[], []
[] MUNICIPAL SANITARY LANDFILL
LANDFILL GAS RECOVERY & UTILIZATION PROJECT
TERMS OF REFERENCE
FOR
FEASIBILITY STUDY
***
TABLE OF CONTENT
1. INTRODUCTION
Project Origin
The Client
2. BACKGROUND
3. STUDY OBJECTIVES
4. PROJECT MANAGEMENT ARRANGEMENTS
5. SCOPE OF WORK
6. CONSULTANT STAFFING AND QUALIFICATIONS
7. REPORTING AND SCHEDULE
8. LOCAL SERVICES AND FACILITIES TO BE PROVIDED BY CLIENT AND
CONSULTANT
9. INDICATIVE INPUTS AND CONTRACT ARRANGEMENTS
ATTACHMENTS
ATTACHMENT 1
ATTACHMENT 2
-
Cost Estimates
Data Requirements for Financial Analysis
A. INTRODUCTION
Project Origin
1. The City of [] has sought World Bank (the Bank) support for a Landfill Gas Recovery
and Utilization Project at its municipal solid waste disposal site, named the []
Municipal Sanitary Landfill (), which includes the purchase of carbon credits by the
Bank from the [] Solid Waste Treatment Centre that would be generated by the
project under the Clean Development Mechanism within the framework of the Kyoto
Protocol for Greenhouse Gas reduction.
2. A Project Proposal (PP) prepared by the implementing agency and approved by the []
Development and Reform Commission (_DRC) will form the basis for the
preparation of the feasibility study, a conceptual design and carrying out respective
investigations and surveys. These TOR expand on the PP to reflect the Bank policies
and procedures. The [] DRC will ensure the overall management of the Project and
the [] Project Management Office for World Bank financed projects (_PMO) within
the [] Construction Bureau will coordinate preparation of the Project components.
The _PMO intends to employ international and national Consultants and/or agencies
to help review and coordinate studies and designs and consolidate various component
reports into one Feasibility Study report.
The Client
3. The Client will be [] Co. Ltd, as represented by its Site Manager, [].
B. BACKGROUND
1. [] is one of the four municipalities in [] that is under direct administration of the
Central government (Provincial Status). [] has a total population of about [] million
and a total area of about [] square km. The city of [] is located approximately [] km [].
2. [] Municipal Sanitary Landfill site is one of the four sanitary landfill sites within the
municipality of []. [] Landfill site is currently serving [] districts – [].
3. The site is currently receiving [] to [] metric tons of municipal solid waste per day and
is expected to receive [] tpd consistently starting the later half of 2005.
4. The [] landfill was constructed with an investment of [] million [] by the [] municipal
government and a financial contribution of [] million [] by the [].
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5. Total site design capacity is [] million cubic meters with an effective waste disposal
volume about [] million cubic meters. Phase 1 of the facility has [] cells with [] of the
cells being filled with waste at this time. Cells are constructed out of excavations to
the depth of [] meters with final waste height reaching [] meters above grade and a
total expected waste depth of [] meters.
6. The site has good clay base and is also equipped with liner and leachate collection
system. Site has an on-site wastewater treatment facility. The site first started its
operation in [] and has since accumulated approximately [] metric tons of waste. The
site is equipped with waste two compactors.
7. The [] site has [] passive gas vents constructed of rock cage with perforated center
pipes and not interconnected with leachate collection system.
Sector Agency:
8. For the purpose of the project development, [] Solid Waste Treatment Centre will be
responsible for the planning and construction of the Landfill Gas Recovery and
Utilization Project.
Proposed Project Components:
9. The Project comprises of the following components: a) Design and construction of a
landfill gas collection system including wells, gas collection network (lateral and
header pipes) and extraction blowers; b) landfill gas cleaning and treatment system,
including moisture/condensate and contaminants removal; c) landfill gas flaring
system; d) gas storage and compression system; e) landfill gas utilization system as
fuel (utilization option to be determined by feasibility study); f) associated health and
safety monitoring and protection system; and, g) process monitoring, control and
recording and record-keeping system.
C. STUDY OBJECTIVES
1. To minimize methane emission from the [] landfill site, a potent Greenhouse Gas that
has been attributed as the cause for global warming and climate change.
2. To improve local and regional air quality by reducing the emission of methane and
other volatile organic compounds that are usually associated with the landfill gas
emission.
3. To use the landfill gas as a renewable energy source and replace the consumption of
other conventional fossil fuels, which will further reduce the emission of carbon
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dioxide.
