Radon, conductivity, and pH values for 146 water samples from Snowy Range, Wyoming

1982 ◽  
Author(s):  
J.B. McHugh ◽  
W.H. Ficklin ◽  
W.R. Miller
Keyword(s):  
Water Samples ◽  
Ph Values ◽  
Snowy Range

Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Properties ◽  
Pond Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Urban Region ◽  
Mn Toxicity ◽  
Ph Values ◽  
Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

scholarly journals Physico-chemical attributes of water of Hakaluki Haor, Sylhet, Bangladesh

2016 ◽  
Vol 3 (2) ◽  
pp. 67-72
Author(s):  
Md Tajul Islam ◽  
M Mahfuzur Rahman ◽  
Hassan Mahmud
Keyword(s):  
Water Quality ◽  
Seasonal Variation ◽  
Water Samples ◽  
Water Quality Assessment ◽  
Inorganic Pollutants ◽  
Chemical Parameters ◽  
Ph Values ◽  
Physico Chemical ◽  
Significant Seasonal Variation ◽  
Chemical Attributes

Water quality assessment has been carried out in the Hakaluki Haor of greater Sylhet district during May, 2013 to February, 2014. Water samples were collected from 5 spots during 4 seasons and a total of 15 physico-chemical parameters were studied. Significant seasonal variation was observed in all seasons among physico-chemical parameters. pH values varied from 5.9 - 7.1, water temperature varied from 23.7 – 26.7OC, transference varied from 23-53 cm, TSS varied from 18.1-192 mg/l, TDS varied 25-193.5 mg/l, EC varied from 30-680 ?s/cm , DO content of water varied from 4.6 - 5.6mg/l, BOD varied from 0.2-2.614 mg/l, COD varied from 38-312 mg/l, NO3-N varied from 0.1-30.4 mg/l, NH3 varied from 0.9-2.18 mg/l, alkalinity varied from 12-42 mg/l and PO4 varied from 0.9 -13.4 (mg/l). Agricultural and inorganic pollutants have been observed as the main causes of the Haor water pollution.Jahangirnagar University J. Biol. Sci. 3(2): 67-72, 2014 (December)

scholarly journals Oxygen uptake during mineralization of photosynthesized carbon from phytoplankton of the Barra Bonita Reservoir: a mesocosm study

2008 ◽  
Vol 68 (1) ◽  
pp. 115-122 ◽  
Author(s):  
MB. Cunha-Santino ◽  
SP. Gouvêa ◽  
I. Bianchini Jr ◽  
AAH. Vieira
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Consumption ◽  
Oxygen Uptake ◽  
Dissolved Oxygen ◽  
Water Samples ◽  
Microbial Respiration ◽  
Co2 Concentration ◽  
Ph Values ◽  
Organic Products ◽  
Aulacoseira Granulata

This study aimed to discuss and describe the oxygen consumption during aerobic mineralization of organic products (cells and excretion products) from five unialgal cultures: Cryptomonas sp., Microcystis aeruginosa, Anabaena spiroides, Thalassiosira sp. and Aulacoseira granulata. These species were isolated from Barra Bonita reservoir (22º 29’ S and 48º 34’ W) and cultivated in the laboratory. From each culture, two decomposition chambers were prepared; each chamber contained about 130 mg.L-1 of carbon from water samples of the reservoir. The chambers were aerated and incubated in the dark at 20.0 ºC. The concentration of dissolved oxygen, pH values and electrical conductivity of the solutions were determined during a period of 10 days. The results indicated increases in oxygen consumption for all the solutions studied and also for electrical conductivity. The pH values presented a decreasing tendency throughout the experiment. Oxygen consumption varied from 43 (Aulacoseira granulata chamber) to 345 mg O2 g-1 C (Anabaena spiroides chamber). Decrease in pH values was probably due to increase in CO2 concentration from microbial respiration. Increase in electrical conductivity might be due to the liberation of ions during decomposition. The results demonstrate the potentiality of the studied genera in influencing oxygen availability followed by a die-off event. It also indicates the possibility of changing of the electrical conductivity and pH values in the water column due the aerobic algae mineralization.

