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Register a new userThe description of the Physical properties of some waste materials, to determine the possibility of recycling
توصيف الخواص الفيزيائية لبعض المواد المستهلكة لتحديد إمكانية إعادة تدويرها
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يقدم هذا البحث دراسة التجريبية لتحديد الخواص الفيزيائية و بعض الخواص الأخرى الهامة لعدة مواد مستهلكة, بغية تحديد المجال الذي سيتم فيه إعادة تدوير تلك المواد. اجريت الاختبارات على خمس مواد مقترحة و هي: كوز الذرة الخشبي, قشر الفول السوداني, القش, كوز الصنوبر, و عيدان ساق نبات القندريس.
This paper presents an experimental study to determine the physical and some other important properties of certain waste materials, in order to identify the appropriate field of their recycling. The experiments have been carried out using five proposed materials, namely: corn cob, peanut peel, straw, pine cone, and sticks of the stem Thistle Syrian plants.
References used
SAMPATHRAJAN A. et al., 1992- Mechanical and thermal properties of particle boards made from farm residues. Journal of Bioresour Technol, 40, 249–51
Nienhuys S., 2004- Plastic Waste Insulation Re-Use of PET for High Altitude Houses. Report of HUYS ADVIES, Kathmandu, Nepal, November, 3, 110
PRANEE L. et al., 2008- New insulating particleboards prepared from mixture of solid wastes from tissue paper manufacturing and corn peel. Journal of Bioresour Technol,99, 4841–5
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This study was conducted during the 2011-2012 and 2012-2013 seasons in
Abu-Jarash orchards area in Damascus to identify the effect of improved
organic materials as sludge, manure and compost in improving some soil
physical characteristics and whea
t productivity. Results showed that the three
types of organic material affected the physical characteristics of the studied
soil. They decreased its bulk density, increased its total porosity and increased
its ability of holding water at field capacity. Results also showed that the
compost of city wastes was the best in improving soil physical properties. The
three organic materials, particularly the sludge increased the total productivity
of wheat (Sham3).
Plastic and rubber products considered of being a great importance to humans, but
their residues and wastes are a real environmental disaster. They are dumped in fields,
streams and forests or buried in large landfills that pose a serious hazard th
at needs to work
on solve it in the best possible way.
On the other hand, the economic problems caused by the erosion of concrete cement
have made it the major problem of infrastructure in the industrialized countries. Over the
past three decades, this problem has reached alarming proportions, which led to high repair
costs, whether in concrete or in reinforcing steel, Especially acidic media due to concrete
permeability of acid rainwater, where these costs exceeded initial construction amounts in
some cases.
This paper deals with the recycling of used tires and some types of plastic waste to
be used in the preparation of insulating materials for water and heat at a low cost compared
to the insulation materials currently used in the construction process, in addition to the
preparation of floor tiles for internal and external use.
The results showed the possibility of getting at a wide rang of board with different properties, and all investigated percentage had special properties which to use in industrial application, also the result showed the possibility to produce these bo
ard without pretreatment of particles wood or without addition any virgin plastic to RLDPE
The results showed the possibility of getting of a wide spectrum of boards with different properties, and all studied percentages had special properties which allow them to use in industrial application, also the result showed the possibility to produce these boards without treatment of the wood particles or without addition any virgin plastic to RLDPE
In this research a study was carried out to evaluate the effect of
adding random distribution plastic waste fiber inside soil on the
geotechnical properties of clayey soil. The research is based on
experimental method through many stages.
A proper matching of agricultural machinery with properties of materials forms the
essential requirements which lead to best performance of machine.
To achieve that goal, availability of data and precision analysis on engineering and
physical prop
erties of these materials is required. This forms important and necessary data
base for the design, development and structure of agricultural machinery and equipments,
control and analysis of machines and determination of efficiency of machines.
This research was carried out to study some engineering and physical properties of seeds of
common Syrian crops to be used in the design and development of some agricultural
machinery and equipments.
Results provided the shapes and dimensions of cells of feeding devices for planting seeds
of some crops namely, wheat, maize, lentil, pea, chick-pea, kidney bean, broad bean and
cotton.
In addition a set of empirical equations were established to be used to predict, with
reasonable accuracy, the physical properties of crops seeds based on measurement of any
of three dimensions (length, width and thickness).
الخواص الهندسية للبذور
الخواص الفيزيائية للبذور
أبعاد البذور
جهاز التلقيم
خلايا التلقيم
جهاز التلقيم ذو الأسطوانة المموجة
آلة البذار
آلة التسطير
Engineering Physical properties of seeds
Physical properties of seeds
Dimensions of seeds
Feeding device
Cells of feeding
Fluted forced feed
Planter
Grain drill
المزيد..
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