Topic “BOD”
Biochemical oxygen demand or BOD is a chemical procedure for determining the uptake rate of dissolved oxygen by the biological organisms in a body of water. It is not a precise quantitative test, although it is widely used as an indication of the quality of water.
Most pristine rivers will have a 5-day carbonaceous BOD below 1 mg/L. Moderately polluted rivers may have a BOD value in the range of 2 to 8 mg/L. Municipal sewage that is efficiently treated by a three-stage process would have a value of about 20 mg/L or less. Untreated sewage varies, but averages around 600 mg/L in Europe and as low as 200 mg/L in the U.S., or where there is severe groundwater or surface water infiltration. (The generally lower values in the U.S. derive from the much greater water use per capita than in other parts of the world.)
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.
YSI ProODO Optical Dissolved Oxygen for your BOD bottles
The ProOBOD is designed for use with the YSI ProODO instrument. Optical, luminescent technology eliminates the probe warm-up period and membrane changes.
YSI 5100 Lab Dissolved Oxygen
Microprocessor-based, the YSI 5100 will store 100 sets of data with RS-232 interface for direct link to your computer. Both models are user upgradeable through the YSI web site, making it easy to take advantage of future software improvements. The YSI 5100 features a built-in barometer, programmable auto-stabilization, membrane integrity function, bar code compatibility, and real-time clock. The full-featured 5100 instrument offers even greater performance and flexibility with one-button auto calibration and built-in SOUR software to meet U.S. EPA 503 regulations for safe use of biosolids. OUR (Oxygen Uptake Rate) and SOUR (Specific Oxygen Uptake Rate) are also valuable process control tools because they indicate the biological activity of microorganisms used in treatment.
YSI 5100 features auto-calibration, large, graphic displays and low keypad profiles for maximum efficiency.
The YSI Model 5100 has all of the same functionality of the Model 5000 and much more.
YSI 5000 Lab Dissolved Oxygen
Microprocessor-based, the YSI 5000 will store 100 sets of data with RS-232 interface for direct link to your computer. Both models are user upgradeable through the YSI web site, making it easy to take advantage of future software improvements. The YSI 5100 features a built-in barometer, programmable auto-stabilization, membrane integrity function, bar code compatibility, and real-time clock. The full-featured 5100 instrument offers even greater performance and flexibility with one-button auto calibration and built-in SOUR software to meet U.S. EPA 503 regulations for safe use of biosolids. OUR (Oxygen Uptake Rate) and SOUR (Specific Oxygen Uptake Rate) are also valuable process control tools because they indicate the biological activity of microorganisms used in treatment.
YSI 5000 features auto-calibration, large, graphic displays and low keypad profiles for maximum efficiency.
The Model 5000 is a microprocessor based, menu-driven, dissolved oxygen meter designed to perform laboratory measurement of dissolved oxygen and Biochemical Oxygen Demand (BOD).
DO200 Handheld Dissolved Oxygen Meter
The DO200 is part of the EcoSense® family of products. The DO200 dissolved oxygen meter offers fast dissolved oxygen response times in wastewater, surface water, and aquaculture applications. Calibrates easily in a saturated air environment and displays in % or ppm (mg/L) values, giving you the best DO data quality possible. Available with 4- or 10-meter cable lengths. The DO200 can also be used in the laboratory with the 200-BOD self-stirring lab probe making the DO200 a true lab and field instrument. Screw on PE membranes make membrane changes easier than ever. The PE membranes also have faster response times and reduce stirring dependence greatly.
DO200 Dissolved Oxygen/Temperature Accurate, economical, handheld measurements
YSI’s EcoSense® line of compact, handheld instruments provides the most accurate data in the most affordable format.
ProODO Handheld Optical Dissolved Oxygen Meter
The new ProODO provides traditional YSI quality in a handheld dissolved oxygen instrument with luminescent optical dissolved oxygen (DO) technology. The ProODO utilizes “smart” digital sensor technology which stores calibration data within the sensor. This allows probes to be placed on any ProODO instrument without re-calibration. YSI ODO technology reduces the time required calibrating and maintaining sensors while utilizing a user replaceable sensing element that requires approximately an annual replacement. There are no electrodes to clean or solutions to change. Based on usage, calibrations can be stable for up to one year and are stored in each sensor.
