This document discusses a project to treat municipal solid waste in Saida, Lebanon. It involves separating the waste into organic and non-organic components. The organic material is processed in an anaerobic digester to produce methane gas and organic fertilizer. The non-organic material such as plastic, paper, glass and metal is recycled. The overall goals are to reduce environmental damage from the current landfill and generate renewable energy from the waste.

1. IENG565– Industrial Waste Management
Instructor: Dr. Dareen Hussein
Presented by: Mouhammad Doueik & Mouhammad Tawbeh
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2. OUTLINES
 Introduction
 Municipal Solid Waste Treatment Center
Saida, Lebanon
 Separation of the MSW into organic and
non-organic components
 Treatment of the organic component in an
Anaerobic Digester
 Production of Methane gas and Organic
fertilizer.
 Conclusion
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3. Introduction
 Waste generation is related to human activities
lifestyles, and environmental awareness.
Rapid urbanization, growing consumption, and limited
environmental awareness are having a compounding
effect on waste generation.
 Waste from our homes is generally collected by our
local authorities through regular waste collection,
or by special collections for recycling.
 It is important to note that no one single treatment
method can manage all the waste materials in an
environmentally effective way.
 Integrated Solid Waste Management (ISWM) takes
an overall approach to creating sustainable systems that
are economically affordable, socially acceptable and environmentally effective.
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4. Municipal Solid Waste Treatment
Center Saida, Lebanon
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 Managed by the Municipality of Saida, the dumpsite
receives about 150 tons of solid waste per day from
15 municipalities (or 250,000 people), the environmental
damages are severe.
 IBC provides a total solution for MSW and sponsors
projects that separate the MSW in their components.
 Organic components are treated biologically via
either aerobic or anaerobic digestion depending
on the quality of the waste.
 Through these processes, organic fertilizer and
electrical energy are produced. Other non-organic
components such as plastic, paper, glass and metals are recycled.
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5.  The sorting and separation area for the treatment
of MSW is designed to handle up to 450 tons of waste
daily in three shifts of eight hours each.
 A typical sorting line includes the following components:
 Receiving (manual or robotic)
 Particle size reduction (mechanical and/or biological)
 Separation (based on magnetism, density, and size)
 Incineration is the most common thermal treatment
process. This is the combustion of waste in the
presence of oxygen.
 This method may have the advantage of :
 reducing the volume of the waste,
 rendering it harmless
 reducing transportation costs
Separation of the MSW into organic
and non-organic components
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6. Treatment of the organic
component in an Anaerobic
Digester
 The process is the degradation of
organic rich fraction by micro-organisms in an
environment starved for oxygen. It can be used to treat
organic solid waste and wastewater of almost any kind.
 The methods used to treat MSW anaerobically
can be classified into following categories:
Single Stage Multi Stage Batch
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Production of Methane gas and
Organic fertilizer.
 Anaerobic Digestion is not only a waste management process but also as source
of renewable energy.
 The digestion provokes the conversion of 50-60 % of the organic load to Biogas
(Methane and CO2) to be converted into energy, while the remainder can be used
as fertilizer.
 The power plant is the first of its kind in Lebanon and will utilize biogas for the
production of electricity and heat to support facility operations. Two systems will
generate 2.12 MW of electricity and 2.38 MW of thermal output, at an overall
efficiency of 84.8% power to run the Center.
 The organic sludge is moved to the maturation area. At the end of the maturation
period 43.000 t/day of organic fertilizer is used by farmers to cultivate their farms.
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8. Conclusion
 Lebanon is too small to accommodate other large scale landfills.
 The study also analyzed a landfill VS bioreactor installation and found
that the costs and benefits were close to equal.
 The advances of AD technology have been supported by legislation.
 Landfills are the source of large emissions of methane to the
atmosphere and methane gas has a global warming potential (GWP)
that is over twenty times that of carbon dioxide.
 As an answer of all challenges, the best practicable environmental
option will be deriving energy from waste and anaerobic digestion (AD).
 The negative point in this plant is the disposal of waste water directly to
the sea without treatment.
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9. Q&A
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