Atlas Copco ER S-1, Инструкция, Страница: 22 / 40

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6.6. Recovery water requirements for open water circuits
In open, non-recirculation water circuits, the main problems that are usually encountered relate to deposit control, corrosion
control and microbiological growth control. To minimize these problems, the water should meet a number of requirements.
Please contact Atlas Copco in case of doubt.
Recommended maxima (mg/l) Closed water circuit Open water circuit
Chloride (Cl
-
) < 600 < 150
Sulphate (SO4
-
) < 400 < 250
Total solids < 3000 < 750
Suspended solids (as SiO
2
) < 10 < 10
Free chlorine (Cl
2
) < 4 < 2
Ammonia (NH
4+
) < 0.5 < 0.5
Copper < 0.5 < 0.5
Iron < 0.2 < 0.2
Manganese < 0.1 <0.1
Oxygen < 3 < 3
Carbonate hardness (as CaCO
3
) 50-1000 50-500
Organics ( KMnO
4
Consumption) < 25 < 10