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Register a new userالتقويم البيئي لوحدات المعالجة الطبيعية للمخلفات البلدية الصلبة – دراسة حالة معمل السماد في محافظة اللاذقية –
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Added by
Damascus University ورقة بحثية
Publication date
2002
fields
Environmental Engineering
and research's language is
العربية
Created by
Shamra Editor
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يقوم نظام المعالجة الحالي للمخلفات الصلبة في محافظة اللاذقية (معمل البصة لتحويل المخلفات إلى محسنات تربة) على ثلاث مراحل: فيزيائية و بيولوجية (تهوية طبيعية) و نهائيـة (إنضـاج). يهـدف البحث إلى تقويم هذا النظام بواقعه الفعلي حيث يشمل تحديد التركيب النـوعي و الكثافـة و الرطوبـة النسبية للقمامة الخام في معمل التسميد، هذا بالإضافة إلى تحديد تغير درجة الحرارة و نسبة الإشباع بالأوكسجين الهوائي خلال عملية المعالجة البيولوجية للقمامة، إذ تم إجراء التحاليـل النوعيـة فـي فترتين مختارتين من العام (2001-2000) ، و قد كانت النتائج محققة للشروط الصحية و ذلك عند إطالة فترة التخمير من الحالة الواقعية بالشكل الأعظمي (8 أيام) إلى حالة بحثية (18 يومـاً). كمـا يعمـل البحث على تحديد التركيب الحبي للسماد النهائي، و قد كانت النتائج الحاصلة هنا مهمـة مـن حيـث ارتفاع نسبة المواد الخاملة في السماد الناعم بنوعيه (أبعاد حبيباته 10-20 ملم و أقل مـن 10 ملـم) مما يقلل من صلاحية استخدام السماد النهائي للأغراض الزراعية، و هذا يؤكد أيضاً علـى ضـرورة إجراء فرز للمواد الأولية القابلة للاسترجاع (بلاستيك، معادن، منسوجات، زجاج) و للمـواد الخاملـة (رمل، طين، حجارة، عظام....) من المخلفات الخام قبل إخضاعها للمعالجة البيولوجية.
No English abstract
References used
Rhyner R. et al. (1995). “Waste Management and Resource Recovery”, CRC press, Inc. pp. 228-230
USA-EPA (1995). “Decision Maker’s Guide to Solid Waste Management”, EPA 530-R-95-023, Washington D.C., pp. 708-717
Tchabanoglous, G. et al. (1993). “Integrated Solid Waste Management”, McGraw-Hill Inc., pp. 684-697
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The problem of waste is getting worse day by day, which may represent a heavy burden on municipalities, that they are unable to process it in most situations. Man is primarily responsible for the waste form, and any scheme for management municipal so
lid waste most take into account the role environmental awareness among the citizens of north sides: the first is to reduce the amount of waste produced through improving people's behavior's and their dietony habits.
The second by working to strengthen its role in contributing to with the municipality in sorting and recycling and willingness to buy recycled good, which contributes to ease costs, and thus improve the management.
The aim of this research to identify the degree of presence environmental awareness about the management of solid waste in the province of Lattakia from the point of view of the mushers of research sample. And to identify the differences in their views depending on the variables studied (sex gender, educational level, place of residence). Research Applied on a sample of the population of the province of Lattakia that number had reached 280 people. The researcher used the questionnaire, which was relied upon in reaching the results of the study, was to ensure the stability of the resolution in two ways: first way retail midterm has reached stability coefficient (0.829), and the second method equation Cronbach alpha was the reliability coefficient was (0.793), a transaction firming acceptable statistically. The study reached the following conclusions: the presence of environmental awareness about the seriousness of solid waste on our lives and consider it the source of contamination and disease. And the existence of a social willingness to contribute to the management of solid waste as sort of domestic or work in environmental associations. The environmental awareness is spreading in the province as a whole, but noted concern for the environment in the city, most of the countryside. As environmental awareness associated cultural level where it was noted the high level of awareness among the educated classes more than illiterate. It has been observed is that to the environmental awareness is equally between males and females.
The research found the most important proposals : attention to publish more environmental awareness among community groups is an educated in addition to spreading the culture of voluntary work in the field of environment an educated.
In developing countries, including Syria solid waste sector contributes to the
emission of greenhouse gases, mainly methane, due to the lack of methods of integrated
management of solid waste in these countries.
The objective of this research is t
o study the feasibility and effectiveness of
mechanical biological treatment of municipal solid waste in a way to reduce methane gas
emissions compared to the way the indiscriminate dumping of municipal solid waste. In
order to reach this goal is the use of the formula contained in the guidelines of the
International Panel on Climate Change (IPCC) in account the emissions of methane from
municipal solid waste sector in the Syrian Tartous in the case of landfilling of municipal
solid waste generated by the province during the years from 2010 until 2015 in random
landfills. In order to compare the account is an assumption that the same amount of
municipal solid waste generated by the province during the years from 2010 to 2015 have
been treated in accordance with the mechanical biological treatment method. It was also
calculate the amount of methane emitted from municipal solid waste entering the
integrated waste treatment center in the Province of Tartous within one year from the
beginning of June 2014 until the end of May 2015, using mechanical biological treatment
method.
This study concluded that the mechanical biological treatment for municipal solid
waste significantly reduces the amount of methane emissions from solid waste sector
compared to the landfill, where the percentage of reduction in the emission of methane
93%.
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.
This research aims to assess and study the evolution of broiler breeding in Syrian
Arab Republic in general and in Syrian Coast and Lattakia Governorate particularly, in
period between 2003 – 2012, and account of production costs for all stages of
broiler
breeding according and analyze these costs, and economical evaluation of production
broiler by using some economic indicators, and clarifying the impact of crisis in Syria the
process of broiler breeding and production in Lattakia Governorate, by comparing the
prices and costs befor and after the crisis.The research shows the production efficiency for
table chicken breeding in Lattakia Governorate amounted to /1.85/ in year 2010, and /1.20/
in year 2014, while the economic efficiencyreached /1.72/ in year 2010, and /1.09/ in year
2014, the return of capital period was 1.3 years in 2010, then it became 9.8 years in 2014.
تستورد سورية سنوياً ما بعادل أو يزيد على إنتاج القطر من الأسماك إذ بلغت كمية الأسماك المستوردة عام 2010 , 28 ألف طن في حين كان الإنتاج المحلي 12 ألف طن فقط
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