The working principle of the floatation water purifier and how gases cause impurities in water to float and separate

The floatation water purifier is a device that uses the floatation principle to purify water. Its core lies in using gases to form tiny bubbles in water, causing suspended solid particles in the water to adhere to the bubbles and rise to the water surface with the bubbles, thereby achieving water purification. This article will delve into the working principle of the floatation water purifier and the mechanism by which gases cause impurities in water to float and separate.

The working principle of the floatation water purifier

The working principle of the floatation water purifier mainly relies on the floatation technology. Floatation technology generates a large number of tiny bubbles by blowing air into the water, and these bubbles adhere to suspended solid particles in the water as they rise, forming bubble-particle flocs. When these bubble-particle flocs reach the water surface, due to the buoyant force of the bubbles, the flocs rise to the surface, thus achieving water purification.

The working process of the floatation water purifier can be divided into four main steps: wastewater entry, chemical mixing, floatation separation, and outlet. Firstly, wastewater enters the floatation water purifier, followed by the addition of chemical agents to coagulate suspended matter in the wastewater into large particles, facilitating subsequent treatment. Then, the wastewater is mixed with bubbles, during which the bubbles interact with suspended matter in the wastewater as they rise in the water, causing the matter to adhere to the bubbles and form bubble-particle flocs. Finally, after the bubble-particle flocs reach the water surface, due to the buoyant force of the bubbles, the flocs rise to the surface, the removed suspended matter is collected and treated, and the purified water is discharged from the outlet of the purifier.

　　How dogases cause impurities in water to float and separate?

The formation of tiny bubbles in water is the key principle of the floatation water purification. The bubbles formed in water have an extremely small diameter, and these tiny bubbles can adhere to suspended solid particles in the water, forming bubble-particle flocs. As the bubble-particle flocs rise, due to the buoyant force of the bubbles, the flocs rise to the water surface, thus achieving water purification. Specifically, the process of gas forming bubbles in water can be regarded as a process of forming a gas-liquid interface. When gas dissolves in water, the gas-liquid interface gradually expands, forming tiny bubbles. These tiny bubbles, as they rise, due to the buoyant force of the bubbles, gradually increase in size and eventually reach the water surface. During this process, the bubbles interact with suspended solid particles in the water, causing the particles to adhere to the bubbles, forming bubble-particle flocs. When the bubble-particle flocs reach the water surface, due to the buoyant force of the bubbles, the flocs rise to the surface, thus achieving water purification.

Gases form tiny bubbles in water, causing suspended solid particles in the water to adhere to the bubbles, forming bubble-particle flocs, which is the key principle of the floatation water purification. As the bubble-particle flocs rise, due to the buoyant force of the bubbles, the flocs rise to the water surface, thus achieving water purification. This purification method has the advantages of high processing efficiency, simple equipment, convenient operation, and small land occupation, and is widely used in the treatment of industrial wastewater and urban sewage.