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