Diving aerators can be divided into submersible jet aerators and submersible centrifugal aerators according to their principles and uses. The submersible aerator is used for aeration and agitation of the aeration tank and aerated grit chamber of the sewage treatment plant, oxygenating and mixing the mixture of sewage sludge, biochemical treatment of the sewage or aquaculture and landscape water conservation In addition, the submersible jet aerator can also be used in the iron and manganese process in the front section of the tap water process, and can also be used in the tap water replenishment cycle process of high-rise buildings.
Centrifugal aerator principle
The submersible centrifugal aerator is directly driven by a motor and an impeller. The centrifugal force generated by the rotation of the impeller is used to discharge the surrounding water to form a low-pressure zone. At the same time, a vacuum is created at the inlet of the impeller to draw in air, and the gas and water in the mixing chamber are sufficient. Mix and form a uniform gas-water mixture, which is quickly discharged under the action of centrifugal force.
Due to the strong jet of water, an effective circulation of water is caused, and the air is cut into a large number of tiny bubbles. The surface area is greatly improved, and since the bubble rises slowly, a large amount of oxygen in the air is dissolved in the water, so that the machine is more efficient than other types of aerators.
Jet aerator principle
The submersible jet aerator passes through the nozzle to form a high-speed water flow through the nozzle, forming a vacuum suction air around the nozzle, mixing with the water flow through the mixing chamber, generating a water-gas mixture flow in the flare-shaped diffusion tube, and ejecting at a high speed. The water flow entrained with many bubbles is vortexed and stirred in a large area and depth of water to complete the aeration, and its shaft power does not change with the change of the submerged depth, and the intake air amount can be adjusted.
Automatic Nucleic Acid Extractor
Nucleic acid extraction instrument is an instrument that automatically completes the nucleic acid extraction of samples by applying the supporting nucleic acid extraction reagents. Widely used in disease control centers, clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbial testing, food safety testing, animal husbandry and molecular biology research and other fields.
Using magnetic beads as the carrier, using the principle that magnetic beads adsorb nucleic acid under high salt and low pH value, and separate from nucleic acid under low salt and high pH value, and then move the magnetic beads or transfer the liquid to realize the entire extraction and purification process of nucleic acid. Due to the uniqueness of its principle, it can be designed into a variety of throughputs, which can be extracted from a single tube or 8-96 samples, and its operation is simple and fast. It only takes 30-45 minutes to extract 96 samples, which greatly improves the The experimental efficiency is low and the cost is low, so it can be used in different laboratories, and it is the mainstream instrument on the market.
Features of Magnetic Bead Nucleic Acid Extractor
1. Enables automated, high-throughput operations.
2. Simple and fast operation.
3. Safety and environmental protection.
4. High purity and high yield.
5. No pollution and stable results.
6. Low cost and easy to be widely used.
7. Different types of samples can be processed simultaneously.
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