The Fürstlich Castell’sches Domänenamt Winery near Würzburg, Germany wanted to modernise its existing wastewater treatment plant. This consisted of an aging SBR system. The winery planned to dismantle it step by step and replace it with a ClearFox® containerised wastewater treatment plant with fixed-bed reactors. The winery Castell wants to discharge the treated wastewater into the municipal wastewater treatment plant with reliable treatment performance.
Over a period of one month, PPU took 13 wastewater samples and analysed them in the company’s own laboratory with regard to their contaminant load. They found an average COD of 6,600 mg/l, while over 10,000 mg/l were reached at the peak. The BOD5 was also around 3,500 mg/l, and the ClearFox® team also determined the pH value and the nitrogen content. To comply with the required indirect discharge values, the COD must be constantly below 600 mg/l and the BOD5 below 300 mg/l.
Since the grape harvest is seasonal, the winery Castell produces different amounts of wastewater. During the harvest, the amount of wastewater is between 35 and 45 m³ per day. Afterwards, the company concentrates on the production of ice wine. Until Christmas, therefore, about 10 to 15 m³ of wastewater are produced per day. The containerised wastewater treatment plant for the winery must therefore be able to compensate for the fluctuating wastewater flows.
To begin with, the ClearFox® team visited the winery on site to discuss exact details and plan the dismantling of the old system. The new system consists of a drum screen, an aerated buffer, ClearFox® FBBR, a ClearFox® lamella clarifier and a sludge storage tank. In addition, the engineers offered a dosing device for pH adjustment, an area for technology and pipe trace heating.
At the beginning, a drum screen filters all coarse components such as small branches, cores, or shell residues out of the wastewater. Then the wastewater flows into a buffer, which mixes it with aeration. There, a small biological treatment already takes place. From the buffer, the wastewater flows into the fixed-bed reactor. This reactor reduces the COD and BOD5 to the required tenth by using microorganisms. After a ClearFox® lamella clarifier separates the clearwater from the sludge, the latter flows into a sludge storage tank. An integrated aeration system prevents thickening at intervals and thus facilitates extraction.
The winery Castell opted for the ClearFox® solution with fixed-bed reactor, as it compensates for the fluctuating inflows much better than the existing SBR process. Even with varying dirt loads, the microorganisms treat the wastewater reliably. For this project, the ClearFox® team took over the complete planning of the project, the construction of the wastewater treatment plant, the delivery, the installation and commissioning on site and the training of the employees.
Yes, the ClearFox® container wastewater treatment plants are versatile and can be individually adapted to the requirements of different industries. We analyze the specific local conditions, such as wastewater volume, pollutant load and seasonal fluctuations, in order to develop a tailor-made solution.
The ClearFox® systems, especially those with fixed bed reactors, are specially designed to compensate for fluctuations in the amount and load of wastewater. An aerated buffer ensures that the wastewater is transported evenly, thus guaranteeing reliable cleaning performance.
Yes, ClearFox® container wastewater treatment plants are ideal for seasonal operations as they are modular and can be scaled or deployed mobile as needed.
Microorganisms are the heart of the cleaning process. They biologically break down the organic contaminants in the wastewater and thus reduce the COD and BOD5 to the desired values.
After installation and commissioning, we offer comprehensive training for operating personnel. We explain how the system works, how to carry out maintenance work and how to monitor wastewater parameters. This way we ensure that the system is operated optimally.
