Biological treatment of effluents with high concentrations of ammonia

1. Cleargreen™
BIOLOGICAL TREATMENT OF EFFLUENTS WITH
HIGH CONCENTRATIONS OF AMMONIA
URBAN
WASTEWATER
ELIMINATE NITROGEN CAUSED BY ANAEROBIC
EN-1004
DIGESTION OF SLUDGE
P-PPT-ER-009-E
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2. Urban
Wastewater
W t t
CONTENTS
Cleargreen™
 Why a new product to treat ammonia?
 Cleargreen™ in the treatment line
 Operating Principle
 Advantages of Cleargreen™
 Case study: Creil-Montataire (60), FRANCE
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3. Urban
WHY A NEW PRODUCT TO TREAT
Wastewater
W t t
AMMONIA?
Cleargreen™  Nitrogen treatment requires high
operating costs
• Nitrogen removal needs 2 successives biological reactions
(nitrification and denitrification) requiring high levels of :
1-Energy consumption for aeration
2-External carbon (ex. : méthanol)
( )
• The growing market for anaerobic sludge digestion and biogaz
reuse leads to :
A 15% to 35 % (in case of co-digestion) increase in nitrogen load to
be treated on the water treatment line.This treatmnt increase energy
and external carbon consumption and could also increase volumes.
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4. Cleargreen™ IN THE TREATMENT LINE
*
*
*Ultrafor™, Biofor™, Cyclor™ or Meteor™
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5. Urban
Wastewater
W t t
OPERATING PRINCIPLE (1/2)
( )
Cleargreen™ • A biological treatment which is based on the Anammox
bacteria ti
b t i action i a SBR
in SBR.
• A reactor equipped with captors, continually monitoring the
system to limit human intervention.
• An implemented biological reaction of deammonification.
p g
 A process divided into 4 stages into one tank
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6. Urban
Wastewater
W t t
OPERATING PRINCIPLE (2/2)
( )
Cleargreen™ Specific features:
p
Cleargreen™ specifically treats the concentrated flow of nitrates: it
does not return to the head of the water treatment line.
Field of application for urban WWTP:
– Retun flow from digested (Digelis &Digelis Turbo) sludge dewatering,
– Centralized sludge treatment plants
–L
Leachate
h t
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7. Urban
Wastewater
W t t
ADVANTAGES OF Cleargreen™
g
Cleargreen™ • A patented, innovative, award-winning process
award winning
• Ease of operation:
– Spontaneous installation (without seeding) of the specific
biomass due to the control of the process’ conditions
– Automatic control of cycles and regulation
– Simple interface for an optimized management of aeration
– Low-maintenance
• Performance:
– Robust adaptability to variations in load and effluent
composition
• Sustainable Development:
– No reactive agents needed
– Preservation of energy resources
• Savings:
– Automatic regulation of air supply
(= control of consumption)
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8. CASE STUDY:
CREIL-MONTATAIRE (60),
CREIL MONTATAIRE (60) FRANCE
CONTEXT: DESIGN:
• P t t th t h b iinstalled on the
Prototype that has been t ll d th • Aerated biological tank volume of
WTTP of 250,000 PE 30,000 m3 - Digestion
• Dehydration of digested sludge return at • Cleargreen™ prototype capacity:3 m3/d
the Creil plant
h C il l
• Duration of the test: 17 months
• Continuous operation with a yield that
reaches more than 90% on nitrogen
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