Environmental Business

DAF System

Consists of four important parts; air compressor, pressure pump, air dissolving tube, flotation tank. Applied the technology of making the pollutant in raw water rising up and discharging with 30-70㎛ microbubble.

Process

Raw water Inflow -> Mixing/Coagulation -> Flocs attached to microbubble generated from microbubble generator and float in Floatation Tank. -> Sludge Removal by the upper sludge removal device -> Treated water is released to collector and treated by physiochemical process.

See the Microbubble Generation

Characteristics of pressure flotation system

• Solid-liquid separation method which respond better to load change in existing treatment plant
• Mirobubble is tiny which has sticking effect to FLOC leading to high surface loading
• Surface loading is maximum of 15㎥/㎡·hr, 1.3times more efficient compared to competitor products.
• Exceptional performance of microbubble generator which increases bubble density causing less circulation of water to reduce power cost of pressure pump.
• Short stay period within rise tank (average 15~20 minutes), Minimized equipment area to resolve land shortage.
• Compared to competitor product, entire structure is lighter and more compact and does not require heavy base structure or support
• Centralized automatic system, automated operation possible

Sites where pressure flotation system can be applied

• Sewage, waste water, heavy water, stagnant water
• Large-scale waste water treatment plant equipment
• Factory waste water with medium hardness SS
• Farming and fishing livestock waste water treatment plant
• Treatment plant with unstable treatment quality due to high load rate in aeration tank and final settling reservoir
• Treatment plant with severe seasonal load change
• Treatment plant using 3rd filter

Field Measurement Data