Date post: | 06-Aug-2015 |
Category: |
Environment |
Upload: | muhammad-luthfan |
View: | 71 times |
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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
kondensat
steam
F.Eff/05
Water treatment
primer
LUMPUR
Bak koagulasi(hidraulik)
koagulan Bak flokulasi(mekanikal)
Bak sedimentasi
Water treatmentWater treatment
Air baku
KONVENSIONALKONVENSIONAL
- KoagulasiKoagulasi
- FlokulasiFlokulasi- SedimentasiSedimentasi
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 clarifierIPA tipe Plate Settler clarifier