Microbial sensor for detecting cadmium ions

Abstract

The invention discloses a microbial sensor for detecting cadmium ions, which structurally comprises a machine body, a detection device, a transmission line and a collection module, when the microbial sensor is used, a sampled test tube vertically extends between two clamping pieces, the lower end parts of the clamping pieces are connected with resisting blocks, and the resisting blocks can be pressed at the two ends of the outer side of the test tube, so that the test tube is effectively limited; a test tube is translated upwards and extends into a sealing connecting piece, the sealing connecting piece has a sealing effect on the test tube, the phenomenon that waste water in the test tube overflows during shaking is prevented, a shaft rod drives a mounting ring to move under the action of a motor, and the sealing connecting piece drives the test tube to stably rotate under the action of the mounting ring; substances in the wastewater are effectively and uniformly mixed.

Description

technical field [0001] The invention relates to the field of cadmium ion detection, in particular to a microbial sensor for detecting cadmium ions. Background technique [0002] Cadmium is a very toxic heavy metal. A very small amount of cadmium can cause harm to the human body. Cadmium is widely used in electroplating, automobile and aviation, pigment, paint, printing and other industries. The cadmium-containing wastewater discharged from the factory is a water body. The main pollution source of cadmium pollution, rapid and real-time detection of cadmium ions in water is the primary problem to prevent and eliminate cadmium pollution. Detection, when using microbial sensors, areas that need improvement: [0003] When the existing microbial sensor detects cadmium ions in wastewater, the test tube containing cadmium wastewater is connected to the installation ring, and the test tube is driven to rotate through the cooperation of the installation ring and the turntable, so tha...

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Problems solved by technology

[0003] When the existing microbial sensor detects cadmium ions in wastewater, the test tube of cadmium-containing wastewater is connected to the installation ring, and the test tube is driven to rotate through the cooperation of the installation ring and the turntable, so as to facilitate the uniform mixing of the substances in the wastewater, and the turntable drives the installation ring. When rotating, the test tube installed on the mounting ring will also rotate accordingly, and the wastewater inside the test tube will rotate in a vortex on the inner wall due to the centrifugal force of the rotation. When the mounting ring drives the test tube to rotate rapidly, the waste water inside the test tube will rotate Because there is a certain gap between the installation ring and the test tube, the wastewater rotating at the upper end of the test tube will overflow from the gap between the two, and flow out along the outer wall of the test tube, so that the detected water inside the test tube The amount of wastewater will deviate, affecting the detection accuracy of cadmium ions in wastewater

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