|
Evaluation of Operational Parameters involved in Electrolytic Defluoridation Process (IJCSEIERD)
( Neha Mumtaz, Govind Pandey, Pawan Kumar Labhsetwar and Subhash P. Andey,,,,Year : 2012)
|
|
No information is available
|
|
Impact of Sewage Discharges on Coastal Water Quality Mumbai, India: Present and Future Scenarios. (Environmental Monitoring and Assessment)
(Ritesh Vijay, Trupti Mardikar , Rakesh Kumar,Vol. 188,,420,Year : 2016)
|
The simulation study assesses the impact of sewage discharges on the present and predicted water quality of the Mumbai coast using MIKE 21. Water quality parameters in terms of dissolved oxygen (DO), biochemical oxygen demand (BOD) and faecal coliform (FC) are checked against specified standards. The simulation is validated for the present coastal hydrodynamics and observed water quality parameters. The validated model is further used for predicting scenarios in terms of upgradation in a pumping station and improvement in wastewater collection, treatment level and disposal systems. The water quality of the existing coastal environment does not conform to the stipulated standards but improves considerably in the prediction scenarios. However, despite a marked improvement in FC, it is not as per desired standards as no treatment for bacteria removal is considered. The simulation study emphasizes the need for exploring options like the reuse or recycle of treated effluent, as an effort for water conservation.
|
|
Long memory in air pollutant concentrations(Atmospheric Research)
(A.B. Chelani
,171,,1-4,Year : 2015)
|
In the present paper, long-memory in air pollutant concentrations is reviewed and outcome of the past studies is analyzed to provide the possible mechanism behind temporal evolution of air pollutant concentrations. It is observed that almost all the studies show air pollutant concentrations over time possess persistence up to a certain limit. Self-organized criticality of air pollution, multiplicative process of pollutant concentrations, and uniformity in emission sources leading to self-organized criticality are few of the phenomena behind the persistent property of air pollutant concentrations. The self-organized criticality of air pollution is linked to atmosphere's self-cleansing mechanism. This demonstrates that inspite of increasing anthropogenic emissions, self-organized criticality of air pollution is sustained and has low influence of human interventions. In the future, this property may, however, be perturbed due to continuous air pollution emissions, which may influence the accuracy in predictions
|
|
|
Flow Characterization of Water Bodies: a review(International Journal of COmputing and Technology)
(R.V. Moharir, K. Khairnar, W.N. Paunikar,,, p 1-4 ,,Year : 2014)
|
|
No information is available
|
|
|
Air Quality Prediction: Influence of Model Parameters and Sensitivity Analysis(Indian Journal of Environmenal Protection)
( A.L.Aggarwal, S.K.Goyal,Vol. 17(9),, p. 650-655 ,Year : 2016)
|
|
No information is available
|
|
|
Recycling and treatment of herbal pharmaceutical wastewater using Scenedesmus quadricuada, (Current Science)
(,,,,Year : 2015)
|
|
Globally, herbal pharmaceutical industries are among the leading pharmaceutical industries. They generate large volume of wastewater during processing and production, which is highly biodegradable in nature and cannot be discharged into environment as such. Hence efforts are being made to evaluate the toxicity of herbal pharmaceutical effluents using green algae Scenedesmus quadricauda. Physico-chemically treated effluents (PCTEs) as well as biologically treated effluents (BTEs) were observed after the application of S. quadricauda. Also, S. quadricauda showed higher growth rate after the addition of PCTE and BTE. The highest yield of algae was observed in BTE up to 15 days of incubation by synthesis of chlorophyll and cell metabolites, even with 10-100% dilution of effluents. The present study also discusses the evaluation of biotoxicity and recycling on herbal pharmaceutical wastewater along with heavy metal removal.