Digital Professional Series Handheld Luminescent Dissolved Oxygen Meter
The YSI ProODO handheld DO meter provides extreme durability for the measurement of optical, luminescent based dissolved oxygen for any field application.
Field Worthy
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. User-replaceable sensors and cables and convenient One Touch Cal feature makes it extremely user friendly. Mil-spec (military spec) connectors, IP-67 waterproof and rubber over molded case, and 1-meter drop tests ensure the instrument remains in your hands to provide years of sampling even in the harshest field conditions. The feature set of the Pro20 results in a low total cost of ownership over the life of the product.
YSI Pro20 Handheld Dissolved Oxygen Meter
• 50 data set memory
• One Touch Cal
• 2-year cable warranty
• Multiple languages
• User replaceable sensors and cables
OxiTop® Control
OxiTop® Control Biological Oxygen Demand (BOD) Instrumentation is an advanced version of the successful OxiTop® BOD Instrumentation system that uses software-controlled functions and an infrared interface to communicate with a handy controller, the OC 100. This BOD instrumentation system enables the simultaneous and grouped start, management, storage and tracking of 100 BOD measuring heads via the controller and allows them to be tracked on a large display with graphic evaluation. BOD measurement data can be transferred to the PC for evaluation and documentation via the AK-540/B cable (order no. 902842) and the communication program Achat OC (order no. 208990).
OxiTop BOD Measurement Instrumentation
The Biological Oxygen Demand (BOD) data can be called up at any time, even during sampling, thus enabling checking of the samples for errors.
OxiTop IS 6, IS 12
Measurement using OxiTop® Biological Oxygen Demand (BOD) Instrumentation is based on pressure measurement in a closed system: microorganisms in the sample consume the oxygen and form CO2. This is absorbed by NaOH, creating a vacuum, which can be read directly as a measured value in mg/l BOD.
The sample volume being tested regulates the amount of oxygen available for a complete BOD measurement. BOD measurement ranges of up to 4,000 mg/l can be measured using different sample volumes.
CyberScan DO 6000 Dissolved Oxygen Meter
The CyberScan DO 6000 is powerful yet easy to use with its touchscreen simplicity and versatility. Simply enter seed value along with other relevant BOD data, and let your DO 6000 do the rest. With on-screen prompts and self-stirring probe, analysis with BOD, SOUR and OUR methods are a breeze. Correction of temperature, salinity and barometric pressure is automatic, giving you unparallel accuracy over a large measurement range.
DO6000 Measures Dissolved Oxygen / BOD (OUR, SOUR) / Temperature
• Automatic five-day BOD testing with sample ID with self-stirring probe that complies with EPA method requirements
• Wide DO measurement range from 0 to 60 mg/L and 0 to 600 % saturation
CyberScan PCD 6500 Multiparameter
Top-of-the-line, research-grade CyberScan PCD 6500 touchscreen meter measures and displays up to four channels at one time. With 10 measurement parameters to choose from, the PCD 6500 is engineered with advanced design that prevents cross-talk or other interference. Plus, automatic five-day BOD testing capability with sample identity, as well as extensive communications features that allow you to send your data to any computer in the world via internet – directly from the meter!
PCD6500 Measures pH / pH FET / ORP / Ion / Conductivity / TDS / Salinity / Resistivity / Dissolved Oxygen / BOD (OUR, SOUR) / Temperature
• Measure and view up four channels at the same time with no cross channel interference
• Wide pH and mV measurement ranges
• Pre-programmed ISE-type selection
DO 1500 Dissolved Oxygen Bench Meter
Eutech’s CyberScan DO 1500 is designed for optimal performance and versatility, while preserving Eutech’s signature user-friendly qualities. Self-diagnostic, intuitive with advance set-up options for user-customisation, the CyberScan DO 1500 features BOD testing capabilities and comes with bi-directional RS232 interface for seamless data transfer to your computer or printer.
DO1500 Dissolved Oxygen Bench Meter
This meter is designed to provide all the information necessary to guide the user through the process of measuring dissolved oxygen with a series of prompts on the screen.
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