Bod meter

Introduction

A BOD meter is an instrument used to measure the biochemical oxygen demand (BOD) of the water and the wastewater, which indicates the amount of the oxygen consumed by the microorganisms during the decomposition of the organic matter, and it is used in the environmental monitoring, the wastewater treatment, the water, and the many other applications. The BOD meter measures the BOD by the incubation of the sample in the BOD bottles with the dissolved oxygen measured at the beginning and at the end of the incubation period, typically five days, and the BOD is calculated from the difference, following the standard test methods, such as the standard methods for the examination of the water and the wastewater; the BOD meter consists of the BOD bottles, a dissolved oxygen measurement system, an incubator for the temperature control, and the accessories, and it provides the BOD value, expressed in milligrams per liter, with features such as the data logging; the BOD meter is used for the measurement of the BOD of the wastewater, the surface water, and the process water, for the monitoring of the organic pollution, for the assessment of the treatment efficiency, for the compliance with the regulations, and for many other applications, and it is an essential instrument for the BOD analysis. BOD meters are used in the environmental monitoring, in the wastewater treatment, in the laboratories, in the water industry, and for many other applications. With their BOD measurement, BOD meters are essential for the organic pollution monitoring.

BOD Meter LBOD-T2010

BOD Meter is a benchtop unit designed to automatically measure B.O.D. (biological oxygen demand) with 0 to 4000 mg/ L measurement range. Simple and safe mercury pressure difference measurem...

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Standards

ISO 5815-1-Water quality-Determination of biochemical oxygen demand after n days (BODn)-Dilution and seeding method

Complies with the above standards, but is not limited to them.

Features

1. BOD meter for measuring biochemical oxygen demand in water and wastewater samples.

2. Precision dissolved oxygen measurement with automatic temperature compensation.

3. Suitable for wastewater treatment, environmental monitoring and water quality laboratories.

4. Includes BOD bottles, dissolved oxygen probe, incubator and measurement system.

5. Supports 5-day BOD testing per standard methods for organic pollution assessment.

FAQ

Q1: What testing scenarios is this meter mainly applied to?

A: The BOD meter is used in wastewater treatment plants, environmental monitoring agencies, water quality laboratories, industrial effluent testing and research institutions to measure biochemical oxygen demand in water and wastewater samples, indicating the amount of biodegradable organic matter present. It supports wastewater treatment plant effluent monitoring, industrial discharge compliance testing, river and lake water quality assessment, sewage treatment process control, and organic pollution evaluation. The 5-day BOD test measures the oxygen consumed by microorganisms during biodegradation of organic matter, providing a standard indicator of water pollution and treatment efficiency. It is essential for wastewater treatment facilities, environmental agencies and industrial dischargers requiring BOD measurement for regulatory compliance, process optimization, pollution assessment and water quality monitoring, where organic load determination is critical for treatment plant operation, discharge permitting and environmental protection.

Q2: What standards does the meter comply with?

A: The BOD test follows ISO 5815 for water quality BOD determination, ASTM D888 for dissolved oxygen, EPA 40 CFR 136 methods, and relevant GB/T and HJ standards for water quality BOD analysis. The hardware complies with IEC 61010 laboratory safety standards. The BOD incubator should maintain 20 degrees Celsius per the standard. Calibration should use certified standards.

Q3: What is the warranty period for the whole machine and key components?

A: The meter and probe are covered by a 12-month warranty. BOD bottles, reagents and membranes are consumables excluded from warranty. Probe damage from improper storage or corrosive samples is also excluded. The incubator, if included, has its own warranty terms.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained water quality analysts familiar with BOD methodology and microbiological principles. We provide operation manuals, training and application support. Proper sample collection, dilution, seeding, incubation and DO measurement are critical for valid BOD results.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Dissolved oxygen probe calibration with saturated air or Winkler method recommended before each BOD test run. Full meter calibration every 6-12 months. Incubator temperature calibration and verification daily during BOD tests. Probe membrane and electrolyte replacement per manufacturer schedule.

Q7: Are supporting consumables universal?

A: BOD bottles, reagents, probe membranes and electrolytes are available from laboratory suppliers, though probe-specific parts should be verified. Long-term consumable and reagent cost is moderate depending on testing volume.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes probe type, measurement range, data logging, incubator capacity and software features. Additional BOD bottles and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the meter, probe and accessories with an operation manual. On-site installation, commissioning and training are not included for standard orders but can be arranged for water testing laboratory setup. Remote guidance is provided.

Q10: What types of samples are compatible with this equipment?

A: The meter measures BOD in water and wastewater samples including sewage, industrial effluent, river water and treated effluent within the measurement range. Highly toxic samples may inhibit microbial activity and require special handling or dilution. Samples with high dissolved oxygen demand require appropriate dilution. Users should follow proper sample collection and preservation (4 degrees Celsius, analysis within 48 hours), use appropriate dilution water and seed, maintain incubator at 20 degrees Celsius, calibrate the DO probe before use, and follow the standard BOD method including glucose-glutamic acid check for quality control.