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Assessment of the mechanical stability and chemical leachability of immobilized electroplating waste(Chemosphere)
(K. Swaminathan,581,,75-82,Year : 2016)
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No information is available
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Assessment of heterogeneous road traffic noise in Nagpur(Journal of Archives of Acoustics )
(Samir S pathak, Piyush K Kokate,,,,Year : 2017)
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"he objective of the study is to assess the noise scenario and evaluate prediction model for heterogeneous traffic conditions. In the past few years, road traffic of Nagpur has increased significantly due to the rapid increase in the number of vehicles. Noise levels are monitored at six different squares, characterized as interrupted traffic flow due to traffic signals, high population density and heavy traffic where the major sources of noise are engines, exhausts, tires interacting with the road, horns, sound of gear boxes, breaks, etc. The A-weighted time-average sound levels (LAeq;T) are measured at the different time of day during peak and off-peak traffic hours. To assess the traffic noise more precisely, the noise descriptors such as L10, L50, L90, LAeq;T, TNI (Traffic Noise Index), NPL (Noise Pollution Level) and NC (Noise Climate) are used. In the present study, the Federal Highway Administration (FHWA) noise prediction model is used for prediction of noise levels and it is observed that one-hour duration measured LAeq;T ranged from 71 to 76 dB(A) and 71.6 to 76.3 dB(A) during peak and off peak hours respectively. Due to the heavy traffic the peak hour Sound Exposure Levels (LAE) at all locations are exceeding permissible limit of 70 dB(A) prescribed by the World Health Organization (W.H.O). Off-peak traffic hour noise levels are within permissible limit except at two locations, Jagnade and HB town square. Significant correlation was obtained when best fit lines generated between measured and predicted values gives R2 of 0.455 for all time intervals. Chi-Square test (?2) was also computed to investigate the noise levels at different squares. The results show that the inhabitants of Nagpur city are exposed to high transportation noise
during daytime."
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Assessment of Environmental Water Demands (EWD) of Forests for Two Distinct Indian Ecosystems(Environmental Management)
(,,,37,Year : 2006)
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Sustainable use of water and land resources requires that these scarce resources be appropriately allocated among various competing human activities. Worldwide, there is a realization now that sustainable river basin management should be accorded the highest priority, because it deals not only with technical, but also with ecological and socioeconomic aspects, and thus calls for a multidisciplinary and integrated approach. However, most of the policy and planning documents have either remained silent, or have made only implicit reference to the importance of environmental water demand (EWD) and its quantification. Therefore, in the light of its importance, a methodology has been evolved in this article for quantifying EWD for various forested areas in two distinctly different Indian river basins: Brahmani (humid zone) and Sabarmati (dry zone). The article analyzes and discusses EWD estimates at three different spatial levels: river basins, states, and districts within them, and finally presents a comparative analysis of all these results. Findings of the present study will be immensely useful in understanding various ecological issues connected with water resource projects and proposals in these river basins.
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Sulfur Dioxide-tolerant Strontium Chromate for the Catalytic Oxidation of Diesel Particulate Matter.(Catalysis Science and Technology)
(Rohini Khobragade, Hisahiro Einaga, Suman Jain, Govindachetty Saravanan, Nitin Labhsetwar,8,2018,,1712-1721,Year : 2018)
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No information is available
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Paenibacillus polymyxa ND25: candidate genome for lignocellulosicbiomass utilization(Archives of microbiology)
(Varsha Bohra
Nishant A. Dafale
Hemant J. Purohit
, 85,,,248,Year : 2018)
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Genome sequence of Paenibacillus polymyxa ND25 isolated from cow rumen is reported for being a potential candidate in hydrolysis of lignocellulosic plant biomass. Draft genome sequence generated 5.73 Mb data containing 4922 putative protein coding genes, of which 140 are annotated for glycoside hydrolases. P. polymyxa ND25 strain comprises diverse lignocellulolytic components, especially 12 cellulase along with 23 hemicellulases and 11 esterases, signifying its potential for lignocellulose hydrolysis. Subsequent enzyme assay exhibited the potential of strain to produce 0.49, 0.24 and 0.44 U/ml U/ml of endoglucanase, exoglucanase and β-glucosidase, respectively, utilizing sugarcane bagasse as the sole carbon source. This study signifies the efficient application of P. polymyxa ND25 for facilitating plant-biomass utilization.
