Product description: It is mainly applied to separating and removing the tiny and fine suspended solids whose density is close to water. Flotation is a method of water purification whose process is to rapidly decompress and release the dissolved air water generated in the dissolved air system to produce numerous fine bubbles in the water, several of which will adhere to the surface of the flocculated impurity particles and form the suspended solids with density less than 1. The buoyancy of the suspended solids will make itself rise up to the water surface, thus enables the separation of solids from the liquid. The super-effective shallow-layer floatation device is developed on the basis of traditional floatation theory and successful application of “shallow-layer theory” and “zero-speed” theory, which can integrate coagulation, floatation, skimming, deposition and mud scraping, as a super-effective equipment for water purification treatment. This equipment can be widely used in the supply and drainage water treatment projects, which includes: 1. Algae removal and pollutant purification for the river and lake water to be used as running water or landscape-purposed water. 2. Pretreatment of domestic water and concentration of sludge. 3. Treatment of industrial water: The reclamation of papermaking tail water and rinsing. The removal of color and impurity from the printing and dyeing waste water. The removal of heavy metal ions from the electroplating waste water. The separation of oily pollutant from the oil-refining waste water. The treatment of industrial waste water relevant to chemical, food, textile, clothing, butchery, brewage, ore dressing, washing, etc. Main Features: 1. Light in weight, compact in profile, easy to transport and install and energy-conserving. 2. Highly automatic, maneuverable and easy to manage. 3. Highly efficient with duration as short as 3-5 minutes 4. Large capacity of purifying treatment due to large surface load capacity. 5. “Zero-speed” theory applied, which can ensure the distributed water and inlet and outlet water to be static, and highly stabilized because of the minimized disturbance to the flocculated in the water and the instant removal of the scum. 6. “Shallow-layer” theory applied, which enables the available pool depth as shallow as 400-600mm with a small area occupation. 7. Apply efficient backwashing releaser which greatly improves the use efficiency of dissolved air water and ensures the stability of the operation of flotation equipment. 8. Stable treatment performance and realize integrative control of mechanical and electrical instrument.