scholarly journals Heavy Metals Accumulation and Physiological Changes in the Lichens Growing in the Vicinity of Coal-Based Thermal Power of Kanti (Muzaffarpur), Bihar, India

2019 ◽  
Vol 5 (03) ◽  
pp. 165-169
Author(s):  
Alka Kumari
Keyword(s):  
Heavy Metals ◽  
Protein Content ◽  
Power Plants ◽  
Metal Accumulation ◽  
Thermal Power ◽  
Pollution Level ◽  
Physiological Changes ◽  
Total Chlorophyll ◽  
Test Species ◽  
Polluted Sites

The present study was designed with an aim to observe the effect of increasing pollution level on native lichen diversity, metal accumulation and physiological changes around a coal-based thermal power plant of Kanti, Muzaffarpur districts of Bihar, India. Three lichen species namely Phaeophyscia hispidula (Ach.) Essl, Physcia dilatata Nyl., and Pyxine cocoes (Sw.) Nyl., were found growing in their natural habitat in vicinity of fly ash. Among these, Physcia dilatata Nyl., a common foliose lichen, was growing as a most dominant species at highly polluted sites. During present study the species was analyzed for six heavy metals (Fe, Pb, Cr, Zn, Ni and Cu) and further physiological changes at five different sampling sites. The test species accumulated maximum levels of Fe (10,923), Pb (389), Cr (151), Zn (142), Ni (73.5), and Cu (39.5) at highly polluted dumping sites. However, there was high spatial variability in total metal accumulation in different species indicated by coefficient of variation (CV %) and showed higher values for Fe, Pb and Cr but lower for Cu and Ni. The concentration of most of the metals at different sites was statistically significant as compared to control site. Further six physiological parameters i.e., Chl a, Chl b, total pigment, chlorophyll degradation, carotenoid and total protein content were also measured and found maximum at least polluted control sites (residential sites). Total chlorophyll and protein content are most useful and efficient parameter to assess air pollution level of a region. Total chlorophyll was significantly higher at control sites (0.62) as compared to highly polluted dumping site (0.22) and similarly protein content was also higher at control sites (42.53) as compared to polluted sites (12.87). The results of the present study indicated that P. diltata is pollution tolerant (adaptation) and able to withstand local emissions from thermal power plants.

scholarly journals Microbial Observation in Bioaccumulation of Heavy Metals from the Ash Dyke of Thermal Power Plants of Chhattisgarh, India

2015 ◽  
Vol 06 (02) ◽  
pp. 131-138 ◽  
Author(s):  
Sonali Banerjee ◽  
Ragini Gothalwal ◽  
Pankaj K. Sahu ◽  
Shweta Sao
Keyword(s):  
Heavy Metals ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants

scholarly journals Assessment of Heavy Metal Pollution of the Snow Cover of the Severodvinsk Industrial District (Russia, the Arkhangelsk Region).

2021 ◽  
Author(s):  
E. Yu. Yakovlev ◽  
A.S. Druzhinina ◽  
E.N. Zykova ◽  
S.B. Zykov ◽  
N.L. Ivanchenko
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Snow Cover ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Power Plants ◽  
Solid Phase ◽  
Thermal Power ◽  
Industrial District ◽  
Arkhangelsk Region

Abstract In the present work, the content of heavy metals in soluble and insoluble forms of snow was investigated, as well as in waters from wells near the Severodvinsk industrial centre (Russia, the Arkhangelsk region). The content of heavy metals (Al, Fe, Ti, Mn, Zn, Cr, Cu, Ni, Pb, Co, V, As, and Cd) in the melt snow filtrate and solid residue was measured using the ICP-MS method. On the territory of the city, there are high concentrations of metals, high values ​​of electrical conductivity and low pH values ​​in objects most susceptible to anthropogenic pollution. It was determined that in urban conditions the share of the solid-phase component increases, which indicates an increase in dust fallout. Statistical analysis showed that most of the metals in the snow cover are linked with each other by a strong correlation (r> 0.9), and also made it possible to identify sources of pollution, namely thermal power plants and shipbuilding enterprises. The calculation of various indices for assessing the snow quality and natural waters determined the level of heavy metal pollution in the Severodvinsk industrial district as extremely high and dangerous for public health. The radiation parameters of water from wells were studied and a satisfactory radioecological characterisation of the research area was established.

Assessment of Contamination of Soil due to Heavy Metals around Coal Fired Thermal Power Plants at Singrauli Region of India

2010 ◽  
Vol 85 (2) ◽  
pp. 219-223 ◽  
Author(s):  
Prashant Agrawal ◽  
Anugya Mittal ◽  
Rajiv Prakash ◽  
Manoj Kumar ◽  
T. B. Singh ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants

scholarly journals Composition of the magnetic phase of soils on the territory of the protected area “Chernyaevsky Forest“ (Perm)

2021 ◽  
Author(s):  
Anastasia Alexandrovna Azina ◽  
◽  
Andrey Alekseevich Vasiliev ◽  
Keyword(s):  
Heavy Metals ◽  
Forest Soils ◽  
Power Plants ◽  
Magnetic Particles ◽  
Magnetic Phase ◽  
Thermal Power ◽  
Environmental Pollutants ◽  
Industrial Enterprises ◽  
Sources Of Pollution ◽  
Common Group

