PARAMETER – PARAMETER UNTUK AIR UTILITAS

a. Untuk air pendingin

Sumber: anonym, cooling water from Brawijaya University (

https://www.academia.edu/5206679/Air_Pendingin_Cooling_Water_Makalah_Disusun_untuk_memenuhi_tugas_mata_kuliah_Utilitas)

b. Air umpan boiler

Sumber: http://annesniwa.blogspot.co.id/2014/09/pengilahan-air-untuk-boiler-ketel-uap.html

c. Air minum

Sumber: from KepMenKes No. 907/MENKES/SK/VII/2002

Tabel 1. Syarat dan ketentuan air untuk keperluan plant utility

Parameter Air pendingin[1] Air umpan boiler[2] Air minum[3]

pH 6.5 – 7.5 (netral) 10.5 – 11.5 (vapor) 6.5 – 8.58 – 9 (condensate)

Konduktivitas (mhos/cm) < 1000 5000 undefiniedSuspended solid < 10 - 1000

Total hardness (ppm as CaCO3) < 100 - < 500Total iron (ppm as Fe) < 1 2 (max) 0.3

Residual chlorine (ppm as Cl2) 0.5 – 1.0 - 5Silicate (ppm as SiO2) < 150 150 (max) -

Turbiditas (NTU) < 10 - -Total chromate (ppm as CrO4) 1.5 – 2.5 - -

Sulphite residual (ppm) 20.50 -

Sumber: [1], [2] dan [3]