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Biological treatment of wastewater from vegetable oil production

ClearFox® FBBR for biological treatment of wastewater in Croatia

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ClearFox containerized biological treatment of wastewater
ClearFox biological treatment of wastewater in Croatia
ClearFox biological treatment of wastewater for vegetable oil production

Project

Biological treatment of wastewater from vegetable oil production

Data

2019

Location

Croatia

Size

120 m³/day

Modules

ClearFox® Fixed Bed Biological Container

Characteristics

Modular containerised wastewater treatment plant for quick on-site installation

SITUATION

Biological treatment of wastewater from vegetable oil production is an important step to protect the environment from pollution. A company from Croatia has specialised in the production of sunflower seed oil. The wastewater comes from two sources: On the one hand, water is a waste product of oil production, and on the other hand, a large amount of wastewater is produced during the cleaning of the production facilities. Biological treatment of wastewater is therefore an optimal solution.

PROBLEM

The challenge of this project was, on the one hand, the high volume of wastewater and, on the other hand, the high degree of pollution in the wastewater. The result of the high oil content in the wastewater was not only a high BOD and COD, but also an unbalanced ratio between carbon, nitrogen and phosphorus (C:N:P) as well as an unbalanced pH value. Biological treatment of wastewater from this industry is therefore only possible with a further treatment stage, such as flotation.

SOLUTION

The customer already had a flotation system on the company’s premises. However, as this could not fulfil the desired purification performance, he additionally decided on a ClearFox® FBBR, combined with a lamella clarifier in a 20-foot HC ISO sea container. The initial focus was on COD reduction of up to 80% – the maximum COD removal is 150 kg/day. With the fixed bed module, the plant removes oils and fats up to 95%. It regulates the pH value to 6.5 to 8.0 and reduces the C:N:P ratio to 100:10:1. The resulting sludge is separated from the clear water by a lamella clarifier. This makes the wastewater suitable for direct discharge into a receiving watercourse.

The ClearFox® fixed bed biological reactor is one of the most efficient solutions for the biological treatment of wastewater on the market. The ClearFox® team adapts the growth area of the fixed bed material to the treatment requirements. By installing the complete wastewater treatment plant in a sea container, it can be easily transported by land and sea. Because it is pre-assembled in the main factory in Bayreuth, the customer only has to assemble and connect it at the site of operation. This makes a ClearFox® wastewater treatment plant ideal for the biological treatment of wastewater from vegetable oil production.

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