The design and build of a process and wastewater treatment plant - Inlet: 900 mc/h - Case Study


Courtesy of IDRAFLOT

The client

Ferrara Food, part of the S.F.I.R. group, is a company operating in the agro-industrial sector. More specifically Ferrara Food operates within the preserved food industry, specialising in tomato processing, from fresh product to semi-finished and finished products.

Semi-finished products can be 200kg containers, or 1200kg bigbags, filled through an aseptic system, which allows preservation. Afterwards, the raw material can be processed to obtain the finished product (cans, bottles and other type of packaging available on the market).

Finished products, however, must be intended as tomato juice concentrates (at different level of concentration) and tomato cubes/pulp.

The challenge

Being new to the market, our client required a complete turn-key facility for the production of process water and the treatment of wastewater.

Our solution

Due to our extensive knowledge of the agro-industrial sector’s production cycle, VWS Italia was able to supply a turn-key plant involving three different phases of the process: the purifying, the wastewater treatment and the tomato conveyancing. All the wastewater streams produced by the production cycle, and treated by the plant, are recycled into the process to convey and wash the tomatoes, allowing a considerable water saving. A further benefit the recovery and condensation of the steam produced during the tomato processing. This step actually allows the reuse of water coming from the tomato processing, which avoids waste and optimizes the available sources.


  • Inlet: 900 mc/h
  • Year: 2009

Wastewater Parameters
Parameters Value: Flow rate 900 m3/h

  • Pop. Eq 170000 pop.eq: COD 865 mg/l
  • BOD5 476 mg/l: TDS 1500 mg/l

Treated Water Parameters
Parameters: Value

  • COD: 160 mgO2/l*
  • BOD5: 40 mgO2/g
  • TDS: 80 mg/l

Water Recycled For Tomato Conveyancing
Parameters: Value

  • Flow rate: 400 m3/h
  • COD: 100 mgO2/l*
  • BOD5: 20 mgO2/g
  • TDS: 40 mg/l

Solutions & Technologies
Raw water plant

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