scholarly journals Analysis of physico-chemical parameters of soil and population density of Azospirillum isolates from paddy fields of Theni district, Tamilnadu

2019 ◽  
Vol 11 (1) ◽  
pp. 88-93
Author(s):  
Uma Devi S. ◽  
Muthuchelian K.
Keyword(s):  
Electrical Conductivity ◽  
Population Density ◽  
Chemical Analysis ◽  
Phosphorus Content ◽  
Paddy Fields ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Study Results ◽  
Water Holding ◽  
Range Of Values

The rhizosphere region of eight different paddy field areas of Theni district was studied for their physico-chemical analysis of soil and the population density of Azospirillum sp. The study results showed range of values of pH (7.4-7.9), bulk density (1.13g/cm3 -1.60g/cm3), water holding capacity (34.31% - 18.25%), electrical conductivity (1.31 – 1.11), organic carbon (0.93% - 0.71%) . The macronutrient values namely total nitrogen (1.72% - 0.78%), phosphorus content (0.177% - 0.122%) and potassium (1.364% - 1.273%) were observed. Also micronutrients of various paddy fields like Zn (0.9% - 0.5%), Cu (2.3% - 1.7%), Fe (10.9% -8.2%), Mn (6.7% - 5.2%) were recorded, whereas the values of available macronutrients namely nitrogen (295kg/ha - 223kg/ha), phosphorous (89Kg/acre - 49kg/acre), potassium (790kg/acre - 490kg/acre) were noted. The Azospirillum population density was highest in Chinnamanur (192 x105 CFU/g) and lowest in Royyanpatti (91 x105 CFU/g). Thus through this work we were able to isolate and identify novel high yielding Azosprillium sp from paddy fields of Theni district.

scholarly journals Physico-Chemical Analysis of Culture Pond for Induced Pearl Production in Lamellidens marginalis

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Vijiyata Singh Rathour ◽  
Vijay Kumar Yadav
Keyword(s):  
Chemical Analysis ◽  
Pond Water ◽  
Botanical Garden ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Colour Temperature ◽  
Physico Chemical ◽  
Calcium Magnesium ◽  
Healthy Growth

Bioassay experiments were carried out in order to evaluate values of physico-chemical parameters of the cultured pond water for induced pearl production in Lamellidens marginalis. The pond was located at Botanical garden of Bipin Bihari P.G. College, Jhansi. The parameters included for this study were Colour, Temperature, Transparency, pH, Free CO2 , DO, Total Hardness, Calcium, Magnesium and Total Alkalinity of cultured pond water and to maintain them for the healthy growth of mussels during the whole culture period for obtaining designer pearls.

scholarly journals Physico-chemical indicators and identification of selected Slovak honeys based on colour measurement

2012 ◽  
Vol 81 (1) ◽  
pp. 57-61 ◽  
Author(s):  
Jana Kasperová ◽  
Jozef Nagy ◽  
Peter Popelka ◽  
Zuzana Dičáková ◽  
Alena Nagyová ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Chemical Analysis ◽  
Water Content ◽  
Water Activity ◽  
Colour Measurement ◽  
Free Acidity ◽  
Mean Values ◽  
Chemical Indicators ◽  
Council Directive ◽  
Physico Chemical

The aim of study was to characterize 52 samples of Slovak honeys of six types (multifloral, acacia, rape, honeydew, forest and mixed). Physico-chemical analysis of honey included the water content, free acidity, pH, water activity, electrical conductivity, and hydroxymethylfurfural (HMF) content. In addition, the colour of honeys was measured using spectrophotometer and Commission Internationale de I`Eclairage method (CIE L*a*b*); four types of honey were used for identification: multifloral, acacia, rape, and honeydew. Mean values of physico-chemical indicators were as follows: water content 16–21%, acidity 6–42 mekv·kg-1, pH 3.68–5.15, water activity 0.505–0.667, electrical conductivity 0.155–1.585 mS·cm-1 and HMF content 0.17–78.5 mg·kg-1. The highest HMF content was found in forest honey with one sample above the limit established by Council Directive 2001/110/EC. The colour of Slovak honeys analysed in this study was very variable and ranged from pale yellow to dark brown. Differences of physico-chemical indicators and colour of honey samples were found to be significant (P < 0.05). The CIE L*a*b* methods can be used for identification of selected honey samples. This is the first similar study on Slovak honey.

