Dongyuan Town Rural Domestic Wastewater Treatment Project, Longhai District
1 Project Overview
The Dongyuan Town Rural Domestic Wastewater Treatment Project in Longhai District, Zhangzhou City, Fujian Province is a key rural environmental infrastructure project under China’s rural revitalization and rural living environment improvement strategy.
The project includes the construction of 104 decentralized wastewater treatment stations, each with a treatment capacity ranging from 100 to 300 m³/day, covering multiple administrative villages in Dongyuan Town.
The system adopts standardized integrated wastewater treatment equipment to enable centralized collection, treatment, and resource utilization of rural domestic sewage, significantly improving rural water environment quality and ecological conditions.
2 Project Information
| Item | Details |
|---|---|
| Project Name | Dongyuan Town Rural Domestic Wastewater Treatment Project, Longhai District |
| Location | Longhai District, Zhangzhou City, Fujian Province, China |
| Project Type | Rural Domestic Wastewater Treatment |
| Treatment Units | 104 decentralized treatment stations |
| Single Station Capacity | 100–300 m³/day |
| Service Area | Multiple villages in Dongyuan Town |
| Contract Model | EPC General Contracting |
| Core Process | A²/O + MBR |
| Application | Rural sewage treatment and water environment improvement |
3 Client Challenges
Lack of complete rural sewage collection system
Large fluctuation in wastewater flow rate
Significant variation in influent water quality
Limited available land for infrastructure construction
Insufficient local operation and maintenance personnel
Need to balance investment cost and long-term operating cost
Core Challenge
Develop a long-term, stable, and cost-effective decentralized wastewater treatment system suitable for rural conditions
4 Engineering Solution
SYNERAQUA implemented a distributed standardized wastewater treatment system based on A²/O biological treatment combined with MBR membrane technology
Process Flow
Rural Domestic Sewage → Screening → Equalization Tank → A²/O Biological Treatment → MBR Membrane System → Disinfection → Effluent Discharge or Reuse
The system adopts integrated modular equipment design to meet rapid deployment requirements in rural areas
5 Scope of Work
SYNERAQUA was responsible for full EPC delivery, including
Process design and system engineering
Supply of integrated treatment equipment
Civil works support and construction coordination
Installation and system integration
Electrical and instrumentation works
Automation and PLC control system
Commissioning and performance testing
Operator training and O&M support
6 Key Technologies and Engineering Highlights
A²/O Biological Process ensures efficient nitrogen and phosphorus removal
MBR Membrane Technology provides high-quality effluent and compact system footprint
Modular Decentralized Design enables deployment across multiple villages
Low Maintenance Operation Model reduces requirement for skilled operators
Standardized Equipment System ensures fast construction and consistent performance
7 Performance Results
Total Treatment Stations: 104 sets
Single Station Capacity: 100–300 m³/day
Effluent Standard: Class A discharge standard
Automation Level: Fully automated operation
System Stability: >99 percent operational reliability
8 Project Value
The project significantly improves rural water environment quality and supports China’s rural revitalization strategy
Key contributions include
Effective rural sewage collection and treatment
Significant improvement in village water environment
Enhanced rural living conditions
Support for ecological rural development
Resource recovery and reuse of treated water
