Water quality monitoring system of Online BOD Analyzer – HABS-2000


The Online Microbial Fuel Cell (MFC)-type BOD Analyzer, HABS-2000, is continuous and automatic BOD measuring equipment that uses MFC, which is the first source technology in the world. Because HABS-2000 uses microbes from the field, it has outstanding field applicability, and it has less clogging due to the use of a large tubes. It is also economical and easy to maintain because there are no consumables that must be periodically replaced.



Microbial Fuel Cell (MFC) type sensor

Reduced measuring time

High field applicability

Easy maintenance

Economical maintenance expenses

Status information display


HABS-2000 can measure Biochemical Oxygen Demand (BOD) by using MFC. The MFC that is applied in HABS-2000 uses organisms or a part of them to convert the reducing power that is generated by organisms’ energy metabolism into electrical energy. Because the amount of electrical signal that is generated from MFC increases in proportion to the concentration of organic matter contained in the measuring sample, the equipment converts this to BOD concentration for measurement.


    • Measurement item

Biochemical Oxygen Demand (BOD)

    • Measurement method

Microbial fuel cell (MFC) using electrochemically active bacteria(EAB)

    • Measurement principle

Conversion of electrical signal generated by decomposing organics by bacteria to BOD concentration

    • Measurement range

0~200mg/L (Adjustable)

    • Measurement interval

10 minutes (Adjustable)

    • Accuracy

±5% F.S.

    • Reproducibility

±5% F.S.

    • Linearity

±5% F.S.

    • Zero/Span drift

±5% F.S.

    • Operation system

Windows 7 (CPU process) or more

    • Output

TCP/IP, DC 4~20mA, RS-232C

    • Status display

Normal operation, on calibration, error

    • Display

Color LCD 10.4″ (Touch screen)

    • Power

AC 220V, 50/60Hz

    • Power consumption

Average 110W (Maximum 180W)

    • Voltage regulation

3% or less

    • Data storage capacity

HDD 100G or more

    • Data output

USB terminal

    • Enclosure / Size

Steel, IP55 / 600(W) x 662(D) x 1700(H) mm

    • Automatic thermostat

Thermoelectric element type

    • Operating humidity

RH 95% or less


Application Field

Surface water monitoring

    • River, lake, river water quality
    • Waterworks facilities (intake station and Water plant, etc.)

Water quality TMS

    • Sewage treatment plant, Wastewater treatment plant
    • Wastewater discharging facility, Rural sewage treatment facility, etc.

Process control, etc.

    • STP process management,
    • IWWTP process management, etc.