4. To generate additional financial income for the landfill site operation, in order to
provide the necessary funds for site improvements and environmental protection
measures.
5. To improve the design, operation and monitoring of the [] landfill site in order to
optimize landfill gas production and improve on-site environmental conditions.
6. The objective of the assignment is to carry out in conformity with PP, these TOR and
in the specified time, the feasibility study, environmental assessment and a conceptual
design of the landfill gas recovery and utilization system including technology
assessment, equipment list, general specifications and financial evaluations in
sufficient details as a basis for conducting a preliminary and detailed engineering
designs.
D. PROJECT MANAGEMENT ARRANGEMENTS
1. The [] Municipal Sanitary Landfill Site is operated by the [] Co. Ltd, which is under
the management of [] Solid Waste Treatment Centre, which is a subordinate agency
under the []
2. The [] Project Management Office (_PMO) for the World Bank financed project is
providing the coordination role for the project. The _PMO is a subordinate agency
under the [] Construction Commission.
E. SCOPE OF WORK
The main components of a Landfill Gas Recovery and Utilization Project would include
four main areas: a) Landfill site improvements; b) Landfill gas (or methane) generation
estimate; c) Evaluation of landfill gas collection and utilization options; and, d) Financial
and Institutional Analyses. Key system components would include vertical gas
extraction wells or horizontal gas collection trenches, gas extraction pumps, condensate
separation and removal units, gas treatment and storage equipments, gas flare unit(s),
electrical power generator sets and grid connection equipment (if power generation is
selected), as well as associate process monitoring and control systems and safety
measures. It is also fully recognized that site design, operation, waste characteristics
and local weather conditions can have significant impacts on gas generation rate.
Therefore, the scope of work shall consist, but not limited to, the following items:
Landfill Site Improvements:
1. Review existing site conditions:
i. Description of landfill site, design parameters, overall area and surrounding land
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use (attach a local map) showing sensitive land uses where applicable, such as
schools, hospitals, etc.
ii. Surface area, Depth of Waste, site configuration and final closure contour and
grading, and landfill liner and site soil base permeability.
iii. Amount of waste deposited at the landfill facility annually over the entire life
span of the landfill facility.
2. Review and make recommendations to improve current landfill development plan and
operational practices, including cell configurations, site plans, site design criteria,
final contour and grading, and final capping technologies in order to optimize landfill
gas generation rate and maximize potential landfill gas capture rate.
3. Review and evaluate landfill leachate control system, including an assessment of the
water balance within the landfill environment, amount of leachate being removed and
infiltration rate.
4. Improve current site conditions to adopt and achieve best practices for landfill
operation and management including designing and constructing cells to minimize
leachate generation and provide surface water controls.
Landfill Gas Generation Estimate:
5. The Consultant shall conduct a thorough waste composition study. If a relevant and
applicable study has not been conducted, a waste composition study protocol should
be provided; data should be updated, verified and confirmed.
6. Provide a full description of local weather conditions (with seasonal variations) that
may affect landfill gas production, such as seasonal temperature, local precipitation
and evaporation rates.
7. Conduct an assessment of water balance within the landfill environment in order to
project the moisture content of the waste within the landfill over the year, including a
description of the landfill final cover and an estimate of the infiltration rate and rate
of leachate migration.
8. Provide a description of the landfill operation, cell construction and site operational
methods and an estimate of waste density.
9. Estimate the amount of landfill gas that would be produced by the [] landfill over a
reasonable period of time but not less than 25 years after site closure. Gas estimation
should be based on applicable models and/ or with formulae taking into consideration
site conditions and parameters.
Design and Evaluation of Landfill Gas Collection and Utilization Options
10. Provide a conceptual design of the landfill gas collection system, ensuring the
proposed system will be fully coordinated with current landfill development and
operational plans to minimize potential interference with existing site operation.
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11. Integrate existing passive gas collection and venting system into the new gas
collection system to maximize gas capture, if necessary and where appropriate.
12. Design and construct landfill gas recovery and treatment systems, including piping
systems, blowers, condensate and contaminants removal, gas flare, energy utilization
and recovery processes (e.g. power generation unit(s) and grid connection station)
and other process monitoring and control equipment and safety measures.
13. Design landfill gas collection pipe systems, consistent with site cell configurations,
fully integrating existing passive gas collection vertical wells where necessary.
14. Review and revise current site plan to include landfill gas collection, recovery and
utilization processes.
