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Characterization of Rice Husk Ash and its efficacy towards metal ion adsorption in a decentralized household drinking water treatment system(Bio-Resource Technology)
(Dutta, D. Nagarnaik, P. M., Labhasetwar, P,,,,Year : 2012)
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No information is available
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Disposition of Lightning Activity Due to Pollution Load during Dissimilar Seasons as observed from Satellite and Ground-Based Data(Climate)
(Anirban Middey and Pankaj B. Kaware
,4,,28,Year : 2016)
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The precise role of air pollution on the climate and local weather has been an issue for quite a long time. Among the diverse issues, the effects of air pollution on lightning are of recent interest. Exploration over several years (2004 to 2011) has been made over Gangetic West Bengal of India using lightning flash data from TRMM-LIS (Tropical Rainfall Measuring Mission-Lightning Imaging Sensor), atmospheric pollutants, and rainfall data during pre-monsoon (April and May) and monsoon (June, July, August and September) seasons. Near-surface pollutants such as PM10 and SO2 have a good positive association with aerosol optical depth (AOD) for both the pre-monsoon and monsoon months. High atmospheric aerosol loading correlates well with pre-monsoon and monsoon lightning flashes. However, rainfall has a dissimilar effect on lightning flashes. Flash count is positively associated with pre-monsoon rainfall (r = 0.64), but the reverse relation (r = −0.4) is observed for monsoon rainfall. Apart from meteorological factors, wet deposition of atmospheric pollutant may be considered a crucial factor for decreased lightning flash count in monsoon. The variation in the monthly average tropospheric column amount of NO2, from the Tropospheric Emission Monitoring Internet Service (TEMIS), is synchronic with average lightning flash rate. It has a good linear association with flash count for both pre-monsoon and monsoon seasons. The effect of lightning on tropospheric NO2 production is evident from the monthly average variation in NO2 on lightning and non-lightning days
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Water pollution of Sabarmati River- A Harbinger to Potential Disaster( Environment Monitoring and Assessment)
(Soumya Haldar, Subir Kumar Mandal, R. B. Thorat, Krushnakant Baxi, Navalsang Parmer, Vipul Patel, K.H. Mod
,,,2231-2242,Year : 2014)
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River Sabarmati is one of the biggest and major river of Gujarat that runs through two major cities of Gujarat, Gandhinagar and Ahmedabad and finally meets the Gulf of Khambhat (GoK) in the Arabian Sea. A study was conducted to evaluate the water quality of this river, as it could possibly be one of the major sources for filling up Kalpasar, the proposed man-made freshwater reservoir supposed to be the biggest one in the world. A total of nine sampling stations were established covering 163 km stretch of the river from upstream of Gandhinagar city to Vataman near Sabarmati estuary. Physicochemical (temprature, pH, salinity, chloride, total dissolved solids, turbidity, dissolved oxygen, biochemical oxygen demand, phenol, and petroleum hydrocarbons), biological (phytoplankton), and microbiological (total and selective bacterial count) analyses indicated that the river stretch from Ahmedabad-Vasana barriage to Vataman was highly polluted due to perennial waste discharges mainly from municipal drainage and industries. An implementation of sustainable management plan with proper treatment of both municipal and industrial effluents is essential to prevent further deterioration of the water quality of this river.
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Statistical Method and Computer Programme for Evaluation of Model Performance(Indian Journal of Environmental Protection)
(K.Thanasekaran,Vol. 18(11),, p. 841-849 ,Year : 2016)
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No information is available
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Assessment of contribution of SO2 and NO2 from different sources in Jamshedpur regions(Journal of Atmospheric Environment)
(S.K. Goyal, R. Sivacoumar and C.V.C Rao,Vol.39 40,, p. 7745-7760,Year : 2016)
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No information is available
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Decolorization of azo dyes and simulated dye bath wastewater using acclimatized microbial consortium?biostimulation and halotolerance(Bioresource Technology)
(Nishant Dafale, Nageshwara Rao, Sudhir Meshram & Satish Wate
,99,,2552-2558,Year : 2008)
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Anaerobic acclimatization of activated sludge from a textile effluent treatment plant to high concentration of RB5 could effectively decolorize RB5 dye solution. The strains viz. Pseudomonas aeruginosa and Bacillus circulans and other unidentified laboratory isolates (NAD1 and NAD6) were predominantly present in the microbial consortium. The conditions for efficient decolorization, biostimulation to increase effectiveness of microbial consortium, its tolerance to high salt concentration and non-specific ability towards decolorization of eight azo dyes, are reported. The optimum inoculums concentration for maximum decolorization were found to be 1–5 ml of 1800 ± 50 mg l1 MLSS and 37 C, respectively. The decolorization efficiency was 70–90% during 48 h. The biomass showed efficient decolorization even in the presence of 10% NaCl, as tested with RB5. In the presence of flavin adenine dinucleotide (FAD) more than 99% decolorization occurred in 8 h. The decolorization of RB5 was traced to extracellular enzymes. The effectiveness of acclimatized biomass under optimized conditions towards decolorization of two types of synthetic dye bath wastewaters that were prepared using chosen azo dyes is reported.
