QCF Efficient Air Flotation Wastewater Treatment Machine
In the treatment process of water supply and drainage ,solid and
liquid separation technology and equipment is one of the key items.
Specific gravity close to the water, the removal of small suspended
solids ,flotation is one of the most effective methods.
The device is widely used in water supply and drainage treatment
works. First applied to the lake as the source of the water plant
algaecide turbidity; second ,used in industrial sewage treatment
works, such as petrochemical ,textile, printing and dyeing
,electroplating , tanning , food industry and other fields; applied
sewage recovery of useful material ,such as :paper, pulp water
recycled fiber and other fields.
- The effective depth is 600 to 750mm
- Pool hydraulic retention time is short (5 to 10 min)
- Purification capacity ,high surface load
- Installation and maintenance in low cost ,easy to clean
- The high degree of purification , algae and other suspended
solids removal rate is more than 90% ; the concentrated sludge
concentration is up to 35%
- The device uses the FA-Dissolved air system ,it is ingenious
structure, dissolved air efficiency up to 90% , the volume is only
one-fifth of the general dissolved air system , with the super
strong ability of the anti-clogging.
3. STRUCTURE AND WORKING PROCESS
The floatation separation technology explanation: The air and water
in a certain working pressure, the air dissolved in water, and
strive to become saturated, and then release/decrease the pressure
of the air dissolved water, it produce a large number of micro air
bubbles. The micro air bubbles fully contact the suspended
particles in the water, the suspended particles adhere to the
bubbles, float up to the surface, and then become scum. The scraper
removes the scum. In this way, the water is purified.
QCF efficient Air Floatation device is an advanced rapid flotation
system. It based on the traditional flotation, and successfully
applied the principle of “shallow theory” and “zero speed”. It
integrates flocculation, flotation, skimming, scraping functions.
It is a high efficient equipment for water purification.
Against the shortage of traditional flotation tank, QCF efficient
Air Flotation device change the design. Its raw water flow-in
outlet designed to be mobile, to shorten the raw water bubbles
floating time. When the raw water flows to the flotation tank, the
water outlet is moving to the opposite direction of raw water flow.
In this way, the raw water in the pond is in a relatively static
status, so the bubbles float along the vertical direction to the
surface of the water. The floatation speed is close to the floating
speed of the solids in the raw water (4 to 10 cm/min).
Suspended solids in raw material can quickly float to the surface,
while purified water under the scum keep unmoved, clean water can
be discharged to the pool when the water collect pipes arrive. In
order to make the water inlet and outlet to move synchronously, the
device is designed into a round shape, the water inlet and outlet
is installed on a round turning fixture, making it turning around
the center. This moving water distribution creates the “zero
speed”. The suspended solids in the raw material can quickly float
to the surface, in the three minutes, the raw water can reach the
The device as a whole is cylindrical, compact. The pond is shallow.
It includes the pond, the spiral water distribution system,
dissolved air release system, rotating fixture, clean water collect
system, skimming system, dissolved air system, return water pipe
and electronic control cabinet. This device provides complete sets
of equipment and control systems, centralized control and
decentralized control combined to make the device to operate
4. QCF SERIES HIGH EFFICIENT AIR FLOTATION TECHNICAL DATA
|Type||Cell Body Dia.||Capacity||Dissolved air pump ( kw)||Main Motor||Air Compressor||Scraper||Total Power|