Further applications

FUCHS aerators, mixers and agitators are known for exceptional quality and durability. In addition to these specialised components, FUCHS has also been offering a range of high-quality system solutions for wastewater treatment and sludge treatment for over 40 years. These include, among others, the neutralisation of alkaline wastewater, the cleaning of stormwater retention basins, and fixed-bed systems for carbon removal and nitrification.

Neutralisation of Alkaline Wastewater

Alkaline wastewater is generated in many industrial sectors and must be neutralised before being discharged into a biological treatment plant or the sewer system.

Examples:

• Wastewater from the textile industry
• Laundry wastewater
• Wastewater from calcium silicate brick works

Neutralisation with carbon dioxide from flue gas is an environmentally friendly and cost-effective process. In many industrial plants, the required flue gas is available free of charge from the company's own heating systems or power plants.

The FUCHS Centrox diffuser was developed specifically for this application, enabling the flue gas to be introduced directly into the alkaline wastewater as fine bubbles, without the need for an additional blower.

Learn more about the FUCHS Centrox diffuser

Cleaning of Stormwater Retention Basins

Stormwater retention basins or overflow basins store additional wastewater generated during heavy rainfall. The settleable substances contained in this wastewater accumulate as sludge on the bottom of the basin. To prevent shock loads on downstream treatment plants, the wastewater must be circulated in order to resuspend deposited organic solids and discharge them evenly.

The FUCHS TurboStar® submersible mixer is used in stormwater retention basins to resuspend settled solids and for circulation and mixing. It has a simple design, is highly robust, and is particularly resistant to clogging due to the special shape of its propeller. Other applications for FUCHS submersible mixers include buffer tanks, batch-operated thickeners, and smaller sludge silos.

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Fixed-Bed Systems

FUCHS fixed-bed systems with fully submerged and aerated fixed beds are powerful and cost-effective systems for biological wastewater treatment. They are used as a complete biological treatment stage with or without nitrogen oxidation, as a nitrification stage within a multi-stage process, or as a downstream stage for residual nitrification. They are suitable both for new installations and for retrofitting existing treatment plants. They offer particular advantages when combined with wastewater lagoons.

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