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Vega Bahia Landfill Project Design Document . Amr Abdel-Aziz, Ph.D. + H 2 O. Background -- Landfills. CO 2 +NH 3 + CH 4. Background -- Methane Collection Systems. Passive venting system 20% collection efficiency. Active collection systems 80% collection efficiency.

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Vega Bahia Landfill Project Design Document

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Vega bahia landfill project design document l.jpg

Vega Bahia Landfill Project Design Document

Amr Abdel-Aziz, Ph.D.


Background landfills l.jpg

+ H2O

Background -- Landfills

CO2+NH3+ CH4


Slide3 l.jpg

Background -- Methane Collection Systems

Passive venting system

20% collection efficiency


Slide4 l.jpg

Active collection systems

80% collection efficiency

Background -- Methane Collection Systems


Content l.jpg

Content

A. General Description of Project Activity

B. Baseline Methodology

C. Duration of Project Activity / Crediting Period

D. Monitoring Methodology and Plan

E. Calculation of GHG Emissions by Sources

F. Environmental Impacts

G. Stakeholder Comments


A general description of project activity l.jpg

A. General Description of Project Activity

  • Title: Slavador da Bahia Landfill Gas Project

  • Description

    • 850,000 t MSW/yr

    • Organic content of waste 65%

    • Flaring equipment with capacity of 6,250 m3/hr in 2000 to be expanded to 46,250 m3/hr in 2020

    • 5% of CER proceeds will be allocated to local community and environmental activities (sustainable development)


A general description of project activity7 l.jpg

A. General Description of Project Activity

  • Technical Description

    • Biogas capture and treatment system complying with European standards

  • National and Sectoral Policies

    • No specific requirement on gas management

    • New waste management policy under discussion but currently no changes are anticipated


B baseline methodology l.jpg

B. Baseline Methodology

  • Title and Reference

    • Contractual amount of landfill gas capture and flaring defined through public concession contract

  • Annex 3 was submitted since this was a new baseline methodology


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B. Baseline Methodology

  • Justification of Choice of Methodology

    • Contractual agreement where the operator is responsible for all aspects of the landfill

    • Contract awarded through competitive bidding

    • Contract stipulates amount of landfill gas to be flared  performance among top 20% in the previous 5 years

    • No generation of electricity using captured methane occurs or planned


B baseline methodology10 l.jpg

B. Baseline Methodology

  • Description of Methodology

CH4baseline,y

CH4flared,y

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)

Project Baseline


B baseline methodology11 l.jpg

CH4projected,y:Methane projected to be generated during a given year

K:Decay rate

Lo:m3 CH4 / t MSW

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

B. Baseline Methodology

  • Description of Methodology

    • First order decay model

    • Applied to a single batch (either a layer or a year), then results are summed for all batches


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B. Baseline Methodology

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

  • Lo (m3 CH4 / t MSW)

MCFMethane correction factor

DOC Degradable organic carbon

DOCfFraction of organic carbon converted to landfill gas

FFraction of CH4 in landfill gas (Default = 0.5)


Baseline l.jpg

Baseline

W06

W04

W03

W05


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B. Baseline Methodology

  • Description of how emissions are reduced below baseline (Additionality)

    • Services are paid through a fixed fee per ton MSW

    • Contract clearly indicates amount of methane to be flared

    • No regulatory requirement governs recovery, therefore, passive system of 20% efficiency are considered best practice

Economics


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B. Baseline Methodology

  • Description of how the definition of project boundary is applied to the project

    • Emissions occur within project boundary

    • Leakage emissions  Electricity used in new collection system  ignored since Hydro dominates Bahia

  • Details of baseline development

    • Date of completing baseline: 18 June 2003

    • Name of person/entity determining baseline: ICF consulting


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C. Duration of Project Activity

  • Starting date

    • 1/1/03

  • Expected lifetime

    • 17 years

  • Crediting period

    • 7 years to be renewed


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D. Monitoring Methodology

  • Monitoring 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


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D. Monitoring Methodology

  • Quality Control / Quality Assurance Procedures

    • Procedure for equipment calibration

    • ISO 9000/14000 certification

  • Annex 4 Filled since this was a new methodology


E calculation of emission reduction l.jpg

Corrected by monitoring CH4 flared

Corrected by monitoring actual waste and % CH4 in LFG

E. Calculation of Emission Reduction

7,568,926

t CO2e

22,076,034

t CO2e

Project Baseline

*

*

* Based on rough calculations (actual ICF calculations not included in PDD)


E calculation of emission reduction20 l.jpg

(t/yr)

E. Calculation of Emission Reduction

*

= Total ER

+

Collection Begins

+

+

* Based on rough calculations (actual ICF calculations not included in PDD)


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F. Environmental Impacts

  • The project will destroy other emissions of local impacts besides methane e.g. volatile organic compounds (VOCs)  positive environmental impact

  • No negative environmental impacts are associated with the project  no need for an environmental impact assessment


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G. Stakeholders Comments

  • Meeting with the press:

    • Article in one of the newspapers

    • Television broadcast

    • Radio broadcast

  • Public presentation with local stakeholders announced in 3 newspapers

    • local authorities

    • Press

    • NGOs

    • Private sector

    • Universities attended


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Comment

G. Stakeholders Comments

  • Project brief available on website  Comments can be sent by email

  • Only technical comments were received


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