Activated sludge by sequencing batch reactor

1. Cyclor™
ACTIVATED SLUDGE BY SEQUENCING
BATCH REACTOR
URBAN
WASTEWATER
SIMPLIFY WASTEWATER TREATMENT
P-PPT-ER-004-EN-1004
IN A COMPACT SYSTEM

2. Urban
Wastewater
CONTENTS
Cyclor™ • Description: the Cyclor™ as part of the
treatment system
• Operating principle
• The component parts of the Cyclor™ :
– The patented scoop
– Aeration
– The selector
• The advantages of the Cyclor™
• A few references
• Case study: Issoire, 63, France
• Case study: Sallanches, 73, France
• Case study: Güstrow, Germany
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3. Cyclor™: A CONVENTIONAL TREATMENT WITHIN
ONE SINGLE STRUCTURE
CONTINUOUS OPERATION
Biological tank + Clarifier
Biological treatment using prolonged
aeration in sequential stages:
the Cyclor™
INTERMITTENT OPERATION
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4. Urban OPERATING PRINCIPLE (1/3)
Wastewater
Cyclor™ INTERMITTENT OPERATION
Treatment stages
SEPARATED IN TIME
not in space
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5. Urban OPERATING PRINCIPLE (2/3)
Wastewater
Cyclor™
Reaction - Feed Decantation Drainage
feed | reaction 65 min 65 min
Max
Level
Nitrification and/or denitrification Denitrification Denitrification
Sludge extraction
Level
Minimum
Level
Time
Aeration Anoxia Aeration Anoxia Aeration Anoxia Cycle
duration
The various possible configurations
– Cycle duration (4 hours 20 minutes, 6 hours 30 minutes)
– Number of cells
– Aeration sequencing
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6. EXEMPLE DE CYCLE - 4 CELLULES, 4H20
Urban OPERATING PRINCIPLE (3/3)
Wastewater
Cyclor™ AN EXAMPLE OF A 4-CELL CYCLE OVER 4 HOURS 20 MINUTES
Fill Settling Drainage
130 min 65 min 65 min
High
Level
Low
Level
Time
Aeration Anoxia
Cell 1
Cell 2
Cell 3
Cell 4
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7. Cyclor™ - ITS MAIN COMPONENT PARTS
The Cyclor™ Cyclor™ engineering
Biological Reactor
Treated water Cell • Circular
collection system Reactor + • Rectangular
selector
Raw water Scoop
Treated water • Available in
collection 4 sizes
system
• Floor
Treated Aeration • Aeration/
Water system •Mixer
Cells
Combination
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8. ITS COMPONENT PARTS –
Urban
Wastewater THE PATENTED SCOOP
Cyclor™ The Cyclor™ scoop:
Controlled Drainage
• A circular weir protected by a scum baffle
• A double locked scoop
Pneumatic locking by injecting air, thus preventing treated water contamination
Hydraulic locking using an automatic valve on the scoop discharge
Fill/Aeration + Decantation
The treated water valve closes
Air is injected → Creating an air blanket
A floating, sealed weir
Drainage
The treated water valve opens
The air blanket is eliminated
The weir is submerged and
drainage is controlled
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9. Urban ITS COMPONENT PARTS – AERATION
Wastewater
Cyclor™ Aeration: several
possible systems
Aeration through the floor over the
entire surface area of the structure
Issoire
Jougne Option whereby aeration and mixing
are separate
Use of other aeration
systems: OKI type
Pithiviers mechanical mixing,
INVENT for separating
aeration and mixing
Bonnière 9

