UNIT PRODUKSI DALAM SISTEM PENYEDIAAN AIR MINUM PDF

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Summary

 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 𝑄 𝑣ℎ = vh increases if water depth (H) decreases Causing re-entrainmen...

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 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...