Latakia is a Syrian city that generates approximately 800 tons per day of municipal solid
waste MSW, and the final disposal of MSW is in Al-Bassa open dump with no biogas
capturing or leachate collection systems. Thus, a life cycle assessment appro
ach LCA was
used to determine the optimal strategy of municipal solid waste management. to find the
most eco-friendly scenario, first, the composition study of MSW was conducted in Latakia.
The results of first step are to be utilized as a reliable data source in establishing a
complete picture of the environmental performances of municipal solid waste management
systems with a life cycle perspective. The functional unit of the study was selected as one
ton of MSW generated in Latakia. System boundaries included treatment and disposal of
MSW using different scenarios: the open dump of waste, sanitary landfilling with gas
recovery, and a material recovery facility MRF combined with a sanitary landfill and gas
recovery. Data on the process was gathered from a field study conducted in Latakia, and
from SimaPro 8.3.0 literature and libraries. The data was evaluated with IMPACT 2002+
methodology and the assessed environmental impact categories were climate change,
human health, ecosystem quality, and resources. According to the results, while open
dumping has been confirmed as the worst waste final disposal method, landfilling with gas
recovery and material recovery facility showed better performance and is considered as a
solution towards improved sustainability to overcome the existing waste management
problem.
A field experiment was carried out according to complete randomize block design
(R.C.B.D) with three replicates during three years 2014, 2015 and 2016 in Nafzaoua
region in southern Tunisia, to study the impact of soil reclamation processes on soil
and the production of Daklat El Nour. The results showed a decrease in the salinity
ratio throughout the years of the experiment. In contrast, the palm tree had several
important morphological changes, and the production increased up to 70%.
This study investigated the effect of adding different
percentages of sand to several types of clay soils, Which used as
liners at solid waste landfill sites in order to find the best mixing
ratio (sand - clay).
In this study, the effect of temperature on volume strains in three
types of local clay soils was studied after adding different percentages of
sand for each soil (10%-20%-30%40%-50%) when temperatures change
from (20-60)° C to be used as liners i
n solid waste landfill sites . The
results of the study showed that the mixing of sand with the clay played a
key role in reducing the magnitude of volume strains between (24-27%)
of the value of strains.
It is very important to the design and development of
natural isolating materials Which are used in the cover-up of solid waste landfill, clay soils or mixtures of these soils and some
additions used as an impermeable liner for construction of soli
d
waste landfill, The permeability coefficient of the materials used in the impermeable system is the most important factors to prevent water leakage into the body of landfill site and to prevent the Leachate of leak into groundwater and soil surrounding the landfillsites.
In this research has been the development and design
Oedometer cell to study volumetric distortions occurring in these
soils as a result of exposure of these soils to climatic conditions
during the implementation of impermeable layer or after
implementation due to rising temperatures in landfill because of
biological interactions taking place at these landfill.
It has been modified and the development of Oedometer
cell to become a thermal cell So that it can control the degree of
heat applied to the sample in the ring of device and then measure the volumetric changes in the sample, Oedometer cell has been linked to the permeability test system with variable head to measure the permeability of the testing sample, It was connected with the digital control , measuring and showing system for temperature and load and displacement.
