Monitoring the parameters of impurity particles in aqueous solutions in industrial wastewater treatment systems

Summary

One way to control wastewater quality is determining the parameters of impurity particles in recycling water supply systems with the help of laser Doppler interferometers. Photodetectors of laser Doppler interferometry optical systems use prismatic quantum dots for contactless measurement of impurity particle parameters in wastewater from local treatment facilities to monitor the quality of industrial wastewater treatment. Simulation of prismatic hexagonal rectangular quantum dots with a shell, their energy spectrum, and its dependence on the quantum dot parameters are considered. Possible using a quantum dot-based receiver in water treatment quality control systems is also analyzed. An optical system for express-monitoring of impurity parameters in wastewater has been developed. Mathematical computer simulation of the numerical solution of the Schrödinger equation for the S-state of the wave function and the determination of energy eigenvalues, as well as boundary conditions for the core-shell system, was used. The wave function and energy eigenvalues for prismatic hexagonal quantum dots were obtained, and the possibility of their use in photodetectors of optical laser interferometry systems was considered. The experimental laser measuring setup contains a photodetector where prismatic quantum dots are used to provide for the receiver selectivity for the wavelength of a helium-neon laser and for increasing the accuracy and range of real-time measurements.

Key words

wastewater , water treatment , aqueous solution , impurity particles , particle parameters , Schrödinger equations , S-electrons , quantum dots , energy spectrum , photomultiplier