Cleargreen™BIOLOGICAL TREATMENT OF EFFLUENTS WITHBIOLOGICAL TREATMENT OF EFFLUENTS WITH HIGH CONCENTRATIONS OF AMMONIA

URBAN WASTEWATER

ELIMINATE NITROGEN CAUSED BY ANAEROBIC DIGESTION OF SLUDGEEN

-100

4

1

DIGESTION OF SLUDGE

P-PP

T-ER

-009

-E

CONTENTSUrbanW t tWastewater

Cleargreen™

Why a new product to treat ammonia?

Cleargreen™ in the treatment line

Operating Principle

Advantages of Cleargreen™

Case study: Creil-Montataire (60), FRANCE

22

WHY A NEW PRODUCT TO TREAT AMMONIA?

UrbanW t t

Cleargreen™

AMMONIA?

Nitrogen treatment requires high

Wastewater

• Nitrogen removal needs 2 successives biological reactions

Nitrogen treatment requires high operating costs

• Nitrogen removal needs 2 successives biological reactions(nitrification and denitrification) requiring high levels of :

1-Energy consumption for aeration2-External carbon (ex. : méthanol)( )

• The growing market for anaerobic sludge digestion and biogazreuse leads to :

A 15% to 35 % (in case of co-digestion) increase in nitrogen load tobe treated on the water treatment line.This treatmnt increase energyand external carbon consumption and could also increase volumes.

33

Cleargreen™ IN THE TREATMENT LINE

**

44

*Ultrafor™, Biofor™, Cyclor™ or Meteor™

OPERATING PRINCIPLE (1/2)UrbanW t t

( )

Cleargreen™ • A biological treatment which is based on the Anammox b t i ti i SBR

Wastewater

bacteria action in a SBR. • A reactor equipped with captors, continually monitoring the system to limit human intervention.• An implemented biological reaction of deammonification.

A process divided into 4 stages into one tank

p g

55

OPERATING PRINCIPLE (2/2)UrbanW t t

( )

Cleargreen™ Specific features:

Wastewater

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 h t– Leachate

66

ADVANTAGES OF Cleargreen™UrbanW t t

g

• A patented, innovative, award-winning processCleargreen™

Wastewater

A patented, innovative, award winning process• Ease of operation:

– Spontaneous installation (without seeding) of the specific biomass due to the control of the process’ conditionsAutomatic control of cycles and regulation– 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– No reactive agents needed– Preservation of energy resources

• Savings:– Automatic regulation of air supplyAutomatic regulation of air supply

(= control of consumption)

77

CASE STUDY:CREIL MONTATAIRE (60) FRANCECREIL-MONTATAIRE (60), FRANCE

CONTEXT: • P t t th t h b i t ll d th

DESIGN: • Aerated biological tank volume of• Prototype that has been installed on the

WTTP of 250,000 PE

• Dehydration of digested sludge return at h C il l

• Aerated biological tank volume of30,000 m3 - Digestion

• Cleargreen™ prototype capacity:3 m3/dthe Creil plant

• Duration of the test: 17 months

• Continuous operation with a yield that reaches more than 90% on nitrogen

88