scholarly journals Physico-chemical Parameters of Honey From Melipona mondury Smith, 1863 (Hymenoptera: Apidae: Meliponini)

2018 ◽  
Vol 10 (7) ◽  
pp. 196 ◽  
Author(s):  
Rogério Marcos de Oliveira Alves ◽  
Jacqueline Lemos Viana ◽  
Henrique de Abreu Cerqueira Sousa ◽  
Ana Maria Waldschmidt
Keyword(s):  
Electrical Conductivity ◽  
Water Activity ◽  
Reducing Sugars ◽  
Chemical Properties ◽  
Northeastern Brazil ◽  
Chemical Parameters ◽  
Technical Regulation ◽  
Mean Values ◽  
Physico Chemical

The physico-chemical properties of honey produced by the stingless bee Melipona mondury from Atlantic Forest in the state of Bahia, northeastern Brazil were evaluated. The evaluated characteristics included: water content, electrical conductivity, pH, acidity, water activity, ashes, diastase, hydroxymethylfurfural (HMF), reducing sugars and saccharose values. The honey samples showed mean values of 29.18% for moisture; 391.5 μS for electrical conductivity; pH of 4.06; 34.3 meq kg-1 for acidity; 0.73 for water activity; 0.18% for ashes; 4.05 (Goethe unit) for diastase; 1.60% for HMF; 65.42% for reducing sugars; and 2.14% of saccharose. Only the diastase activity was above the limits accepted by the Technical Regulation for Identity and Quality of Honey (Brazilian Ministry of Agriculture and Supplies). Most parameters are according to those reported in honeys from other species of stingless bees in Brazil.

Effects of Industrial Effluents on the Population Density of Soil Microarthropods

1978 ◽  
Vol 5 (3) ◽  
pp. 229-231 ◽  
Author(s):  
Udai Raj Singh ◽  
B. D. Tripathi
Keyword(s):  
Population Density ◽  
Chemical Properties ◽  
Industrial Effluents ◽  
Ion Concentration ◽  
Present Communication ◽  
Hydrogen Ion Concentration ◽  
Soil Microarthropods ◽  
Physico Chemical ◽  
Total Fauna ◽  
Water Holding

The present communication gives the results of a quantitative study of soil microarthropods in relation to pollution induced by a chemical and fertilizer factory at Sahupuri, Varanasi, India. The effluent discharged from the factory has been reported to affect adversely the physicochemical properties (porosity, water-holding capacity, hydrogen ion concentration, total nitrogen, exchangeable sodium, and carbonate) of the soil. The samples were processed in Ladell's apparatus by modified floatation technique for faunal estimation. The population density of soil microarthropods has been found to be poor in the effluent-affected soil (28,107/m2) as against the control soil (39,217/m2) of a near-by area. The Acarina formed the most prevalent group in both the control and polluted habitats, constituting 47.8% and 53.6% of the total fauna, respectively. The abnormal physico-chemical properties of the soil have been indicated as being partly responsible for the faunal depletion.

scholarly journals Preliminary Study on Physico-Chemical Parameters and Phytoplankton of Chiffa River (Blida, Algeria)

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Fella Hamaidi-Chergui ◽  
Mohamed Brahim Errahmani ◽  
Fatouma Benouaklil ◽  
Mohand Said Hamaidi
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Organic Matter ◽  
Water Samples ◽  
Chemical Parameters ◽  
North West ◽  
Quality Guidelines ◽  
Physico Chemical ◽  
Preliminary Study ◽  
Monthly Variations

