BM-EVO2 Activated Sludge Breather

BM-EVO2 Activated Sludge Breather

This system can measure and monitor the biological processes in the sewage treatment process. By measuring and analyzing the oxygen consumption of different combinations of activated sludge, activated sludge+sewage samples, activated sludge+standard samples, and activated sludge+sewage samples+standard samples, it can quickly diagnose the levels of actual organic matter (F) and total microbial mass (M), normal load and overload, toxicity, biological activity, nitrification, SRT sludge age, and oxygen demand parameters.

The system automatically measures and calculates the following parameters and curves

Oxygen consumption rate OUR (mg O2/l · h);

●Relative to the oxygen consumption rate SOUR of MLVSS (mg O2/l · h)

●Dynamic Respiration Rate Rs (mg O2/l · h)

●Specific respiratory rate Rsp (mg O2/g · h) refers to the respiratory rate relative to MLVSS

● The most-High respiratory rate Rspmax

●Oxygen consumption OC or BODst (mg O2/l)

●COD can be biodegraded into bCOD (Biodegradable Fractions of COD), rapid biodegradation COD (i.e. rbCOD), and slow biodegradation COD (i.e. sbCOD).

Application of sewage treatment

The BM multifunctional activated sludge respiration measurement system expands the use of testing real activated sludge activity:

●In the process of experimental denitrification and denitrification, its anoxic and anaerobic properties can be detected.

●Refine the biodegradability of wastewater

Real time calculation displays the COD degradability parameter bCOD, which can be further divided into rbCOD and sbCOD

●Aeration demand saves energy

Optimization of AOR calculation and operational parameters to achieve energy optimization and conservation

●toxicity

Can calculate the actual biological activity inhibition rate of microorganisms in activated sludge

●Bioactive processability, supporting OECD 209 experiment

For a specific rate qH analysis, activated sludge can eliminate rbCOD at this rate

●Mobile Bed Biofilm Reactor (MBBR)

Application of scalable simulated moving bed biofilm reactor

●Aeration cycle control in sequencing batch reactor (SBR)

●F/M

The actual organic matter content (F) and total microbial biomass (M)

●SRT～MCRT

Quickly calculate the appropriate mud age and its relationship with F/M

●Biodegradability

Biodegradability of relatively activated sludge

●nitrification

Nitrification capacity and nitrification rate RN, AUR, qA, suitable dissolved oxygen range

●Nitrification toxicity

Potential toxicity during nitrification process

●Denitrification - rbCOD/N-NO3d

Calculate the actual dissolved carbon source rbCOD required for denitrification

●Biodynamic parameters

Biodynamic constants in various processing procedures

●Support for simulation software

Important parameters such as bCOD, rbCOD, sbCOD, AUR, Biokinetics

●nutrition

Starting from rbCOD, nitrogen and phosphorus concentrations, nutrient ratio optimization.

●Due to the openness of the system, it can support more simulation combinations

advantage

●Maintenance free dissolved oxygen probe for direct measurement of oxygen free radicals

●There was no oxygen limitation during the experiment

●A software system with similar instrument functions * to control equipment and analyze data

●Automatically update software online

●Experimental parameters can be modified during the experiment process

The system is open, and users can modify experimental settings and parameters as needed during the experiment; Only the BM breathing apparatus has this function among similar instruments.

●Automatically measure OUR, SOUR, bCOD, rbCOD, sbCOD, U (COD utilization rate) and q (specific U), etc

Among similar instruments, only the BM respiration meter can automatically measure the easily biodegradable COD (rbCOD), substrate utilization rate (U), and specific substrate utilization rate (q) simultaneously

●The final, maximum, minimum, and average data can be obtained at any time during the experiment

Only the BM breathing apparatus has this function among similar instruments

●Automatic temperature control system without water bath

●BM Advance has a pH measurement and control system

●Can replace various types of respirators

●Optional Mobile Bed Biofilm Reactor Special Components (MBBR)

Due to its special reactor, BM is the preferred choice for measuring MBBR or biofilm in the market

Main components of BM series

It consists of a host, a thermostat, software, and a computer. The host part includes an SBR reaction tank, a peristaltic pump, and an electronic control panel. The reaction tank consists of an upper aeration chamber (700ml) and a lower reaction chamber (300ml), with built-in maintenance free Hamilton oxygen sensors, pH sensors, double-layer agitators, air diffusers, etc.

