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61.
Kumar Gaurav Richa Srivastava Jai Gopal Sharma Ram Singh Vishrut Singh 《International Journal of Green Energy》2016,13(3):320-327
Biodiesel provides a feasible solution to the twin crisis of energy security and environmental concerns prevalent today, and it can be extracted from conventional oil crops as well as microalgae. However, lipid productivity in case of microalgae is much higher and has several advantages as compared with crop plants, so it is a better feedstock for biodiesel. In case of Chlorella pyrenoidosa, the heterotrophic cultured cells were found to be better in terms of lipid production, and ultimately biodiesel production, but the bottleneck is that in this mode glucose is used to feed the cells, which amounts to almost 80% of the total cost of biodiesel production. The purpose of this study is to evaluate and highlight the feasibility of using the industrially cheap cane molasses as a carbon source in place of glucose for a large-scale, low-cost lipid production of Chlorella pyrenoidosa. When treated molasses was used as a carbon source instead of glucose, the biomass sharply increases from 0.89 to 1.22 g L–1. On the other hand, the total lipid content increases from 0.27 to 0.66 g g–1. The specific growth rate and yield was higher in treated molasses as compared with that in glucose-supplemented. A mathematical model was also developed based on logistic, Luedeking–Piret, and Luedeking-Piret-like equations. Model predictions were in satisfactory agreement with the measured data, and the mode of lipid production was growth-associated. 相似文献
62.
Sukhendu Kumar Pramanik Soumen Joarder Saktipada Das Sankhajit Roy 《Journal of environmental science and health. Part. B》2016,51(5):287-297
The phototransformation of Oryzalin was studied under UV light (λmax ≥ 290 nm) and sunlight (λmax ≥ 250 nm) in aqueous isopropanol and acetonitrile solution in absence and presence of TiO2 as sensitizer. The rate of photodegradation of Oryzalin in different solvent system followed first-order kinetics, and calculated half-lives were found to be in the range of 23.52-53.75 h for UV light and 41.23-61.43 h for sunlight. From this study, total 12 photoproducts were identified and characterized on the basis of column chromatography and Q-Tof micromass spectral data. The plausible mechanism of phototransformation involved was hydrolysis, breaking of sulfonic bond, and loss of amino and sulfonic acid group. 相似文献
63.
64.
Sachinandan Dutta Himanish Prasad Jana Subhajit Saha Subhra Kumar Mukhopadhyay 《Russian Journal of Ecology》2016,47(1):88-95
The mortality rate of herpetofauna due to road accidents in one of the busiest tarmacked metalled roads of Durgapur, an industrial town of West Bengal, India was studied. Road survey for 27 days covering a total distance of 94.5 km was conducted. Within this span of time and the total stretch of road, 354 amphibians belonging to 6 species and 133 reptiles belonging to 11 species were observed to be killed in road-accidents. Among amphibians, Duttaphrynus melanostictus and amongst the reptiles Hemidactylus spp. were killed in highest numbers. The stretch of road under survey passed through different habitat patches like’s agricultural land, human habitation, dumping area, fragmented forest and wetland. On an average, 18 herpetofauna was noted to be killed daily. It was difficult to identify the species as the key characters were missing in the remains in a few cases of road casualties. High road mortality of herpetofauna would surely affect the balance of adjoining ecosystems as well as may be crucial for the local herpetofaunal population attributes. 相似文献
65.
66.
Agrawal Yash Gupta Trilok Siddique Salman Sharma Ravi Kumar 《Journal of Material Cycles and Waste Management》2023,25(1):518-534
Journal of Material Cycles and Waste Management - Dolomite production waste is a by-product generated by dolomite mining, causing environmental pollution and other associated issues worldwide. In... 相似文献
67.
Sarkar Sayantan Datta Deepshikha Deepak K. S. Mondal Bikash Kumar Das Bimal 《Journal of Material Cycles and Waste Management》2023,25(4):1935-1965
Journal of Material Cycles and Waste Management - Waste lubricating oil is considered to be a hazardous waste and has tremendous impact on human health and environment. The present review... 相似文献
68.
Kumar Sumodh Ramesh M. R. Doddamani Mrityunjay 《Journal of Material Cycles and Waste Management》2023,25(2):1168-1178
Journal of Material Cycles and Waste Management - Fused filament fabrication (FFF) based additive manufacturing (AM) process is a widely used and emerging manufacturing process for... 相似文献
69.
Catchment-Wide Wetland Assessment and Prioritization Using the Multi-Criteria Decision-Making Method TOPSIS 总被引:1,自引:0,他引:1
It is widely accepted that wetland ecosystems are under threat worldwide. Many communities are now trying to establish wetland
rehabilitation programs, but are confounded by a lack of objective information on wetland condition or significance. In this
study, a multi-criteria decision-making method, TOPSIS (the Technique for Order Preference by Similarity to Ideal Solution),
was adapted to assist in the role of assessing wetland condition and rehabilitation priority in the Clarence River Catchment
(New South Wales, Australia). Using 13 GIS data layers that described wetland character, wetland protection, and wetland threats,
the wetlands were ranked in terms of condition. Through manipulation of the original model, the wetlands were prioritized
for rehabilitation. The method offered a screening tool for the managers in choosing potential candidate wetlands for rehabilitation
in a region. 相似文献
70.
Islam S. M. Didar-Ul Mondal Prantor Kumar Ojong Nathanael Bodrud-Doza Md. Siddique Md. Abu Bakar Hossain Moazzem Mamun Mohammed A. 《Environment, Development and Sustainability》2021,23(8):11953-11974
Environment, Development and Sustainability - The COVID-19 pandemic has caused a global emergence, and the absence of a proven vaccine or medicine has led to the implementation of measures to... 相似文献