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Continuous neutralization

Continuous Effluent Management: Precise pH Regulation

Actini Group offers continuous neutralization solutions tailored to the needs of laboratories, industries, and facilities handling chemical or biological effluents. These systems monitor and adjust the pH of liquids in real time, ensuring safe discharge compliant with environmental and regulatory standards.

Model: Continuous Neutralization (CNS)
Capacity: 1,000 to 16,000 liters per day and above

Continuous neutralization by Actini Group

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What is continuous neutralization?

Continuous neutralization maintains the pH of industrial or laboratory effluents at a constant level, ensuring compliance with environmental standards before discharge or further treatment. Unlike batch neutralization, a continuous system adjusts the pH in real time using sensors and automatic controllers, maintaining consistent efficiency even when effluent composition changes.

This process is particularly suitable for acidic or basic wastewater from CIP processes, washings, or other production operations. By optimizing the dosing of neutralizing agents and minimizing pH fluctuations, continuous neutralization enhances facility safety, protects the environment, and improves the overall performance of effluent treatment.

The efficient & automated solution for effluent neutralization

ACTINI Continuous Neutralization Systems (CNS) are specifically designed to adjust the pH of effluents from continuous decontaminators, such as the ULTIMATE, ULTIMATE PLUS, and FDS models. They can also treat other wastewater from processes like CIP discharges, washing, or any acidic or basic effluent. This versatility enables more comprehensive effluent management.

These standardized and optimized units provide high neutralization capacity while remaining compact, allowing easy integration into limited spaces.

CNS Models

MODELS

AVERAGE HOURLY FLOW*

MAXIMUM HOURLY FLOW**

VOLUME NEUTRA TANK

VOLUME TANK VALIDATION

LENGTH (mm)

WIDTH (mm)

HEIGHT (mm)
CNS-1000 1.000 liters 1.500 liters 1.000 liters 115 liters 2.250 1.190 1.870
CNS-3000 3.000 litres 5.000 liters 2.850 liters 310 liters 2.945 1.670 2.340
CNS-6000 6.000 litres 10.000 liters 6.350 liters 810 liters 3.690 2.200 2.815
CNS-9000 9.000 litres 12.000 liters 8.200 liters 1.000 liters 4.040 2.450 2.755
CNS- 12000 12.000 litres 18.000 liters 10.000 liters 1.320 liters 4.465 2.685 2.890

*Average flow in 60 minutes

** Peak flow in less than 10 minutes

Product highlights

Fonctions

Main functions: • Caustic and acid injection • Buffer tank" function • Dilute, mix and adjust pH to correct value

Composition

• Polyethylene neutralization tank • Polyethylene control tank • Pumping skid with high-flow centrifugal pump • Control cabinet

Operation

  • Fully automatic operation

  • Automatic injection of acid and caustic soda is used to neutralize the effluent pH.

  • The neutralization tank acts as a “buffer tank,” smoothing pH variations caused by acidic or caustic effluents entering the system.

  • The tank volume ensures a sufficient contact time of 30 minutes for the neutralization reaction, preventing any residual reaction after pH control.

  • pH adjustment in the tank is automatically managed by the pH probe located in the recirculation loop, which controls the acid and caustic injection pump.

  • The mixing pump ensures thorough agitation of the tank. Its hourly flow rate, more than 5 times the tank volume, allows optimal dilution and mixing of the injected concentrated chemical solutions.

  • The control tank is used to take a sample from the neutralization tank to validate the pH value and allow tank discharge.

  • If the pH is within the correct range, the effluents are discharged. If not, the effluent volume is returned to the neutralization tank for a second treatment.

Available Options

The systems can be equipped with two-phase neutralization, allowing treatment of effluents with an inlet pH from 0 to 14 and achieving a precise outlet pH between 6.5 and 8. For effluents with temperatures above 60 °C, a plate heat exchanger can be integrated.

This ensures safe and effective treatment. An inlet allows direct connection to the client’s wastewater, facilitating integration into existing facilities.

The equipment includes a dedicated electrical cabinet with a human-machine interface (HMI) for simplified control. It also features separate tanks for the chemical solutions used in the process.

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Continuous Neutralization - Model CNS

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