The territories of industrial cities are objects of active human influence on various natural processes. One of the most acute problems of the present time is the contamination of soils with heavy metals (HM). The main carrier phase of TM in urban soils is technogenic magnetic particles. A common group of particles of technogenic origin are magnetic spherules. The origin of magnetic spherules is associated with the work of industrial enterprises of metallurgical profile, thermal power plants and motor transport. The study of the morphology and composition of the magnetic phase of the soil allows us to identify the sources of pollution. According to the results of magnetic susceptibility, the content of heavy metals and magnetic particles in soils, the level of contamination and their ability to resist it are evaluated. Forest soils are the most sensitive to pollution. Therefore, the study of the composition and properties of magnetic spherules as potential environmental pollutants in Perm is relevant. The composition and properties of magnetic spherules of forest soils in Perm remain poorly understood.

scholarly journals Adsorption treatment of sewage sludge from heavy metals

2020 ◽  
Vol 12 (5) ◽  
pp. 285-291
Author(s):  
A.M. Nazarov ◽  
I.O. Tuktarova ◽  
A.A. Kulagin ◽  
L.Kh. Araslanova ◽  
V.A. Archipenko
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Power Plants ◽  
Thermal Power ◽  
Field Tests ◽  
Thermal Methods ◽  
Sodium Humate ◽  
Humic Compounds ◽  
Processing Plants ◽  
Adsorption Treatment

Introduction. Because of urban development the volume of municipal and industrial wastewater are growing. Along with them the amount of sewage sludge (SS) also increases. Millions of tons of SS are currently accumulated on the territory of the Russian Federation and contain various pollutants, including heavy metals (HM). In this regard, the search for effective methods of SS treatment from HM is an urgent problem. The main methods of SS treatment are drying, dehydration, thermal methods, UV and microwave wave treatment. These kinds of disinfection eliminates many pathogenic microorganisms, but they are quite expensive and not effective against HM. Reagent methods include SS disinfection with quicklime (CaO). However, decontamination requires large doses (up to 30%) and it is also ineffective against HM. Humic-mineral reagent are more effective, they are based on crushed caustobiolites, their cleaning capacity from HM is 19–87%. Methods and materials. The authors have previously shown the effectiveness of wastewater treatment from HM using sorbents based on dolomite, quartzite, and waste from mining and processing plants. Therefore, a method for SS treatment from HM using sorbents based on dolomite, humates, and CS containing CaCO3 and humic compounds was proposed. In this regard, a method was proposed for SS treatment from HM using three types of sorbents based on: 1) waste of thermal power plants (TPP) – conditioned sludge (CS) containing CaCO3 up to 68% and humic compounds up to 12% – sorbent 1 (S1); 2) dolomite – Mg and Ca carbonate in a composition with sodium humate (25%)– sorbent 2 (S2); 3) modified dolomite with sodium humate (1%) – sorbent 3 (S3). Results and discussion. In laboratory experiments, the cleaning capacity of SS was studied using a dolomite-based sorbent modified with humate (1%). In field tests, a decrease in the concentration of HM in SS was studied with the use of sorbents based on CS and the complex sorbent dolomite-humate (75:25). The cleaning capacity of SS from HM increases in the series: sorbents based on waste from TPP – CS containing CaCO3 and humates (cleaning capacity E = 4.8–48.6% for dried SS and 29.3–53.3% for dehydrated SS) < sorbent based on a composition of dolomite with humate (E = 65.1–92.1% for dried and 56.6–89.4% for dehydrated SS) < a dolomite-based sorbent modified with humate (E = 90.8–99.9%). Conclusions. The maximum cleaning capacity is shown by a dolomite-based sorbent coated with a nano- and micro- sized layer of sodium humate.

scholarly journals DETERMINATION OF DIVERSE ENVIRONMENTAL POLLUTION LEVEL FROM SELECTED AREAS OF RAWALPINDI, PAKISTAN

2017 ◽  
Vol 2 ◽  
pp. 16
Author(s):  
S. Pervez ◽  
M. S. Siddique ◽  
H. Y. Abdullah ◽  
A. Zahra ◽  
N. K. Khanzada ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Noise Level ◽  
Urban Areas ◽  
Power Plants ◽  
Road Traffic ◽  
Winter Season ◽  
Ambient Air ◽  
Sound Level ◽  
Pollution Level ◽  
Coal Consumption

Anthropogenic contaminants arising from both stationary (power plants, industries and residential heating) and mobile sources (road traffic) can harm ambient air quality in urban areas. Depending upon their physical state, these pollutants are classified as liquid and vapor phases and are subsequently transported to the Earth’s surface through dry and wet deposition. After the deposition of these pollutants onto the surface of earth various health effects caused by these pollutants occurred like cardiovascular diseases and hypertension. In this study four different locations/sites were selected from the Rawalpindi city depending upon the population, traffic rush and industries to examine the noise level, concentration of carbon dioxide and heavy metals. Air sampler was used for the collection of air sample to analyze the heavy metal concentration, Quest electronic sound meter for measuring sound level and SIBATA for CO2 measurement. The study findings revealed that noise level was higher at all selected locations as described by WHO limit (70 dB) being highest at Industrial area due to heavy machinery and lowest at green area. Concentration of all four heavy metals were high as compared with the prescribed limits. CO2 level reaches up to 300 ppm because of coal consumption during the winter season. The threshold values of all these selected parameters well above the prescribed limits defined by the authorities so to combat with this situation we should move towards more energy efficient fuels, proper maintenance of vehicles and machineries, traffic management and installation of noise barriers in industries as well as installation of catalytic convertors in vehicles to stop further air pollution.

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