIS

Spectral photometer to measure BOD in the lab 

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