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

Spl pengolahan limbah cair secara fisik

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Nur Istianah, S.T.,M.T.,M.Eng_SPL_THP_UB

semester genap TA 2014/2015

PENGOLAHAN LIMBAH

2

3

Pengolahan Limbah (secara fisik)

Pri

nsi

p D

asa

r:

4

Teknologi Pemisahan

Flate

Spiral

Hollow

Membran

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

Tampak bagian dalam clarifier

Scraper

Influent well

Weir untuk effluent

Pengumpul sludge

Air

masuk

Koagulan

Air bersih

Lumpur

Bagian Sedimentasi

Bagian Flokulasi

Bagian Koagulasi

IPA tipe Plate Settler clarifierIPA tipe Plate Settler clarifier

TERIMA KASIH