The present study was carried out to determine the monthly variations of physico-chemical parameters in water samples from Chiffa river at Blida, North West of Algeria from April to August 2006. Water samples were analyzed for physico-chemical parameters and the results showed their monthly variations as follows: pH 7.5-7.6, electrical conductivity 0.87–1.06 mS·cm−1, nitrate 0–7.00 mg·L−1, nitrite 0–0.28 mg·L−1, ammonia 0–0.03 mg·L−1, phosphate 0–0.94 mg·L−1, sodium 19.3–47.0 mg·L−1, chloride 35.7–52.0 mg·L−1, calcium 90.3–104.7 mg·L−1, magnesium 27.3–37.7 mg·L−1, organic matter 0.4–3.9 mg·L−1, chlorophyll a 0.7–132.3 mg·L−1, and bicarbonate 219.3–248.7 mg·L−1. The analyzed physico-chemical parameters were almost not exceeded the maximum permissible limit of WHO and Algerian Water Quality Guidelines. A total of 53 taxa belonging to 4 divisions have been identified, including Chlorophyta (52.83% of taxa), Bacillariophyta (28.30%), Cyanophyceae (16.98%), and Charophyta (1.89%).

scholarly journals Assessment of Physico-Chemical Parameters of Soil of Muthannan Kulam Wetland, Coimbatore, Tamil Nadu, India

2014 ◽  
Vol 2 (3) ◽  
pp. 302-304 ◽  
Author(s):  
K Manimegalai ◽  
S Sukanya
Keyword(s):  
Electrical Conductivity ◽  
Physicochemical Parameters ◽  
Tamil Nadu ◽  
Anthropogenic Activities ◽  
Reliable Index ◽  
Chemical Parameters ◽  
Bottom Soil ◽  
Physico Chemical ◽  
Nitrogen Phosphorus

Soil serves as a more reliable index for productivity than water qualities. The productivity of any pond depends largely on the quality of bottom soil that is “store house of nutrients.” The present paper deals with the study of physicochemical parameters like organic carbon, pH, Electrical conductivity, Nitrogen, Phosphorus, Potassium of soil from Muthannan Kulam,Coimbatore (March 2013- May 2013). Analysis for the above parameters indicated contamination of the soil quality due to some anthropogenic activities. DOI: http://dx.doi.org/10.3126/ijasbt.v2i3.10769Int J Appl Sci Biotechnol, Vol. 2(3): 302-304  

Chemical Analysis of Ground water in Hinganghat, District Wardha (Ms), India

2021 ◽  
Vol 1 (4) ◽  
pp. 377-381
Author(s):  
Gajbhiye RG ◽  
Mahakale RG ◽  
Raut RD ◽  
Dhakre MN
Keyword(s):  
Electrical Conductivity ◽  
Chemical Analysis ◽  
Water Sample ◽  
Ground Water ◽  
Water Samples ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Irrigation Purpose ◽  
Total Dissolved Solid

Ground water is one of the most useful water sources found in earth. The importance of the chemical analysis underlies the fact that the chemistry of ground water can directly be rated with the source of water, climate and geology of the region. Contamination of such water is responsible for creating health hazards. In this paper chemical analysis of the ground water has been carried out for Hinganghat in Wardha district. The water sample collected from different location in Hinganghat, Wardha (India). The ground water samples were analyzed for the following chemical parameters; pH, Electrical Conductivity (EC), Total Alkalinity (TA), Total Hardness (TH), Chloride, Nitrate, Sulphate, Dissolved Oxygen (DO) and Total Dissolved Solid (TDS). The results Obtained shown that it is free from anomalies and suitable for human and cattle consumption as well as irrigation purpose in Hinganghat, Wardha districts, Maharashtra, India.

Application of CVCC Technique for Measuring Electrical Conductivity of Metallurgical Slags and Molten Salts

2016 ◽  
Vol 682 ◽  
pp. 321-326 ◽  
Author(s):  
Piotr Palimąka ◽  
Stanislaw Pietrzyk ◽  
Tomasz Sak
Keyword(s):  
Electrical Conductivity ◽  
Molten Salts ◽  
Chemical Engineering ◽  
Industrial Process ◽  
Chemical Parameters ◽  
Metals Recovery ◽  
Physico Chemical ◽  
Metallurgical Slags ◽  
Great Energy ◽  
Good Agreement

