نتایج جستجو برای: water samples were analysed using standard laboratory methodsthe ew ph

تعداد نتایج: 6425894  

Ataallah Mazidi, Homa Hakimian,

The use of high performance liquid chromatography (HPLC) grade water is very important for laboratory studies, especially food quality control. These studies have a great impact on diagnosing food health. Food health improves the health of the community and these two parameters are closely related. HPLC grade water is ultra-pure water with low UV absorption ability. This water is often purified...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...

Journal: :journal of research in health sciences 0
rasool yousefi-mashouf mohammad reza samarghandi alireza rajabinegad maryam ahmadi faezeh nazarieh

background: many studies have been showed that certain illnesses including fungi and bacterial infections can be transmitted to human by contaminated swimming pools water. the main objective of the present study was to detect microbial (bacterial and fungi) and chemical (ph and chlorine levels) pollutions of the all swimming pools water in hamadan city, iran . methods: this study was a cross-se...

2010
P K Raghu Prasad M Nisha Priya

Nitrate (NO3) contamination of groundwater is a major concern throughout intensive agricultural areas. In the present laboratory scale study, an electrolytic reduction method employing copper cathode and insoluble triple mixed oxide anode was studied for the denitrification of groundwater in a divided cell. Influence of process parameters such as pH, current density and time were studied and th...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
hajar ziae hezar jaribi researchers of environmental health center and members of scientific staff in mazandaran university of medical sciences zabihollah yousefi researchers of environmental health center and members of scientific staff in mazandaran university of medical sciences reza ali mohammadpour researchers of environmental health center and members of scientific staff in mazandaran university of medical sciences

introduction : direct relationship has been reported between the prevalence of some parasitic diseases and the presence of microorganisms in water. there are possible contamination of water resources, due to the climate changes and increasing the groundwater level. the purpose of this research was to determine the contamination rate of drinking water supplies to parasites in mazandaran province...

2011
Masoumeh Moslemi Zahra Khalili Soraya Karimi Mohammad Mostafa Shadkar

BACKGROUND AND AIMS As a result of poor quality of public water supply in many countries, people have recently turned to bottled water consumption, the fluoride content of which is not generally consistent among different brands. This study sought to measure the fluoride concentration of public water supply in comparison with commercial brands of min-eral bottled water available in Tehran, Iran...

Journal: :journal of health sciences and surveillance system 0
leila rezaei hormozgan environmental and occupational health engineering research center- hormozgan university of medical sciences bandar abbas health care center, hormozgan university of medical sciences vali alipour instructor of environmental health engineering, school of health, hormozgan university of medical sciences, bandar abbas, iran. sakine shokooheyan hormozgan environmental and occupational health engineering research center- hormozgan university of medical sciences environmental health engineering dept, faculty of health, hormozgan university of medical sciences amin ghanbarnejad hormozgan environmental and occupational health engineering research center- hormozgan university of medical sciences

background: pre-chlorination of raw water containing natural organic matters may lead to forming harmful disinfection by-products such as trihalomethanes (thms), the measurement of which needs expensive advanced analytical instruments. this study was conducted to anticipate thms formation potential in bandar abbas drinking water system using cheap and simple experiments and a mathematical model...

Journal: :iranian journal of health sciences 0
saeid mahdavi omran infectious diseases and tropical medicine research center, babol university of medical sciences, babol, iran ramazan rajabnia department of medical parasitology and mycology, school of medicine, babol university of medical sciences, babol, iran seyed mohammad bagher norozian amiri department of medical parasitology and mycology, school of medicine, babol university of medical sciences, babol, iran mohammad reza yousefi department of parasitology, school of veterinary medicine, babol branch, islamic azad university, babol, iran seyed javad moosavi department of medical parasitology and mycology, school of medicine, babol university of medical sciences, babol, iran mir masaud hosseini kiafarin industrial institute, babol, iran

abstract background and purpose: according to the reported problems in area of the inappropriateness of water quality which used for washing and staining of car apparatuses in a car factory, this research was carried out for identification of physical, chemical, and microbiological characteristics of the consumed water in babol car factory, iran. materials and methods: physical and chemical par...

ژورنال: طلوع بهداشت یزد 2016
ابراهیمی, اصغر, احرامپوش, محمدحسن, ترابی, حسن, طالبی, پروانه, مختاری, مهدی,

Introduction: Carwash are industries that consume large amounts of water and results wastewater that have different type of pollutents(detergents, oil and grease, metals, etc.).  Enough treatment of carwash wastewater is important and could be protect surface and ground water. Therefore, in this study ozonation process was used for carwash wastewater that generated from washing the cars in...

2017
Roya Mirzaei Masoud Yunesian Simin Nasseri Mitra Gholami Esfandiyar Jalilzadeh Shahram Shoeibi Hooshang Shafieyan Bidshahi Alireza Mesdaghinia

BACKGROUND Antibiotic residues are being constantly identified in environmental waters at low concentration. Growing concern has been expressed over the adverse environmental and human health effects even at low concentration. Hence, it is crucial to develop a multi-residues analytical method for antibiotics to generate a considerable dataset which are necessary in the assessment of aquatic tox...

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