|
|
|
Modeling of fugitive dust emission and control measures in stone crushing industry(Journal of Environmental Monitoring)
(S. Mohan Raj, S. Jeremiah Chinnadurai and R. Jayabalou, Vol. 115,,p. 98-997 ,Year : 2016)
|
|
No information is available
|
|
Microbial decolorization of reactive black-5 in a two stage anaerobic-aerobic reactor using acclimatized activated textile sludge
(Sagrika Mohanty, Nishant Dafale & Nageshwara Rao
,17,,403-413,Year : 2006)
|
A two-stage anaerobic–aerobic treatment process based on mixed culture of bacteria isolated from textile dye effluent was used to degrade reactive black 5 dye (RB-5). The anaerobic step was studied in more detail by varying the dye concentration from 100 to 3000 mg l)1 . The results showed that major decolorization was achieved during the anaerobic process. The time required for decolorization by >90% increased as the concentration of the dye increased. It was also found that maintaining dissolved oxygen (DO) concentration below 0.5 mg l)1 and addition of a co-substrate viz., glucose, facilitates anaerobic decolorization reaction remarkably. An attempt was made to identify the metabolites formed in anaerobic process by using high performance liquid chromatography (HPLC) and UV–VIS spectrophotometry. A plate assay was performed for the detection of dominant decolorizing bacteria. Only a few bacterial colonies with high clearing zones (decolorization zones) were found. The results showed that under anaerobic condition RB-5 molecules were reduced and aromatic amines were generated. The aromatic amine metabolite was partly removed in subsequent aerobic bio-treatment. It was possible to achieve more than 90% decolorization and approximately 46% reduction in amine metabolite concentration through two-stage anaerobic–aerobic treatment after a reaction period of 2 days.
|
|
|
Ozonation of Reactive Orange 4 dye aqueous solution using mesoporous Cu/SBA-15 catalytic material(Safety Science)
(Ravi K. Sharma, Bhola R. Gurjar, Akshay V. Singhal, Satish R. Wate, Santosh P. Ghuge, Rajat Agrawal,72,,262-273.,Year : 2018)
|
In the recent decades, several fatal accidents have occurred around the world at petroleum storage sites leading to fire, explosion and toxic release scenarios. Such accidents result in huge loss of lives and property, along with widespread environmental damage due to improper coordination and communication in the emergency response. Therefore, emergency response planning is an integral and essential part of the safety and loss prevention strategy and comprises of the actions taken to manage, control and mitigate the immediate effects of an incident. An emergency requires a crystal clear hierarchy of command and organizational-procedural guidelines without any ambiguities. This paper highlights the need, structure and development of an automated networking system, called the electronic-Incident Command System (e-ICS), through case study of the Indian Oil Corporation Limited (IOCL) Jaipur storage terminal accident. Based on the previously proposed Incident Command System, e-ICS further strengthens coordination and communication in emergency responses. The response mechanism, through Confirmation, Command, Tactical and Support Nets for vertical and horizontal flow of commands and information has been described. This paper also discusses the importance of the Emergency Operations Center and Emergency Management Computation System in expediting the information flow. Thus, recommendations for improving coordination in crisis management are proposed.
|
|
|
The use of methanotrophic applications to control of fugitive methane emissions from the biodegradation of organic waste(International Journal of Environmental Technology, and Management)
(Mancebo, U., Hettiaratchi, J. P.A., Kumar, S., &Hurtado, O.,15, ,,524-538,Year : 2017)
|
Large amounts of methane (CH4) escapes to the atmosphere through fugitive emissions arising from anthropogenic sources. This is detrimental because the Global Warming Potential (GWP) of CH4 is 25 times that of carbon dioxide (CO2) on a 100 year time horizon. As a result, there has been increasing interest in developing cost-effective and reliable alternatives for the minimisation of CH4 releases into the atmosphere. The aim of this paper is to discuss the current state of efforts and alternatives with respect to the control of fugitive CH4 emissions generated from the anaerobic biodegradation of organic waste.