Electrical conductivity is one of the most important physico-chemical parameters in chemical engineering as well as in the technology of many industrial process. Especially in the metals production by the electrolysis from molten salts or metals recovery from slags in the electric furnaces, where the great energy is needed.In this work the continuously varying cell constant (CVCC) technique for measuring conductivity of non-ferrous slags and molten salts was used. This is high-accuracy technique, which requires no calibration. The technique was verified by measuring conductivity of standard KCl solution and molten KCl. A good agreement was obtained between measured and commonly accepted literature values. The results of measured conductivity of KF-AlF3 melts were compared with data obtained by other authors. It was proved that CVCC technique can measure accurately the electrical conductivity of high-temperature molten salts and metallurgical slags.

scholarly journals Comparative account of water chemistry of three perennial rivers of Morang district, Province No. 1, Nepal

2016 ◽  
Vol 6 (1) ◽  
pp. 57-62
Author(s):  
B. R. Subba ◽  
N. Balmiki ◽  
P. K. Yadav
Keyword(s):  
Electrical Conductivity ◽  
Comparative Study ◽  
Water Chemistry ◽  
Total Dissolved Solids ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Spring Season ◽  
Chemical Parameters ◽  
Total Phosphorous ◽  
Physico Chemical

A comparative study of water chemistry of Keshaliya, Shinghiya and Lohandra rivers of Province No 1, Morang District, Nepal was performed for one spring season in 2016. Altogether 18 physico-chemical parameters were selected to be determined for each river during spring season. The values of each parameter recorded for the above rivers were pH (6.59 to 8.08), temperature (22.4 to 30.30C), electrical conductivity (336 to 537 NTU), DO (4.17 to 10.65 mg/l), total dissolved solids (168 to 268.5 mg/l), total hardness (145 to 204 mg/l), calcium hardness (106 to 180 mg/l), total alkalinity (172 to 226 mg/l), Silica (180 to 393 mg/l), total nitrogen (4.2 to 14 mg/l) total phosphorous (0.07 to 0.45 mg/l), BOD (4.24 to 126.27 mg/l), COD (9.20 to 252 mg/l), nitrate (<0.05 to 0.18 mg/l), chloride (4 to 36 mg/l), magnesium (4.13 to 21.4 mg/l) and calcium (12.15 to 72.29 mg/l).

scholarly journals Biodegradation of polymer effluent and its reutilization for growth of ornamental plant

2018 ◽  
Author(s):  
C. M. Noorjahan ◽  
R. Harinee ◽  
U. Irfana Fathima ◽  
S. Kalaiselvi ◽  
A. Raziya ◽  
...  
Keyword(s):  
Waste Water ◽  
Escherichia Coli ◽  
Ornamental Plant ◽  
Organic Load ◽  
Chemical Parameters ◽  
Untreated Sample ◽  
Waste Products ◽  
Physico Chemical ◽  
Study Results ◽  
High Pollution

One of the most challenging current problems arising with rapid industrialization, is the proper disposal of waste products. Polymer effluent released from polymer industry is one of the major sources of environment pollutants as the concentration of harmful materials in the waste water was extremely high. Bioremediation offers a simpler, cheaper and more environment friendly option to traditional methods of remediation. Bioremediation is the microbial clean-up approach. Hence the present study was carried out to analyse Physico-chemical parameters like colour, odour, pH, EC, TSS, TDS, BOD and COD of untreated polymer effluent and was degraded using bacteria. The results of the analysis of the physico chemical parameters revealed that untreated polymer effluent was yellow in colour with pungent odour. pH was alkaline with high organic load such as EC, TSS, TDS, BOD and COD which were higher than the permissible limits of CPCB (1995) for its disposal indicating high pollution potential of the waste. Since the untreated polymer effluent has high organic load, disposal of such waste water into the environment without proper treatment pose hazards to environment. Hence Escherichia coli was used to degrade the untreated polymer effluent for a period of 96 hrs in a laboratory scale study. Results of analysis of degradation of the effluent revealed that colour and odour of 100% untreated sample has changed to almost colourless and odourless nature. pH has changed from alkaline to neutral and also showed marked reduction (12.35% - 99.5%) of parameters in biotreated sample using Escherichia coli. The biotreated sample was reused for the growth of ornamental plant, Impatiens balsamina. The results of the growth study revealed that growth rate of the plant was increased in biotreated sample than in untreated sample.

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