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Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical

Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical

    • Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical
    • Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical
  • Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical

    Product Details:

    Place of Origin: China
    Brand Name: Purescience
    Certification: ISO9001 / ISO14001
    Model Number: CQJ-3

    Payment & Shipping Terms:

    Minimum Order Quantity: 1
    Price: USD30000
    Packaging Details: wooden case
    Delivery Time: 8-10 weeks
    Payment Terms: L/C, T/T
    Supply Ability: 5 sets per month
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    Detailed Product Description
    Capacity: 800 M3/day Tank Diameter: 3000 Mm
    Tank Depth: 750mm Drive Motor: 0.25 Kw
    Skimmer Motor: 0.25 Kw Influent & Clean Water Pipe: DN100
    Sludge Pipe: DN80 Recycle Pipe: DN125
    Dissolved Air In & Out: DN80 HRT: 3 - 5 Minutes
    Surface Load: 8 - 15 M3/m2.h Bubble Diameter: 3 - 7 µm
    High Light:

    sewage treatment plants


    industrial waste water treatment

    DAF Dissolved air flotation for waste water treatment in chemical and petrochemical 800 m3/day Stainless steel


    DAF treatment system is to reduce Chemical Oxygen Demand (COD) loading by the removal of high COD contaminants including fats, oils and greases, colour, organic matter and colloidal material. A reduction of up to 90% of COD and suspended solids can be achieved with a dissolved air flotation system. The DAF system can be used with or without the addition of chemicals; depending on the waste type, chemicals can further enhance performance.

    Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical 0

    Structure explaination

    • Integrate flocculation, air flotation, skimmer, sedimentation and mud scraper
    • Influent is pumped into center inlet pipe and evenly distributed to the air flotation pond through distributor
    • The flow rate in distribution pipe is same as its flow out rate but reversely, therefore a "zero speed"
    • The inflow disturbance is minimized and floc is vertically moves under static status.
    • The skimmer moves synchronizely with the main machine, while keep rotating to collects the scum and discharged them out through central mud pipe.
    • The clean water is collected into clean water pipe, which also moves synchronizely with the main machine, The clean water pipe is separated from water distribution pipe by water distribution gear, therefore, no interference.

    Core technology


    The high frequency common rail injection strong-solvent cutting patent technology is adopted. The high-speed rotation generates the strong centrifugal force and the micron air integration system makes the dissolved air concentration reach the theoretical maximum value within only three seconds without concentration gradient, which provides guarantee for the manufacturing of large-scale micro bubbles and at the same time, the dynamic factor is reduced substantially and the power consumption cost is subsequently reduced


    Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical 1

    The microsecond rapid phase separation device is adopted, which makes the phase of water molecule and air molecule in the dissolved air water separate at high speed in reverse direction in less than one microsecond through special structure, instantaneously gather and form the even micro bubbles carrying charge with the diameter of 3-7μm and therefore make the bubble concentration increase geometrically under the same dissolved air quantity. The integrated charged bubble has changed the surface tension of the water, absorbed with the colored group and part of hydrophilic colloid, which is a revolutionary breakthrough of purification efficiency and meanwhile, the input amount of PAC and PAM is substantially reduced or becomes unnecessary.

    Dissolved Air Flotation Daf Water Treatment For Chemical Petrochemical 2


    • The purification pond is shallow, however, its surface has sufficient scum reserve space, which is specially suitable for the treatment of high and dense sewage.
    • It ensure small, or even zero floor space, which could be overhead, assembled or set on the building.
    • It’s set with automatic water level adjustment device, providing wide flow application scope and high scum solid rate
    • It has great rigidity and could be supported by only one “groined” concrete beam. It’s not necessary to build the platform and the civil engineering expense is quite low
    • The rotary joint adopts the high-tech patened technology, which requires no maintenance. The abrasion could be adjusted as well. The long-term operation will not generate the water leakage and belongs to permanent design
    • The key parts and components, such as the bearing, after service life calculation and examined by the industry practice, give extremely low failure tate and low maintenance expenses. The drive and scraping motors are left with sufficient margins to ensure the long-term continuous operation will not be overheated
    • The moving elements are set with multiple protection, which could be reliably operated in the open air for long time
    • It’s set with the lubrication device, which could ensure small maintenance workload and convenient management



    Model Max capacity (m3/day) Diameter (mm) Disc height (mm)
    CQJ-2 350 2000 650
    CQJ-3 800 3000 750
    CQJ-4 1600 4000 800
    CQJ-4.5 2000 4500 800
    CQJ-5 2500 5000 800
    CQJ-6 3600 6000 800
    CQJ-7 4500 7000 850
    CQJ-8 6000 8000 850
    CQJ-9 7500 9000 850
    CQJ-10 10000 10000 850
    CQJ-11 12000 11000 925
    CQJ-12 15000 12000 925
    CQJ-13 18000 13000 925
    CQJ-14 22000 14000 1050
    CQJ-15 26000 15000 1050
    CQJ-16 30000 16000 1050
    CQJ-18 40000 18000 1100
    CQJ-21 60000 21000 1100






























    Industry application


    Meat processing Laundries and textiles Egg processing By product rendering
    Pulp and paper Plastics recycling Dairy and milk products Bakeries
    metal plating & finishing Snack food processing Confectionaries Food & beverage
    Petrochemical refining Natural gas and petroleum fracking Bio chemicals Printing & dyeing


    Comptetive advantage


    It’s the designated enterprise of the Ministry of Chemical Industry, and cooperated with US Dransfield Company to specialize in the production of DAF equipments. It has cooperated with the Chinese and foreign groups, represented by Doctor James Madison, Doctor Peter Keatinge and Joseph Pankratz, former main designers of Krofta to develop the highly effective superficial DAF (Krofta) regeneration products superficial ion DAF with super high surface load.

    Contact Details
    Shanghai Xunhui Environment Technology Co., Ltd.

    Contact Person: Mr. Murphy

    Tel: +8613816614405

    Send your inquiry directly to us (0 / 3000)

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