Determining solids concentration during hydraulic solids transport

Although there exists a significant number of methods for measuring the solids concentration in mixtures that are being transported, many of these have not proved adequate in practice. At present, the radiometric method (Cs-137,Co-60) is most commonly applied. The statements made below indicate that it yields good results by considering numerous influencing parameters. Density measuring appears far less complicated provided the pressure losses in vertical pipe sections are made use of. However, this will require intense additional development work. (orig./HP)