Point-of-use Wastewater Treatment with OTTELIA

Efficient Particle Removal from Semiconductor Process Wastewater

A large, rectangular industrial machine for point-of-use wastewater treatment for the semiconductor industry stands in front of a purple background, with several transparent panels providing a glimpse of the complex technology inside.

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OTTELIA: Innovative Wastewater Treatment for Clean Production Processes

Efficient. Reliable. Clean.

OTTELIA is an innovative solution for removing silicon dioxide (SiO2) particles from process wastewater - especially from wet-chemical cleaning and etching processes in semiconductor manufacturing.

The system reliably removes even the finest particles from the wastewater and thus creates the conditions for safe recycling of the treated water for reuse in waste gas purification.

Like its plant role model, the tropical aquatic plant also stands for Ottelia for purity, adaptability and the natural ability to purify water. With its submerged leaves, it contributes to the self-purification of bodies of water in nature – a principle that OTTELIA technologically. The name therefore symbolizes the aspiration to return water to the cycle in an intelligent and sustainable way.

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Resource-Efficient Wastewater Treatment for a Clean Future

OTTELIA combines compact design, high separation performance and individual scalability - for maximum efficiency and resource conservation.

Technology that Convinces

In the multi-stage cleaning process, particles >15 μm are first efficiently separated in the lamella lamella separator. A fine filter system then removes smaller residual particles. The treated water can be fed directly back into the abatement system - for sustainable recycling in the production process. The solids are safely collected in the sludge tank and sent for disposal.

Scalable. Pre-assembled. Ready for Operation.

The tank volume of OTTELIA can be flexibly adapted to different water volumes - for maximum process reliability in a wide range of applications.

The system is pre-assembled at the DAS site, quality-tested and installed directly at the customer's premises as a plug-and-play system: quickly, reliably and economically.

Maximum Efficiency for Your Wastewater Treatment

Benefit from:

Adaptable to different volume flows and particle sizes
Compact plug-and-play unit
High system efficiency enables direct water reuse
Guaranteed process reliability
Integrated control and measurement technology
Reduced fresh water consumption and waste water volume
Contribution to sustainable water management in semiconductor production

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OTTELIA at a Glance

Product Overview

The image shows a modern, freestanding point-of-use wastewater treatment system from OTTELIA, which is used in the semiconductor industry, with a transparent housing that provides a view of the complex mechanical and electronic components.

Perfectly Fitting Combinations for Clean Water

OTTELIA is based on an intelligent combination of sedimentation and filtration, which is adapted to the respective wastewater composition. Depending on the particle size and the process parameters, the following processes and system components are used:

Mixing and expansion tank
Lamella lamella separator with clear water overflow for effective solids sedimentation
Sludge tank & waste water tank
Pumps and precise measurement technology
Control cabinet & network switch for integration into the control system
Flexible, redundant filter solutions such as:
Cartridge filters, cartridge filters, bag filters, membrane filters
Optional: Polymer dosing

Functional Principle of Wastewater Treatment with OTTELIA

OTTELIA consists of high-quality, reliably integrated components based on an intelligent combination of sedimentation and filtration. In the multi-stage cleaning process, particles >15 µm are first efficiently separated in the lamella lamella separator. A fine filter system then removes smaller residual particles. The treated water can be fed directly back into the abatement system - for sustainable recycling in the production process. The solids are then safely collected in the sludge tank and disposed of.

The wastewater treatment system OTTELIA is designed to adapt individually to the needs of our customers and the respective wastewater composition. All system modules - including the tank volume - are scalable and can be optimized for different wastewater volumes. This allows OTTELIA can be used flexibly at various global production sites and can be installed quickly, securely and cost-effectively on site as a plug-and-play system.

Particle removal and water treatment machines stand side by side, with detailed labels illustrating the particle removal and water recycling process.

Flexible Integration & Strong in Water Reuse

OTTELIA can be flexibly integrated - both downstream of DAS exhaust gas treatment systems and UPTIMIUM or EDC PLUS as well as behind abatements from other manufacturers. It also enables almost complete reuse of the abatement wastewater produced. The fine SiO₂ particles are reliably removed, enabling almost complete reuse of the resulting abatement wastewater.

The result: significantly reduced fresh water consumption and thus lower operating costs, support in meeting company-wide ESG targets through more sustainable water management.