Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userIntegrated management of groundwater contaminated with nitrates in Akkar Tartous
الإدارة المتكاملة للمياه الجوفية الملوثة بالنترات في سهل عكار طرطوس
1832
0 31
0
(
0
)
Authors
أحمد وزان( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
يعد تلوث المياه الجوفية بالنترات مشكلة شائعة في العديد من دول العالم وبخاصة الزراعية منها حيث ينشأ التلوث في هذه البلدان بشكل أساسي من الاستخدام الزائد للتسميد في المناطق الزراعية ومن النفايات الصناعية والصرف الصحي وروث الحيوانات، وأيضا" من التثبيت الجوي للنتروجين بواسطة النباتات، بالإضافة إلى مركبات النتروجين التي تنشأ بفعل بعض الصناعات وانبعاثات السيارات وتترسب على الأرض بشكل مواد صلبة. وتعد النترات من المركبات المسرطنة والخطرة على الصحة البشرية إذا ما وجدت بتراكيز مرتفعة، وتأتي هذه الخطورة من تحول النترات الممتص إلى نتريت بفعل بكتريا خاصة في البطن والذي يسبب بدوره ما يعرف بالميثموغلوبينيميا لدى الرضع والحوامل (مرض ازرقاق الرضع ) كما يمكن أن يسبب سرطان المعدة لدى البالغين عبر تفاعله مع الأمينات والأميدات في البطن مشكلاً مواد مسرطنة (النتروزأميدات والنترزوأمينات)، لذلك يجب تطبيق أسس الإدارة المتكاملة للمياه الجوفية في منطقة الدراسة والمحافظة على مستويات منخفضة للنترات في المياه الجوفية المستخدمة للشرب وللري .
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 areas, 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.
References used
JOHN, E. B. Environmental Reauthorization and Regulatory , National Library for Environment, U.S.A. 96-949, 1998
UN . Environment and Development. Rio De Janeiro, 1992, 54
GEORGE, M. Dose – Response Relationship : Principles of Environmental Toxicology. University of Idaho , U.S.A. 2002, 1-32
WHO . Mercury in Drinking Water , Background Document of Guidelines for Drinking Water Quality. WSH, U.S.A. 2005, 18
CURTIS, A. B. Health risk analysis of groundwater nitrate contamination. PHD research , university of Nebraska Lincoln, U.S.A. 2002, 66-143
rate research
Read More
Barada and Auvage basin, experience of limited water resources against
growing of human activities related to increasing of inhabitants, and climate
changes influence on precipitation and water balance. This research focuses on
the definition of p
resent and expected water shortage in Barada and Auvage
basin within the period between 2012-2035 year, and the abilities of its changes
regarding the increasing of the gap between supply and demand, and the role of
integrated groundwater resources management in facing water challenges, so
decreasing of water shortage, taking into account, sustainability of ecosystems,
as an important element of integrated water resources management.
Biological Denitrification process in anoxic fluidized bed reactor is a simple
way to eliminate nitrate – nitrogen that pollute the groundwater.
In this method the biofilm (including organic bacteria) was cultured on the
reactor bed particles, whi
ch we chose granular activated carbon (1-3) mm.
The raw water containing Nitrate ions and bacteria nutrients was pumped
into the bottom of the reactor in an adequate velocity to fluidize the bed
particles holding the biofilm.
Ethanol and DeHydrogenated Sodium ortho phosphate was chosen as
bacteria nutrients, Ethanol as carbonic nutrient and DeHydrogenated
Sodium ortho phosphate as phosphoric nutrient.
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
distri
buted 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.
This study was carried out on 90 broiler chicks which divided into three groups. The first group has been given 0.75 g/L potassium nitrate and the second group was given 1 g/L potassium nitrate with drinking water for 30 days, While the third group w
as regarded as a control.
The birds were reared in same keeping house and feeded with the same ration without any additives and no vaccinations were applied.
All birds were sacrificed and examined by naked eye. Then the thymus gland was fixed by formalin and stained microscopic sections were examined by microscope.
The histological changes in the birds which dosed by 1 g/L and 0.75 g/L of nitrate were similar and the observed changes were the small size of cortex in some lobules, and the cortex were separated from bulb with increase the number of Hassall bodies in the bulb region, also there were vacuoles and reticular cells in different stages of degeneration and edema in the connective tissues in comparison with control group.
These results confirmed that nitrate had toxic effects on the tissues of thymus, and as a sequence reduced the number of T cells which lead to decrease the resistance and Immune response of the birds and retarded the growth rate.
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.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
