scholarly journals Comparative study on physico chemical parameters of soil and water among three aquatic successional stages at Jahangirnagar University campus

2013 ◽  
Vol 2 ◽  
pp. 26-34
Author(s):  
Sharmin Sultana ◽  
ME Huda
Keyword(s):  
Comparative Study ◽  
University Campus ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Successional Stages ◽  
Soil And Water

Jahangirnagar University Environmental Bulletin, Vol.2, 26-34, 2013 DOI: http://dx.doi.org/10.3329/jueb.v2i0.16327

scholarly journals A study on the abundance of zooplankton of a culture and a non-culture pond of the Rajshahi University campus

1970 ◽  
Vol 27 ◽  
pp. 35-41 ◽  
Author(s):  
Sharmeen Rahman ◽  
M Afzal Hussain
Keyword(s):  
Management Practices ◽  
University Campus ◽  
Total Zooplankton ◽  
Chemical Parameters ◽  
Important Food ◽  
Physico Chemical ◽  
Bicarbonate Alkalinity ◽  
Carbon Dioxide Co2 ◽  
Zooplankton Production ◽  
Important Food Item

Zooplankton constitute important food item of many omnivorous and carnivorous fishes. The study was conducted with an aim to study the zooplankton production including physico-chemical parameters with an emphasis to the existing management practices taken by the operators. The study was carried out in a culture and a non-culture pond of Rajshahi University campus was carried out from September, 2004 to February, 2005. Monthly fluctuations of some physico-chemical parameters were noted. The ponds showed alkaline in nature with moderate bicarbonate alkalinity. Diurnal change of water temperature, free CO2 and dissolved Oxygen were also studied. Four groups of zooplankton were identified, of which copepods (1260 units/l and 973.33 units/l in pond-1 and pond-2 respectively) were most dominant. A total of 9 genera of zooplankton were identified of which Cyclops (68.25% and 60.28% of total copepods) was most abundant in both ponds. Total zooplankton showed positive correlation with pH, carbonate alkalinity (CO3) and bicarbonate alkalinity (HCO3) in both ponds and DO, carbon dioxide (CO2) in pond-1. Present findings indicated that the culture pond showed better result than that of the non-culture pond regarding zooplankton production. Key words: Zooplankton, culture pond, non-culture pond, physico-chemical parameters.   doi:10.3329/ujzru.v27i0.1951 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 35-41

scholarly journals Evaluation of Cr(VI) Reducing Capability of Shewanella putrefaciens (MTTC8410) and Optimization of Operational Parameters

2020 ◽  
Vol 14 (4) ◽  
pp. 2715-2727
Author(s):  
Annadurai Sakthi Thesai ◽  
Rajalingam Sangeetha ◽  
Lakshmanan Ashokkumar ◽  
Ramachandran Palanivelan ◽  
Sundaram Rajakumar ◽  
...  
Keyword(s):  
Shewanella Putrefaciens ◽  
Trivalent Chromium ◽  
Tannery Effluent ◽  
Operational Parameters ◽  
Chemical Parameters ◽  
Bacterial Growth Rate ◽  
Batch Mode ◽  
Physico Chemical ◽  
Ph Conditions ◽  
Soil And Water

Bioremediation is an important technology to remediate the chromium (Cr) contaminated soil and water. In this study, Shewanella putrefaciens (MTTC8410) was used to investigate the influence of carbon concentration, pH, and temperature on reduction of hexavalent chromium [Cr(VI)] into trivalent chromium [Cr(III)]. The increased bacterial growth rate was significantly reduced the Cr(VI) concentration. In batch mode experiments, 1% starch recorded the highest reduction of Cr(VI) (90%) followed by 1% glucose (88% reduction) and a reduction of 77% was by 1% cellulose. By using various pH conditions the maximum Cr(VI) reduction was achieved at pH 7.0. In this experiment the maximum Cr(VI) reduction (75%) was observed at 35°C, followed by 30°C with 62% of Cr(VI) reduction. Bioreactor analysis revealed the highest reduction of Cr(VI) (88%) in unsterile tannery effluent. The significant levels of physico- chemical parameters were reduced in unsterile tannery effluent, as compared to the sterile tannery effluent. The experimental results revealed that the S. putrefaciens (MTTC8410) could be used as a potential bacterial strain for reduction of Cr(VI) from contaminated groundwater.

scholarly journals Comparative Analysis of some Water Quality Parameters of three Lakes in Jahangirnagar University Campus, Savar, Bangladesh

2016 ◽  
Vol 43 (2) ◽  
pp. 239-250
Author(s):  
Md Ashrafur Rahman ◽  
Sabira Sultana ◽  
Md Abdus Salam
Keyword(s):  
Water Depth ◽  
Quality Parameters ◽  
Total Alkalinity ◽  
University Campus ◽  
Chemical Parameters ◽  
Water Color ◽  
Normal Range ◽  
Temperature Conductivity ◽  
Physico Chemical ◽  
Depth Water

Study was conducted to determine the physico-chemical parameters of water of three different lakes in Jahangirnagar University campus from March to November, 2013. The selected parameters were water depth, water temperature, conductivity, transparency, pH, dissolve O2, free CO2, total alkalinity, hardness, sulfate and water color. Water depth fluctuated from 140 cm to 385 cm, temperature ranged from 250C to 310C, conductivities ranged from 627 ?S/cm to 1544 ?S/cm, transparency from 22 cm to 87 cm, considerable variation of water colors were found and pH ranged from 6.4 to 7.5 without having any significant fluctuation. Dissolve oxygen (DO) ranged from 2.7 mg/l to 7.6 mg/l, carbon dioxide level ranged from 16 mg/l to 62 mg/l, total alkalinity and hardness were ranged from 43 mg/l to 92 mg/l and 63 mg/l to 134 mg/l, respectively with slight variations in different lakes in different months. During the study period, all the spots showed minimum fluctuation of physico-chemical parameters from the normal range without having some exceptions.Bangladesh J. Zool. 43(2): 239-250, 2015

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).

Description and comparative study of physico-chemical parameters of the teleost fish skin mucus

Biorheology ◽  
2015 ◽  
Vol 52 (4) ◽  
pp. 247-256 ◽  
Author(s):  
Francisco A. Guardiola ◽  
María Cuartero ◽  
María del Mar Collado-González ◽  
Marta Arizcún ◽  
F. Guillermo Díaz Baños ◽  
...  
Keyword(s):  
Comparative Study ◽  
Teleost Fish ◽  
Fish Skin ◽  
Chemical Parameters ◽  
Skin Mucus ◽  
Physico Chemical
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