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Enhanced biological activity and biosorption performance of trimethyl chitosan-loaded cerium oxide particles(Journal of Industrial and Engineering Chemistry)
(Faruq Mohamamd, Tanvir Arfin, Hamad A.A Al-Lohedan
,45, ,,33-45,Year : 2018)
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No information is available
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Solubilization and elimination of coliforms from sewage sludge by sonication(Journal of Environmental Science and Engineering (JESE))
(Snehal Pathki, M. Suresh Kumar and A.N. Vaidya.
,561: ,,89-92.,Year : 2014)
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Disposal of sewage secondary excess sludge is a great problem globally, and stabilization of this excess sludge by anaerobic digestion is hampered due to its constituents resistant to biodegradation. Sludge pre-treatment enhances the performance of anaerobic digestion. In this study, sewage sludge was collected from a full-scale sewage treatment plant and characterized. Ultrasonic method was used for the excess sludge disintegration of microbial flocks and cells, so as to breakdown the intracellular or extracellular polymeric materials to enhance the anaerobic digestion. The studies related to the effect of sonication on release of nutrients, increase in soluble COD and reduction in pathogenic coliforms as well as heterotrophic microorganisms and the optimization of sonication time were carried out. The results showed that the twenty minutes sonication (25 kHz) increased the soluble COD content, nutrient release and complete disappearance of fecal as well as total coliforms in the treated sludge. The results are presented and discussed in this paper.
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Physico-chemical characteristics of soil in Shahdol District of Vindhya Platue(Journal of Applicable Chemistry)
(Tripathi, I.P., Arving P. D and M. Suresh Kumar,Vol: 3(3),, 1155-1164,Year : 2014)
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The bicarbonate ions present in the textile dye industry effluent were found to act as radical scavengers, thereby, lowering the COD removal efficiency significantly. The removal of bicarbonate ions from the effluent prior to its ozonation enhanced the COD removal efficiency from 30.2% to 90% after 4 h of catalytic ozonation.
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Free iron status & insulin resistance in type 2 diabetes mellitus: Analyzing the probable role of a peanut protein(Indian J Med Res)
(Souvik Sen, Sumanta Kumar Ghatak,Kamalika Sen. , Dipanjali Majumdar,142,,606-609,Year : 2015)
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Iron overload in blood serum has been related with early onset of type 2 diabetes mellitus. A comparative study was made between free iron and insulin resistance in type 2 diabetic population of South Kolkata, India. Free iron is measured in serum using post colum derivatisation method with coupled with HPLC technique. It was found that an index obtained from (BMI×Fe3+/Fe2+) directly varies with insulin resistance in female subjects. Over the counter use of iron medications may be seriously questioned as free iron was found to be significantly increased in diabetic population. Peanut protein, conarachin I was found to have high iron binding efficiency and was studied for its chelation effect for free iron in the blood serum in vitro for formulating probable remediation.
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Waste degradation and gas production with enzymatic enhancement in anaerobic and aerobic landfill bioreactors(Bioresource Technology)
(Hettiaratchi, J.P.A.,Jayasinghe,P.A., Bartholomeuz, E.M., &Kumar, S,159, 433-436.,,,Year : 2014)
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The presence of lignin is the limiting factor at later stages of biodegradation of municipal solid waste under aerobic or anaerobic conditions. Supplying enzymes into the system could facilitate lignin degradation, thereby aiding anaerobic and aerobic waste degradation processes. A comprehensive set of laboratory experiments were conducted under both anaerobic and aerobic conditions to evaluate the feasibility of using enzymes in accelerating lignin-rich waste degradation. After 30 days of anaerobic operation, MnP and LiP enzyme treated reactors produced 36 and 23 times higher cumulative methane (CH4), respectively, compared to that of the control reactor devoid of enzyme treatments. The carbon dioxide (CO2) yield of MnP enhanced aerobic reactor showed more than two-fold increase.