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Catalytic ozonation for the treatment of synthetic and industrial effluents - Application of mesoporous materials: A review(Journal of Environmental Management)
(Santosh P. Ghuge, Anil K. Saroha
,211,,83-102,Year : 2018)
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Several industries generate a large amount of effluent containing concentrated refractory organic compounds. Numerous conventional techniques are available for the treatment of the effluent but these techniques have some limitations like less degradation efficiency, more power consumption and unsuitable for high toxicity level. Catalytic ozonation has been receiving great attention in recent years to tackle the limitations of conventional effluent treatment processes. Various materials have been explored as catalysts in the catalytic ozonation to enhance degradation of organic compounds present in the effluent. The present paper includes superficial review of catalytic ozonation studies performed using different catalysts like alumina, activated carbon, ceria etc. The mesoporous materials have unique surface properties such as large surface area, uniform pore sizes and thick pore walls. These surface properties play vital role in facilitating mineralization of refractory organic compounds. The present work aims to review the information available on the use of mesoporous materials in catalytic ozonation. It was observed that mesoporous materials are utilized in only 15 % of the total catalytic ozonation studies published in the literature during the last 12 years (2005-17). The catalytic ozonation studies performed using mesoporous materials have been tabulated in the present work. It has also been observed from the overall review that around 90 % of catalytic ozonation studies are performed for the treatment of synthetic effluent rather than industrial effluent. It is, therefore, needed to study the application of catalytic ozonation for the treatment of industrial effluent. It has been found that nearly half of the reported catalytic ozonation studies for the treatment of industrial effluent are of specific types of industries like textile and petroleum refineries. The catalytic ozonation studies for the treatment of industrial effluent have also been listed in this manuscript. It would be interesting to apply catalytic ozonation involving mesoporous materials for the treatment of effluent of different industries to study its efficiency, applicability and influence of different operational parameters. The authors offer suggestions of treating industrial effluent by catalytic ozonation using mesoporous materials due to their unique textural properties.
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Towards developing a representative biochemical methane potential (BMP) assay for landfill waste-a review(Bioresource Technology)
(Pearse, L.F., Hettiaratchi, J.P.A., & Kumar, S.,,,,Year : 2017)
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The applicability of slurry-based (semi-liquids) BMP assay in determining biodegradation kinetic parameters of landfilled waste is critically reviewed. Factors affecting the amount and rate of methane (CH4) production during anaerobic degradation of municipal solid waste (MSW) and optimal values of these factors specific to landfill conditions are presented. The history of conventional BMP, and some existing procedures are reviewed. A landfill BMP (LBMP) assay is proposed that manipulates some of the key factors, such as moisture content, particle and sample size, that affects the rate of CH4 production and the CH4 generation potential of landfilled MSW (LMSW). By selecting proper conditions for these factors, a representative BMP assay could be conducted to ensure accurate determinations of CH4 potential and the kinetic parameters k; first order rate coefficient and Lo; methane generation potential.
