006 biofiltration_bo mon_ xu_ ly_ nuoc_ thai_ sinh_ hoat

8/14/2019 006 Biofiltration_Bo Mon_ Xu_ Ly_ Nuoc_ Thai_ Sinh_ Hoat

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BIOFILTERS


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The fixed biomass

BIOFILM

Creation on amedia

BIOMASS

Activated

Sludge

Free Fixed

On a

media


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Biofilter principle

Media beads

BiomassSuspended

growth

free Fixed

Biofilter

Media

Influent water

Treated water


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Location in the Treatment Line

Primary

Activated

Sludge Clarification

Primary Biofiltres


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Why BAF ?: BAF Choice

Why choose the BAF technology ?

Integration into the existing site

Compact

Customer choice

One stage process


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Why BAF ? : Footprint

1500000 PE Biostyr

1500000 PE Activated sludge


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Why BAF ? : Architectural Plants


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Why BAF ? : Architectural Plants


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Why BAF ? : AVANTAGES

High Removal Efficiency

Quick Start Up and Quick Adptation to the load

Seasonal Flow treatment

Biomass Kept in the Tank : Secure Removal Efficiency

No problem linked to the settling capacity of the sludge

No bulking

MODULARITY

High load

Adding more units (Easy upgrade)

Reliability

COMPACTNESS

Low surface of water Plant Covered


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Why BAF ? : INCONVENIENTS

Short Residence Time

No buffer Effects : Low capacity for very high peak hour conditions

Higher Soluble Residual

Low hydrolysis of the particulates Pollutants

Fresh Sludge

High COD and BOD5

Odor risk

More difficult oxygen control

Cost

Media

Equipment / Control (PLC)


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The BIOSTYR


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Biostyr : presentationBiostyr unit in filtration mode

Inlet channel

Process air

Raw water

Filtered water

Nozzle

floor

Outlet Closed

Inlet Open

F.W channel


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Biostyr: Backwash

Remove TSS accumulated

Remove Excess Biomass

Done by

Gravity flushesAir scour phases


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Biostyr: Backwash - water

Waste

Backwash

Water

WA

TER

Storage of treated

water for backwash

Valve Open

EXPANSION

Phase : Gravity Water Flushes


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Biostyr: Backwash Air ScourPhase : Backwash air to scour the media.

air

AIR


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Biostyr: MediaBiostyrene

3.3 - 5 mm


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Biostyr: Media characteristic

Lighter than water 45 55 kg/m3, has to be

retained in the filter.


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Biostyr : Nozzles

View below nozzle deck The nozzle


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Biostyr : Air Grid

Air DistributionLaterals

Air Feed

Header

Filter Nozzle

Floor Man Way


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Biostyr : Pipe Gallery


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Biostyr : Treated water


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Biostyr : Applications


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Secondary Treatment : Carbon removal

Carbonatios Pollution (TSS, BOD and

COD) Treated water outlet

Process / scour airPrimary settled water

(10mm screened)

6to10m/hr

Biostyr : Application

Filtration velocity is dependent upon selected media size to provide optimum performance

against defined inlet loads. Media size 4.0 mm to 5.0 mm.

Effluent :

BOD < 30 mg/l

TSS < 30 mg/l


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Secondary Treatment : Carbon removal

Montpellier France (170,000PE)

Kajani Finland (34,000PE) Saragosse Pilot Spain ( 700,000PE)



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Secondary Treatment : Nitrification

Carbonatios Pollution (TSS, BOD and COD) + TKN (NH4-N)

Treated Water Outlet

Process / Scour Air

4-8m

/hr

Primary settled water

(10 mm screened)


Filtration velocity is dependent upon selected media size to provide optimum performance against

defined inlet loads. Media size 3.6mm to 4.5 mm.

Effluent :

BOD < 15 to 25 mg/l

TSS < 15 to 25 mg/l

TKN < 5 to 10 mg/l

NH4-N < 2 to5mg/l


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Colombiers Switzerland (46,000PE)Saint Peters,MN USA (35,000PE) Northfield,MN USA (50,000PE)

Secondary Treatment : Nitrification

Geneva Switzerland (600,000PE)Cergy France (200,000PE)



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Scour Air

Primary Settled water

6to10m

/hr

Process Air

Returnflow

(240%)-Nitrateload

Aerobic zone N (67% bed depth)

Anoxic zone DN (33% bed depth)

Filtration velocity is dependent upon selected media size to provideoptimum performance against defined inlet loads. Media size 3.6mm

to 4.5 mm.

Effluent :

BOD < 15 to 25 mg/l

TSS < 10 to 20 mg/l

NH4N < 1 to 3 mg/l

Total N < 10 to 15 mg/l

Secondary Treatment : Total Nitrogen Classical NDNBiostyr : Application


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Process / Scour Air

4.5to10m

/hr

Process air

controlled from

Outlet Quality

D.O. and NH4

Return

flow

(80%)-N

itrateload

Primary Settled Water

Filtration velocity is dependent upon selected media size to provideoptimum performance against defined inlet loads. Media size 3.6mm

to 4.5 mm.

Effluent :

BOD < 15 to 25 mg/l

TSS < 10 to 20 mg/l

NH4N < 1 to 3 mg/l

Total N < 15 to 20mg/l

Secondary Treatment : Total Nitrogen >Biostyr : Application


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Herford Germany (300,000PE)

Secondary Treatment : Total Nitrogen

FORMIGUERE France (15,000PE)Nyborg Denmark (60,000PE)

Blagnac France (35,000 pe) La Barrosa - Spain (30,000PE)



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Process / Scour Air

5to14

m

/hr

Influent from

secondary Biological

treatment phase

Filtration velocity is dependent upon selected media size to provide optimum performanceagainst defined inlet loads from the secondary biological treatment phase. Media size 3.3mm to

4.0mm.

Effluent :

BOD < 10 to 15 mg/l

TSS < 10 to 15 mg/l

TKN < 3 to 6 mg/l

NH4-N < 1 to 3 mg/l

Biostyr : ApplicationTertiary Treatment : NitrificationAmmoia removalTKN (NH4-N)


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Colombes France (1,000,000PE)

Traitement tertiaire : Nitrification

Davyhulme UK (1,500,000PE)Syracuse, NY USA (910,000PE)

Shepton Mallet UK (33,000PE)



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Blended Treated

Water Outlet

Scour Air

20to

25m/hr

External Carbon

source - Methanol

P

artialflow

bypassed

untreated

Influent from

Biological

nitrification

treatment phase

Filtration velocity is dependent upon selected media size to provide

optimum performance against defined inlet loads from the biological

treatment phase (Tertiary N or N.DN). Media size 4.5mm and 5mm.

Tertiary or quaternary Treatment : Post Denitrification



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Lagny France (100,000PE)

Tertiary or quaternary Treatment : Post Denitrification

Helsinki Finland (900,000PE)

Nyborg Denmark (60,000PE)



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Biostyr : Around the world

0

20

40

60

80

100

1988 1993 1998 2003 2008 2013

Numberofplants(-)

1 1 12

12 2 2

45

7 78 8

11

39

0

5

10

15

20

25

30

35

40

45

Lebanon

Luxembour

Canada

Spain

Turkey

Portugal

China

Korea

Italy

Japan

Finland

Switzerlan

d UK

Denmark

USA

France

Countries (-)

Numberofplantsinoperation(-)


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006 biofiltration_bo mon_ xu_ ly_ nuoc_ thai_ sinh_ hoat

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