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Emission estimation of aromatic and halogenated VOCs from household solid fuel burning practices(International Journal of Environmental Science and Technology)
(Verma M. , Pervez S. , Majumdar D. , Chakrabarty R. & Pervez Y. F. ,,,,Year : 2018)
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This study describes the emission factors (EFs) of 16 volatile organic compounds (VOCs) for the combustion of commonly used household solid fuels including coal balls (CB), fuelwood (FW), dung cakes (DC), crop residues (CR), and mixed fuels (MF: DC + FW), collected from ten states of India. Sum of 16 VOCs EF (g kg-1) have shown highest level (50.0 ± 22.7 g kg-1) for CB, followed by CR (23.71 ± 10.64 g kg-1), DC (19.08 ± 3.29 g kg-1), MF (15.77 ± 9.49 g kg-1), and FW (12.79 ± 5.69 g kg-1). These findings are multifold higher than those reported for biomass burning in test chamber studies. Benzene and dichloromethane EFs were found to be dominating among the aromatic and halogenated VOCs, respectively. Annual TVOCs emission estimates were evaluated to be 12.58 ± 5.92 Gg year-1 from household solid fuel burning practices. It was the 1/6th of TVOCs emission estimates (73 Gg year-1) from biomass burning in India during 2009.
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Traffic noise prediction model of an Indian Road: An increased scenario of vehicles and honking(Environmental Science and Pollution Research)
(Chaitanya Thakre, Vijaya Laxmi, Ritesh Vijay, D. J. Killedar, Rakesh Kumar,,,,Year : 2020)
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Noise is considered as an underrated and underemphasized pollutant in contrast to other pollutants of the environment. Due to the non-acute response of health effects, people are not vigilant towards consequences regarding noise pollution. The expansion of the transportation industry is contributing towards the increment in the public and private vehicular volume which causes an increment in noise pollution. For evaluation of respective scenario, the research study has been conducted on one of the minor roads of Nagpur, India; for 2 years, viz., 2012 and 2019. The study concludes an increment of 5–6 dB(A) in noise level, 4–6 times in honking, and 1.7 times in traffic volume. The study confirms increment in sound pressure by 65.9% and 81.9% for the year 2012 and 2019 during morning and evening sessions, respectively. Noise prediction model has also been developed for the abovementioned years, using multiple regression analysis, considering traffic volume, honking, and speed against noise equivalent level. Honking has been further characterized into honk by light and medium category vehicles as acoustical properties of horns vary with respect to category of vehicle and introduced into the noise prediction model. Noise prediction model for 2019 has predicted the noise level in a range of ? 1.7 to + 1.4 dB (Leq) with 84% of observations in the range of ? 1 to + 1 dB (Leq), when compared with observed Leq on the field. For proper management of noise pollution, a noise prediction model is essentially needed so that the noise level can be anticipated, and accordingly, measures can be outlined and executed. This increased noise level has serious impacts on human hearing capacity and overall health. Accordingly, noise mitigation preventive measures are recommended to control traffic noise in the urban environment.
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Environmental Science and Remote Sensing Applications in Hydrological Studies
(Rakesh Kumar, P. R. Pujari, P Chauhan, S. P. Agarwal, S. K. Jain, S. Jain, L Elango, P R. Muduli, C Padmakar, L Deshpande, A Kapley, Ritesh ,86,1,495-501,Year : 2020)
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No information is available
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Physico-chemical analysis and isolation of microbes from ground water nearby landfill site: a case study(Indian Journal of Experiment Biology)
(Khapre, A., Lakshmikanthan, C., & Kumar, S.
