A DUE Pure Water: Purification Systems for Process Water
Water Treatment: a need in the beverage industry The main raw material for the preparation of all drinks is water.
Therefore, it is necessary to have high quantities of pure water of suitable quality available.
Adue S.p.a.
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Water Treatment: a need in the beverage industry
Water treatment allows water sources to be used for production purposes that would otherwise not be useable because not potable or of not constant quality in time or in different production sites (raw water from well, surface waters, sea water, city water).
Adue S.p.a.
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Water Treatment : basic processes Basic water treatment consists of four stages: 1) Water Chlorination: chemical disinfection of water through dosing of Sodium hypochlorite. Hypochlorous acid (Available Chlorine) which arises has a high disinfectant activity as it is able to penetrate easily through the cell membrane of the bacterial cell. 2) Prefiltering Process: suspended solids, colloids, iron and manganese are removed by means of suitable filtering beds.
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Water Treatment : basic processes 3) Specification finishing Process: adsorption on activated carbon, followed by polishing cartridge filtration, removes, as well as chlorine, organic substances that may alter odour and / or flavour. Depending on the characteristics of the water to be treated, it may be necessary a Reverse Osmosis desalinization, with which salts are removed through semipermeable membranes.
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Water Treatment : basic processes 4) Final disinfection process: ultraviolet disinfection (UV) is used for the inactivation of pathogens and viruses transmitted by water. It also ensures and improves the organoleptic qualities of water, since bacteria produce compounds which give an unpleasant odour and flavour.
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Water Treatment: special processes Special water treatment according to the customer’s needs: Water deaeration: for “sensitive” products like non-alcoholic beer it’s advisable to low the residual oxygen, in order to prevent fermentation processes and/or product oxidation. Ultrafiltration as pre filtering system: Used in Beverage & Food on surface waters Ozone treatment as final disinfection process: Ozone treatment is also suitable for disinfection from microorganisms, because of its great reactivity and the total absence of chemical residues deriving from its use.
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Water Treatment : A DUE’s know-how A DUE since 1967 designs and manufactures process turn-key plants for CSD and Still drinks production, with final beverage output ranging between 10.000 and 240.000 l/h.
In 2010 A DUE decided to broaden its portfolio by adding to the production range the water treatment solutions to further meet the needs of the beverage processing industry.
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Water Treatment : A DUE’s main installations Since then A DUE has manufactured a series of water treatment plants with working capacity ranging between 20.000 and 75.000 l/h, installed in Europe, Africa, Asia and South America.
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Water Treatment : A DUE’s example of installations
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Water Treatment : A DUE’s plants Tailored WTP, designed by combining technology and modularity depending on the initial characteristics of the water and the final quality desired.
Fully automatic and equipped with all the control instruments, reduced maintenance times and costs.
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Water Treatment: typical CSD producer requirements
Raw water CHLORINATION or treated water POST CHLORINATION; excess chlorine must subsequently be removed through chemical neutralization or filtration on activated carbon.
DUAL MEDIA FILTRATION (Quartzite + Anthracite)
Reverse Osmosis treatment
FILTRATION BY ACTIVATED CARBON + CARTRIDGE FILTERS (POLISHER)
U.V. (+ MICROBIOLOGICAL FILTERS when water is bottled)
Water Treatment: a typical installation
Water Treatment: Technical Data
Capacity
from 1 to 100 mc/h
Contact Material
stainless steel AISI 304 - 316
Control System
PLC Siemens
Water Treatment: some water reference values RAW WATER CHARACTERISTICS - EXAMPLE Parameter Value Unit of Measure TURBIDITY 0,45 NTU TOTAL ALKALINITY 77,3 mg / l CaCO3 TOTAL HARDNESS 83,8 mg / l CaCO3 SODIUM 10,47 mg / l Na POTASSIUM 0 mg / l K CALCIUM 22,3 mg / l Ca MAGNESIUM 6,69 mg / l Mg BICARBONATES 94,27 mg / l HCO3 CHLORIDE 11,57 mg / l Cl SULPHATE 5,14 mg / l SO4 NITRATE 8,34 mg / l NO3 AMMONIUM < 0,001 mg / l NH4 FLUORIDE 0,21 µg / l F TOTAL IRON 0,03 mg / l Fe MANGANESE 0,1 mg / l Mn T. D. S. 164,03 mg / l CONDUCTIVITY 200 µS/cm pH VALUE 6,73 pH unit
Water Treatment: some water reference values TREATED WATER CHARACTERISTICS (CSD LINE) - EXAMPLE Parameter Value Unit of Measure TURBIDITY < 0,3 NTU TOTAL ALKALINITY < 85 mg / l CaCO3 RESIDUAL ACTIVE CHLORINE none mg / l Cl2
TREATED WATER CHARACTERISTICS (WATER LINE) - EXAMPLE Parameter Value Unit of Measure TURBIDITY < 0,3 NTU RESIDUAL ACTIVE CHLORINE none mg / l Cl2 TOTAL HARDNESS 0,2 °F
TREATED WATER CHARACTERISTICS (UTILITIES LINE) EXAMPLE Parameter Value Unit of Measure TURBIDITY < 0,3 NTU RESIDUAL ACTIVE CHLORINE none mg / l Cl2
Water Treatment: A DUE Reverse Osmosis System
Water Treatment: ROSA (Reverse Osmosis System Analysis)
A DUE thank you for your attention
