djerba carbon exhibition djerba, september 22-24, 2004 onyx gas capture and flaring projectonyx gas...

Djerba Carbon Exhibition Djerba, September 22-24, 2004

Onyx Gas Capture and Flaring Project

Onyx Gas Capture and Flaring Onyx Gas Capture and Flaring ProjectProject

Alexandria, Egypt Alexandria, Egypt

Amr Abdel-Aziz, Ph.D. Integral Consult,

Egypt



BackgroundBackground

Onyx Alexandria is owned by Veolia Environment

Veolia is Ranked 1st in Europe and 2nd worldwide in the field of solid waste collection and disposal

Operates in 33 countries with 68,000 employees

Onyx AlexandriaOnyx Alexandria



BackgroundBackground

18 district served with a total area of 7,200 km2

2,700 t/d to be collected, part composted and the

remaining is landfilled Biogas collection and leachate treatment systems

should be installed

No biogas capture rate specified in the contract

ContractContract



Location of LandfillsLocation of Landfills Borg El Arab (All seasons except summer) El Hammam (Summer season)



Project DescriptionProject Description

A biogas collection system is installed

Collected biogas is utilized for leachate treatment

Onyx is not obliged to collect excess methane not needed for leachate treatment

Will install additional 3 flaring units of capacity 1,500 m3/h each to flare excess methane




Biogas CollectionBiogas Collection Leachate CollectionLeachate Collection

Leachate TreatmentLeachate Treatment



Baseline – AM0002Baseline – AM0002

Onyx is responsible for all aspects of the landfill

Contract awarded through a competitive bid

Onyx should collect the biogas (no specific quantity)

quantity used for leachate treatment is the baseline

No other landfill in Egypt collects and flares biogas

No generation of electricity using the captured landfill

gas occurs (may be considered in the future)

ApplicabilityApplicability



Baseline - ApplicationBaseline - ApplicationFirst order decay model – IPCC guidelines

y to0t

t)k(ytcontract,oyprojected, e*Waste*L*kCH4

CH4projected,y: Methane projected to be generated during a given yearK: Decay rate

Lo: m3 CH4 / t MSW

Wastecontract,t: Waste projected to be lanfilled at year t



Baseline - ApplicationBaseline - Application

K depends on local conditions e.g. temp., moisture content of MSW, pH, and nutrients

IPCC guidelines ranges from 0.005 to 0.4 per year

US EPA 0.1 for wet conditions

Moisture content in Alexandria waste is 60%

K assumed 0.05 for conservativeness

Assumption of kAssumption of k




12

16*F*DOC*DOC*MCFL fo

MCF Methane correction factor assumed 1

DOC Degradable organic carbon assumed 0.19 (IPCC recommends 0.21 for Egypt)

DOCf Fraction of organic carbon converted to landfill gas (assumed 0.77)

F Fraction of CH4 in landfill gas (assumed 0.5)

Estimation of LEstimation of Loo




0.E+00

1.E+07

2.E+07

3.E+07

4.E+07

2002 2003 2004 2005 2006 2007Year

Meth

an

e (

m3/y

r) .

y to0t

t)k(ytcontract,oyprojected, e*Waste*L*kCH4

W03 W04 W05W06




-5,000,000

10,000,00015,000,00020,000,00025,000,00030,000,00035,000,00040,000,00045,000,00050,000,000

2000 2002 2004 2006 2008 2010 2012 2014 2016Year

Met

han

e (m

3)

Projected Methane Generated - BAProjected Methane Generated - BA




Projected Methane Generated - HAProjected Methane Generated - HA

0

5000000

10000000

15000000

20000000

25000000

30000000

2000 2002 2004 2006 2008 2010 2012 2014 2016

Year

Met

han

e (m

3)




Methane Needed for Leachate and Methane Needed for Leachate and 20% of Generated Methane - BA20% of Generated Methane - BA

-1,000,0002,000,0003,000,0004,000,0005,000,0006,000,0007,000,0008,000,0009,000,000

10,000,000

2000 2002 2004 2006 2008 2010 2012 2014 2016Year

Met

hane

(m3)

CH4 Needed for Leachate

20% of Generated CH4




Methane Needed for Leachate and Methane Needed for Leachate and 20% of Generated Methane - HA20% of Generated Methane - HA

0

1,000,000

2,000,000

3,000,000

4,000,000

5,000,000

6,000,000

2000 2002 2004 2006 2008 2010 2012 2014 2016

Year

Met

hane

(m3)

CH4 Needed for Leachate20% of Generated Methane




Baseline Methane Emissions (m3)Baseline Methane Emissions (m3)

