High Quality DAF Dissolved Air Flotation System

Product Overview

Description

ECOCF Dissolved air flotation (DAF) is a water treatment process that clarifies waste water or other water by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or waste water under pressure and then releasing the air at atmospheric pressure in a flotation tank basin. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device.

ECOCF combined DAF consists of flotation tank, dissolved air system, reflux pipe, dissolved air released system, skimmer(Based on customer needs, there are combined type, traveling type and chain-plate type to choose. ), electric cabinet and so on.

Air flotation technology plays an important in solid-liquid separation. (simultaneously reduce COD,BOD,chroma,etc ). Firstly, mix flocculating agent into raw water and stir thoroughly. After the effective retention time (lab determines the time, dosage and flocculation effect), the raw water enters into the contact zone where microscopic air bubbles adhere to the floc and then flows into the separation zone. Under the buoyancy effects, the tiny bubbles float the flocs to the surface, forming a sludge blanket. A skimming device removes the sludge into the sludge hopper. Then the lower clarified water flows into the clean-water reservoir through the collecting pipe. Some of water are recycled to the flotation tank for the air dissolving system, while others will be discharged. 

 

 

 

ECOCF DAF is widely used in treating the industrial wastewater effluents from oil refineries, petrochemical and chemical plants, natural gas processing plants, paper mills, general water treatment and similar industrial facilities, such as electroplating, food, sluaguthering, brewing, tanning, printing and dyeing, paper making etc..