ANDRITZ provides modular plant solutions for treating sewage sludge from large municipalities.
EcoFluid BFB boilers for sewage sludge mono-incineration
Cutting-edge technology for a circular economy – utilization of sewage sludge with ANDRITZ EcoFluid boilers has a proven track record. From municipalities to megacities, ANDRITZ offers the ultimate solution for each sewage sludge mono-incineration plant.
ADVANTAGES
- Suitable for all sewage sludge qualities
- High combustion efficiency
- Low emissions
- Very compact standard design
- Short erection lead times
- Low maintenance costs
- High availability
World’s largest energetic utilization of sewage sludge in mono-incineration plant.
T-Park / Tuen Mun, Hong Kong, China.
Resource recovery and environmental safety
Mono-incineration of municipal sewage sludge is increasingly adopted in sustainable waste management. It eliminates contaminants such as PFAS, microplastics, heavy metals, and pathogens, while enabling phosphorus recovery from incineration ash – a critical, non-renewable resource.
ANDRITZ offers EcoFluid Sludge technology with two bubbling fluidized bed combustion concepts:
- Adiabatic furnace + waste heat steam generator
Optimized for smaller plants with lower fuel heat input. - Integrated combustion chamber and steam generator
Designed for large-scale installations, providing higher thermal efficiency and compact layout.
Both solutions ensure stable operation, high combustion efficiency, and compliance with stringent emission standards.
Adiabatic EcoFluid sludge boiler
3–5.5 MJ/kg / 10,000–60,000 tDS/a
Integrated EcoFluid Sludge boiler
3.5–14 MJ/kg / 50,000–120,000 tDS/a
Standardized for maximum efficiency
A key advantage of EcoFluid Sludge technology is its modular and standardized design. This approach ensures adaptability to current project requirements while remaining flexible for future market developments. Standardization simplifies decision-making, reduces complexity, and leverages decades of ANDRITZ expertise in bubbling fluidized bed technology.
Benefits of standardization:
- Cost efficiency across all phases
Modular sizing and in-house steam generator manufacturing enable high prefabrication levels, reducing lead times and erection costs. - Optimized engineering and execution
Standardized components combined with ANDRITZ’s deep value chain ensure streamlined workflows and minimal project durations. - Proven reliability
Every customer benefits from established designs and robust project management competencies.
This approach delivers predictable performance, economic viability, and scalability for both small and large installations.
Efficient and environmentally sound
EcoFluid Sludge technology is based on staged combustion, allowing precise adaptation to project-specific requirements. Primary and secondary air injection ensures complete combustion, while recirculation gas maintains constant fluidization for maximum operational safety.
Key performance highlights:
- Lowest emission levels
Proven in numerous reference plants, consistently below current regulatory limits for NOx, CO, and total organic carbon (TOC). - Future-proof design
Optimized for compliance with stricter emission standards anticipated in the coming years. - Operational reliability
Stable fluidized bed conditions and tailored combustion control deliver high efficiency and safety.
This combination of efficiency and environmental compliance makes EcoFluid Sludge a robust solution for sustainable sludge management.
Full-scope capability
Beyond combustion with EcoFluid Sludge, ANDRITZ provides all technologies required for a complete sewage sludge mono-incineration plant. This includes in-house solutions for dewatering, drying, and flue gas cleaning, as well as advanced automation and digitalization. Close collaboration with trusted sub-suppliers for key components ensures maximum disposal security and compliance with the strictest environmental standards.
Our turnkey approach delivers:
- Optimized plant economics through integrated design and proven processes.
- High reliability backed by decades of experience and strong project management.
- Future-ready solutions tailored to individual customer requirements.
Municipalities across Germany and major cities like Shanghai already rely on ANDRITZ for efficient thermal and energetic sludge utilization.
Download articles
ANDRITZ EcoFluid - Hong Kong Veolia
The world’s largest sewage sludge treatment plant was built by the Veolia Water-Leighton-John Holland joint venture in Hong Kong’s Tuen Mun district, and is operated for a period of 15 years by VW-VES (HK) Ltd, a subsidiary of Veolia Water/Veolia Environmental Services. Four EcoFluid AC Bubbling Fluidized Bed (BFB) boilers form the heart
of the power plant.
ANDRITZ EcoFluid - Hong Kong Veolia
The world’s largest sewage sludge treatment plant was built by the Veolia Water-Leighton-John Holland joint venture in Hong Kong’s Tuen Mun district, and is operated for a period of 15 years by VW-VES (HK) Ltd, a subsidiary of Veolia Water/Veolia Environmental Services. Four EcoFluid AC Bubbling Fluidized Bed (BFB) boilers form the heart
of the power plant.
PDF: 2.7 MB
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Power plant servicesSmart Power Boiler Analytics and Monitoring - BOA ENVIRONMENT & ENERGYANDRITZ TermoEnergetskaPostrojenja d.o.o.
Power plant services
ANDRITZ boiler service experts work in close cooperation with customers to improve the safety, performance, stability, availability, and efficiency of power generation equipment. With service and manufacturing centers around the world, ANDRITZ is well-positioned to offer the full support our customers need.
Smart Power Boiler Analytics and Monitoring - BOA
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ENVIRONMENT & ENERGY
Our extensive product portfolio covers a spectrum of technologies ranging from mechanical and thermal solid/liquid separation, grinding, pelletizing, pumping fluids, emission reduction technologies, carbon capture, to green hydrogen and renewable fuel production.
ANDRITZ TermoEnergetskaPostrojenja d.o.o.
ANDRITZ TermoEnergetskaPostrojenja d.o.o. – abbreviated to ANDRITZ TEP d.o.o. (limited liability company) and formerly known as Đuro Đaković TEP – is a well-established Croatian company with over 100 years’ experience in the production of boiler plants for various kinds of fuels.