Multi-point detection and circulation adsorption system based on SERS microfluidic linkage

Abstract

The invention discloses a multi-point detection and circulation adsorption system based on SERS microfluidic linkage, and belongs to the technical field of uranium extraction. The multi-point detection and circulation adsorption system based on SERS microfluidic linkage comprises a switchable adsorption system and a waste liquid treatment system which are connected with a control system, a circulation system is connected between the switchable adsorption system and the waste liquid treatment system, the circulation system comprises a narrow detection pipeline, a sewage discharge valve, a backflow circulation pipeline, and a sewage circulation valve, and the inside of the narrow detection pipeline is connected with a multi-point detection mechanism. The system can realize real-time multi-point detection of sewage after uranyl ions are adsorbed in the switchable adsorption system for each time, the multi-point detection is arranged in a narrow pipeline, a detection area is greatly reduced, all-round dead angle-free detection is realized, detection accuracy is greatly improved, wastewater that does not reach the target is returned into the adsorption system through control of the control system according to real-time detection data, multiple circulation adsorption is realized, and final efficient discharge is realized.

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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