Integrated with pretreatment, biological treatment and advanced filtration processes, this system is designed for high-COD, complex landfill leachate with fluctuating water quality, providing stable treatment performance for continuous operation.
Product Parameters
This project was implemented at the Zhongtou Waste Treatment Facility in Huainan, Anhui Province, providing a customized leachate treatment solution for wastewater generated during municipal waste storage, landfill operation and organic degradation processes.
With a designed treatment capacity of 40 tons per day (40 TPD), the system is developed to handle landfill leachate characterized by high organic loading, elevated ammonia nitrogen, complex contaminants, unstable water quality and continuous discharge conditions.
The treatment process adopts a combination of:
Leachate Collection → Equalization & Conditioning → Coagulation Sedimentation → Hydrolysis Acidification → Biological Degradation → Advanced Filtration → Compliant Discharge
The system is designed to reduce key pollutants including COD, ammonia nitrogen, suspended solids, color and refractory organic compounds, while improving treatment stability under variable influent conditions. The integrated design helps address common challenges associated with landfill leachate management, such as poor biodegradability, strong odor, high pollutant concentration and fluctuating loads.
Equipped with an automatic PLC control system, the treatment unit supports automated chemical dosing, online monitoring, sludge management and operational alarms. The modular equipment configuration enables continuous operation, simplified maintenance and flexible adaptation to long-term landfill facility requirements.
Application Scenarios
This leachate treatment system is suitable for:
- Municipal landfill sites
- Waste-to-energy plants
- Solid waste management centers
- Waste collection and transfer facilities
- Environmental remediation and wastewater upgrading projects
The system can treat various wastewater streams including:
- Landfill leachate
- Waste compression filtrate
- Waste storage area runoff
- Facility cleaning wastewater
Due to the complex composition and high treatment requirements of landfill leachate, conventional wastewater treatment solutions may face difficulties in maintaining stable performance. Baihuipu provides customized solutions for new landfill wastewater treatment projects, existing system upgrades, environmental compliance improvement and wastewater quality enhancement applications.
Project Description
During daily waste collection and landfill operation at the Zhongtou Waste Treatment Facility in Huainan, Anhui, approximately 40 tons of landfill leachate wastewater is generated every day. This type of wastewater forms through prolonged contact between rainwater and waste layers, dissolving and concentrating various pollutants from decomposing waste materials.
Landfill leachate typically contains high concentrations of organic matter, ammonia nitrogen, humic substances, suspended solids, heavy metals and refractory compounds. Its characteristics include fluctuating pollutant loads, complicated composition, limited biodegradability and strong odor, creating challenges for conventional wastewater treatment systems. Without proper treatment, untreated discharge may affect surrounding soil, groundwater and surface water quality, increasing environmental compliance risks for waste management facilities.
Based on the influent characteristics of the Huainan landfill leachate, Baihuipu developed a customized treatment system featuring high stability, flexible operation and strong resistance to load variations.
The collected leachate first enters the equalization and conditioning tank, where variations in flow rate and pollutant concentration are balanced. This unit provides buffering capacity against seasonal rainfall changes and fluctuations caused by waste volume variations, ensuring more consistent downstream treatment.
The wastewater then passes through coagulation sedimentation, where suspended solids, colloidal particles, part of the heavy metals and macromolecular pollutants are removed. This pretreatment step reduces turbidity and pollutant loading, improving the efficiency of subsequent biological treatment.
After pretreatment, the wastewater enters the hydrolysis acidification process, which breaks down complex organic compounds and improves biodegradability. The biological treatment stage further removes organic pollutants and ammonia nitrogen through microbial degradation. The final advanced filtration process captures residual fine particles and improves treated water quality before discharge.
The complete system integrates equipment, automation control and process optimization, reducing manual operation requirements while adapting to the challenging operating environment of landfill facilities.
After commissioning, the project provides a stable solution for Huainan Zhongtou’s landfill leachate management needs, helping reduce odor issues, environmental risks and operational pressure. The system supports long-term compliant operation and offers a practical reference for small and medium-scale landfill leachate treatment applications.
EN
