scholarly journals Determination of Thermal Pollution Effect on End Part of Stream

The present study was conducted to evaluate the environmental impact of thermal effluent sources on the main water quality parameters at the low flow conditions. The low flow causes the flow velocity to be low which causes accumulation of any pollutant source. The study was performed by creating a 2-d model of the last reach of Rosetta branch at winter closure. Delft 3d software is used to create a hydro-dynamic model to simulate the flow pattern within a 5 km of the branch upstream Edfina regulator. Water quality model is coupled afterwards to simulate the water quality parameters. A base case scenario of the current state at the low flow condition is set up and calibrated. Another scenario is performed after adding a thermal pollutant source. Thermal power plant is used as an application of thermal pollutant source. Cooling water is with drawled from an intake and discharged back to the water source with a relatively higher temperature downstream the intake. A case study of Dairut thermal power plant which is planned to be constructed at this area is used. Hydrographic survey is performed to collect essential hydraulic data for the model. Field measurements are performed to collect water quality along the area. A numerical model was set up and the area was simulated. Results showed accumulation of thermal plume. The higher temperatures lowered the dissolved oxygen in the thermal plume area. On the other hand, BOD and NO3 values increased with different rates. Ammonium was positively affected and was lowered.

2012 ◽  
Vol 166-169 ◽  
pp. 2400-2403
Author(s):  
Guo Liang Bai ◽  
Shuai Niu ◽  
Bao Ping Du

Two different models are set up to analyze how the connection styles influence on the seismic behavior of frame-bent structure. In the earthquake input of both directions, mode superposition response spectrum method is used to calculate the parameters of frame-bent structure such as the story shear, seismic action deformation and so on. Analyzing the difference of the parameters of both models, explaining the reasons and drawing some rules are all done in this essay.


2021 ◽  
pp. 380-390
Author(s):  
Kaushiki Sharma ◽  
Darshan Mishra ◽  
Sohil Sisodiya

The prevailing research focuses on physico-chemical attributes of Chambal river, a perennial and major water source for Kota city (The commercial zone of Rajasthan, is ensconced on the shore of Chambal river) with various socioeconomic fields marked it’s uses in industries, in thermal power station, annual irrigation of 5668.01sq km from Kota barrage, domestic uses, etc. and estimated via geographical information system and inverse distance weighting (IDW) techniques. Hydrological module of Arc-GIS mapping utilized to prepare maps of every single parameter and interpolated through IDW technique. The study was carried out in the Kota city for 4 stations, targeted water samples collected through National water monitoring program (NWMP) and analyzed. The selected water quality parameters are pH, total dissolved solids (TDS), electric conductivity (EC), nitrate content, fluoride (F), BOD, hardness. Seasonal variation in these parameters were observed throughout the monthly study period and parameters like Electric conductivity (EC) and hardness shown fluctuations in concentration during Monsoon period. Overall tested water quality parameters are in permissible limit.


2011 ◽  
Vol 3 (2) ◽  
pp. 284-286
Author(s):  
A. S. Deshpande ◽  
S. B. Zade ◽  
S. R. Sitre

The hazardous effect of water pollution on the histopathology of selected organs of the freshwater fish Labeo rohita was studied with respect to thermal power plant effluent. The purpose of this research paper is to study whether the thermal plume can affect fish assemblages in the waters around the outlet area of the thermal power plant located at Koradi near Nagpur city. Both experimental and control fishes were monitored for a year from March 2010 to Feb. 2011. Histopathology serve as a tool to assess the extent of damage caused to the organism.Gill tissue showed fusion of primary lamellae, congestion of blood vessels and hyperplasia of bronchial plates. The histopathological changes in the gill tissue include epithelial hyperplasia, curling of secondary lamellae and changes in chloride cells. Besides these changes pyknotic nuclei, vacuolization, degradation of epithelial and pillar cells, were noticed, which point out towards deleterious effect of thermal power plant effluent on the freshwater fish L. rohita.


2010 ◽  
Vol 4 (1) ◽  
pp. 127-140
Author(s):  
Adriana Sant'Ana Tenório de Matos ◽  
Jader Lugon Júnior ◽  
José Antônio Maciel Pereira ◽  
Maria Inês Paes Ferreira ◽  
Paulo Rogério Nogueira de Souza ◽  
...  

2018 ◽  
Vol 10 (3) ◽  
pp. 915-924
Author(s):  
Savita Verma ◽  
Anju .

In the present study, both the underground and surface water samples around Guru Nanak Dev Thermal Power Plant Bathinda, Punjab, having total installed capacity of 440MW, were analyzed for the physico-chemical parameters viz. pH, Electrical Conductivity (EC), Total Dissolved Solid (TDS), Total Hardness (TH), Calcium (Ca2+), Magnesium (Mg2+), Total Alkalinity (TA), Carbonate (CO32-), Bicarbonate (HCO3-), Chloride (Cl-), Phosphate (PO43-), Nitrate (NO3-), Fluoride (F-) and heavy metals such as Cadmium (Cd), Copper (Cu), Lead(Pb), Nickel (Ni) and Zinc (Zn). The correlation coefficients (r) among various water quality parameters of studied underground water samples were calculated. The physical and chemical parameters of groundwater are compared with the drinking water quality standards recommended by Bureau of Indian Standards (BIS) (2012) and World Health Organization (WHO) (2017). On the basis of results obtained in the present study, concentration of Chloride (Cl-), Magnesium (Mg2+), Fluoride (F-) and Total  dissolved solids (TDS) observed in ground water of Bathinda varied from 30 to 284 mg/l, 120 to 280 mg/l, 2.66-3.99 mg/l and 620-1439 mg/l, respectively which are exceeding the acceptable limits prescribed by WHO (2017) as well as BIS (2012). Also, the concentration of heavy metals viz. cadmium (0.366 to 0.437 mg/l), and lead (0.193 to 0.353 mg/l) have higher levels than prescribed by WHO and BIS for drinking purpose. Thus, groundwater is not suitable for drinking purposes with prior treatment.


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