Tangshan Xinrui Electronics Wastewater Treatment Project
1 Project Overview
The Tangshan Xinrui Electronics Wastewater Treatment Project is a key environmental infrastructure project supporting a printed circuit board (FPCB) manufacturing base in Hebei Province, China.
The project serves a high-precision electronics production facility involving flexible and rigid-flex PCB manufacturing processes. The wastewater contains heavy metals and complex organic pollutants generated during etching, plating, and cleaning processes.
The system adopts a multi-stage advanced treatment process to ensure stable compliance with stringent discharge standards required for the electronics manufacturing industry.
2 Project Information
| Item | Details |
|---|---|
| Project Name | Tangshan Xinrui Electronics Wastewater Treatment Project |
| Location | Tangshan City, Hebei Province, China |
| Project Type | Electronics Manufacturing Wastewater Treatment |
| Treatment Capacity | 400 m³/day |
| Service Object | FPCB Manufacturing Plant |
| Contract Model | EPC General Contracting |
| Core Process | Chemical treatment + A/O + MBR + Catalytic Oxidation |
| Discharge Standard | Class I discharge standard |
3 Client Challenges
High concentration of heavy metals including copper and nickel
Complex and variable organic pollutants
Large fluctuations in influent water quality
Strict discharge compliance requirements
High requirements for online monitoring accuracy
Strong environmental regulatory pressure
Core Challenge
Achieve stable removal of heavy metals and complex organics under highly variable industrial wastewater conditions
4 Engineering Solution
SYNERAQUA implemented a multi-stage integrated treatment system combining physicochemical, biological, and advanced oxidation processes
Process Flow
Industrial Wastewater → Chemical Precipitation → Heavy Metal Removal → A/O Biological Treatment → MBR System → Catalytic Oxidation → Disinfection → Compliance Discharge
Engineering Strategy
Precise heavy metal precipitation and removal system
Biological treatment for organic pollutant degradation
MBR membrane filtration for solid-liquid separation
Catalytic oxidation for refractory organics removal
Integrated online monitoring and automated dosing system
5 Scope of Work
SYNERAQUA was responsible for full EPC delivery, including
Process design and system engineering
Heavy metal removal system construction
Biological treatment system implementation
MBR and oxidation system integration
Electrical and instrumentation works
Automation and control system integration
Commissioning and performance testing
Operator training and technical support
6 Key Technologies and Engineering Highlights
Precise Heavy Metal Removal Technology ensuring stable copper and nickel compliance
MBR Membrane System providing high-efficiency solid-liquid separation
Catalytic Oxidation System enabling deep degradation of refractory organics
Online Monitoring and Automated Dosing System ensuring process stability
Integrated Multi-Stage Treatment Architecture ensuring high adaptability to water quality fluctuations
7 Performance Results
Treatment Capacity: 400 m³/day
Heavy Metal Removal Rate: 100% compliance
COD Removal Rate: >96%
Effluent Standard: Class I discharge standard
Automation Level: Fully automated operation
System Stability: >99%
8 Project Value
The project significantly improves environmental compliance for electronics manufacturing operations
Key contributions include
Stable removal of heavy metals and toxic pollutants
Improved production environmental safety
Enhanced regulatory compliance capability
Reduced environmental risk for PCB manufacturing
Support for green manufacturing transformation
