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  • PWI Co., Ltd.

    Solutions

    Solutions

    Solar products wastewater

    Three years warranty

    Three years warranty

    Skidding assembly

    Skidding assembly

    Commissioning and training

    Commissioning and training

    Specificities

    The photovoltaic wastewater mainly comes from the cutting, grinding, and slicing of silicon rods, as well as the waste additive liquid and cleaning wastewater generated during the grinding, corrosion, and polishing processes of silicon wafers. The main difficulties in its treatment include: high concentration of organic matter (mainly polyethylene glycol, etc.), suspended solids (mainly silicon powder and silicon carbide), as well as pollutants such as fluoride ions, acid bases (mainly buffer acids such as hydrofluoric acid and nitric acid).

    Process flow diagram

    Equipment list

    Capacity 5-75m 3/h

    Name

    Basic system

    Quantity

    Senior system

    Quantity

    Complete system

    Quantity

    System description

    Reaction system

    Sludge pump

    1 unit

    Sludge pump

    1 unit

    Sludge pump

    2 units

    The reaction system mainly doses right chemicals such as coagulants and coagulants to the sludge to promote the flocculation of sludge particles and improve its dehydration performance.

    Pipeline mixer

    2 pieces

    MR reaction tank

    1 set

    MR reaction tank

    1 set

    PAM dosing bucket

    1 piece

    PAM dosing bucket

    2 pieces

    PAM integrated dosing device

    1 set

    PAM dosing pump

    1 unit

    PAM dosing pump

    1 unit

    PAM dosing pump

    2 units

    PAC dosing bucket

    1 piece

    PAC dosing bucket

    2 pieces

    PAC dosing bucket

    2 pieces

    PAC dosing pump

    1 unit

    PAC dosing pump

    1 unit

    PAC dosing pump

    2 units

    Flowmeter

    /

    Flowmeter

    /

    Flowmeter

    1 piece

     Sedimentation system

    VMC

    1 unit

    VMC

    1 unit

    VMC

    1 unit

    The sedimentation system is mainly used for concentration treatment of sewage, facilitating pressure filtration.

    Pneumatic sludge discharge valve

    1 piece

    Pneumatic sludge discharge valve

    1 piece

    Pneumatic sludge discharge valve

    1 piece

    Sludge pump

    1 unit

    Sludge pump

    1 unit

    Sludge pump

    2 units

    Drainage pump

    1 unit

    Drainage pump

    1 unit

    Drainage pump

    2 units

     Pressure filtration system

    Mixing tank

    1 piece

    Mixing tank

    1 piece

    Mixing tank

    1 piece

    The main function of the pressure filtration system is solid-liquid separation

    Feeding pump

    1 unit

    Feeding pump

    1 unit

    Feeding pump

    2 units

    KMP

    1 set

    KMP

    1 set

    KMP

    1 set

    Control system

    PLC control cabinet

    1 set

    PLC control cabinet

    1 set

    PLC control cabinet

    1 set

    All automation control of equipment provided by our company will be integrated into this system and run fully automatically

    Accessaries

    Pipelines, valves, cables, etc

    1 batch

    Pipelines, valves, cables, etc

    1 batch

    Pipelines, valves, cables, etc

    1 batch

    The specific quantity of cables and pipe valves required within the system depends on the customer's on-site situation.

    Please request a detailed list of system from our sales consultant.


    Function comparison

    Function

    Basic system

    Senior system

    Complete system

    Fully automated control

    Fault alarm

    Automatic reaction container

    -

    Automatic backup switching

    -

    -

    Automatic regulation of dosing

    -

    -

    Frequency conversion control or not

    -

    -

    Soaking interval time

    4 hours

    8 hours

    Fully automatic


    Optional features

    Serial number

    Name

    Specifications

    Function

    1

    Water Reuse

    PE tank+pump+liquid level gauge+integrated control

    Transport the supernatant to the production line for reuse using pressurized transportation method

    2

    Special anti-corrosion

    FRP Coating for the liquid connection parts

    Prevent corrosion caused by high acid, high salt, high fluoride, etc

    3

    Special materials

    304/316L, etc

    Selection based on user material characteristics

    4

    Overall Skid Installation

    Patterned steel platform+fixed bracket+trunking, pipelines, cables, etc

    Easy to install, transport, and move flexibly

    5

    PH automatic adjustment

    PH online monitoring+integrated control+acid-base dosing system

    Enable the effluent to meet the standard pH value

    6

    Precision filter

    Including multi-stage centrifugal pump

    Reduce the content of suspended solids in the filtrate and regulate water quality

    7

    Explosion-proof

    DIIBT4/CT4, etc

    Electrical components, motors, etc. placed in explosion-proof areas are classified according to different levels

    8

    Conveying system/temporary storage system

    Conveyor/sludge storage hopper

    Mud cakes can be collected through conveying equipment or temporary storage systems, reducing manual labor.


    +86-523-88638888

    info@pwi-de.com

    66 Wuliangsi Road, Taizhou, Jiangsu, China

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