0

10,000,000

20,000,000

30,000,000

40,000,000

50,000,000

60,000,000

70,000,000

2005 2007 2009 2011 2013 2015Year

Met

han

e (m

3)




Baseline Methane Emissions (t CO2e)Baseline Methane Emissions (t CO2e)

0100,000200,000300,000400,000500,000600,000700,000800,000900,000

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

Year

Em

iss

ion

s t

CO

2e



Baseline - AdjustmentBaseline - Adjustment

yyprojected,yproject, FP*CH4CH4

contract

actual

ycontract,

yactual,ycontract,ybaseline, R

R*

Waste

Waste*CH4CH4

yyprojected,ycontract, FD*CH4CH4

CH4contract,y: Methane required to be flared each year as per contractFD: Fraction of methane collected in baseline

CH4baselinr,y: Methane specified in contract adjusted by actual waste and actual % CH4 in LFG

R: Fraction of CH4 in LFG

Project Project

FP: Fraction of methane collected in projectCH4flared,y Actual methane flared during year y

yflared,CH4Correct

Correct



AdditionalityAdditionality

The baseline emissions are based on the approval of the leachate treatment system

For other landfills, systems approved by the government are passive collection system (max. efficiency 20%)

No regulations for biogas collection -- only guidelines which does not mandate the use of specific technology

Additional flaring equipment additional costs No expected additional revenues continue business as usual is most attractive course of action

Economic



Emission ReductionEmission Reduction

ERy: GHG reduction in t CO2e

ER_CH4y: Methane emission reduction in m3

CF: 0.000662 t CH4/m3 CH4

GWP_CH4: 21 (Global warming potential for CH4)

GWP_CH4*CF*ER_CH4ER yY

ybaseline,yflared,y CH4CH4ER_CH4

Project Baseline

CH4flared,yCH4baseline,y




0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

2005 2007 2009 2011 2013 2015Year

Met

han

e (t

CO

2e)

Annual Emission Reduction (t CO2e)Annual Emission Reduction (t CO2e)




e21to11.5y tCO241,864,469,076 -1,647,255 6,580,572ER_CH4

Project Baseline

6,580,572 t CO2e

1,647,255 t CO2e

Corrected by monitoring CH4 flar ed Corrected by monitoring actual waste and % CH4

in LFG

CO2 from Electricity Generated on-site



Monitoring MethodologyMonitoring Methodology

Applicability

– Project activities that reduce green house emissions through landfill gas capture and flaring

– Baseline established by a public concession contract



Monitoring MethodologyMonitoring MethodologyMonitoring emissions from project activity

– Measured LFG (c) % CH4 in LFG (c) Temp. (c) Pressure (c) SW disposed (d)

– Calculated Amount of methane flaring for baseline (a) Amount of methane collected in addition to baseline (a) CO2e reduced (a)

a annual, d daily, c continuous



Monitoring MethodologyMonitoring Methodology

Quality Control / Quality Assurance Procedures

– Procedure for equipment calibration

– Will be included in ISO 9000/14000 certification process



Contract duration is 15 years

Started in October 2001 and ends in October 2016

Project expected to start in June 2005

11 y 4 m will remain in contract duration

First crediting period is 7 years

Crediting PeriodCrediting Period



Flaring will also destroy compounds in the biogas such as VOCs

Negative impacts of methane:

– Odour– Risk of explosion

Negative impacts of VOCs – Odour

– Toxicity

– Carcinogenic

– Photochemical reactivity O3 health effects and damage to crops and plants

Environmental ImpactsEnvironmental Impacts



PDD: Final Draft

Financing Situation: Self Financed

DNA Approval: Preliminary approval

Project Implementation: Not yet

Project StatusProject Status



Bioreactor Landfills at Greater Bioreactor Landfills at Greater Cairo Cairo

PIN



Waste is actively degraded rather than decomposed slowly

Leachate will be recirculated and monitored

Gas generated will be collected and flaredA pilot project has been implemented at Waffa and

Amal Landfill in Cairo and is currently under evaluation




Crediting Period: 14 years.

Project Start Date: 2006

Annual CERs Expected: 430,000 (average)

Total expected CERs: 6.5 M

Expected CERsExpected CERs

djerba carbon exhibition djerba, september 22-24, 2004 onyx gas capture and flaring projectonyx gas...

Documents

flaring project alexandria

leachate treatment onyx

biogas capture rate

egypt slide

captured landfill gas

competitive bid onyx

excess methane slide

flaring units of capacity