Examination of activated sludge for microorganisms

Examination of activated sludge for microorganisms

There are hygienic risks in the agricultural utilization of sewage sludge due to the uptake of infectious agents in cultivated plants. It is therefore very important to examine the so-called activated sludge for E-Coli bacteria, salmonella and other pathogens that cause disease. A phase contrast microscope is used for this, with which the structures can be displayed very well. The result of this investigation shows whether the diversity of the microorganisms allows the sewage sludge to be applied to agricultural land. This process means soil protection and health prevention for the population

In sewage treatment plants, the activated sludge is examined for E. coli bacteria, salmonella and other pathogens. The structures can be precisely visualized using a phase contrast microscope. The result of this study shows whether the diversity of microorganisms allows sewage sludge to be spread on agricultural land. This is necessary to avoid health risks and protect the soil.