15. Identify possible landfill gas utilization options after considering the quantity and
quality of the landfill gas being produced at [] landfill, with an examination including
at least the following three options:
i. Flaring with heat energy recovery or direct utilization for on-site use, including
facility heating, power generation for on-site use, destruction of landfill leachate,
etc.
ii. Electrical Power Generation for grid connection (sale to electrical power
bureau).
iii. Potential direct use by nearby energy consumers where appropriate.
16. For each of the options:
i. Provide a description of the technology to be used
ii. A general process description
iii. Landfill gas recovery and utilization efficiencies
iv. Project engineering design criteria and process equipment specifications, costs,
total capital investment cost.
v. Annual optional and maintenance costs.
vi. Process monitoring requirements for gas quantity and quality, including
monitoring equipment required, process control procedures and monitoring port
locations and record keeping procedures.
vii. Estimate net efficiencies for a) gas collection, b) gas recovery and treatment and
c) gas utilization. This will result in the net CDM credits that may be eligible
for certification.
viii. Revenues to be generated and/or savings to be achieved from current operations
and fuel replacement.
ix. Return on investment or internal rate of return
17. The Consultant shall make recommendations for landfill gas utilization, which may
include one of the above options or a combination of a number of options.
18. The Consultant shall provide a detailed project development and implementation
schedule for the recommended option, including time required for relevant
government approvals, negotiation for contracts, such as energy supply and purchase
agreements, etc.
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Institutional Requirements:
19. Analyze existing management structure and identify deficiencies of existing structure,
if applicable. Propose the structure of a new operational entity that will demonstrate
management accountability for operational efficiency, financial independence and
sustainability and adequate public service.
20. Determine staff requirements for project implementation, including formal education,
training and experience.
21. Identify training requirements and available sources of such training for landfill site
management and operational staff relating to municipal solid waste management and
landfill gas recovery and utilization systems.
Environment and Safety Measures:
22. Assess short term and longer-term environmental risks (such as, air emission, surface
and groundwater and sub-surface gas migration) of the landfill facility.
23. Assess on-site health and safety requirements.
F. CONSULTANT STAFFING AND QUALIFICATIONS
1. The Consultant shall provide sufficiently qualified personnel to carry out the work.
This will include an English/[] interpreter for various meetings and translation of all
respective reports and documents related to the project. The categories and caliber of
key professional staff required for the assignment are shown in the table below.
Consultant Personnel
Professional Specialization
Minimum Years
of Experience in
Specialization
Sanitary engineer (solid waste specialist with strong experience in
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project management for landfill gas recovery & utilization)
Chemical Engineer with specialization in landfill gas processing
5
Electrical/mechanical engineer (with specialization in power
5
engineering and applicable experience in solid waste management)
Sanitary engineer (with specialization in geotechnical and
5
hydrogeological engineering)
Civil engineer – estimator
5
Financial analyst-institutional specialist
5
Environment specialist with relevant experience in CDM process
3
English/[] interpreter
3
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G. REPORTING AND SCHEDULE
1. Within two weeks after the signing of service contract, the Consultant shall submit to
the Client for approval, a project methodology and a detailed work plan, including
schedules and tasks/activities and the expected output for each tasks/activities.
2. The Consultant shall organize and hold regular monthly meetings with the Client to
report project progress and provide a detailed description of issues and planned
methods and approaches for issue resolution. The Consultant shall keep detailed
minutes and records for such meeting.
3. In performing their duties, the Consultant shall prepare reports and drawings in [] and
English as required and submit them to the Client and _PMO in numbers (and in
electronic CD’s) and within the time periods as agreed. All major reports should
contain an executive summary in both languages.
4. The interim report shall contain an inventory of available data and information,
review of (a) existing landfill site design, site development plan and site operational
systems, (b) institutions and their status, (c) population within the service areas, past,
current and projected solid waste quantities and waste compositions, (d) landfill gas
generation quantities, recovery and utilization rate, expected amount of Certified
Emission Reduction on a yearly basis over specific periods consistent with the CDM
process, and (e) solid waste management policies, standards and environmental
targets with summary of relevant findings, an adequately detailed project
implementation plan, any major inconsistencies between the TOR and Consultant
findings, likely staffing problems and proposed modified staff allocation, and major
problems that might affect the direction and progress of assignment.
5. The feasibility study report shall expand on the interim report and shall contain
technological, institutional and environmental options of the project with explanation
and quantification of benefits supported by analyses of least-cost alternatives,
weaknesses and risks of each option; recommendation of optimal option and rational
for selected technical proposal, institutional analysis, and environmental assessments.
6. The conceptual design report shall include relevant engineering report, maps, site
plans and drawings.
