Oil containing wastewater demulsification air flotation machine

Here isOil containing wastewater demulsification air flotation machineIts core working principle and key steps:

Demulsification pretreatment

Add demulsifiers (such as polyaluminum chloride and polyacrylamide compound agents) to break the stability of emulsified oil through charge neutralization and adsorption bridging, causing small oil droplets to condense into larger oil clusters, facilitating subsequent bubble capture. ‌

Air flotation separation process

Dissolve air and release bubbles: Under high pressure, air is dissolved in water to form supersaturated dissolved air and water. After decompression, micron sized bubbles (diameter ≤ 30 microns) are released. ‌

Adsorption binding: Bubbles quickly adhere to condensed oil droplets and suspended solids, forming a "bubble pollutant" complex. ‌

Flotation separation: The composite rises to the water surface due to its lower density than water, and is removed by a scraper device. Clear water is discharged from the bottom. ‌

Application scenarios

Petrochemical industry: Processing oily wastewater such as crude oil and gasoline, separating floating oil and emulsified oil. ‌

Food processing: Removing oil and scum from slaughter wastewater. ‌

Municipal/Industrial: As a pre-treatment equipment, it reduces the load of subsequent biochemical treatment. ‌

advantage

High processing efficiency: 3-5 times faster than traditional precipitation methods, reducing footprint by 60%. ‌

Strong applicability: capable of treating high concentration oily wastewater (such as reducing 50mg/L to below 5mg/L)

The stability of the oil containing wastewater demulsification air flotation machine is mainly reflected in its adaptability to complex water quality, the sustainability of treatment efficiency, and the reliability of equipment operation. The following is a specific analysis:

Emulsified oil demulsification ability

The air flotation machine destroys the stability of emulsified oil through demulsifiers (such as polyaluminum chloride), promoting the coalescence of small oil droplets into large particles and improving separation efficiency. ‌

Some technologies use physical demulsification (such as cyclone dissolved air flotation) to avoid the use of chemical agents and reduce the risk of secondary pollution. ‌

Ability to resist water quality fluctuations

The new generation of air flotation machines, such as jet dissolved air flotation, have strong resistance to load impact and can maintain stable operation even in the face of high concentration pollutants or water quality fluctuations. ‌

Modular design reduces footprint and adapts to limited space scenarios such as oil fields. ‌

operational stability

Intelligent control system: realizes automatic adjustment of parameters such as dissolved gas pressure and floating slag thickness, with a failure rate approaching zero. ‌

Energy saving and consumption reduction: The energy consumption is only 1/5-1/8 of traditional equipment, reducing the risk of equipment loss. ‌

Continuous processing effect

The removal rate of suspended solids, COD and other pollutants by the air flotation machine is stable, and the water content of the floating slag is low (3% -5%), which is convenient for subsequent resource recovery.