Mars Pet Foods Wastewater Treatment Project, Beijing, China
1 Project Overview
The Mars Foods (China) Wastewater Treatment Project is an environmental infrastructure project supporting an international food manufacturing facility located in Beijing, China.
The project serves a global food production base, treating high-strength organic wastewater generated during food processing, cleaning, and production line operations. The wastewater contains high COD, oils, and suspended solids with strong fluctuation characteristics.
The system adopts a combined anaerobic, aerobic, and membrane treatment process to ensure stable compliance with strict environmental standards required for international food manufacturers.
2 Project Information
| Item | Details |
|---|---|
| Project Name | Mars Foods (China) Wastewater Treatment Project |
| Location | Huairou District, Beijing, China |
| Project Type | Food Manufacturing Wastewater Treatment |
| Treatment Capacity | 100 m³/day |
| Service Object | International Food Manufacturer |
| Contract Model | EPC General Contracting |
| Core Process | UASB + A/O + MBR |
| Discharge Standard | Beijing Class B standard |
3 Client Challenges
High organic load wastewater from food production processes
Large fluctuations in water quality and flow rate
High oil and suspended solids content
Limited available land for treatment system
Strict ESG and environmental compliance requirements
High stability requirements for continuous production
Core Challenge
Ensure stable wastewater treatment performance under high organic load and strict international compliance requirements
4 Engineering Solution
SYNERAQUA implemented a compact and high-efficiency biological treatment system combined with membrane separation technology
Process Flow
Food Processing Wastewater → Pre-treatment → UASB Anaerobic Reactor → A/O Biological Treatment → MBR System → Disinfection → Compliance Discharge
Engineering Strategy
High-efficiency anaerobic treatment for COD reduction
Biological nutrient removal through A/O system
MBR membrane separation for high-quality effluent
Compact system design for limited site conditions
Fully automated operation and monitoring system
5 Scope of Work
SYNERAQUA was responsible for full EPC delivery, including
Process design and system engineering
Anaerobic treatment system construction
Biological treatment system implementation
MBR 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
UASB High-Rate Anaerobic System enabling efficient COD removal
A/O Biological Treatment ensuring stable nitrogen and organic matter removal
MBR Membrane Technology providing high-quality effluent and compact footprint
Integrated Compact Design suitable for limited industrial space
Smart Automation Platform enabling stable and low-maintenance operation
7 Performance Results
Treatment Capacity: 100 m³/day
COD Removal Efficiency: >97%
Effluent Standard: Beijing Class B standard
Automation Level: Fully automated operation
System Stability: >99%
8 Project Value
The project ensures stable environmental compliance for international food manufacturing operations
Key contributions include
Stable wastewater treatment under high organic load conditions
Improved ESG performance for the client
Reduced environmental compliance risk
Compact system suitable for production site constraints
Long-term stable operational performance