|
|
Polymorphisms in DNA repair and multidrug resistance genes among Sindhis of Central India(Environmental Toxicology and Pharmacology)
(Pramanik S, Surendran ST, Arumugam S, Devi S, Krishnamurthi K, Chakrabarti T (Corresponding Author),40(2),,480-485,Year : 2015)
|
Polymorphisms in DNA repair and multidrug resistance genes might contribute to interindividual and interethnic differences in DNA repair capacity and drug disposition respectively. In the present study, we determined the allele and genotype frequencies of four single nucleotide polymorphisms (SNPs) located in the DNA repair genes, XRCC1, XRCC3, XPD, OGG1, namely XRCC1 Arg399Gln, XRCC3 Thr241Met, XPD Lys751Gln, and OGG1 Ser326Cys, respectively and two SNPs located in the multidrug resistance gene, ABCB1, namely ABCB1 C3435T and ABCB1 C1236T, in 33-35 healthy and unrelated Sindhi individuals, residing in the Vidarbha region of Central India and compared them with the Maharashtrian population from the same geographical region and some other HapMap populations from the HapMap database. The study findings reveal that the Indian Sindhis are closely related to the Maharashtrians as well as Utah residents with Northern and Western European ancestry and Gujarati Indians in Houston, Texas in the HapMap database.
|
|
|
UV induced photocatalytic degradation of aqueous acetaminophen: the role of adsorption and reaction kinetics(Environmental Science and Pollution Research)
( David Keane, Kieran Nolan, Michael Oelgemoller, Jenny Lawler, John M. Tobin, Anne Morrissey,22,,2219-2230,Year : 2015)
|
Nanostructured titania supported on activated carbon (AC), termed as integrated photocatalytic adsorbents (IPCAs), were prepared by ultrasonication and investigated for the photocatalytic degradation of acetaminophen (AMP), a common analgesic and antipyretic drug. The IPCAs showed high affinity towards AMP (in dark adsorption studies), with the amount adsorbed proportional to the TiO2 content; the highest adsorption was at 10 wt% TiO2. Equilibrium isotherm studies showed that the adsorption followed the Langmuir model, indicating the dependence of the reaction on an initial adsorption step, with maximum adsorption capacity of 28.4 mg/g for 10 % TiO2 IPCA. The effects of initial pH, catalyst amount and initial AMP concentration on the photocatalytic degradation rates were studied. Generally, the AMP photodegradation activity of the IPCAs was better than that of bare TiO2. Kinetic studies on the photocatalytic degradation of AMP under UV suggest that the degradation followed Langmuir–Hinshelwood (L–H) kinetics, with an adsorption rate constant (K) that was considerably higher than the photocatalytic rate constant (k r), indicating that the photocatalysis of AMP is the rate-determining step during the adsorption/photocatalysis process.
|
|
|
Health Effects and Significance of Arsenic Speciation in Water(International Journal of Environmental Science and Research)
(Rupali Rakhunde, Dipali Jasudkar, Leena Deshpande, H.D. Juneja, Pawankumar Labhasetwar ,volume 1,issue 4,61-65 ,Year : 2012)
|
|
No information is available
|
|
Prediction and Examination of Seasonal Variation of Ozone with Meteorological parameter Through Artificial Neural Network(Urban Climate)
(Navneet Kumar, Anirban Middey and Padma S. Rao,20,,148-167,Year : 2017)
|
The present study focused on seasonal relations and predictions of the ozone (O3) coupled with NO2 and meteorology. Monitoring of ozone concentration throughout year shows an increasing trend during summer and a decreasing trend in the winter season. A comparison between three types of ANN; multilayer perceptron trained (MLP) with back-propagation, radial basis functions (RBF) and generalized regression neural network (GRNN) for short prediction of ozone are conclusively demonstrated. The model results are validated with observations from next monsoon. Based on the model's performance, the MLP back propagation model gives the best correlation between observed and predicted ozone concentrations than other models. Performance assessment parameters considered in the study also indicates that MLP is the best-fit model for prediction of ozone concentration throughout the year
|
|
|
Deciphering unknown proteins in Human Herpes Viruses(CiiT International Journal of Automation and Autonomous System)
(S. G. Sanmukh, W. N. Paunikar,,,,Year : 2012)
|
|
No information is available
|
|
|
Solar assisted alkali pretreatment of garden biomass: Effects on lignocellulose degradation, enzymatic hydrolysis, crystallinity and ultra-structural changes in lignocellulose
(,,,,Year : 2015)
|
A comprehensive study was carried out to assess the effectiveness of solar assisted alkali pretreatment (SAAP) on garden biomass (GB). The pretreatment efficiency was assessed based on lignocellulose degradation, conversion of cellulose into reducing sugars, changes in the ultra-structure and functional groups of lignocellulose and impact on the crystallinity of cellulose, etc. SAAP was found to be efficient for the removal of lignin and hemicellulose that facilitated enzymatic hydrolysis of cellulose. FTIR and XRD studies provided details on the effectiveness of SAAP on lignocellulosic moiety and crystallinity of cellulose. Scanning electron microscopic analysis showed ultra-structural disturbances in the microfibrils of GB as a result of pretreatment. The mass balance closer of 97.87% after pretreatment confirmed the reliability of SAAP pretreatment. Based on the results, it is concluded that SAAP is not only an efficient means of pretreatment but also economical as it involved no energy expenditure for heat generation during pretreatmeny.
