Pure Water Equipment For Electroplating And Coating Industries
In the electroplating and coating industry, to enhance the surface finish, brightness and adhesion of the plated parts, pure water with a conductivity of less than 15uS/cm is required for the preparation of the electroplating solution. Additionally, when rinsing the plated parts, pure water with a conductivity of less than 10uS/cm is also needed for cleaning. The water treatment system for the electroplating industry includes a pure water treatment system required for the preparation of electroplating solutions before electroplating, a rare metal recovery system for electroplating rinsing wastewater, a rinsing water recycling system, and a zero discharge system for wastewater. The system is usually composed of ultrafiltration devices, reverse osmosis devices, ion exchange devices, EDI devices, etc., to meet the water quality requirements of the electroplating industry.
Electroplating and coating pure water equipment: The general water production capacity specifications are 0.25 tons per hour, 0.5 tons per hour, 1 ton per hour, 2 tons per hour, and the maximum can reach 100 tons per hour.
Overview:
Electroplating and coating pure water equipment processes raw water (such as tap water or groundwater) into ultra-pure water with extremely low electrical conductivity through a series of complex technological procedures. These ultrapure waters play a significant role in the preparation of electroplating solutions, the cleaning and pretreatment of the surface of the plated parts, and other processes.
Working principle
The working principle of electroplating and coating pure water equipment is mainly based on membrane separation technology, especially the combination of reverse osmosis (RO) technology and electro-deionization (EDI) technology. The specific process flow may vary depending on the equipment model and manufacturer, but generally includes the following steps:
Pretreatment: Suspended solids, organic matter, residual chlorine and other impurities in the raw water are removed through pretreatment equipment such as sand filters and carbon filters.
Reverse osmosis (RO) treatment: By taking advantage of the high-precision filtration performance of RO membranes, dissolved salts, colloids, microorganisms and other impurities in water are further removed to achieve a relatively high purity of water quality.
Electro-deionization (EDI) treatment: Under the action of a direct current electric field, the RO product water undergoes deep desalination treatment through the ion exchange membrane and resin in the EDI module, further enhancing the purity of the water quality.
Terminal filtration and sterilization: After the water has undergone EDI treatment, it is further filtered through the terminal filter for fine filtration, and the microorganisms in the water are killed by the ultraviolet sterilizer to ensure the safety and stability of the effluent quality.
Design basis of Pure Water Equipment For Electroplating And Coating Industries
| Raw water source | The local municipal tap water has a conductivity of less than 400μs/cm. |
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| Ultra-pure water capacity | 2t/h. |
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| Ultra-pure water resistivity | ≤ 15MΩ·CM. |
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| Design temperature | 25℃. |
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| Mode of operation | Automatic operation (manual adjustment) |
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| Design boundaries | The raw water tank is connected from the inlet to the outlet of the water supply. |
Maintenance and upkeep of Pure Water Equipment For Electroplating And Coating Industries
To ensure the long-term stable operation of the electroplating and coating pure water equipment and the stability of the effluent water quality, regular maintenance and upkeep of the equipment are required. This includes cleaning the internal circulation pipes and reverse osmosis membranes, replacing filter elements, resins and other consumables, and inspecting the electrical control system, etc. At the same time, attention should also be paid to the daily operation management of the equipment and the monitoring of water quality.
In conclusion, electroplating and coating pure water equipment is one of the indispensable important devices in the electroplating and coating industry. With its efficient, stable and environmentally friendly operation features, it provides high-quality ultra-pure water support for the electroplating and coating industry.
Process flow chart of Pure Water Equipment For Electroplating And Coating Industries
Product Tags:
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20 T/H Ultra-Pure Water Equipment for Electroplating And Coating Industries with ≤5-20us/cm Resistivity and 25℃ Design Temperature Images
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