Product Water Treatment

For an Internationally Operating Company in The Food Industry

Producer of delicatessen

Task

In the early years, the company only produced high quality vinegar for retail sale. A lot has happened since then: the company has has expanded continually and the product range has been extended to include ketchup, pasta - and BBQ - sauces, as well as mustard. The company needed a water treatment plant for a new production site and commissioned ATN with planning and manufacturing.

Targets/Challenges

Customer initially only wanted a softening plant
Vinegar and fruit acids are flavour carriers - Carbonates not removed by softening neutralise these flavour carriers which might lead to a considerable change in taste of the products
No softening but desalination - installation of a reverse osmosis plant
Chlorine in the public water supply is harmful to the reverse osmosis membranes - the addition of sodium bi-sulfite removes free chlorine

Special Features of the Plant

The quality of the reverse osmosis permeate is insufficient for the steam boiler - the reverse osmosis permeate of the first stage meets requirements for salt content (in the course of processing, the quantity and quality of the permeate continues to decrease)

The boiler maker, however, requested 0°dH - additional softening plant for partial flow of the boiler feed water

After the reverse osmosis, the treated water is blended with raw water oce again to achieve the desired flavour by means of the carbonate hardness

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