Application of an automatic sampling and measurement system to a mountainous stream investigation during rain events

2002 ◽  
Vol 45 (9) ◽  
pp. 213-218 ◽  
Author(s):  
Y. Komai ◽  
S. Umemoto ◽  
T. Inoue
Keyword(s):  
Water Level ◽  
Measurement System ◽  
Water Samples ◽  
Rain Gauge ◽  
Data Logger ◽  
Ph Values ◽  
Automatic Sampler ◽  
Automatic Sampling ◽  
Hyogo Prefecture ◽  
Rain Events

An automatic sampling and measurement system was developed to take water samples efficiently during rain events. The system consisted of an automatic sampler, a rain gauge and a data logger as well as sensors for pH, electrical conductivity (EC), and both water and air temperature. The system was tested in a stream in a forested watershed (5.8 km2) located in the middle of Hyogo prefecture, Japan. The sampling program has been improved gradually. For several rain events of 30 to 157 mm, most water samples were in agreement with the hydrograph from the beginning of each rainfall until the rain had stopped and the water level had begun to fall. The fluctuations in water quality in the samples taken by the automatic sampler during those rain events showed patterns similar to those of water samples taken by hand. There were also no problems with the water level or the EC sensor during the investigation periods, but the pH values were lower than those in the laboratory. The results showed that the system is suitable for taking water samples from mountainous streams during rain events.

scholarly journals Single and Synergistic Effects of Solar Radiation, Water guard and Moringa oleifera Treatments on Bacterial Loads and Physicochemical Parameters of Surface Water in Umur and Bele Streams of Benue State

2018 ◽  
Vol 6 (3) ◽  
pp. 244-251
Author(s):  
G.M. Gberikon ◽  
I.I. Adeoti ◽  
I.O. Ogbonna
Keyword(s):  
Surface Water ◽  
Solar Radiation ◽  
Water Sample ◽  
Water Samples ◽  
Moringa Oleifera ◽  
Synergistic Effects ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Ph Values ◽  
Significant Difference

Bacteriological profiles of surface water samples treated with solar radiation, Moringa oleifera powder and water guard was carried out to ascertain their effectiveness in water treatment. Bacterial loads of the surface water collected from Umur and Bele streams in Gwer East Local Government area samples were determined before and after treatments and characterised using biochemical and molecular methods. Single and synergistic effects of these treatments on water quality were also examined. Bacteriological analysis showed that Umur stream had the highest bacterial loads of 4.47 x 103 cfu/mL while Bele had the lowest counts. There was significant reduction in the mean viable counts recorded for all the water samples (p ˂ 0.05). In the daily bacteria counts, the control water samples gave extremes values. There were no bacteria count recorded following combine treatment in water samples from Bele stream on the fifth day. Molecular analysis based on the 16S rRNA gene sequence showed bacterial strains to be phylogenetically close to bacterial strains which are capable of causing infectious diseases to man. Normal pH values were recorded in Umur stream while low pH values were recorded in Bele streams. Treatment impacted significantly on the pH of the water samples from Umur stream (p ˂ 0.05) while no significant difference was observed with water samples from Bele stream (p > 0.05). Treatment impacted significantly on turbidity in water sample from Umur stream (p ˂ 0.05). Sulphate was found to be within the permissible limit except for water sample from Bele stream which gave mean values within the range of 51.00 to 68.00 mg/L. Treatments impacted no significant difference on sulphate (p > 0.05). Surface water in these rural areas should be thoroughly treated before use. Int. J. Appl. Sci. Biotechnol. Vol 6(3): 244-251

scholarly journals The Factors Influences of pH or Acidity Level in The Urban Area

