Task
Bäckerei Betz, a traditional Ulm bakery, is now run by the 5th generation of the Betz family. The tasty bakery products are sold in over 40 specialist stores in Ulm and the surrounding area.
Our task was to build a wastewater treatment plant to treat production and cleaning wastewater for indirect discharge into the sewer.
Design data
Preparation quantity:
- 25m3/d
Target parameters:
- Reduction COD > 80 %
- pH-neutral drain
Solution & implementation
Our advanced process for reducing the COD concentration in bakery wastewater containing fat is characterized by three key process steps.
1. class NS 7 grease separator: The first step was to install a class NS 7 grease separator with a sludge trap. This step enables the efficient removal of grease and oil from the wastewater.
2. homogenization in the stacking tank: In the second process step, the pre-treated wastewater is transferred to a stacking tank where it is homogenized. This equalizes the different composition of the wastewater from production and ensures a uniform process.
3. ALMA NeoDAF flotation plant: In the third step, the wastewater enters our ALMA NeoDAF Blue flotation plant. In this flotation plant, precipitants, flocculants and neutralizing agents are added(ALMA FLOC M). A pH-controlled process converts dissolved organic compounds into insoluble compounds and separates them from the wastewater. The flotation system is integrated into an ALMA module.
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