PWI Co., Ltd.

Solutions

Solar products wastewater

Photovoltaic wastewater mainly comes from the waste additive liquid and cleaning wastewater generated in the process of silicon rod cutting, grinding and slicing, as well as silicon wafer grinding, etching and polishing. Its treatment difficulties mainly include: high concentration of organic matter (mainly polyethylene glycol, etc.), suspended solids (mainly silicon powder and silicon carbide), as well as fluoride ions, acids and bases (mainly hydrofluoric acid, nitric acid and other buffer acids) and other pollutants

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Glass process wastewater

The main polluting components of glass processing wastewater are "coolants" and saw blade cooling water. Typically, the main components of coolants are resin acids and their saponification products, unsaturated fatty acids and their saponification products, and lignin and its degradation products. Resin acids are mainly rosin acid and hippuric acid.

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Industrial ceramics process wastewater

Ceramic processing wastewater is clay, feldspar, limestone and other raw materials filled with the appropriate dispersant and moisture moulding berkelium firing into ceramics in the production process of wastewater discharged. Wastewater mainly from before and after the moulding process, wastewater containing solid waste concentration of 0.1-0.2% (by weight), PH7.5-8.5, generally by the natural sedimentation pond precipitation treatment and discharge. After discharge, blockage of drainage pipes and siltation of the river should be prevented.

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Plastics recycling wastewater

Recycled plastics recycling is the production of new or discarded plastics that have been used through a dowel rod machine, and then cut into pellets by a granulator. Plastic recycling process mainly produces plastic cleaning, separation and wet crushing process.

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Kitchen and bathroom products process water

Kitchen and bathroom products wastewater is clay, feldspar, limestone and other raw materials filled with the appropriate dispersant and moisture moulding berkelium firing into ceramics in the production process of wastewater discharged. Wastewater mainly from before and after the moulding process, wastewater containing solid waste concentration of 0.1-0.2% (by weight), PH7.5-8.5, generally by the natural sedimentation tank precipitation treatment and discharge. After discharge, blockage of drainage pipes and siltation of the river should be prevented.

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Lithium battery rejuvenation

Waste lithium battery wastewater will generally be in the lead-acid battery production process, coating process, chemical process, as well as battery cleaning process to produce heavy metal wastewater containing lead; at the same time in the field of lithium batteries, solar batteries, there will be heavy metal wastewater, acid and alkali wastewater, high nitrogen, high phosphorus-containing sewage, etc.

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New energy process wastewater

New energy battery wastewater will generally be in the lead-acid battery production process, coating process, chemical process, as well as the battery cleaning process to produce lead-containing heavy metal wastewater; at the same time in the field of lithium batteries, solar cells, there will be heavy metal wastewater, acidic and alkaline wastewater, high-nitrogen, high phosphorus wastewater and so on

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Coalbed Methane Extraction Water Softening

The main sources of CBM wastewater are: drilling fluids: drilling fluids are specialised slurries, usually with chemicals added to protect the well wall, and are usually formulated with water, bentonite and sodium hydroxide.

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Solar products wastewater