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Biochemical Oxygen Demand - BOD

Biochemical oxygen demand or B.O.D. is a chemical procedure for determining the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. It is not a precise quantitative test, although it is widely used as an indication of the organic quality of water. It is most commonly expressed in milligrams of oxygen consumed per liter of sample during 5 days of incubation at 20 °C and is often used as a robust surrogate of the degree of organic pollution of water.

BOD Bottle with YSI Stirring BOD Probe.
BOD Bottle with YSI Stirring BOD Probe.BOD Bottle with YSI Stirring BOD Probe. YSI 5100 and 5010 BOD Bottle probe.YSI 5100 and 5010 BOD Bottle probe. YSI ProOBOD Optical BOD ProbeYSI ProOBOD Optical BOD Probe

 

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BOD directly affects the amount of dissolved oxygen in rivers and streams. The rate of  oxygen consumption is affected by a number of variables: temperature, pH, the presence of certain kinds of microorganisms, and the type of organic and inorganic material in the water.

The greater the BOD, the more rapidly oxygen is depleted in the stream. This means less oxygen is available to higher forms of aquatic life. The consequences of high BOD are the same as those for low dissolved oxygen: aquatic organisms become stressed, suffocate, and die.

Sources of BOD include topsoil, leaves and woody debris; animal manure; effluents from pulp and paper mills, wastewater treatment plants, feedlots, and food-processing plants; failing septic systems; and urban stormwater runoff.

BOD is affected by the same factors that affect dissolved oxygen. BOD measurement requires taking two measurements. One is measured immediately for dissolved oxygen (initial), and the second is incubated in the lab for 5 days and then tested for the amount of dissolved oxygen remaining (final). This represents the amount of oxygen consumed by microorganisms to break down the organic matter present in the sample during the incubation period.

View the new optical ProOBOD probe and learn more about this technology.

YSI Professional Plus Shown with Single Parameter Cable and Probe Assembly
 

Professional Plus

Handheld Multiparameter Instrument

 

The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

 

YSI ProODO Measuring Dissolved Oxygen in Aquaculture
 

ProODO

Handheld Optical Dissolved Oxygen Meter


"We are very pleased with the convenience, usability, and ruggedness of the ProODO; and highly recommend it to anyone needing to monitor dissolved oxygen."

 

The YSI ProODOTM handheld dissolved oxygen meter provides extreme durability for measuring DO with optical, luminescent based technology for field or lab.

 

YSI Pro20 Lab or Field Dissolved Oxygen Meter
 

Pro20

Lab / Field Dissolved Oxygen

 

The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the instrument's design.

 

YSI 5000/5100 Laboratory BOD and DO Meters
 

5000 / 5100

Laboratory Instruments for BOD Tests

 

Both instruments feature: auto-calibration, large, graphic displays and low keypad profiles for maximum efficiency.

 

YSI BOD Analyst Pro Screen Shot
 

BOD Analyst Pro™

Desktop Software

Automatically calculate BOD/CBOD values with the BOD Analyst Pro desktop software.

 

YSI 4010-1 Laboratory Instrument
 

MultiLab 4010-1

Laboratory Instrument for pH, ORP, conductivity and BOD in any combination

Perform accurate lab pH, ORP, conductivity or BOD measurements with the YSI 4010-1.

 

YSI MultiLab 4010-3 Laboratory Instrument
 

MultiLab 4010-2 and 4010-3

Laboratory Instruments for pH, ORP, conductivity, BOD and ISEs in any combination

Perform accurate lab pH, ORP, conductivity, BOD or ISE measurements with the YSI 4010-2 or 4010-3 in any combination.

 

YSI IQ SensorNet 2020 XT Wastewater Monitoring System
 

IQ SensorNet 2020 XT

Improve Operational Efficiency with Continuous Data

With an easily scalable solution, the 2020 XT allows for the connection of up to 20 sensors. This modular plug-and-play system allows you to monitor the water quality in your wastewater system continuously and accurately.

"The simple cabling infrastructure - being able to run one cable that provides both power and data-transfer made so much sense."

 

YSI IQ Sensor Net 182 XT Stacked on Modules
 

IQ SensorNet 182 Models

Improve Operational Efficiency with Continuous Data

With an easily scalable solution the 182, 182 XT, and 182 XT-4 allow for the connection of 1-4 sensors depending on which terminal you choose. Add sensors at any time and at any location or change them out with ease. This completely modular plug-and-play system allows you to monitor the water quality in your wastewater or aquaculture system continuously and accurately.