Basic Parameters

There are three models available for this series of respirators: BM Advance, BM-T, and BM-EVOBM-Advance Pro 型;

BM-Advance 型：

● Optional standard BM Advanced and BM Advanced 2

●Three operating modes: R Dynamic mode, OUR Static mode, OUR Cyclic mode

●Temperature control and display

●Different breathing programs can be compared together

●Calculate within the range of optional parameters and charts

●Scaling can be performed on the chart

●Automatically generate BM software files and EXCEL files

●Can set data collection speed

●An open analysis process allows operators to simultaneously add other substances to observe the effect of the mixture's respiratory rate

●Short term and long-term testing

●Parameters in dynamic state

●Can set sample and sludge volume

● Extremely highsensitivity

●Calculate the results through interpolation method

●Parameters in static state

●OUR and SOUR calculations at different levels of dissolved oxygen

●Continuous OUR and SOUR calculation

●Dynamically calculate OUR continuously throughout the entire time period

●Parameters in loop mode

●DO can be set to set a set point

●No time limit in breath testing

●BM-Advance2 can test two samples simultaneously

BM-T type:

Except for the lack of pH measurement function, automatic temperature control requiring self configuration, and different instrument sizes, all other parameters are the same; Two portable stands can be optionally equipped, one is a portable host, and the other is a portable temperature control, which is convenient for carrying. The instrument bracket is made of sturdy aluminum and has shock-absorbing function inside. Instrument bracket size: 38x37x52 cm (length x width x height), weight: 3KG.

●Instrument size: 33 * 34 * 36 cm

●Weight: 15 KG

BM-EVO type

Except for not having pH measurement function, all other parameters are the same. Picture is the same as BM Advanced type

instrument parameters

●Optional standard BM-EVO and BM-EVO2

●Analyzer type: Closed Batch Circulation

●Breathing rate range: 0 to infinity

●CO and bCOD range: 10-30000 mg/L

●Oxygen sensor response time:<60 seconds

●Measurement in actual software: The oxygen sensor signal is transmitted to the PC through 4-20 mA, and the reaction time for oxygen measurement in the software can be set from 1 second to infinity.

●Oxygen sensor calibration: air

●PH experiment measurement throughout the entire process

●PH digital control output

●Automatic temperature control: 10-50 ℃

●Measurement system calibration: chemical substances (sub *)

●Respiratory rate repeatability:+/-10.0% (under the same conditions)

●Respiratory rate accuracy: ± 8.0%

●CO(BODst), bCOD 精度： ± 5 %

●Rs, OUR, CO (BODst), bCODzui small reaction time: 1 second

●Data input: computer keyboard

●System: Windows 2000, XT, NT, Vista

●File types: BMR (BM) and XML (Excel), compatible with Windows

●Security file generation: automatic

●Personal file generation: BM software storage

●File output: via regular window or IE

●Power supply: 230 VA -50/60 Hz

●Power: 800W

●Instrument size: 50 x 40 x 46 cm (width x length x height)

●Weight: 15KG

●BM-EVO2 can test two samples simultaneously

BM-Advance Pro 型

In addition to all the functions of BM Advance, BM Advance Pro has the following advantages due to the addition of ORP probes and corresponding software:

When lacking substrate, microorganisms will lose their biological activity and enter the endogenous respiration stage. Like respiratory rate, redox potential is crucial for determining whether microorganisms are poisoned.

●Some sewage treatment plants control the aeration system by setting the oxidation-reduction potential and dissolved oxygen values. If the DO value is within the set range, the ORP is also within the corresponding range.

●Some sewage treatment plants use ORP alone to control the aeration system. During the nitrification process, controlling aeration to keep ORP within a certain range ensures the maximum nitrification rate can be achieved.

●Setting different conditions (temperature, pH, DO) can control the simultaneous or subsequent nitrification and degradation of BOD. In cycling mode, it is possible to determine whether nitrification has begun by monitoring ORP.

●Denitrification is an anaerobic process. So by setting the required conditions for denitrification in the reactor, the removal rate of nitrate and denitrification rate can be analyzed

●ORP is a suitable parameter for analyzing biological activity in anaerobic processes.