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DAS - Model Ottelia -Wastewater Treatment Plant
OTTELIA is an innovative solution for the removal of silicon dioxide (SiO2) particles from process wastewater – particularly from wet cleaning and etching processes in semiconductor manufacturing. The system reliably eliminates even the finest particles from wastewater, creating the conditions for safe recirculation of treated water for reuse in waste gas treatment.
By enabling direct water reuse, OTTELIA significantly reduces the demand for fresh water in cleaning processes and lowers operating costs. At the same time, it supports companies in achieving their environmental targets through sustainable resource management.
With its compact design, high separation efficiency, and scalable configuration, OTTELIA can be flexibly integrated into existing facilities – either as a solution for individual processes or as part of a comprehensive water management system.
OTTELIA consists of high-quality, process-integrated components, based on an intelligent combination of sedimentation and filtration. In the multi-stage treatment process, particles >15 µm are first efficiently separated in a lamella clarifier. A fine filtration system then removes smaller residual particles. The treated water can be directly reused in the waste gas treatment process, ensuring a sustainable closed water loop in production. Solids are safely collected in a sludge tank and disposed of properly.
The OTTELIA wastewater treatment system is designed to adapt to individual customer requirements and specific wastewater compositions. All system modules – including tank volumes – are scalable and can be optimized for varying wastewater flows. This flexibility allows OTTELIA to be deployed at diverse global production sites and installed quickly, safely, and cost-efficiently as a plug-and-play solution.
- Mixing and equalization tanks
- Lamella clarifier with clear water overflow for effective solids sedimentation
- Sludge tank & wastewater tank
- Pumps and precision instrumentation
- Control cabinet & network switch for integration into process control systems
- Flexible, redundant filtration options, such as:
- Cartridge filters
- Candle filters
- Bag filters
- Membrane filters
- Optional: polymer dosing
- Adaptable to different flow rates and particle sizes
- Compact plug-and-play unit
- High system efficiency enables direct water reuse
- Guaranteed process reliability
- Integrated control and monitoring technology
- Reduced fresh water consumption and wastewater volume
- Contribution to sustainable water management in semiconductor production