Solid-liquid two-phase separation device and method by magnetic fluids and photocatalysis

Abstract

The invention discloses a solid-liquid two-phase separation device and method by magnetic fluids and photocatalysis. A magnetic induction coil is arranged on the outer wall of a pipe along the flowingdirection of liquid in a pipe cavity; the rear end of the pipe is transparent, and an illuminator vertically irradiating the pipe is arranged at the top of the pipe; the tail end of the pipe is vertically connected with a conical filter screen. TiO2 / PANI / Fe3O4 water-based magnetic fluids and alkaline printing and dyeing wastewater are sufficiently and uniformly stirred by turbolators and then inputted from an inlet end; current with different strength passes a regulating coil to control magnetic field intensity in the pipe; an ultrasonic flow meter can acquire the concentration of catalyst particles, and a grating spectrometer can calculate photons and distribution; a conical filter screen collects solid residues. Solid-liquid two-phase separation is performed on the wastewater by the aidof the magnetic fluids, ultrasonic waves and a grating, photocatalytic degradation reaction is finished, and degradation reaction effects can be acquired by detecting the pH (potential of hydrogen) value of the printing and dyeing wastewater. The device is compact in structure, convenient to operate, green and high in practicability, solar energy can be used, and energy is saved.

Description

technical field [0001] The invention relates to a solid-liquid two-phase separation device, in particular to a solid-liquid two-phase separation device and method using magnetic fluid and photocatalysis, and belongs to the technical fields of solar energy utilization technology and printing and dyeing wastewater treatment. Background technique [0002] The textile industry is one of the oldest industries in my country's national industries. [0003] In the production process of the textile industry, a large amount of wastewater will be produced, among which the pollution of printing and dyeing wastewater is the most serious. Textile printing and dyeing wastewater has the characteristics of large discharge, high content of organic pollutants, high alkalinity, and complex changes in water quality. It is recognized as one of the difficult-to-treat wastewater and has attracted widespread attention in the world today. [0004] The commonly used methods for treating printing and ...

AI Technical Summary

Problems solved by technology

The commonly used separation method in physicochemical method has the advantages of simple equipment, easy operation and mature process, but this kind of treatment method usually changes the organic matter in wastewater from liquid phase to solid phase or gas phase, not only does not completely eliminate organic pollutants but also consumes A large number of chemicals, and cause waste accumulation and secondary pollution

Images