,56, ,,526-530,Year : 2017)
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No information is available
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Enhancement of indigo dye yield using fungal elicitors during fermentation of Indigofera plant biomass(Indian Journal of Experiment Biology)
(Saikat Dutta, El Mutaz Nassir Farag, Bijaya Ketan Sarangi
,,,,Year : 2018)
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Natural indigo dye from biogenic materials is an alternative to synthetic indigo to alleviate the pollution scenario. Indigo production from the Indigofera tinctoria plant has been developed from ancient time begins through biomass fermentation in water. Maximum indigo yield depends on complete release of indigo precursor indican from plant biomass through fermentation. This study was carried out to assess the role of fungal elicitors on indigo dye yield during biomass fermentation using three strains namely; Aspergillus niger, Trichoderma reesei and Sclerotium rolfsii. Fungal extracts were prepared from mycelia raised separately on Potato Dextrose agar medium and extracted in a buffer solution containing 1N HNO3 and 1N NaOH. The extracts were added to fermentation water in 1%, 5% and 10% doses (v/v) separately during biomass fermentation keeping other parameters for fermentation and further processing for dye production fixed. Indigo yield with 10% A. niger extract was 1.56 % (w/w), which was higher in comparison to control 0.45% (w/w). A. niger extract at 10% enhanced indigo yield up to 3.5 times in comparison to other two cultures used at same concentration.
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Ambient Air Non-Methane Volatile Organic Compound (NMVOC) Study Initiatives in India ? A Review
(Amrita Talapatra, Anjali Srivastava,Vol.:2(1),,p.21-36,Year : 2011)
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No information is available
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A system based approach to develop hybrid model predicting extreme urban NO2 and PM2.5 concentrations(Transportation Reaearch Part D: Transport and Environment)
(Sunil Gulia, Shiva Nagendra, Mukesh Khare,,,,Year : 2018)
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No information is available
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On H2 supply through liquid organichydrides e Effect of functional groups(International journal of hydrogen energy)
(Shubhangi P. Patil, Ankush B. Bindwal, Yogesh B. Pakade,,42:,,16214-16224,Year : 2017)
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Liquid organic hydride (LOH) based H2 supply systems possess an excellent potential to overcome the obstacles of upcoming ?hydrogen economy?. However, their efficiency mainly relies on the choice of organic hydride and the dehydrogenation catalyst. In the present study, we focused on the former to strengthen the understanding of H2 supply through LOH dehydrogenation. We investigated the role of various functionalities viz., methyl group, N heteroatom, cyclic ring and their combinations in LOH dehydrogenation. Several simple representative LOH's such as methylcyclohexane, piperidine, 4-methylpiperidine and decalin were considered and their dehydrogenation was studied over a 5 wt% Pt/ ACC catalyst in a spray pulse reactor at 350 C. The H2 evolution rates were found to follow the trend: cyclohexane < methylcyclohexane < piperidine < 4-methylpiperidine < decalin. The inductive effects caused by these functional groups and their impact on H2 evolution were comprehensively described. Finally, the results were compared with the benchmark reaction, cyclohexane dehydrogenation to benzene.
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Use of Electrolytic Process in Water and Wastewater Treatment(Journal of Indian Water Works Association)
( Mr. Subhash Andey, Prof. Vasant Mhaisalkar and Mr. Prakash Kelkar,,,,Year : 2012)
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No information is available
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Impact of the disposal and re-use of fly ash on water quality: the case of the Koradi and Khaperkheda thermal power plants(Science of the Total Environment)
(Spadoni, M., Voltaggio, M., Sacchi, E., Sanam, R., Pujari, P.R., Padmakar, C., Labhasetwar, P.K., Wate, S.R,,,,Year : 2014)
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No information is available
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