006 biofiltration_bo mon_ xu_ ly_ nuoc_ thai_ sinh_ hoat
TRANSCRIPT
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TAI LIEU C CUNG CAP TAI A CH DIEN AN
WWW.MOITRUONG.CO.NR
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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)
Biostyr : Application
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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)
Biostyr : Application
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)
Biostyr : Application
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Treated Water Outlet
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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Treated Water Outlet
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)
Biostyr : Application
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Treated Water Outlet
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)
Biostyr : Application
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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
Biostyr : Application
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Lagny France (100,000PE)
Tertiary or quaternary Treatment : Post Denitrification
Helsinki Finland (900,000PE)
Nyborg Denmark (60,000PE)
Biostyr : Application
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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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