Biochemical Oxygen Demand

New OxiTop Heads
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New OxiTop Heads

Whilst most commonly associated with the monitoring of biochemical oxygen demand (BOD), the OxiTop system can be used for many types of respirometric testing including OECD biodegradability tests, soil respiration and biogas testing. The classical OxiTop heads have been around for many years and are tried and tested. This year, they have been modernised with two new groups of heads being releas...
How much water do I need to add to my COD vials?
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How much water do I need to add to my COD vials?

A chemical oxygen demand (COD) test is used to measure the amount of organic compounds in a water sample. It measures the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrate. You can see a video on the common method of testing COD with vials in our video here. The start of the COD testing meth...

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Did you know the BD600 BOD system is mercury free?

The new BD600 BOD measurement system from Lovibond replaced their Oxidirect system in 2015 and has proved to be a popular tool amongst users with it's handy remote control and built in graph features. But did you know that the system is also mercury free? [caption id="attachment_6963" align="aligncenter" width="300"] The new BD600 BOD system from Lovibond[/caption] The modern integral ...

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BOD Measurements using OxiTop Control Heads

Biochemical Oxygen demand (BOD) is an important parameter in water resource management to measure the quality of water and treatment results in wastewater treatment facilities. In routine applications BOD determination is used to check the waste water in the inflow and discharge effluent of waste water treatment plants. Depending on the measurement site and the type of discharge BOD values c...
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The BD600 BOD measurement system

The Oxidirect BOD measurement system has been replaced by Lovibond's new BD600 system, which has a range of additional features [caption id="attachment_6963" align="aligncenter" width="501"] The new BD600 BOD system from Lovibond[/caption] Principle of measurement The BD600 BOD system offers a manometric, respirometric BOD measurement. The oxygen consumed by microorganisms in a clo...

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What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)?

Ask the expert: What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)? Answer: Both COD and BOD test methods aim to give an indication of the amount of pollution in a water sample. COD is the amount of oxygen required to chemically breakdown the pollutants. Whereas BOD is the amount of oxygen required to do this biologically through micro-organisms. T...
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New cooled incubator with internal sockets

[caption id="" align="aligncenter" width="263"] Cooled incubator with glass door[/caption] The TC series of thermostatically controlled cabinets or cooled incubators, from Tintometer is used for continuous temperature control over a range of 2 °C to 40 °C. This makes them ideal for a wide range of different applications in industrial and research laboratories. In particular they are ideal fo...
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What does Lovibond's Oxi Direct BOD System have to do with Beer?

A little bit of light reading about Jospeh Williams Lovibond.. [caption id="attachment_4476" align="aligncenter" width="165"] Joseph Williams Lovibond 1833-1918[/caption] Joseph Williams Lovibond (1833–1918) was a British brewer who developed the world's first practical colorimeter as a means of ensuring the high quality of his beer. He was the originator of the Degrees Lovibond scale. ...
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Polyseed For Biochemical Oxygen Demand

Have fresh seed on demand every day with no handling of wastewater. Convenient, fast and economical BOD analysis with consistent results. Each capsule contains specialized microbial cultures ideal for use in a broad range of areas involving degradation of industrial and municipal waste. [caption id="attachment_785" align="alignright" width="144"] Polyseed Bottle[/caption] Features and Be...
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Why does my CW7000 BOD system have a EU plug?

[caption id="attachment_521" align="alignleft" width="150" caption="Camlab Water CW7000 BOD system"][/caption] The CW7000 manometric Biochemical Oxygen Analyser (BOD) comes with a couple of key parts, the main analysis module is actually battery powered but it uses an inductive stirring system to stir upo to six bottles fitted at any one time. This stirrer requires mains power to function, als...
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New BODTrak II from Hach for Biochemical Oxygen Demand measurement

[caption id="attachment_496" align="alignright" width="146"] Hach BODTrakII[/caption] The BODTrakTM II Apparatus measures Biochemical Oxygen Demand (BOD) using the respirometric method.  The BOD test measures the quantity of oxygen consumed by bacteria that oxidize organic matter in a water sample.  A pressure sensor monitors air pressure in the sample bottle and a stir bar continually mixes t...
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