Cyclic adsorption system for multi-point detection based on SERS microfluidics

Abstract

The invention discloses a multi-point detection cyclic adsorption system based on SERS microfluidics, which belongs to the technical field of uranium extraction. The multi-point detection cyclic adsorption system based on SERS microfluidics includes a switchable adsorption system connected with a control system And the waste liquid treatment system, there is a circulation system connected between the switchable adsorption system and the waste liquid treatment system. The circulation system includes a long and narrow detection pipeline, a sewage discharge valve, a return circulation pipeline and a sewage circulation valve. There are multiple internal connections of the long and narrow detection pipeline. The detection mechanism can realize real-time multi-point detection of sewage after each uranyl ion is adsorbed in the switchable adsorption system, and the multi-point detection is set in a narrow pipeline, which greatly reduces the detection area and realizes no dead ends in all directions The detection greatly improves the detection accuracy, and according to the real-time detection data, the sewage that does not meet the target is controlled by the control system to flow back into the adsorption system, so as to realize multiple cycle adsorption and realize the final high-efficiency discharge.

Description

technical field [0001] The invention relates to the technical field of uranium extraction, and more specifically relates to a multi-point detection cycle adsorption system based on SERS microfluidic control. Background technique [0002] As global resources dwindle and the population continues to increase, in order to prevent social, political and environmental factors from affecting energy supply security and causing global economic problems, people have begun to explore and utilize unconventional forms of industrial metals and minerals reserves. The main source of uranium is pitchblende UO, and the distribution of uranium ore is relatively concentrated. Only 15 countries have economically exploitable uranium ore reserves that can meet the requirements for the development of nuclear power generation, of which Australia and Kazakhstan account for 33%. At the current consumption rate of uranium resources, the global uranium resource reserves can sustain the development of nuc...

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Problems solved by technology

[0007] At present, there is an urgent need to develop an automated and controllable uranium adsorption system, but the detection of uranyl ions in the existing uranium adsorption system is often only simple sampling detection or small area detection during detection, the detection is not comprehensive, and the detection The accuracy of the results is low, resulting in the discharge of uranyl ions in the sewage before the content is reduced to the target, which aggravates the pollution of the environment

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