Biochemical Oxygen Demand (BOD) is an expression for the quantity of oxygen required for biological degradation of organic matter in a waste water sample. BOD measurement is used as a basis for the detection of biologically degradable organic matter in water and is therefore an important measurement of the effects of domestic and industrial waste water on sewage plants and outflow points. The difference between BOD and Chemical Oxygen Demand (COD) is that COD additionally registers biologically non-degradable organic matter.
The Lovibond BD600 is a 6 sample sensor system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen consumption while maintaining a constant volume. Thanks to the modern integral pressure sensors, it is no longer necessary to use mercury for pressure measurements.
The BOD level of a sample depends on the quantity of organic matter present, which can vary considerably. The Lovibond BOD measuring system BD 600 is therefore calibrated for the various sample volumes and the corresponding measuring ranges listed below. The overall measuring range of the system is 0 - 4000 mg/L
Range (mg/L BOD)
Sample Volume(ml)
0 - 40
428
0 - 80
360
0 - 200
244
0 - 400
157
0 - 800
94
0 - 2000
56
0 - 4000
21.7
For all measuring ranges the BOD is shown directly in mg/L
Applications include waste water, determination of biological activity, water treatment plants, analytical laboratories and scientific research.
Highlights of the Lovibond BD600 system;
User friendly sample setup and menu navigation
Large graphic display
Graphical and tabular representation of measured values
USB and SD card interface for easy data transfer to PC
Mercury-free environmentally friendly
Remote control to allow real time result display without compromising temperature
User-selectable time span from 1 to 28 days
Free individual programming of each of the 6 samples
Inductive stirring system included to ensure accuracy and consistency for duration of test
(4100 g, unit with bottles & batteries 5775 g, complete with stirring unit)
Biochemical oxygen demand (BOD) is an important measurement parameter for anyone discharging effluent or running a waste water treatment plant. It is a difficult test to run and there are very few resources online which help new users get to grips with the technique.
Camlab offer a range of different analysis options for BOD to suit all types of user. The options are outlined below; from traditional bottle and multi-meter based set ups to bespoke all in one systems. Camlab can offer both demonstrations and advice to new and existing users, which will allow them to get the best results from this difficult analysis.
Multi-Meter Based
Ideal for single BOD sample analysis along with the ability to measure other parameter analysis (pH, ISE etc.). Camlab supplies several options from market leaders.
Hach Multi-Meters and DO Probes
The IntelliCAL LBOD101 Luminescent Dissolved Oxygen Probe can be used with:
The BD 600 is a respirometric system for the determination of Biochemical Oxygen Demand (BOD). The BD600 is equipped with an automatic start feature, measurement does not start until the temperature in the samples is the same as that in the thermostatically controlled cabinet. The system comes with all you need for analysis of 1-6 samples.
WTW Oxitop System
The unique feature of this system is that the heads contain the sensor and a measuring unit for independent setting and recording allowing a more flexible system. Options include:
Oxitop-i IS -The OxiTop-i system is an easy-to-use BOD meter - Blue/Grey
Oxitop-IDS - The OxiTop-IDS provides versatility in measuring all kinds of aerobic degradation using different setups with Bluetooth connectivity to Multi 3630 IDS and Multi 3620 IDS meters. - Orange
Various system options available – contact us for details.
For an overview of the set up please watch the following Video.
Both bespoke systems have an extensive selection of accessories which includes their own brown glass flasks, overflow measuring flasks, stirring unit and reagents such as nitrification inhibitor and potassium hydroxide solution 45%. A thermostatic cabinet is an additional consideration.
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...