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Register a new userHydrochemical study of free groundwater in a part of Damascus's Ghouta
دراسة هيدروكيميائية للمياه الجوفية الحرة في جزء من غوطة دمشق
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Aِl-Baath University ورقة بحثية
Publication date
2014
fields
Geology
and research's language is
العربية
Created by
Shamra Editor
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صنفت المياه الجوفية الحرة المتاحة من الناحية الهيدروكيميائية، و حددت صلاحيتها للاستخدامات المختلفة، في جزء من غوطة دمشق ذات المناخ الجاف، و التي تعاني من عجز مائي. حيث تمت الدراسة على عينات مياه جوفية مأخوذة من 20 بئر موزعة على كامل منطقة الدراسة. و أظهرت النتائج أن المياه الجوفية تصنف هيدروكيميائياً ضمن المياه الكلسية، و هي غير صالحة للشرب بمجملها، و غير صالحة للاستهلاك المنزلي في جزء واسع من منطقة الدراسة. لكنها صالحة للري الزراعي و ينصح باستخدامها لري المزروعات ذات المقاومة الضعيفة للملوحة. و من غير المفضّل استخدامها للصناعات عموماً، لكن تعد مناسبة جداً لأعمال البناء و البيتون.
An available free groundwater were classified hydrochemical, and determined its fitting for general uses in a part of Damascus's Ghouta, which suffers water deficiency, where the study carried out on groundwater samples taken from 20 wells distributed on all study area, the results show that groundwater classified hydrochemical as calcic water and non potable, and unsuitable for domestic consumption in broad part from study area, but arable and recommend to use in irrigation plants that have weak resistant to salinity, and not preferable to use in industry generally, but it's good for building and concrete works.
References used
AL-Ahmadi. M, 2013. Hydrochemical characteristic and evaluation of groundwater quality in Wadi As Sab'an, western Saudi Arabia. International Journal of Scientific & Engineering Research Volume 4, Issue 1, January-2013. ISSN 2229-5518
Davis and Dewiest, 1966. Hydrogeology. John Willy and Sons, NewYork, 463p
أكساد، 2008 . تقرير مشروع النموذج الرياضي لحوض غوطة دمشق. المجلد . الأول، التقرير الهيدروجيولوجي، دمشق، 2008
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Groundwater Samples were collected from seven locations distributed in
Lattakiabasin during the winter and summer seasons of 2013.All samples were treated
chemically and calculated statistically to evaluate the quality of the studied water and its
chemical properties. The aim was to assess the suitability of the water to be potable and to
determine the predominant hydrogeology status.
It was noticed that the concentrations of the detected major elements were within
allowed limits cited for drinking and irrigation waters. Also, it was found that there were
no sharp changes either in salinity or in geochemical type of the water toward groundwater
movement. Furthermore, the groundwater in the studied locations was largely influenced
by lithological composition of aquatic holder. In general, these waters were found to be
uncontaminated with marine waters with exception of the location called " wall of Al
Mena Al Baida" that is located near the sea. This has been proven by calculation of some
of geochemical proportions. Also, this study proved that the aquatic flows in the different
water holders of Latakia basin have a hydrolytic relationship among them. Consequently,
these flows comprise a uniform aquatic flow with homogenous properties in most of its
parts. The direction movement of this uniform flow was identical to the general decline of
the zone mostly.
Natural changes in the level of ground water through time is gaining great
importance in evaluating the water system and to provide a lot of information about
groundwater movement , which allows the assessment of the water situation public water
l
ayer in the study area .
We adopted our measurements in groundwater levels frequencies on a private
network monitoring hydrogeological She is the author of 26 wells distributed over the
entire area of the region studied were carried out in some measurements for a period of six
years. The study found that groundwater system of climate type (water division line) is
directly linked to seep from rainfall and seepage from canals and irrigation water plays a
significant role in the pose, which is characterized by Baltkareh and periodic quarterly in
the annual changes of the levels, and the stability and balance in the conditions of these
elevations, and the general direction of movement of groundwater will be from the east and
north-east towards the west and southwest and Askew Hydraulic 0.005 a faddish
topographic situation and the general trend of the cracks and fissures in the area.
The contamination of groundwater with nitrates is a common problem in many countries of
the world, especially the agricultural ones where the pollution originates in these countries
mainly from the use of excessive fertilization in agricultural are
as, industrial waste,
sewage, animal dung, and the "installation of air nitrogen by plants, the nitrogen
compounds that arise due to some industries and vehicle emissions which are deposited on
the ground in solids.
The nitrate compounds are carcinogens and hazardous to human health If they were in
high concentrations. The risk of this turning into nitrite nitrate uptake by the bacteria,
especially in the abdomen which in turn causes what is known as Balmithmoglubenemea
in infants and pregnant women (Infant disease blueness). It can also cause stomach cancer
in adults through its interaction with amines and amides in the abdomen, forming
carcinogens (Alntrozzomedat and Alentrzoaminat). Therefore, you must apply the
foundations of the integrated management of groundwater in the study area to maintain
low levels of nitrate in groundwater used for drinking and irrigation.
This research aimed to study the theoretical basis of the pollutant migration
to the aquifer and to carry out some experiments concerning the migration of
some kinds of pesticides in order to calculate the related coefficients. Hence, the
research
concentrates on testing the basic methods of migration to the ground
waters, finding the physico – chemical reactions between pollutants and aquifer
and finding the differential equations which express the movements to the
ground waters which can be applied on the experimental data. It also, includes
the mechanism study of pollutant migrations through the unsaturated layer is
regarded as a passage of the pollutants to the ground waters, and the
experimental methods of the calculation of the basic migration coefficient.
Groundwater is one of the major sources of exploitation in arid and semi-arid
regions, Thus for protecting groundwater quality, data on spatial and temporal distribution
are important. Geostatistics methods are one of the most advanced techniques f
or
interpolation of groundwater quality. In this research, IDW, Kriging methods were used for
predicting spatial distribution of nitrate NO3
-. Data were taken from 21 wells study within
eastern Damascus's Ghouta.
After normalization of data, variograme was drawn. The less RSS was used, so
Spherical model was the best. By using cross-validation and RMSE, the best method for
interpolation was selected; Results showed that Kriging method is superior to IDW
method.
there is a big spatial dependence for nitrate variable that amounts to 2.2 %. Finally,
maps of distribution of nitrate in groundwater were executed by Kriging method, in
addition to executed maps that show goodness of groundwater for drinking and irrigation.
Then it was prepared map of Probability Map of nitrate at threshold 50 mg/l.
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