How to Select Dissolved Air Flotation Systems - Wuxi Wanchuan Environmental Equipment Technology Co., Ltd.

1

Influent water quality directly determines equipment suitability, considering suspended solids concentration, particle size, pollutant type, and pH value.
For high suspended solids concentrations, a high-efficiency dissolved air flotation (DAF) system is recommended to improve bubble-particle collision efficiency.
For high proportions of oily pollutants, a dedicated skimming device is necessary to enhance separation.
Prevent oil adhesion from affecting equipment operation by selecting appropriate separation technology.

2

Treatment capacity should match actual peak demand with a 10-20% margin to prevent equipment overload.
Effluent water quality standards directly influence process selection.
For strict discharge standards, shallow air flotation or high-efficiency dissolved air flotation systems should be selected.
These systems offer higher separation accuracy, effectively reducing suspended solids and COD content in effluent.

3

Selection should align with the overall water treatment process flow, ensuring compatibility with pretreatment and subsequent advanced treatment units.
If pre-screening and sedimentation tank treatment effects are good, conventional dissolved air flotation (DAF) systems can be selected.
When used as the core treatment unit, prioritize equipment with high automation and stable operation.
Reduce manual intervention and improve treatment continuity through automated control systems.

4

Operating costs include energy consumption, reagent consumption, and labor costs.
Prioritize equipment with low energy consumption and low reagent dosage.
Consider maintenance difficulty, selecting models with simple structures and fewer vulnerable parts.
Reduce equipment inspection frequency and maintenance costs to extend service life and ensure long-term stable operation.