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Nijhuis Saur Industries

Your challenges

ByoPast Pasteurization system

Pasteurisation for high viscosity, high dry matter products.

The ByoPast® solution can handle highly polluted waste streams. Due to the modular tube-in-tube heat exchanger and robust engineering of the vessels and piping, high viscosity and high dry matter will be processed with high reliability and availability.

Low availability of heat

The ByoPast® requires a low heat consumption due to the recuperator up to 90%, combined with a 24/7 autonomous operation.

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The process

Digestate is pumped via a heating step (tube-in-tube) to pasteurization vessels at a temperature of >70 °C. The digestate is kept inside the reactors for a minimum of one hour. Within this hour, the reactors are continuously being filled, standing still (is pasteurizing) and being emptied in an alternating method to ensure a continuous flow. The reactors are stirred with an agitator and the temperature is monitored at 3 different positions inside each vessel to ensure a pasteurization temperature of >70 °C throughout the entire batch. Failed batches are prevented by a smart pre-heating process. Due to the built-in failed batch technology, the ByoPast® guarantees to discharge only the succesfully pasteurized batches.

Our positive impact

ByoPast Pasteurization system

Cost competitive solution

The ByoPast® systems are designed for large throughputs and continuous 24/7 operation. Standardized system for 10-20-30 and 60 m3/h. Cost competitive from 20 m3/h and up.

Small footprint

Pumps and control system and heat exchanger are mounted inside an insulated 40 ft container. With pasteurization reactors to the side requiring minimal ground space.

Robust, compact, reliable

Complete with advanced control system, compatible with overall plant control/SCADA systems and  ‘plug and play’ for quick erection, reliable operation and 24/7 monitoring.

Energy efficient system

By continuous heat consumption and heat recovery (up to 90%, depending on the viscosity) combination with other heat consumers is simple and leading to large savings.

Log files

To prove compliance with EU-reg. 1069/2009 or BSI PAS 110 and that all batches have successfully passed pasteurization, the data logs are stored and available in the SCADA system of the ByoPast® to be exchanged with the authorities.

Key figures

10-60 m³/h
modular systems
>90%
heat recovery

Contact our experts

Contact our experts

Frequently asked questions (FAQ)

Can you combine a ByoPast® system with ABP feedstock?

The ByoPast® system can be combined with a feed bunker, conveying systems and macerators that we purchase from 3rd party vendors. We can offer a complete solution or only a pasteurization system.

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