2018 ◽  
Author(s):  
wiwit suprihatiningsih ◽  
TITIA IZZATI ◽  
kis yoga utomo ◽  
sandi novandi ◽  
nurhakim ◽  
...  
Keyword(s):  
Urban Area ◽  
Water Samples ◽  
Household Waste ◽  
Measuring Instruments ◽  
Traffic Intensity ◽  
Residential Areas ◽  
Industrial Areas ◽  
Ph Values ◽  
Water Ph ◽  
Acidity Level

This research aims to study the acidity or the water’s pH in Bekasi, Bogor, Depok and East Jakarta. The purpose is to determine what kind of factors influence the pH intensity in the above mentioned cities. This research methods are performed by taking water samples in residentials, or industrial areas to be investigated with the pH measuring instruments. This research will analyze any factors that cause changes in water condition of these cities. pH values at residential areas: Bekasi 7.4, Bogor 7.5, Depok 7.7 and East Jakarta 7.8 and and at industrial areas, of the same cities show a remarquable difference such as: Bekasi 8.7, Bogor 8.2, Depok 8.3 and East Jakarta 8.2. These water pH differences are influenced by industries factor, household waste, or the traffic intensity in any of these cities.

scholarly journals Ca2+ removal from water by the use of Na-palygorskite for potential water softening

2021 ◽  
Author(s):  
Gianni Eleni ◽  
Panagopoulos Georgios ◽  
Katsanou Konstantina ◽  
Biniaris Alexandros
Keyword(s):  
Linear Form ◽  
Water Samples ◽  
Room Temperature ◽  
Low Cost ◽  
Water Hardness ◽  
Water Softening ◽  
Initial Concentration ◽  
Ph Values ◽  
Langmuir Isotherm Model ◽  
Ft Ir

Abstract Sodium-treated palygorskite (Na-Pal) sample was investigated for the sorption of Ca2+ ions with the aim of treating water hardness. The effective modification of the mineral with Na+ was verified by XRD and FT-IR techniques. Batch kinetic experiments in standard solutions were performed proving that 30 g/L of Na-Pal were highly satisfactory as the Ca2+ removal reached the 85% for 100 mg/L Ca2+ initial concentration, which is very promising for the softening of moderate or hard waters. The Ca2+ removal found to be pH and temperature independent, with high removal rates at room temperature and common pH values of water samples (pH 4–12), rendering these circumstances ideal for the low-cost maintenance of the procedure that took place within the first 5 min. The linear form of the Langmuir isotherm model expressed better (R2 = 1) the Ca2+ sorption, which means that takes place at specific homogeneous sites of Na-Pal. Thermodynamic analysis proved the non-spontaneous (positive ΔG0), physical, and exothermic nature (ΔH0 = −10.8197 kJ/mol) of the reaction, while the kinetic models proved the chemisorption of Ca2+ by Na-Pal.

scholarly journals Effects of pH and Magnetic Material on Immunomagnetic Separation of Cryptosporidium Oocysts from Concentrated Water Samples

2002 ◽  
Vol 68 (4) ◽  
pp. 2066-2070 ◽  
Author(s):  
Ryan C. Kuhn ◽  
Channah M. Rock ◽  
Kevin H. Oshima
Keyword(s):  
Magnetic Material ◽  
Water Samples ◽  
Environmental Water ◽  
Immunomagnetic Separation ◽  
Deionized Water ◽  
Ph Values ◽  
Cryptosporidium Oocysts ◽  
Optimum Ph ◽  
Effects Of Ph ◽  
Optimal Ph

ABSTRACT In this study, we examined the effect that magnetic materials and pH have on the recoveries of Cryptosporidium oocysts by immunomagnetic separation (IMS). We determined that particles that were concentrated on a magnet during bead separation have no influence on oocyst recovery; however, removal of these particles did influence pH values. The optimal pH of the IMS was determined to be 7.0. The numbers of oocysts recovered from deionized water at pH 7.0 were 26.3% higher than those recovered from samples that were not at optimal pH. The results indicate that the buffers in the IMS kit did not adequately maintain an optimum pH in some water samples. By adjusting the pH of concentrated environmental water samples to 7.0, recoveries of oocysts increased by 26.4% compared to recoveries from samples where the pH was not adjusted.