7. The reports will be produced first as drafts and finalized upon review by the Client
and _PMO. The draft reports shall be presented by the Consultant, reviewed and
discussed at workshops participated by involved agencies and organized by the
Consultant on the Client instruction. The Consultant will allocate a period of one
month for such discussion and follow-up approval.
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Schedule for Submission of Reports
Report
Number of Copies
Chinese
Submission Date
English
Project Methodology & Detailed Work
Plan
4 hard copies
4 CD’s
2 weeks after signing
of service contract
Interim report
4 hard copies
4 CD’s
7
months
after
signing of service
contract
Draft Feasibility study report including
Conceptual Design report
4 hard copies
4 CD’s
8
months
after
signing of service
contract
H. LOCAL SERVICES AND FACILITIES TO BE PROVIDED BY CLIENT AND
CONSULTANT
1. The Client will arrange for access by the Consultant to the [] Landfill site and all
other facilities, which the Consultant deems necessary to visit in connection with
performing their duties and to the key officials in the Government, the Provinces, the
municipalities and agencies concerned with subjects, related to the assignment. The
Client will also provide the Consultant with access to all available data, information,
maps, drawings, internal documents relevant to the consulting services and other
related documents, including the feasibility study and environmental assessment
reports that were produced for the construction of the landfill site. All reference
material will be loaned and shall be returned at the completion of the assignment.
2. The services and facilities to be provided will include use of an office with telephone
and fax.
I. INDICATIVE INPUTS AND CONTRACT ARRANGEMENTS
(To be determined)
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ATTACHMENT 1
Cost Estimates
Costs in RMB million
Item
Local
Foreign
Total
Costs in US$ million
Local
Foreign
Total
Landfill Gas Collection
and Utilization
-Civil works
-Equipment
Solid Waste
Improvements
Landfill
-Civil works
-Equipment
Consulting services and
training:

Engineering and
administration (a);
Supervision (b); Training
(c).
Base cost (in
December 2005 price
levels)
Physical
contingencies
(10% of base cost)
Price contingencies (d)
Total cost of [] Landfill
Gas Project
(a)
(b)
(c)
(d)
*
10% on base cost of civil works, plant, equipment, vehicles, land acquisition and resettlement
2.5% on base cost of civil works and 1.0% on plant, equipment, and vehicles
As projected for institutional, procurement, environment and other aspects
Recommended price contingencies in % for each year (construction period for each sub-project should be
estimated at about years):
Year
2004
2005
2006
2007
1008
2009
2010
Domestic
-2.5
-1.8
-2.0
-1.9
-1.8
-1.8
-1.7
Foreign
-0.37
-1.53
-0.89
-0.89
-0.89
-0.89
-0.89
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All underlining assumptions and other data on which the base the cost estimate should be
described in detail as note under the table.
The cost estimates should be presented in above table showing in separate columns local, foreign
and total costs expressed first in [] and converted in US$ ([] = US$ 1.00). An attempt should be
made in FS to show in the base costs separately civil works, equipment, and installation.
Preparation of feasibility studies, designs and bidding documents, associated EA, RAP and
administration costs need to be included in the costs estimates. Further support provided during
implementation (construction) has to be shown; this includes construction management and
supervision, training and support for institutional strengthening (including study tours), regular
monitoring stipulated in the environmental management plan and in resettlement process and
related audits of such activities by independent consultants.
ATTACHMENT 2
Data Requirements for Financial Analysis
The following is provided for reference only. To be revised!
Historical Data:
As the landfill gas recovery and utilization project is a newly created entity, it is expected that no
historical data would be available. The first year of projections may likely to be [] budget data, as
[] is expected to be the first year of operation. Much of the operational data will need to be
obtained from similar projects in [] or abroad.
Assumptions (2007 - 2015 Projections):









Sales taxes (%); income taxes (%) (If changes from historical rates expected);
Depreciation rates (if changes from historical rates expected); rates applicable to (i) assets
with life over 15 years; and (ii) under 15 years;
Staff employment numbers: salaried staff and wages staff;
Inflation rates: use data supplied by World Bank (see Attachment 1);
Service population: percent change, and percent to be served;
Solid Waste generation per capita/day (kg);
Capital investment program (non-World Bank-financed);
Government capital contribution to investment programs (as equity or deferred income):
Non-World Bank-financed;
World Bank-financed;
Loans (non-World Bank): long term and/or working capital - interest rates, repayment terms,
commitment charges (%) in any;
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
World Bank loan proceeds: interest rate (%) and terms, including grace period.
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