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DETERMINATION OF AIR CHANGE RATES BY USING INDOOR CO AS TRACER: APPLICABILITY AND ENVIRONMENTAL ISSUES(Environmental Engineering and Management Journal)
(Deepanjan Majumdar, Dinakar Patil, Raman Malviya, Jitendra Trivedi,15(2),,421-427,Year : 2016)
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Air change rates and ventilation of a room was determined by CO Tracer Decay Technique. The tracer was generated by burning bulk amount of mosquito coils, an easy and low cost method of CO generation. The temporal decay in CO concentration in indoor air under closed and open room conditions were determined by collecting indoor air periodically at a few minutes interval in Tedler Bags and analyzing the same for CO. The air changes rate per hour (ACH) was calculated from the temporal decline of indoor CO concentration in indoor air. The study indicated that CO generated by a low cost and easily applicable method like combustion of organic materials could be used as a tracer to determine ACH and ventilation rate. Background CO in air could be suitably used for ventilation studies in rural/urban slum dwellings in India and many other countries where substantial CO is found indoors due to combustion of biomass, incense sticks and mosquito coils.
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Impact of highway construction on water bodies: a geospatial assessment(Environmental Monitoring and Assessment)
(Ritesh Vijay, Vikash kumar Kushwaha, Trupti Mardikar, P. K. Labhasetwar,189,8,401,Year : 2017)
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India has witnessed a massive infrastructure boom in the past few years. One of such projects is National Highway-7 (NH-7), a North-South highway connecting Kanyakumari, Tamil Nadu, to Varanasi, Uttar Pradesh, traversing many water bodies. The present study aims to assess the pre- and post-construction impact due to existing, new and widened NH-7 on the physical status of the water bodies, using remote sensing techniques. Satellite images spanning 22 years were procured and analysed for change detection in land use and land cover within the waterbodies. The study indicates that construction activities have led to transformation within the water bodies regarding reduction in area and inter-changing of land use and land cover classes, in turn leading to siltation and reduction of recharge.
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Estimation of rainfall-runoff using Curve Number: a GIS based development of Sathanur reservoir catchment(Journal of Environmental Science and Engineering)
(Ritesh Vijay Ashutosh Pareek Apurba Gupta,48,4,267-270,Year : 2006)
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A GIS based algorithm has been developed to estimate the rainfall-runoff relationship of Sathanur reservoir catchment based on Soil Conservation Service (SCS) model. The landuse and soil maps were prepared in Arc/Info 9.0 and an arc macro language (AML) programme was developed to assign curve number based on landuse and soil classification including hydrological condition of the area. The algorithm was executed successfully by rainfall data for computation of runoff depth in all the sub watersheds. The study is important for a watershed, which does not have runoff records and can be used for planning of various water conservation measures.
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Enhancing adsorption of nitrate using metal impregnated alumina(Journal of Environmental Chemical Engineering )
(S Jain, A Bansiwal, RB Biniwale, S Milmille, S Das, S Tiwari, Siluvai Antony Praveen,3,4,2342-2349,Year : 2015)
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https://doi.org/10.1016/j.jece.2015.08.009
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An insight into spray pulsed reactor through mathematical modeling of catalytic dehydrogenation of cyclohexane(International journal of hydrogen energy)
(Siluvai Antony Praveen, RA Sohony, RB Biniwale,39 13,,6944-6952,Year : 2014)
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https://doi.org/10.1016/j.ijhydene.2014.02.111
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Evaluation of Antimicrobial properties of copper for disinfection in a point of use water treatment system using E.Coli and Salmonella as indicator bacterium - communicated (Earth Science and Climatic Change)
(Dutta, D., Nagarnaik, P. M., Labhasetwar, P,,,,Year : 2012)
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No information is available
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Prediction of remotely sensed cloud related parameters over an inland urban city of India(Annals of GIS)
(Navneet Kumar, Anirban Middey and Padma Rao,22,Issue 1,71-84,Year : 2015)
