Air floatation treatment is to pass the air into the waste water and to release it from the water in the form of tiny bubbles, so that the emulsified oil, tiny suspended particles and other contaminants in the waste water can be adhered to the bubbles, and float up to the surface with bubbles to form a foam, gas, water and particle (oil) three-phase mixture, and the purpose of separating impurities and purifying waste water is achieved by collecting froth or scum. The air floatation equipment includes dissolved air floatation equipment and shallow air floatation equipment. The dissolved air floatation equipment introduces new technology from Japan, uses high-efficiency dissolved air pump to mix water and gas, pressurize and dissolve them to form dissolved air water, and then release them under reduced pressure. The fine bubbles precipitate and float up with high-efficiency adsorption of suspended particles, so as to achieve the purpose of solid-liquid separation. Shallow air flotation equipment is designed based on “shallow theory” and “zero speed” principle. It integrates flocculation, air flotation, skimming, sedimentation and mud scraping. It is an efficient and energy-saving water purification equipment.
It is applied to the treatment of waterworks with lakes and rivers as water sources to remove algae and reduce turbidity; It is used for industrial sewage treatment and recycling of useful substances in sewage;
Technical advantages
The system adopts the integrated combination mode, which effectively reduces the space demand, occupies a small area, has low energy consumption and is convenient for installation and transportation.
High degree of automation, convenient operation and simple management.
The gas dissolving efficiency is high and the treatment effect is stable. The gas dissolving pressure and the gas dissolving water reflux ratio can be adjusted according to the needs.
Equipment characteristics
Large processing capacity, high efficiency and less land occupation.
The process and equipment structure are simple and easy to use and maintain.
It can eliminate sludge bulking.
Aeration into water during air flotation has obvious effect on removing surfactant and odor in water. At the same time, aeration increases dissolved oxygen in water, providing favorable conditions for subsequent treatment.
For the water source with low temperature, low turbidity and more algae, the best effect can be obtained by air flotation.
Applicable to all kinds of wastewater treatment, oily wastewater treatment, sludge concentration and water supply treatment; The separation specific gravity is close to water and insoluble suspended solids, such as grease, fiber, algae, etc;
Post time: Mar-08-2022