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Packaged wastewater treatment plant for the US Department of Defence base in Germany

ClearFox® FBBR and lamella clarifier as packaged wastewater treatment plant

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ClearFox FBBR for department of defence
ClearFox lamella clarifier for department of defence
ClearFox 60 Hz power supply for packaged wastewater treatment plant

Project

Packaged wastewater treatment plant

Data

2022

Location

Various

Size

15 m³/day

Modules

Characteristics

  • Rapid order processing
  • Reliable cleaning performance
  • Wastewater treatment for direct discharge

SITUATION

The US Department of Defence requested a packaged wastewater treatment plant. At various locations, 15 cubic metres of municipal wastewater are produced daily, which the ministry would like to treat for direct discharge. The responsible persons wanted a reliable and biological wastewater treatment in a sea container. The Department of Defence was explicitly looking for an experienced and reliable company in the field of wastewater treatment. With PPU Umwelttechnik GmbH, they found the ideal partner for this.

PROBLEM

The first challenge in this project was to achieve the required discharge values. The mobile wastewater treatment plant was to reduce the COD from 800 mg/l to 90 mg/l and the BOD from 400 mg/l to 20 mg/l. In addition, there is nitrogen and phosphorus in the wastewater, which must not flow into the environment without treatment. Another challenge was the bureaucratic handling of the project. The Ministry of Defence insisted on complete documentation with uncomplicated processing at the same time. In addition, a power supply with a frequency of 50 Hz is mandatory in Germany. However, the Department of Defence required a 60 Hz power supply.

SOLUTION

For this project, PPU Umwelttechnik GmbH offered the Department of Defence a complete solution installed in a 20-foot HC ISO sea container. At the beginning, the wastewater flows into a collection tank where the first coarse solids can settle. These must not get into the biological reactor, as they could otherwise disturb the biology. Since the wastewater flows very irregularly into the collection tank, it then enters a buffer tank that balances out the inflow peaks. The wastewater then flows evenly into the ClearFox® FBBR, which treats it biologically.

The microorganisms separate the dissolved substances from the clear water. This produces an activated sludge, which partially returns the packaged wastewater treatment plant to the buffer tank for further wastewater treatment. To separate the clear water completely from the sludge, a connected lamella clarifier settles it by gravity. Part of the activated sludge remains in the fixed bed reactor to ensure further biological wastewater treatment. The collected sludge has to be disposed of at regular intervals by the US Department of Defence base.

For this project, PPU Umwelttechnik GmbH took over the complete planning, the production of the wastewater treatment plant, the delivery as well as the installation and instruction of the staff on site. As the company has already realised numerous projects in countries all over the world, the handling of the project went smoothly. PPU Umwelttechnik GmbH was thus able to fulfil all the customer’s wishes.

Read More about ClearFox® Projects with FBBR technology

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