نتایج جستجو برای: water samples were analysed using standard laboratory methodsthe ew ph
تعداد نتایج: 6425894 فیلتر نتایج به سال:
A study on the contamination of ground water by industrial effluent in different areas Kala Shah Kaku has been conducted. is one Punjab. The major causes drinking such areas. Grounwater samples have analyzed for their characteristics. Standard laboratory techniques employed to determine various parameters from samples. mean values pH, Na+ , and SO4 2- are within permissible limits WHO standards...
this study was mainly designed to investigate and identify the amounts and types of heavy metals in the soils of national iranian oil refining & distribution company in shahrood region and tried to establish a logical relation between the presence of heavy metals and their damage on vegetation. in addition, considering the power of drained soil and due to the proximity of ground water in shahro...
Abstract Background and Objective: Quality control of drinking water is important for maintaining health and safety of consumers, and the first step is to study the water quality variables. This study aimed to evaluate the chemical and physical indicators, water quality variables and qualitative classification of drinking water stations and water sources in Boroujerd. Material and Methods...
A combined household/industrial landfill in a humid and cold temperate climate was characterised with respect to its chemical composition. Cores taken at three randomly chosen sites on the landfill and at different depths at each site were analysed. Carbon, nitrogen and pH were measured by standard laboratory methods. The chemical elements analysed included metals and the non-metals B, P and S....
the present study has been undertaken in a laboratory scale to characterize and investigate pollution potential of textile effluents from depz area in dhaka, bangladesh. collected effluent samples from five different industries were analyzed for physico-chemical parameters using field kits and standard methods, and for metals using flame atomic absorption spectrophotometer (faas). the average p...
Hodnotenie kvality mestskej vody použitím multivariacnej analyzy A data set, obtained for the sake of drinking water quality monitoring, was analysed by multivariate methods. Principal component analysis (PCA) reduced the data dimensionality from 18 original physico-chemical and microbiological parameters determined in drinking water samples to 6 principal components explaining about 83 % of th...
Due to pressure of human activity, urbanization and industrialization, the ground water sources are degraded gradually; therefore pure, safe, healthy and odorless drinking water is a matter in deep concern. There are many pollutants in ground water due to sewage viz., organic and inorganic pollutants, heavy metals, pesticides, fluoride etc; the purpose was to ascertain the quality of water from...
in this research, the spatial distribution of electrical conductivity and ph of springs, ghanats and the base flow concentration places on the streams of central and south-west and central parts of the hamedan-bahar plain were evaluated. using different geostatistical methods such as kriging, minimum curvature, inverse distance, natural neighbor, local polynomial and radial basis functions, 108...
Prevalence and Antibiotic Resistance Pattern of Staphylococcus Aureus Strains Isolated from Food Stuff Soltan Dallal MM1, Agha Amiri S2, Eshraghian MR3, Sabour Yaraghi AA4, Faramarzi T5, Mahdavi V6, Saberpour F7, Fazeli Fard P7, Peymaneh Abedi Mohtasab TP1 1 Dev of Microbiology, Dept of Pathobiology, School of Public Health and Institute of Public Health Research, Tehran University of Medical S...
Suppose we are using a pH meter to test acidity/alkalinity of a solution used in a manufacturing process. The pH of pure water is 7.00. For samples in the pH range from about 5 to 9 the meter gives normally distributed readings with • μ equal to the true pH of the sample and • standard deviation σ = 0.20. The meter is tested each morning to make sure it is operating properly: n = 4 samples of p...
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