 

YSI Pro Plus BOD Lab Kit, US
 

603165 Pro Plus BOD Lab Kit US

Pro Plus meter, BOD probe, Lab dock, US power supply

 

YSI Pro Plus BOD pH Lab Kit, US
 

603166 Pro Plus BOD pH Lab Kit US

Pro Plus meter, BOD probe, Lab quality pH probe, Lab dock, US power supply

 

YSI Pro Plus BOD/DO Lab and Field Kit, 4-meter, US
 

603167 Pro Plus 4-Meter BOD/DO Lab and Field Kit US

Pro Plus meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, US power supply, carrying case, cable management kit

 

YSI Pro20 BOD Lab Kit, US
 

603168 Pro20 BOD Lab Kit US

Pro20 meter, BOD probe, Lab dock, US power supply

 

YSI Pro20 Lab and Field Kit, 4-meter, US
 

603169 Pro20 4-Meter Lab and Field Kit Polarographic US

Pro20 meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, US power supply, carrying case, cable management kit

 

YSI ProODO Lab and Field Kit, 4-meter, US
 

603194 ProODO 4-Meter Lab and Field Kit US

ProODO meter, ProOBOD probe, 4-meter cable with optical DO, Lab dock, US power supply, carrying case

 

YSI ProODO Kit BOD Lab US
 

603195 ProODO Lab Kit US

ProODO meter, ProOBOD probe, Lab dock, US power supply

 

YSI ProODO Kit BOD Lab International
 

603196 ProODO Lab Kit International

ProODO meter, ProOBOD probe, Lab dock, International power supplies

 

 YSI ProODO Kit BOD Lab US Pro
 

603197 ProODO Lab Kit US Pro

ProODO meter, ProOBOD probe, Lab dock, US power supply, BOD Analyst Pro desktop software

 

YSI ProODO Kit BOD Lab International Pro
 

603198 ProODO Lab Kit International Pro

ProODO meter, ProOBOD probe, Lab dock, International power supplies, BOD Analyst Pro desktop software

 

YSI ProODO Lab and Field Kit, 4-meter, International
 

603199 ProODO 4-Meter Lab and Field Kit International

ProODO meter, ProOBOD probe, 4-meter cable with optical DO, Lab dock, International power supply, carrying case

 

YSI Pro Plus BOD Lab Kit, International
 

603219 Pro Plus BOD Lab Kit International

Pro Plus meter, BOD probe, Lab dock, International power supplies

 

YSI Pro Plus BOD pH Lab Kit, International
 

603220 Pro Plus BOD pH Lab Kit International

Pro Plus meter, BOD probe, Lab quality pH probe, Lab dock, International power supplies

 

YSI Pro Plus BOD/DO Lab and Field Kit, 4-meter, International
 

603221 Pro Plus 4-Meter BOD/DO Lab and Field Kit International

Pro Plus meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, International power supplies, carrying case, cable management kit

 

YSI Pro20 BOD Lab Kit, International
 

603222 Pro20 BOD Lab Kit International

Pro20 meter, BOD probe, Lab dock, International power supplies

 

YSI IQSensorNet NiCaVis UVVIS Sensor
 

IQ SensorNet NiCaVis® 700 Series IQ Sensors

Digital NiCaVis® UVVIS sensor for nitrate, COD, TOC, DOC, BOD, and SAC

 

YSI MultiLab Advanced BOD and pH Lab Kit
 

MultiLab Advanced BOD and pH Lab Kit, 626574

 

YSI MultiLab Advanced BOD Lab Kit
 

MultiLab Advanced BOD Lab Kit, 626571

 

YSI MultiLab BOD and pH Lab Kit
 

MultiLab BOD and pH Lab Kit, 626573

 

YSI OBOD Optical Dissolved Oxygen Sensor Cap for BOD Probe
 

OBOD Optical DO Sensor Cap

YSI OBOD replacement optical dissolved oxygen screw-on sensor cap for the BOD probe.

 

YSI MultiLab Line Optical BOD Probe
 

Optical BOD Probe, Self-Stirring, 626500

 

YSI ProOBOD Optical BOD Probe with ProODO in Lab
 

ProOBOD Self-Stirring Optical BOD Probe

The ProOBOD® self-stirring optical BOD probes are designed to fit into standard 300 mL BOD bottles with an international version also available for use with other tapers.

 

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YSI Optical, Luminescent BOD Technology Webinar
 

YSI Optical BOD Webinar - Introducing Optical BOD Technology


Archived Webinar:
YSI Optical BOD Webinar - Introducing Optical BOD Technology


Original Broadcast: October 21, 2010 —2:00 - 2:30 PM EDT


Join us to learn about optical BOD technology.  This webinar will focus on optical dissolved oxygen technology and the new ProOBOD probe from YSI.

If you conduct BODs, this webinar is for you!

 

 

 

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