Xinxiang Wastewater Leachate Treatment Project
1 Project Overview
The Xinxiang Wastewater Leachate Treatment Project is a key environmental protection infrastructure project in Henan Province, China, focusing on the safe and compliant treatment of landfill leachate generated from municipal solid waste disposal facilities.
The project treats high-strength and highly complex leachate with strong organic load, high ammonia nitrogen concentration, and high salinity, ensuring stable compliance with stringent national discharge standards and reducing environmental risks associated with landfill operations.
The system adopts a multi-stage advanced treatment process combining biological treatment and membrane separation technologies to achieve reliable long-term operation and stable effluent quality.
2 Project Information
| Item | Details |
|---|---|
| Project Name | Xinxiang Wastewater Leachate Treatment Project |
| Location | Xinxiang City, Henan Province, China |
| Project Type | Landfill Leachate Treatment |
| Treatment Capacity | 400 m³/day |
| Waste Type | Municipal Solid Waste Leachate |
| Contract Model | EPC General Contracting |
| Core Process | Pretreatment + MBR + NF + RO |
| Application | Landfill leachate compliance treatment |
3 Client Challenges
Extremely high COD and ammonia nitrogen concentration
Strong fluctuations in influent quality
High salinity and refractory organic compounds
Strict environmental discharge requirements
High risk of membrane fouling and scaling
Requirement for stable long-term continuous operation
Core Challenge
Develop a stable and robust advanced treatment system capable of handling high-strength landfill leachate under complex and variable conditions
4 Engineering Solution
SYNERAQUA implemented a multi-barrier advanced treatment system integrating biological and membrane technologies
Process Flow
Leachate → Pretreatment System → MBR Biological Treatment → Nanofiltration System → Reverse Osmosis System → Concentrate Treatment System → Discharge
The system ensures stepwise removal of organic pollutants, ammonia nitrogen, and dissolved salts to achieve stable compliance
5 Scope of Work
SYNERAQUA was responsible for full EPC delivery, including
Process design and system engineering
Leachate pretreatment system construction
MBR system supply and integration
NF and RO membrane system integration
Electrical and instrumentation works
Automation and PLC control system
Installation supervision and commissioning
Operator training and technical support
6 Key Technologies and Engineering Highlights
MBR Biological Treatment System ensures stable high-load organic pollutant removal
Nanofiltration System enables selective separation of refractory organic compounds and multivalent ions
Reverse Osmosis System provides deep desalination and stable effluent compliance
Anti-fouling operation strategy improves membrane system stability and extends service life
Integrated multi-stage treatment architecture ensures robustness under fluctuating influent conditions
7 Performance Results
Treatment Capacity: 400 m³/day
COD Removal Efficiency: >98 percent
Ammonia Nitrogen Removal Efficiency: >95 percent
Effluent Standard: Strict landfill leachate discharge compliance standard
Automation Level: Fully automated operation
System Stability: High long-term operational reliability
8 Project Value
The project significantly improves landfill leachate treatment capacity and reduces environmental risk for municipal solid waste management
Key contributions include
Stable compliance with strict environmental regulations
Effective treatment of high-strength leachate
Reduced pollution risk from landfill operations
Improved environmental safety of municipal waste facilities
Long-term stable system performance
