CSTR Bioreactor Module

Benchtop bioreactor and frame

• Borosilicate glass laboratory bioreactor with a spherical bottom;
• 1,500 mL working capacity;
• Measurement and control module;
• 304 stainless steel benchtop.

304 stainless steel lid

• Central connector for mechanical impeller;
• Four ports for internal sensors;
• Connections for acid and base, gas sensors, and up to three chemical reagents;
• Sealing ring;
• Tri-Clamp-type quick-release 304 stainless steel fastener.

Internal sensors

PT100 temperature sensor and dissolved oxygen sensor. The four ports can be configured for a pH electrode, temperature sensor, level sensor, density and viscosity sensor, O2 electrode, diffuser stone, and gas inlet.

In-line sensors

CO2 sensor, methane sensor, pH sensor, density and viscosity sensor, ultrasonic level sensor, ammonia sensor, hydrogen sensor, pressure sensor, and two gas flow sensors.

Shaft-driven agitation

• 304 stainless steel shaft with Viton seal;
• Mechanical drive by stepper motor;
• Speed control and logging via computer;
• Mounted on the lid;
• Three shaft types with propeller/disperser impellers: Rushton, Naval, or Marine;
• Adjustable height.

Aeration

• Built-in oil-free compressor with microbiological filter or auxiliary inlets at the rear of the console;
• Gas dissolution through a stainless steel microporous diffuser stone;
• Flow rate adjusted using a manual rotameter.

Temperature-controlled bath

• 10-liter reservoir;
• Temperature range from −10 °C to 100 °C;
• Adjustable hysteresis from 0.1 to 5 °C;
• 0.1 °C resolution;
• ON/OFF or PID control, digital readout, and PT100 sensor;
• Quiet magnetic pump for internal and external recirculation;
• Flow rate of 19 liters/min;
• Outlet and return nozzles for external circulation.

Cooling and heating

Cooling system with 1/4 HP output and heating by a 2000 W 304 stainless steel electrical heating element.

Interface

• Fixed 10-inch touchscreen interface;
• Automation and communication with all sensors;
• Wi-Fi connectivity for remote monitoring;
• USB ports;
• RS 485 ports.

Dosing and integration

• Five peristaltic pumps for adding or extracting liquids;
• Five autoclavable glass bottles;
• Connections and tubing;
• Integration of internal and in-line sensors;
• Analog pressure gauge;
• Gas sensor line.