Monitoring dry solids content to control digesters

The gas produced by a digester is strongly dependent on the composition of the organic material (biomass) and its dry substance (DS) content: Isatec offers a new method for monitoring DS content

In times of global warming and ever increasing oil prices, the environmental and economical benefits of biogas and other renewable energy sources are becoming more and more important.

The digestion of the organic material to produce biogas involves many different species of naturally occurring bacteria, all doing a different job at a different step in the digestion process.

Maintaining suitable conditions in the digester is essential for maintaining a healthy bacterial population, and is an important task for the control unit.

The amount and quality of the gas produced is strongly dependent on the composition of the organic material (biomass) and its dry substance (DS) content.

In the past, monitoring the dry substance content has been achieved by complicated, time consuming offline methods.

HF Sensors now offers a microwave based solution, designed specifically for use in biogas plants: this is now available from Isatec.

The new microwave based DS sensor series MWTS PP can monitor the dry substance content online reliably and practically free of maintenance in fermenters or tubes, and is available in different configurations for different mounting options.

Each instrument is based on an intelligent microwave sensor with an integrated micro controller and can perform non-contact measurement of dry substance content in the range 0 to 20%.

For further information please use the Processingtalk Reader Enquiry service.

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