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Industrial Case Studies

Bongrain, Sedlcany - Czech Republic


Bongrain is focused on cheese and dairy specialities and is one of the world's foremost processors of milk.

Key figures

A treatment capacity of 800 m3/d
The 4th largest cheese producer in the world
77 production sites in 26 countries

Food & Beverage

The food industry is faced with wide range of demands in the health, economic and environmental sectors.

View our water solutions for the food & beverage  industries


Our Client

Bongrain collects more than 3 billion litres of milk for its activities.
The Group is the 4th largest cheese producer in the world, with 77 production sites in 26 countries.

Client's Needs

The client wanted to improve the treatment efficiency of the existing industrial wastewater pre-treatment plant to maintain the effluent standard requirements.

Our Solution

Veolia Water Technologies offered a "turnkey" design & build solution in order to improve the efficiency of the existing industrial wastewater pre-treatment plant.
 

Solutions & Technologies

Veolia Water Technologies refurbished the existing industrial wastewater pre-treatment plant to attain a treatment capacity of 800 m3/d.
The project covered both the wastewater and sludge treatment lines and includes the installation of:

  • Buffer tanks
  • Flotation unit
  • Floated sludge treatment


Technical Data

Design capacity: 800 m3/d

Pre-treatment

  • Screening, mesh spacing 10 mm
  • Buffer tank, 2 x 150 m3

Flotation step

  • Flocculation tank with agitator, operating volume 6 m3
  • Dissolved Air Flotation(DAF) unit, flow 40 m3/h

Floated sludge treatment

  • Floated sludge storage tank, volume 77 m3
  • Intermediary tank with polymer dosing, volume 1.5 m3
  • Dewatering table, capacity 5 m3/h
  • Dewatered sludge storage tank, 50 m3


Results

 

Wastewater characteristics

Process guarantees

COD: 2,829 mg/lCOD? 1,625 mg/l
BOD5: 2,114 mg/lBOD5? 875 mg/l
SS: 640 mg/lSS? 400 mg/l
N-NH4: 15 mg/lN-NH4? 21 mg/l
NTotal: 65 mg/lNTotal? 62 mg/l
PTotal: 19 mg/lPTotal? 3.5 mg/l