Cyclor™ACTIVATED SLUDGE BY SEQUENCING BATCH REACTOR
URBAN
WASTEWATER
SIMPLIFY WASTEWATER TREATMENT IN A COMPACT SYSTEM
P-PPT-ER-004-EN-1004
Urban
Wastewater
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CONTENTS
• 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
Cyclor™
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Cyclor™: A CONVENTIONAL TREATMENT WITHIN ONE SINGLE STRUCTURE
INTERMITTENT OPERATION
Biological tank Clarifier
Biological treatment using prolonged aeration in sequential stages:
the Cyclor™
+
CONTINUOUS OPERATION
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Wastewater
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Treatment stages
SEPARATED IN TIMEnot in space
INTERMITTENT OPERATION
OPERATING PRINCIPLE (1/3)
Cyclor™
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Wastewater
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The various possible configurations–Cycle duration (4 hours 20 minutes, 6 hours 30 minutes)–Number of cells –Aeration sequencing
Cyclor™
OPERATING PRINCIPLE (2/3)
Nitrification and/or denitrification Denitrification DenitrificationSludge extraction
Cycle duration
AerationAnoxia Anoxia
Time
feed | reaction
Reaction - Feed Decantation65 min
Drainage65 min
MaxLevel
Level
MinimumLevel
Aeration Anoxia Aeration
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Wastewater
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EXEMPLE DE CYCLE - 4 CELLULES, 4H20
Cyclor™ AN EXAMPLE OF A 4-CELL CYCLE OVER 4 HOURS 20 MINUTES
OPERATING PRINCIPLE (3/3)
Anoxia
Settling65 min
Drainage65 min
HighLevel
Aeration
LowLevel
Fill130 min
Time
Cell 1
Cell 2
Cell 3
Cell 4
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Cyclor™ - ITS MAIN COMPONENT PARTS
Cyclor™ engineeringThe Cyclor™Biological Reactor
Cell Reactor + selector
• Circular• Rectangular
ScoopTreated water collection system
• Available in 4 sizes
Aeration system
• Floor• Aeration/•Mixer Combination
Treated water collection system
Raw water
Cells
TreatedWater
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Wastewater
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• 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
ITS COMPONENT PARTS –
THE PATENTED SCOOP
Cyclor™ ���� The Cyclor™ scoop:
Controlled Drainage
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Wastewater
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Issoire
Jougne
Pithiviers
Bonnière
Aeration through the floor over the entire surface area of the structure
Use of other aeration systems: OKI type mechanical mixing, INVENT for separating aeration and mixing
Option whereby aeration and mixing are separate
ITS COMPONENT PARTS – AERATION
Cyclor™ ���� Aeration: several
possible systems
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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)
Cyclor™���� Perfectly controlled biological
treatment
ITS COMPONENT PARTS –
THE SELECTOR
To be established for each individual case
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THE Cyclor™ MODULAR OPERATION
– AN EXAMPLE
• Problem caused by a fault• Maintenance required
Transition to Fault mode
in the Programmable Logic Controller
• Cripple mode operation:
100% of the flow accepted 100% of the
time
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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Wastewater
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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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AMONG THE Cyclor™ REFERENCES (1/2)
PLANT NAME COUNTRYCONTRACT
DATE
COMPLETION
DATEPE
FLOWRATE
in m3/d
NUMBER OF
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& Marciano della Chiana
Italy 4,000 900 2
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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PLANT NAME COUNTRYCONTRACT
DATE
COMPLETION
DATEPE
FLOWRATE
in m3/d
NUMBER OF
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
AMONG THE Cyclor™ REFERENCES (2/2)
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34 000 p.e. wastewater treatment plantIssoireCommissioned February 2008
General principle
•Bar screening
•Pre-treatment(Grit-Grease Remover)
•Cycllllor™ 4 circular Cycllllor™ cells (1800 m3 ,
25 m2 selector) 4 hour 20 minute cycle
•GDD + Centrifugation
STATEMENT – 6 MONTHS
Raw water average(mg/L)
Treated water average(mg/L)
Standard(mg/L)
S.Solids
260 6 (97%) 20 (90%)
COD 560 32 (92%) 75 (90%)
BOD5350 9 (97 %) 90 (90%)
NGL 70 10 ( 84% ) 15 (70%)
Ptot8 2 ( 81%) 2 (85%)
CASE STUDY:ISSOIRE (63), FRANCE
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53 000 p.e. wastewater treatment plantSallanchesCommissioned October 2007
General Principle
•Bar screening•Pre-treatment (Grit-Grease remover)
•Primary decantation (2 Densadeg 2D 1300 m3/hour)
• Cycllllor™ 4 circular Cycllllor™ cells (500 m3 + 42 m2 selector)4 hour 20 minute cycle
•GDD + Digestion + Centrifugation
Raw water average(mg/L)
Treated water average(mg/L)
Standard (mg/L)
S.Solids
294 19 (93%) 35 (et 90%)
COD 590 42 (93%) 125 (75%)
BOD5 254 14 (94%) 25 (82%)
NGL 47 11 (74%)
Ptot 9 4
CASE STUDY:SALANCHES (73), FRANCE
STATEMENT – 8 MONTHS
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DESIGN: 60 000 p.e.Qd=9750 m3d, Qpp=1360 m3/hourCommissioned : 2001
Cycllllor™ 4 semi circular cells
4 hour 20 minute cycle
• Cyclazur scoop (7.5 m)
•Cell: 900 m2 ; Hmin: 4.24 m, Hmax : 5.5
•84 m2 (Qr=86m3/hour) selector
•Grav. Thickener + Centrifugation
STATEMENT – 2001-2002 THEN 2005-2006
Raw water average(mg/L)
Treated water average(mg/L)
Standard (mg/L)
S.Solids
430 4 (98%)
COD 860 30 (96%) 90
BOD5415 5 (99%) 10
NTK 56 3 ( 93%)
Ptot14 0.4 (97%) 1
CASE STUDY:GÜSTROW, GERMANY