Control of Sludge Treatment and Use of Biogas

One of the objectives of sludge treatment is to reduce the amounts of solids to be eliminated, as these represent a considerable cost factor for waste water treatment plant operators. This process includes dehydration optimization and recovery of biogas through its digestion.

A significant amount of foam may build up at the digester at any time. We have a solution for the detection and mitigation of foam through radar technology.

The production of biogas and the methane content are the first indicators regarding the status of the anaerobic process. The measurement conditions for wet biogas just after exiting the digester have represented an important challenge. The use of Prosonic Flow B 200 ultrasonic gauges offers a reliable measurement of biogas flow and content of methane.

Sludge conditioning using lime milk or polymers before dehydration is key to obtain good results in the dehydration process and to extend the service life of the filters as much as possible. When the conditioning agent dosage varies according to the solid matter content, not only can the dehydration process results become optimized, but the consumption of chemical products as well.

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