Matweri kuliah tentang pengolahan limbah cair secara fisik

1. 1
Nur Istianah, S.T.,M.T.,M.Eng_SPL_THP_UB
semester genap TA 2014/2015
PENGOLAHAN LIMBAH

2. 2
Pengolahan
limbah
Fisik
KimiaBiologi

3. 3
Pengolahan Limbah (secara fisik)
PrinsipDasar:
Menggunakan gaya natural
• Gravitasi
• Listrik/coulumb
• Van der waalls
Perubahan fisik
• Evaporasi
• Agglomerasi
• No chemical reaction
Teknologi pemisahan

4. 4
Teknologi Pemisahan
Pengayakan
Sedimentasi
Flotasi
Adsorpsi
Filtrasi
Membran

5. Flate
Spiral
Hollow
Membran

6. 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

7. • 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

8. Flokulasi & koagulasi
filter
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

9. LUMPUR
Bak koagulasi
(hidraulik)
koagulan Bak flokulasi
(mekanikal)
Bak
sedimentasi
Water treatment
Air baku
KONVENSIONAL
- Koagulasi
- Flokulasi
- Sedimentasi
Pada unit – unit terpisah
Air bersih

10. CLARIFIER
- KOAGULASI (1)
- FLOKULASI (2)
- SEDIMENTASI (3)
PADA SATU KOMPARTEMENT
(UNIT) Air masuk
Bahan kimia
Air
bersih
1
2
3
Lumpur

11. Tampak bagian dalam clarifier
Scraper
Influent well
Weir untuk
effluent
Pengumpul sludge

12. Air
masuk
Koagulan
Air
bersih
Lumpur
Bagian
Sedimentasi
Bagian
Flokulasi
Bagian
Koagulasi
IPA tipe Plate Settler clarifier

13. TERIMA KASIH