50Hz 60Hz Landfill Leachate Treatment Plant High Ammonia Nitrogen Wastewater Treatment System

Electrochemical Wastewater Treatment Equipment: Designed for Treating Mature High-Ammonia-Nitrogen Landfill Leachate

Quick Details

Mature landfill leachate has become a universally recognized ultimate treatment challenge in the industry due to its high ammonia nitrogen concentration (usually up to several thousand mg/L), low carbon-to-nitrogen ratio, poor biodegradability, and content of refractory humic substances. Traditional nitrification-denitrification biological nitrogen removal processes face difficulties in startup, extremely unstable operation, enormous costs for carbon source dosing, and high sludge production under such water quality conditions; meanwhile, physicochemical methods such as air stripping and membrane separation are confronted with severe problems including high chemical reagent consumption, generation of high-concentration ammonia-containing tail gas or concentrate, easy scaling, and secondary pollution.

To address the core bottleneck of difficult ammonia nitrogen removal from mature leachate, we have launched our Electrochemical Wastewater Treatment Equipment. Adopting synergistic electrochemical oxidation and conversion technology, this system is specially optimized to achieve efficient and stable removal of high-concentration ammonia nitrogen without external carbon sources and complex biochemical processes, providing an innovative, compact, highly adaptable treatment solution that generates no secondary solid waste.

Core Advantages of the Equipment

Direct Electrochemical Conversion to Break the Low Carbon-to-Nitrogen Ratio Dilemma

Through active chlorine species and hydroxyl radicals generated during the electrochemical process, the equipment can efficiently and directly oxidize ammonia nitrogen into nitrogen gas or nitrate. It eliminates the need for external carbon sources and lengthy sludge acclimation that are essential for traditional biological nitrogen removal. This feature thoroughly resolves the fundamental inhibition of biological nitrogen removal caused by “carbon source deficiency” in mature leachate, enabling stable and high-efficiency nitrogen removal under low carbon-to-nitrogen ratio conditions. The entire process requires no lye dosing for air stripping pretreatment or supplementary carbon source addition, fundamentally avoiding the problems of ammonia-containing waste gas generation and disposal, as well as the subsequent surge in operational costs.

Skid-Mounted Modular Integration to Rapidly Meet Landfill Treatment Demands

Employing factory pre-assembled skid-mounted modules with corrosion resistance and adaptability to harsh environments, the equipment features a compact structure with a small footprint. It can be rapidly deployed in existing treatment areas of landfills or near leachate equalization tanks, enabling quick installation and commissioning. This design is particularly suitable for serving as an enhanced nitrogen removal unit or emergency treatment facility for existing treatment systems, or for phased and zoned mature leachate treatment projects.

Flexible Multi-Functional Configuration to Precisely Match Different Treatment Targets

According to the specific ammonia nitrogen concentration, total nitrogen requirements, and overall treatment process of leachate, the equipment can be flexibly applied in key links:

As a High-Efficiency Enhanced Nitrogen Removal Pretreatment Unit: It directly performs high-efficiency oxidation and conversion on raw high-ammonia-nitrogen leachate or pre-biochemical wastewater, drastically reducing ammonia nitrogen concentration, alleviating the nitrogen removal load and toxic inhibition of subsequent biochemical systems, and making biological treatment feasible.

As an Advanced Treatment & Total Nitrogen Compliance Guarantee Unit: It conducts advanced treatment on biochemical effluent (especially nitrified liquid), further removing residual ammonia nitrogen and refractory organic nitrogen, and ensuring that ammonia nitrogen and total nitrogen indicators consistently meet the strictest discharge standards.

As a Standalone Nitrogen Removal Treatment System: For non-biodegradable mature leachate or membrane concentrate, it can be configured as an independent nitrogen removal line to achieve efficient ammonia nitrogen removal and water quality compliance.

Intelligent Control & Robust Operation

Equipped with an intelligent control unit, the equipment can real-time monitor oxidation-reduction potential (ORP) and ammonia nitrogen concentration, and automatically optimize key parameters such as current density to cope with fluctuations in leachate water quality. It features rapid startup and shutdown, stable operation, and can adapt to continuous or intermittent treatment demands, realizing convenient on-demand operation. Its core process of “no external carbon source or chemical lye required” greatly simplifies the chemical dosing system and sludge treatment facilities, significantly reducing the complexity of daily operations and long-term comprehensive costs.

Our electrochemical wastewater treatment equipment provides solid waste disposal enterprises and operators facing the challenge of mature high-ammonia-nitrogen landfill leachate treatment with an innovative, high-efficiency, cost-effective, intensive, and flexibly deployable nitrogen removal option. It serves as a key technological tool to overcome the nitrogen removal difficulties of mature leachate, achieve stable compliance with discharge standards, and reduce the overall operational costs.

Landfill leachate wastewater treatment process

Landfill leachate wastewater

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EC Electrochemical Oxidation Equipment
(Equalization tank homogenization; coagulation sedimentation for partial removal of heavy metals and suspended solids)

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CQDHX SERIES EO Electrochemical Oxidation Equipment
(Efficiently breaks down humic acid macromolecular structures; achieves thorough mineralization of refractory pollutants)

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Emission

Treatment Capacity of Electrochemical Oxidation Wastewater Treatment Equipment