For example, here is one of the research topics carried out by the company

Optimization of the treatment of sludge at sewage treatment plants :
The objective of this study is to monitor and optimize wastewater treatment in the purification phase.

AVNIR Engineering's research program objectives

The objective of this program is to install a demonstrator hydrometer/viscosity sounding rod in a wastewater treatment plant to optimize the process of wastewater treatment.

The main difficulties are related to validating the method of simultaneous measurement in the context of sewage sludge.

Figure 1 : Validation of the theoretical principles	Density and viscosity for water
Figure 2 : Transformation of a solid-gel pasteurized liquid	Figure 3 : Visco-Densimètre AVN702

Indeed, the first validated measurements showed the capacity of these methods on base fluids.