English
I. Scope of Application
Electroplating wastewater treatment equipment is primarily designed for various electroplating production and surface treatment industries. It performs detoxification and stabilization treatments on contaminated wastewater—containing heavy metals, acids, alkalis, cyanides, COD, and other pollutants—generated during the electroplating process, ensuring compliance with environmental discharge standards and water reuse requirements.
Key Application Scenarios:
1. Specialized electroplating plants and centralized treatment stations within electroplating industrial parks.
2. Electroplating, electrophoresis, and anodizing workshops within enterprises manufacturing hardware, automotive parts, electronics, molds, fasteners, etc.
3. Production lines for zinc plating, nickel plating, chrome plating, copper plating, gold plating, silver plating, etc.
4. Surface treatment processes such as anodizing, phosphating, passivation, and electroless plating.
5. Process wastewater generated from PCB plating, plastic plating, stainless steel electropolishing, etc.
II. Common Process Flows (Mainstream & Mature Technologies)
1. Typical Comprehensive Process Flow
Screening → Equalization Tank → Coagulation Reactor → Sedimentation Tank → pH Adjustment → Filtration → Disinfection → Compliant Discharge / Reuse
2. Common Process Flow for Heavy Metal-Containing Wastewater
Wastewater Collection → Equalization Tank → Chemical Coagulation (Alkali / Heavy Metal Scavenger / PAC / PAM) → Lamella Clarifier → Sand Filtration / Activated Carbon Filtration → Compliant Discharge
3. Cyanide-Containing Wastewater (Cyanide Destruction Process)
Cyanide-Containing Wastewater → Two-Stage Sodium Hypochlorite Oxidation (Cyanide Destruction) → Mixed into Comprehensive Wastewater Treatment System
4. Chromium-Containing Wastewater (Reduction Process)
Chromium-Containing Wastewater → Acid Addition (pH Adjustment) → Sulfite Reduction → Alkaline Precipitation → Sludge Separation
5. Wastewater Reuse & Zero Discharge Process (High-End)
Comprehensive Wastewater → Pre-treatment → Ultrafiltration (UF) → Reverse Osmosis (RO) → Reclaimed Water Storage Tank → Workshop Reuse
III. Equipment Features
Targeted Removal: Heavy metals, cyanides, acids, alkalis, phosphorus, and COD.
High Degree of Automation: Automatic pH/ORP control and automatic chemical dosing.
Controllable Sludge Generation: Stable effluent quality meeting discharge standards.
Enables Wastewater Reuse: Significantly reduces water consumption.
