SURCIS - Model BM Series -Advanced Multi-Purpose Respirometers System

• PC and software included in the system
• Compact analyzer, with very low maintenance and user friendly operation
• Direct oxygen measurements from a maintenance-free oxygen sensor
• Double reactor in models BM-EVO2 and BM-Advance2
• No oxygenation restriction during test performance
• Full control and results by means a powerful software already loaded in the PC of the system
• Automatic software update versions from internet
• Capacity for test conditions setting and modify them throughout the test performance.
• Automatic measurements: OUR, SOUR, bCOD, rbCOD, sbCOD, U (COD utilization rate) and q (specific U)
• Last, minimum, maximum and moving average results throughout any moment of the test
• Several results at any time during the test and see them simultaneously on tabular or graphic modes
• Option to open several stored tests and compare their results
• Automatic temperature control in the analyzers EVO, EVO2 & Advance, Advance2, and out of the analyzer in BM-T+
• pH monitoring and automatic control system in the BM-Advance and BM-Advance2
• ORP monitoring in the BM-Advance Pro
• Results package at any moment during test performance
• Capacity for different respirograms and simultaneous overlying
• BM respirometers measure data that can be directly input into modeling – simulating software
• Option for a special reactor assembly for moving beds bio-films (MBBR) and/or granular biomass

Our static
From a mixed-liquor of the aeration tank it is determined the OUR & SOUR within the time and section we have selected in the corresponding respirogram.

• OUR (mg/l.h): Total oxygen uptake rate from mixed-liquor.
• SOUR (mg/g.h): Specific OUR

On this mode, the analyzer performs a respirogram within a programmed DO threshold and determines the corresponding OUR & SOUR in base of a continuous sequentially measurements.

On this mode, the analyzer performs a respirogram within a programmed DO threshold and determines the corresponding OUR & SOUR in base of a continuous sequentially measurements.

A DO base line is fixed from an endogenous respiration activated sludge and then added a certain amount of sample to be analyzed. In the respirogram, continuous measurements of Rs are showed permitting the simultaneous and continuous determination of CO and bCOD. In this way we can track the values evolution along the time as an actual window of the substrate oxidation from activated sludge.

• Rs (mg/l.h): Exogenous respiration rate corresponding to the substrate oxidation.
• Rsp (mg/g.h): Specific Rs.
• CO (mg/l): Consumed oxygen accumulated in the substrate oxidation
• bCOD (mg/l): Biodegradable fraction of total COD (bCOD) or Readily biodegradable fraction of COD (rbCOD)
• U (mg COD/l.h): Substrate utilization rate
• q (COD/SS.d): Specific substrate utilization rate
• pH: (only in BM-Advance, Advance2 and Advance Pro)
• ORP (mV): (only in BM-Advance Pro

Oxygen requirement and energy optimization

• Actual oxygen requirement (AOR) can be determined for any specific process.
• Optimal and minimum DO level in the aeration tank, without any detriment of the process efficiency.

Bioaugmentation control and tracking

• By means the regular respiration rate measurement we can asses the result of the augmentation effect, to know if it is necessary to increase the dose of biomass and when it has reached its maximum effect.

COD fractionation

• Automatic calculation of the COD biodegradable fraction (bCOD) or COD readily biodegradable (rbCOD)

BODS estimation

• The software has the option to automatically estimate the BOD5 when the system is calibrated with three BOD standards and their corresponding consumed oxygen parameters (CO) measured in the respirometer.

Influence of the temperature, pH and oxygen and other conditions

• Thanks to the capacity to set and modify the test conditions, we can analyze the influence of any of them (or any combination) in the biomass activity and figure out break-points, optimum and minimum working levels.

Operative parameter optimization

• Loading rate (F/M), Sludge age (SRT) y Returned sludge rate (RR)

Nitrification

• Nitrification rate  (AUR), Specific nitrification rate (SAUR, qN), optimal DO range for nitrification. Necessary hydraulic time for ammonium-nitrogen removal. Nitrification capacity, minimum sludge age for nitrification (SRTn)

Denitrification

• Calculation of the rbCOD that is actually needed for the denitrification process.
• NUR estimation can be calculated from the consumed oxygen uptake rate of the corresponding rbCOD.
• In model BM-Advance Pro, together with the pH, we can analyze the ORP evolution during denitrification.

Anoxic - Anaerobic process

• In model BM-Advance Pro, together with the pH, we can analyze the ORP evolution during denitrification.

Toxicity referred to one specific biomass

• Fast screening qualitative test and by means of comparison of the actual respiration rates of one mixed-liquor prepared with the sample and another from one standard compound as reference.

Kinetic parameters

• Kinetic parameters calculation for heterotrophic and autotrophic biomass.

Support for simulation programs

• Such as GPS-X, BioWin,...

Many others

• BM respirometers are open systems and, as such, support all kinds of combinations to step into an endless number of applications.

BM-respirometers can be easily adapted to biomass carriers, and run any respirometry test by means the simple installation of a special reactor provided with a special cage vessel where the carriers are contained.