Studentenwerk Frankfurt - Treatment of greasy kitchen wastewater - Case Study
In many local authorities, the limit for lipophilic substances has been tightened from 250 mg/l to 100 mg/l. In such cases, a grease separator is not sufficient to ensure reliable adherence to this limit value.
Plant description
The kitchen wastewater of the canteen is discharged via the kitchen's floor channels, and through the wastewater inlet to a curved hydro sieve, which separates out coarse solids down to a size of 1.5 mm.
The kitchen wastewater, now free from solids, then runs through a test section where pH and temperature are measured. The main stream of the kitchen wastewater is buffered and stored in a pressure-tight integrator. Potential system overloads and endangerment of all subsequent stages are prevented by the interception of wastewater load peaks.
The wastewater is pumped out of the integrator into two fermenter lines with two fermenters. Here, the grease in the wastewater is broken down by specialised bacteria. Both fermenter lines operate separately and are completely independent in their performance, to ensure greater operational reliability. During the individual process steps, which are tailored to the degradation process, the wastewater remains in the fermenters until the required level of degradation is achieved.
Following treatment, the wastewater is discharged into the sewage system by means of a pumping unit. An aftertreatment for pH regulation is not required with this system. No chemicals or other additives are used. No odours are generated.
Performance data
- Volume of wastewater:
- Up to 5,000 l/day
- Up to 500 meals/day
- Output: Approx. 2m³/day per fermenter line
- Tank design: Plastic (PP)
Related articles
-
A full service, stress free package of benefits
Handing over every aspect of wastewater plant management to the experts is a particularly interesting proposition for dairies where changes in production are an everyday occurrence. It makes managing ...
-
A Quick Solution: Modular Wastewater Treatment - Case Study
Rust corrodes materials and may lead to impurities. As a result, there is a demand across most sectors for components that are protected against corrosion. Cantin SA, headquartered in Domdidier in ...
-
Greiwing logistics for you - Wastewater treatment in the new logistics centre - Case Study
In July 2012, Greiwing logistics for you GmbH opened an new logistics centre in Leipheim, Bavaria. The new logistics centre includes a workshop area with cleaning facilities for tank and silo ...
-
Givaudan - Continuous wastewater neutralisation - Case Study
Givaudan is the global market leader in the field of flavours and fragrances, with headquarters in Switzerland. At its German production site in Dortmund, it produces and sells flavourings and ...
Customer comments
No comments were found for Studentenwerk Frankfurt - Treatment of greasy kitchen wastewater - Case Study. Be the first to comment!