10. ITS COMPONENT PARTS –
Urban
Wastewater THE SELECTOR
Cyclor™
Perfectly controlled biological
treatment
A plug flow zone equipped with
vertical baffles
•Improved sludge settling capacity by
encouraging flocculation to the detriment
of filamentous bacteria
(High F/M ratio zone)
•Optimized denitrification and biological
dephosphatation reactions
(Predominant anoxic and anaerobic condition)
To be established
for each
individual case
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11. THE Cyclor™ MODULAR OPERATION
– AN EXAMPLE
• Cripple mode
Transition to operation:
• Problem caused by a fault Fault mode
• Maintenance required 100% of the flow
in the accepted 100% of the
Programmable time
Logic Controller
In the case of a configuration comprising fewer than 2 Cyclor™ cells, a
buffer tank will be required for storing part of the flow
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12. Urban
Wastewater
THE ADVANTAGES OF THE Cyclor™
Cyclor™ • Compact: eliminates the clarifier(s); Footprint reduced by
up to 40% compared with a conventional suspended
growth system
• Easy to set up : the architectural integration of the
process for low visibility integrated plants design
• Controlled bulking
• Good quality of treated water
• Optimized sludge decantation
• Good operating modularity
• Simple to operate: automatically controlled cycles, simple
interface for optimized aeration management
• Low maintenance: no pumping, except in the
case of stacked cells
• Loading fluctuation factor ranging from
1 to 4 maximum over a week
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13. AMONG THE Cyclor™ REFERENCES (1/2)
CONTRACT COMPLETION FLOWRATE NUMBER OF
PLANT NAME COUNTRY PE
DATE DATE in m3/d CELLS
Etar de Pegões Portugal Sept 07 Mar 09 <100
Etar de Gradil Portugal Oct 07 Feb 09 <100
Atuogia Portugal Nov 07 35,000 6,650 4
Castiglion Fibocchi Italy 9,000 3,024 2
Buccine Italy 4,000 900 2
Arezzo, Monte San Savino
Italy 4,000 900 2
& Marciano della Chiana
Zambujeira Portugal 25,000 4,750 4
Afonsoeiro Portugal 48,000 11,500 4
Alcochete Portugal 27,750 8,350 4
Etar de Seixalinho Portugal 48,000 14,400 4
Birs Switzerland 150,000 5
Saarwellingen Germany 15,000
Baiyun China 80,000 40,000 4
Gok Reung Korea 3,800 1,600 3
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14. AMONG THE Cyclor™ REFERENCES (2/2)
CONTRACT COMPLETION FLOWRATE NUMBER OF
PLANT NAME COUNTRY PE
DATE DATE in m3/d CELLS
Vallée du Carol France Apr 07 Jun 08 5,800 1
Le Harve, 76 France Apr 07 Dec 09 415,000 8
Les Abrets, 38 France Apr 07 <200
Airvault, 79 France July 07 Sep 08 4,200 2
Severac le château, 12 France Sep 07 Sep 08 5,500 2
Val d’Ambin, 73 France Nov 07 July 08 10,000 2
Montélimar, 26 France Nov 07 Nov 10 90,000
Annot, 04 France Nov 07
Beauvoir sur mer, 85 France Nov 07 <500
Sallanches, 73 France Oct 07 53,000 15,950 4
Noel Cerneaux, 25 France In service 1,200
Noves, 13 France In service 4,000
St Gildas des bois, 22 France In service 3,700 1,300 2
Super Lioran, 15 France In service 7,000 1,500 2
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15. CASE STUDY:
ISSOIRE (63), FRANCE
34 000 p.e. wastewater
treatment plant
Issoire STATEMENT – 6 MONTHS
Commissioned February 2008
Raw water Treated water Standard(mg/L)
average average
General principle (mg/L) (mg/L)
• Bar screening 260 6 (97%) 20 (90%)
S.Sol
• Pre-treatment ids
(Grit-Grease Remover)
COD 560 32 (92%) 75 (90%)
• Cycllor™ 4 circular Cyclor™ cells (1800 m3 ,
l
25 m2 selector) BOD5 350 9 (97 %) 90 (90%)
4 hour 20 minute cycle
• GDD + Centrifugation NGL 70 10 ( 84% ) 15 (70%)
Ptot 8 2 ( 81%) 2 (85%)
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16. CASE STUDY:
SALANCHES (73), FRANCE
53 000 p.e. wastewater
treatment plant
Sallanches STATEMENT – 8 MONTHS
Commissioned October 2007
Raw water Treated water Standard
average average (mg/L)
(mg/L) (mg/L)
General Principle
•Bar screening S.Sol
294 19 (93%) 35 (et 90%)
ids
•Pre-treatment
(Grit-Grease remover) COD 590 42 (93%) 125 (75%)
•Primary decantation BOD5 254 14 (94%) 25 (82%)
(2 Densadeg 2D 1300 m3/hour)
NGL 47 11 (74%)
• Cycllor™ 4 circular Cycllor™ cells (500
m3 + 42 m2 selector) Ptot 9 4
4 hour 20 minute cycle
•GDD + Digestion + Centrifugation
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17. CASE STUDY:
GÜSTROW, GERMANY
DESIGN: 60 000 p.e.
STATEMENT – 2001-2002 THEN 2005-2006
Qd=9750 m3d, Qpp=1360
m3/hour Raw water Treated water Standard
average average (mg/L)
Commissioned : 2001
(mg/L) (mg/L)
S.Sol 430 4 (98%)
Cyclor™
l 4 semi circular cells
4 hour 20 minute cycle ids
COD 860 30 (96%) 90
• Cyclazur scoop (7.5 m)
415 5 (99%) 10
•Cell: 900 m ; Hmin: 4.24 m, Hmax : 5.5
2 BOD5
•84 m2 (Qr=86m3/hour) selector NTK 56 3 ( 93%)
•Grav. Thickener + Centrifugation Ptot 14 0.4 (97%) 1
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