We make wastewater and energy processes fit for the future.
Our Environmental Engineering
Services
We provide tailored solutions for industrial and municipal environmental engineering that are both efficient and sustainable.

WWTPs
We Design and Optimize Plants and Processes industrial and municipal Waste Water Treatment Plans. Our services include process analysis, energy optimization, aeration systems, treatment processes, secondary clarification concepts, and advanced control strategies. We focus on process stability, low operating costs, and compliance with evolving regulatory requirements. We design and optimize wastewater treatment plants that meet the latest environmental standards.
Project Development & Economic Viability: We develop and manage investment projects for wastewater treatment plants and evaluate their economic viability, including funding opportunities and regulatory requirements.
Sewage Sludge Dewatering
Every additional percentage point of dry solids content reduces transportation and disposal costs.
We develop dewatering concepts tailored to your sludge characteristics and disposal route.
Selection and optimization of centrifuges, chamber filter presses, belt filter presses, and screw presses.
- Sludge thickening and conditioning, including polymer optimization.
- Sludge thickening and conditioning, including polymer optimization.
- Automation of the Complete Sludge Dewatering Process
- Process Integration: Alignment with Downstream Drying or Incineration Processes


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Sewage Sludge Incineration
Having operated one of Germany’s largest sewage sludge incineration facilities ourselves, we bring hands-on experience to the design, operation, and optimization of mono-incineration plants.
- Combustion and Furnace Control: Maintaining stable bed and furnace temperatures while ensuring compliance with regulatory combustion conditions
- Minimizing auxiliary fuel demand through optimized calorific values and sludge blending, aligned with dewatering and drying processes.
- Energy Recovery and Heat Integration, from Steam and Power Generation to District Heating
- Flue Gas Treatment and Compliance with Emission Standards
- Increase Plant Availability by Identifying and Resolving the Causes of Deposits, Agglomeration, and Corrosion
- Phosphorus Recovery from Ash, from Strategy Development to Technology Selection
Sludge Digestion & Biogas
A wastewater treatment plant can generate more energy than it consumes. We help unlock this potential, from the digesters to the final effluent.
Optimization of anaerobic digestion and sizing of digesters, to ensure stable operation and high biogas yields.
Co-digestion of organic residues to increase biogas production. Utilization of biogas in combined heat and power (CHP) plants or upgrading to biomethane.
Heat Recovery Utilization of wastewater heat through large-scale heat pumps, for digester heating or for supply to local and district heating networks. Facility-wide heat integration to ensure that waste heat from CHP plants, incineration, and wastewater is utilized wherever it is needed.


Shape Sustainable Solutions with Us
SEE Schmittel Environmental Engineering delivers innovative solutions for the challenges of environmental technology. Benefit from our expertise and practical experience.