UNIT PRODUKSI DALAM SISTEM PENYEDIAAN AI

 Pengolahan tidak lengkap
(sebagian) pengolahan
kimia atau bakteriologis

Titik lokasi pengambilan air baku dari sumber air yang
selanjutnya di pompa dan dialirkan menuju instalasi
pengolahan air bersih

Bak Prasedimentasi

L

H
W

�ℎ =

�� =

�
��

8

vh increases if water depth (H) decreases

�� − ��
���

��

Causing re-entrainment/scouring

ρp = specific mass of particle (kg/m3)
ρf = specific mass of water (kg/m3)
f = proportionality constant (0.04 for unigranular sand, 0.06 for more
sticky
dp = diameter of particle (m)
g = acceleration of earth (9.81 m/s2)
λ = a function of the Reynold number (0.03)

�0 =

�
��

v0 = the surface loading (to be
assumed at 8.3 to 11.1 m/s)

Theoretical predicted settling
velocity

To prevent bottom
scour, vh < vs
One of the dimension W, H, L must be determined. Then the two remaining
dimensions are fixed by relation between vh and v0