Mobile Container System
Our mobile container system allows the ultrasonic treatment and digestion of sludge and biomass to be monitored under controlled conditions and the effectiveness of the ultrasound to be demonstrated using verified results.
Varying operating conditions make it difficult to reliably evaluate treatment processes.
This also applies to the process of anaerobic sludge stabilization at wastewater treatment plants and fermentation at biogas plants.
The mobile container system makes it possible to precisely determine the effects of ultrasonic treatment on the anaerobic degradation of sludge and biomass under controlled, practicable conditions.
The advantages of ultrasonic disintegration can thus be demonstrated in direct comparison to conventional digestion.
At biogas plants, the influence of varying substrate composition on biogas production can also be easily assessed.
Effect of Ultrasound
Ultrasound disintegrates the hard-to-reach bacterial biomass, making it more readily available for the subsequent degradation process.
The digestion process is intensified.
As a result, biogas production increases and the organic fraction of the digested sludge is reduced.
Equipment and Technical Setup
The system, installed in a 20-foot container, consists of five digesters, each with a capacity of 200 liters, which are thoroughly mixed using agitators.
The temperature is adjustable from 32 to 60°C. Gas flow is measured using five separate gas meters.
Our proven standard ultrasonic system is installed in the container for sludge treatment.
The high-performance ultrasonic system can be connected upstream of any number of digesters (typically up to five).
Operation is semi-continuous from the sludge storage tank.
During parallel operation of the digesters, various parameters can be adjusted:
the flow rate to be treated with ultrasound, the hydraulic retention time, and the ultrasonic energy input.
The system consists of the following components:
20-foot container (6.1 m x 2.4 m x 2.6 m)
5 digesters (200 L each, fully mixed)
1 Ultrawaves ultrasonic system (power consumption 5 kW)
1 feed pump (flow rate = 100–900 L/h)
1 storage tank
5 automatic, separate gas meters
Integration of the mobile container system
To integrate the container system, only connections for the sludge inlet and outlet, as well as for the rinse water, are required.
In addition, a 400V, 32A electrical connection is required.
Installation is carried out with the assistance of our service technicians.
We also support the operator in ensuring safe operation during the test.
The mobile container system is provided on a rental basis.
We generally set a three-month operating period for pilot tests on sludge digestion.