Kinetic Study of the Decomposition of Nitrite to Nitrate in Acid Samples Using Raman Spectroscopy

1996 ◽  
Vol 50 (8) ◽  
pp. 991-994 ◽  
Author(s):  
J. F. van Staden ◽  
M. A. Makhafola ◽  
D. de Waal
Keyword(s):  
Raman Spectroscopy ◽  
Flow Injection ◽  
Flow Injection Analysis ◽  
Decomposition Rate ◽  
Water Samples ◽  
Acidic Medium ◽  
Storage Conditions ◽  
Ph Values ◽  
The Mean ◽  
The Stability

Raman spectroscopy was employed as a means of determining the rate of decomposition of nitrite in solutions at various pH values. Nitrite decomposes with time in acidic medium, with an increase in decomposition rate as the concentration of acid increases. The mean decomposition rate of 0.625 mol/L NO−2 in 1 mol/L HCl is 1.18 × 10−5 s−1, with t1/2 = 16 h. This rate explains the problems encountered when the flow injection analysis (FIA) version of the Shinn reaction is applied to certain nitrite samples mainly from acidic origin. Nitrite is potentially unstable, and all food and water samples should be analyzed as soon as possible after collection. If it is necessary to store the samples prior to analysis, the effects of the storage conditions on the stability of the analyte must be established in prior trials.

scholarly journals Physicochemical Properties of Tagangu Seasonal River Receiving Abattoir Wastewater Discharge, Aliero, Kebbi State, Nigeria

2020 ◽  
Vol 1 (3) ◽  
Author(s):  
Bilyaminu Garba Jega ◽  
O. O. Adebisi ◽  
S. S. Manga ◽  
A. Muhammad
Keyword(s):  
Dissolved Oxygen ◽  
Water Samples ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Wastewater Discharge ◽  
Upstream Site ◽  
Ph Values ◽  
Standard Procedures ◽  
Abattoir Wastewater

The physicochemical parameters of the thirty water samples collected at the point of discharge of abattoir wastewater as site A (upstream), site B  (downstream) and site C (the irrigation space) of the seasonal River Tagangu were analyzed. The parameters tested include: pH, temperature, turbidity, conductivity, dissolved oxygen (DO), biological oxygen demand (BOD), nitrate, sulphate, phosphate and ammonium. All the parameters were tested following the standard procedures. The pH values obtained ranged from 6.5–7.9; suggestive of suitability of the water for bacterial growth. The temperature values ranged from 21.2–31.2oC; falling within the WHO standard. The turbidity of the water samples ranged from 520–627 NTU, which are exceedingly higher than WHO limit. The conductivity of the water samples ranged from 42.9–624.0 mS/cm; values were far higher than 400.0 mS/cm of WHO standard. The dissolved oxygen (DO) measured between 6.9-19.0 mg/l; which is also greater than WHO standard (6.0 mg/l). Biological oxygen demand (BOD) measured between 312–527.9 mg/l; greater than WHO threshold of 10.0 mg/l. The nitrate contents varied between 39.2–72.3 mg/l; greater than WHO standard (10 mg/l). The sulphate values varied between 45.6–93.9 mg/l; falling within the WHO threshold. However, values greater than 10 mg/l, suggests that the water has been polluted. The phosphate contents observed ranged from 0.435–0.849 mg/l across the three sites, values were higher than 0.3 mg/l of WHO standard. The ammonia contents of the water samples ranged from 27.7–948.5 mg/l; far greater than 0.5 mg/l of WHO standard. The physicochemical study across the three (3) sites shows the typical pollution of the river and rendered the quality of the water hazardous to humans, animals and aquatic lives that could be the users of the water.

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