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MATERI KULIAH 9 REKAYASA BIOPROSES Dosen: Ir. Sri Sumarsih, MP.

BIOREMEDIASI AIR

BIOFILTRASI AIR LIMBAH

PERCOLATING FILTER (FILTER PENAMPISAN) ,terdapat biofilm dari bakteri) , pZoogloea

ADF / ALTERNATING DOUBLE FILTRATION (SARINGAN GANDA)

DIRECT DOUBLE FILTRATION (SARINGAN BERGANDA LANGSUNG)

TRICKLING FILTER, terdapat biofilm

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KOMBINASI SOLID STATE DAN SUBMERGED

BIOFILTRASI

BIOREACTOR

1. Hatch2. Packed bed3. Liquid/submerged bioreactor4. Outlet kultur cair5. Sirkulasi kultur cair5. S u s u u c6. Inlet gas7. OUTlet gas

Sistem biofiltrasi ganda

1. Compressor, 2. Vessel untuk degradasi kontaminan, 3. valve, 4. Volumetric flow rate, 5. Bagian berudara, 6. Biofilter, 5. 7. Tempat sampling, 8. Bagian terendam

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PILOT PLANT PENANGANAN LIMBAH CAIR PADA BIOREAKTOR BIO-NEST (anaerobik) DAN EMMC (aerobik) DAN

SISTEM LAGOON

Existing 12”PVC waste water lineTree

Lagoon

Concrete utility box

8”PVC waste water lineTree

1. Equalization and Settling tank2. First Anaerobic Bio-nest tank3 Second Anaerobic Bio nest tank

2

65

4

3

1

3. Second Anaerobic Bio-nest tank4. Intermediate Holding Tank5. Aerobic EMMC (Entrapped

Mixed Microbial Cell)Tank6. Effluent Reservoir

Main Road

Bio-nest: 2x10 m3

EMMC: 3,8 m3

PRIMARY SETTLING/EQUALIZATION TANK

Outlet for influent of Bionest tank

Bionest tank

Inlet of dairy wastewater

Overflow

Submerged pump

Outlet for sludge management

Compartment

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BIO-NEST REACTOR

Manway

Outlet(Sampling port)

Vent for gas collection

Safety valve

( p g p )

Sampling port

Bio-nest Media

Bio-nest Media

Proses anaerobik

Influent distributor

Inlet for waste water Outlet for sludge management/sampling

anaerobik

Proses anaerobik

Overflow

Inlet for Bio-nest effluent

Outlet for EMMC influent

Anaerobically treated waste water distributor

Outlet for wastewater

INTERMEDIATE HOLDING TANK OF BIO-NEST INFLUENT

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EMMC REACTOR

Proses aerobik

Cover

aerobik

EMMC carrier

outletEffluent

Influent

Air blower

Air inject outlet 2”

Air diffuser

START UP & OPERASI BIO-NEST

Bionest diberi inokulum lumpur digester anaerobik,

Parameter Primary Effluent

Bio-nest 1 Effluent

Bionest 2 Effluent

Removal (%)

KINERJA

diaklimatisasi selama 2 minggu pada suhu ambient Start up dengan OLR (organic loading rate) 1,5 g/l/d

TCOD, mg/l 3178 1695 779 75.5

SCOD, mg/l 1207 596 443.3 63.3

Biogas, l/d N/A 0.64 0.15 N/A

Methane, % N/A 63.7 N/A N/A

KINERJA BIO-NEST

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DEFOSFATASI DAN DENITRIFIKASIDefosfatasi untuk menghilangkan fosfat, Denitrifikasi untuk menghilangkan nitrat

Tipe operasi

Proses aerobik: N-organik atau N-amonium dioksidasi menjadi nitratProses anaerobik: Nitrat diubah menjadi gas N2O dan gas N2

SISTEM SBR (SEQUENCING BATCH REACTOR)

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Parameter Influent Effluent Reduction (%)

TS (%) 1.053 0.237 77.5

TVS (%) 0.540 0.016 97.0

TSS (%) 0.766 0.001 99.9

TVSS (%) 0.442 0.004 99.1

COD ( /L) 8800 226 97 4

KINERJA SBR

COD (mg/L) 8800 226 97.4

BOD (mg/L) 3660 0 100

Turbidity (FTU) 2175 120 94.5

TEKNOLOGI HILIR: PENGENDAPAN FOSFAT

Theory: Magnesium acts as a coagulant to settle out phosphorus.

How it Works: Magnesium, ammonium and phosphate ions when at a pH of 7 to 11 will combine to form Struvite (MgNH PO *6 H O)(MgNH4PO4*6 H2O)

Removal Efficiency: 90% reduction in SP from a swine anaerobic treatment lagoon in NC

Anaerobic Digester

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CONE SHAPED FLUIDIZED BED PHOSPHORUS CRYSTALLIZER

Kristal Struvite

Crystallizer Cone

M Di l i C

Treated Effluent

Fluidized-Bed Struvite (MgNH4PO4) Crystallizer

Mg Dissolving Cone (optional)

Anhydrous AAmmonia

Mg

Wastewater In

Harvested Struvite4-20-0.25

Pilot Scale Crystallizer2 gpm