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Artificial neural network (ANN) is a mathematical model useful for forecasting on the any type of available data. This tool is not only useful in environment but also covers wide ranges of applicability. Utilizing this model, a study was carried out in an inland area of Nagpur for forecasting satellite-derived cloud parameters. Nine ANN architects are developed based on five pollutant parameter (aerosol optical depth, RSPM, SPM, SO2, NOx), meteorological and some cloud parameter. The models are used to simulate concentration of pollutants as well as the forecast and validation of cloud top temperature, cloud ice water path and cloud liquid water path during different seasons (winter, pre-monsoon and post-monsoon). Models based on back-propagation neural network were tested using the collected data of study area. The ANN models were trained using gradient descent algorithms to check the robustness and adaptability of the models. ANN models based on both satellite and ground-based data variables demonstrate the best performance and are skilled at resolving patterns of pollutant dispersion to the atmosphere during 2006–2013 for Nagpur city
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MIKE 3 as a modeling tool for flow characterization: A review of applications on water bodies
(R.V. Moharir, K. Khairnar, W.N. Paunikar,,,p 32-43 ,Year : 2014)
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No information is available
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Estimation of Vehicular Pollution from Transport sector for Madras City(Research Journal of Chemistry and Environment)
( K.Thanasekaran ,Vol.2 (3),,p. 45-52 ,Year : 2016)
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No information is available
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Microbe assisted phytoremediation of oil sludge and role of amendments (International Journal of Environmental Sciences & Technology)
(,,,,Year : 2015)
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A mesocosm study was evaluated to elucidate the influence of amendments such as microbial consortium, plant (Vetiveria zizanioides), bulking agent (wheat husk) and nutrients on remediation of oil sludge over a period of 90 days. The experiment was conducted in a 15 m2 plot which was divided into eight units comprising of soil sludge mixture (1:1) at CSIR-NEERI premises. During the experiment, oil degradation was estimated gravimetrically and polyaromatic hydrocarbons (PAHs) were quantified on GC–MS. Additionally, dehydrogenase activity was also monitored. The treatment integrated with bulking agent, nutrients, consortium and plant resulted in 28-fold increased dehydrogenase activity and complete mineralization of higher PAHs. Furthermore, 72.8 % total petroleum hydrocarbons (TPH) degradation was observed in bulked treatment with plant, nutrients and consortium followed by 69.6 and 65.4 % in bioaugmented treatments with and without nutrients, respectively, as compared to control (33.4 %). A lysimeter study was also conducted simultaneously using Vetiver and consortium to monitor groundwater contamination by heavy metals in oil sludge which showed a marked decrease in the concentrations of metals such as lead and cadmium in leachates. This study validates a holistic approach for remediation of oil sludge contaminated soils/sites which is a burning issue since decades by the use of microbe assisted phytoremediation technology which not only solves the problem of oil contamination but also takes care of heavy metal contamination.
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Particulate from Stone Crushing Industry: Size Distribution and Health Effects( Journal of Environmental Engineering and Science)
(R. Jayabalou, S. Swarnalatha and Kalpana Balakrishnan,Vol. 132 3,,p. 405-414,Year : 2016)
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No information is available
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Biodegradation enhancement of purified terephthalic acid wastewater by coagulation-flocculation process as pretreatment(Journal of Hazardous Material )
(M. Karthik, Nishant Dafale, Praduamya Pathe & Tapas Nandy
,154 1-3,,721-730,Year : 2008)
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In this work, the coagulation–flocculation process was used as pretreatment for purified terephthalic acid (PTA) wastewater with the objective of improving its overall biodegradability. PTA production generates wastewaters with toxicants p-xylene [1,4-dimethyl-benzene (C8H10)], a major raw material used in the production process, along with some of the intermediates, viz., p-toluic acid, benzoic acid, 4-carboxybenzaldehyde, phthalic acid and terephthalic acid. These compounds affect the bio-oxidation process of wastewater treatment; hence removal of these constituents is necessary, prior to conventional aerobic treatment. This paper addresses the application of coagulation–flocculation process using chemical coagulants, viz., aluminium sulphate (alum), polyaluminium chloride (PAC), ferrous sulphate and ferric chloride in combination with anionic polyelectrolyte. Polyaluminium chloride (PAC) in conjunction with lime and polyelectrolyte removed about 63.1% chemical oxygen demand (COD) and 45.2% biochemical oxygen demand (BOD) from PTA wastewater. Coagulation–flocculation process coupled with aerobic bio-oxidation treatment of PTA wastewater achieved, COD & BOD removals of 97.4% and 99.4%, respectively. The biodegradability enhancement evaluated in terms of the BOD5/COD ratio, increased from 0.45 to 0.67 at the optimum conditions. The results obtained from these studies indicate that the coagulation–flocculation process could be a suitable pretreatment method in reducing toxicity of PTA wastewater whilst enhancing biodegradability for aerobic biological treatment scheme.
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