|
|
|
Anaerobic pretreatment and increased solid destruction for vegetable solid waste co-digested with cattle slurry( Journal of Environmental Engineering and Science)
(R. Saravanane and R. Sivacoumar, Vol. 511,,p. 67-72,Year : 2016)
|
|
No information is available
|
|
Gut-Bioreactor and Human Health in Future(Indian Journal of Microbiology)
(Purohit, H. J.
,58(1) ,,3-7,Year : 2018)
|
|
No information is available
|
|
|
Individual and Societal Risk Assessment for a Petroleum Oil Storage Terminal(Journal of Hazardous, Toxic and Radioactive Waste)
(Bhola R. Gurjar, Ravi K. Sharma, Santosh P. Ghuge, Satish R. Wate, Rajat Agrawal,19 (4),,1-9.,Year : 2015)
|
This paper presents an assessment of individual and societal risk associated with the effects of explosions and fires in the petroleum oil storage terminal of Indian Oil Corporation Limited (IOCL), Jaipur, India, that occurred on October 29, 2009. Eleven fatalities and a property loss of approximately U.S. $60 million were reported. The maximum risk level at a distance of around 100 m from the release point is 10−4 per year. The next risk level, i.e., 10−5 per year is at a distance of 280 m within the terminal boundary. This paper demonstrates that the individual risk inside the terminal for various categories of personnel is in the range of 10−5 to 10−6 per year. Moreover, F=N curve (where N is the number of fatalities, and F is the frequency of N or more fatalities) indicating societal risk is in the so-called as low as reasonably practicable region. Thus the total risk at the terminal does not lie in the unacceptable region, but in the as low as reasonably practicable region where substantial measures for a risk reduction were needed. The consequences in and around the terminal were high, which might be due to the failure or absence of certain precautionary measures. The paper is useful to assess the fire and explosion risk of a petroleum oil storage terminal to avoid major accidents.
|
|
|
Challenges and opportunities associated with waste management in India(Royal Society Open Science)
(Kumar, S., Smith, S.R., Fowler, G.F., Velis, C., Kumar, S.J., Arya, S., Rena., Kumar, R., &Cheeseman, C.,41,,,60,764,Year : 2017)
|
India faces major environmental challenges associated with waste generation and inadequate waste collection, transport, treatment and disposal. Current systems in India cannot cope with the volumes of waste generated by an increasing urban population, and this impacts on the environment and public health. The challenges and barriers are significant, but so are the opportunities. This paper reports on an international seminar on Sustainable solid waste management for cities: opportunities in South Asian Association for Regional Cooperation (SAARC) countries organized by the Council of Scientific and Industrial Research-National Environmental Engineering Research Institute and the Royal Society. A priority is to move from reliance on waste dumps that offer no environmental protection, to waste management systems that retain useful resources within the economy. Waste segregation at source and use of specialized waste processing facilities to separate recyclable materials has a key role. Disposal of residual waste after extraction of material resources needs engineered landfill sites and/or investment in waste-to-energy facilities. The potential for energy generation from landfill via methane extraction or thermal treatment is a major opportunity, but a key barrier is the shortage of qualified engineers and environmental professionals with the experience to deliver improved waste management systems in India.
|
