Product Description

In the context of inputs analysis, here are the services offered by the CNETE to optimize your biogas plant.

 

Services offered

  • Quantification of the deposit that may be upgraded to biogas
  • Characterization of the deposit
  • Evaluation of the methanogenic potential of the different fractions of the deposit – BMP
  • Qualification of the different fractions of the deposit

 

Examples of CNETE equipment for inputs analysis

Biomethane potential (BMP) analysis system

Analyses des intrants

Specifications

  • 60 bottles available, in Borosilicate Duran® Schott glass
  • Liquid capacity ranging from 50 to 200 mL
  • Completely sealed, with robust aluminium septum and cap
  • Initial or continuous purge with anaerobic gas (N2 80% / CO2 20%)
  • Pressure carrying capacity up to 10 psi internal
  • Biogas analysis by GC-TCD (N2, O2, CO2, CH4) and FTIR (H2S)
  • Produced biogas pressure measured by digital manometer 0-3 or 0-15 psi

 

Examples of applications

  • Evaluation of organic inputs methanogenic potential, in Batch mode (~20 to 60 days)
  • Evaluation of the biodegradability of sludge or of complex samples
  • Monitoring the effect of chemical/physical/enzymatic treatments upstream of the biodigestion
  • Evaluation of the toxicity/inhibition of some inputs on the microorganisms
  • Optimization of revenues and ratio of inputs and co-inputs in a bioprocess
  • Validation and calibration of reaction mathematical models

 

Infors 5-litre bioreactors

CNETE - Infors 5-litre bioreactors for inputs analysis

Features

  • A 5-litre digester with autonomous programming for anaerobic digestion

 

Grinding mill

CNETE - Grinding mill for inputs analysis

Features

  • Input material size reduction and sample preparation

 

4 500-litre anaerobic digester

CNETE - 4 500-litre anaerobic digester for inputs analysis

 

Features

  • One 4 500-litre digester with an effective working volume of 4 000 L
  • One 1 500-litre pre-treatment / storage feed tank
  • Automated 24-hour, continuous digester feed programming
  • Agitation of the two tanks, connected to the automate, using a Netschz progressive cavity pump
  • Variable feed flow ranging from 50 L/min to 500 L/min
  • Fully watertight and made of stainless steel
  • Four-inch long inlet and outlet with pneumatic valves for digestate input and discharge
  • Double wall coil heating, ranging from 21°C to 70°C
  • Outlet to a flare off burner for gas disposal with flow measurement and gas collection for analysis
  • Biogas qualitative analysis (O2, N2, CO2, CH4, H2S) using a portable Sewerin Multitec 540 analyzer

 

Examples of applications

  • Pilot phase process development on a continuous basis (fed-batch)
  • Methane production mechanical parameter optimization (OLR, HRT)
  • Methane production physical-chemical parameter optimization (pH, T°C, etc.)
  • Long-term toxicity and inhibition tests relating to certain inputs / co-inputs
  • Assessment of pre-treated input biogas production (enzymatic/thermal/chemical)

 

300-litre anaerobic digesters (biomethanizer)

CNETE - 300-litre anaerobic digesters (biomethanizer) for inputs analysis

 

Features

  • Two 300-litre digesters with an effective working volume of 200 L
  • Two 300-litre pre-treatment / storage digester feed tanks
  • Automated 24-hour, continuous digester feed programming
  • Agitation of the four tanks, connected to the automate, using impeller pumps
  • Variable feed flow ranging from 5 L/min to 50 L/min
  • Fully watertight and made of stainless steel
  • Two-inch long inlet and outlet with valves for input and discharge of digestate
  • Outlet for gas collection in a Tedlar bag and septum for GC-TCD analysis
  • GCTCD biogas analysis (N2, O2, CO2, CH4) and FTIR (H2S)
  • Double wall coil heating, ranging from 21 °C to 60 °C
  • Possibility to test gas purification membranes at the exits of the two digesters

 

Examples of applications

  • Pre-pilot phase process development on a continuous basis (fed-batch)
  • Methane production mechanical parameter optimization (OLR, HRT)
  • Methane production physical-chemical parameter optimization (pH, T°C, etc.)
  • Long-term toxicity and inhibition tests relating to certain inputs / co-inputs
  • Assessment of biogas production using pre-treated inputs (enzymatic/thermal/chemical)

 

7-litre anaerobic digesters

CNETE - 7-litre anaerobic digesters for inputs analysis

Features

  • Six 7-litre digesters, with an effective working volume of 5 L
  • Mechanical blade agitation at a fixed speed of ~ 40 RPM
  • Fully watertight and made of stainless steel
  • Two-inch long inlet and outlet with valves for input and discharge
  • Outlet for gas collection in a Tedlar bag and septum for GC-TCD analysis
  • GCTCD biogas analysis (N2, O2, CO2, CH4) and FTIR (H2S)
  • Incubation in a temperature controlled or refrigerated bath ranging from 4 °C to 55 °C

 

Examples of applications

  • Maintenance of methanogen inoculum for the purpose of performing methane potential tests (BMP)
  • Continuous laboratory-scale process development (Fed-batch)
  • Methane production mechanical parameter optimization (OLR, HRT)
  • Methane production physical-chemical parameter optimization (pH, T°C, etc.)
  • Long-term toxicity and inhibition tests relating to certain inputs / co-inputs

 

In addition, through its extensive knowledge and expertise, the CNETE team has developed a software tool, Biometh i+, that functions as a decision-simulator for calculating the feeding stream of the digester and acts as a tutorial for decision making and conducting daily operations. This tool allows among others to calculate the mixture and the optimal dilution of inputs upon insertion in the process. In addition, this tool tags operations considering over 14 physical and chemical parameters simultaneously and makes recommendations in case of non-compliance levels of these parameters at the time of their determination.

→ Complete equipment list of the CNETE

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