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3
Pengolahan Limbah (secara fisik)
Pri
ns
ip D
as
ar:
Menggunakan gaya natural
• Gravitasi
• Listrik/coulumb
• Van der waalls
Perubahan fisik
• Evaporasi
• Agglomerasi
• No chemical reaction
Teknologi pemisahan
3 steps of waste water treatment
PRIMARY SECONDARY TERTIARY
PURPOSE:
To Filter the
solid waste
PURPOSE :
To Eliminate
BOD
PURPOSE :
To get the
clean water
Methods:
-Oxidation
-Using activated
sludge process
Methods :
- discard the
poisonous organic
compounds, hard
metal, bacterias
Methods:
-Filtration
-Sedimentation
• Primary Treatment
(Reduce Solids 50-60%, BOD 30-50%)
Bar screens, Comminutor, Grit chamber (Settling tank)
• Secondary Treatment
(Solids 85-95%, BOD 80-95%)
Trickling filter, Activated sludge, Water treatment ponds
• Advanced Treatment
(Solids ~100%, BOD ~99%)
Land Application, Coagulation-sedimentation,
Adsorption, Electrodialysis
Major Stages of Treatment
Flokulasi & koagulasifilter
Tangki air
bersih
Cooling tower
Alat penukar panas
Boiler Alat penukar
panas
Softener
Praheater
Air pedingin
Air
pembangkit
steam
Air proses
Limbah
cair
Air sanitasi
Cl2
Air baku
Tangki penampung
Blow down
sludge
Koagulan & flokulan
Bagan alir sistem
pengolahan air industri
kondensa
t
stea
m
F.Eff/05
Water
treatment
primer
LUMPUR
Bak koagulasi
(hidraulik)
koagulan Bak flokulasi
(mekanikal)
Bak
sedimentasi
Water treatment
Air baku
KONVENSIONAL
- Koagulasi
- Flokulasi
- Sedimentasi
Pada unit – unit terpisah
Air bersih
CLARIFIER
- KOAGULASI (1)
- FLOKULASI (2)
- SEDIMENTASI (3)
PADA SATU KOMPARTEMENT
(UNIT)Air masuk
Bahan kimia
Air
bersih
1
2
3
Lumpur
Air
masuk
Koagulan
Air
bersih
Lumpur
Bagian
Sedimentasi
Bagian
Flokulasi
Bagian
Koagulasi
IPA tipe Plate Settler clarifier