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"Chloride ion: A promising hole scavenger for photocatalytic hydrogen generation"(International journal o f hydrogen energy)
("Girivyankatesh Hippargi, Priti Mangrulkar, Anushree Chilkalwar,
Nitin Labhsetwar, Sadhana Rayalu", 43 ,,6815-6823,Year : 2017)
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"The investigation pertains to elucidation of promising role of in-situ chloride ions generated during the photoreduction of HAuCl4 as an internal sacrificial donor for photocatalytic hydrogen generation. The hydrogen evolution rate (HER) observed was 4.16 mmol h 1 using in-situ route of photocatalyst formation which is significantly higher than the conventional route of formation of recovered photocatalyst. This unreported and unprecedented enhancement is explained on the basis of role of chloride ions released from the gold precursor. Experimental data inferring the effect of chloride ions on photocatalytic hydrogen generation using AueTiO2 are also briefly explained. The role of anionic sacrificial donors suggests several potential possibilities for their applications in photocatalysis considering their presence in wastewater as well as their low cost and abundant availability. The work also introduces one-step photodeposition and hydrogen generation process against traditional recovered photocatalyst, wherein the catalysts were prepared first by normal route of photodeposition, recovered and then employed for hydrogen generation."
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Combined electro-Fenton and biological processes for the treatment of industrial textile effluent: Mineralization and toxicity analysis(Journal of Hazardous, Toxic, and Radioactive Waste (ASCE))
(P. S. Roshini, R. Gandhimathi, S. T. Ramesh, P. V. Nidheesh,214,,,Year : 2017)
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Abstract: The longer time required for complete mineralization in the electro-Fenton (EF) process can be rectified by combining the EF process with a biological method. This paper analyzes textile wastewater treatment by ntegrating EF and biological processes. The removal of color, chemical oxygen demand (COD), and total organic carbon (TOC) by the EF process was 63, 48, and 29% respectively. Further treatment of this wastewater by a biological process resulted in removal of 85% of color, 86% of COD, and 56% of TOC. In addition, better mineralization of dyes requires integration of aerobic and microaerophilic conditions. The phytotoxicity and microbial toxicity analysis of the treated wastewater shows that there is a significant reduction of toxicity compared with the raw wastewater. Therefore it is recommended that the combined EF and biological degradation processes be applied in the treatment of textile wastewater for removing color, COD, and TOC effectively.
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Design and development of indoor device for recycling of domestic vegetable scrap(Environmental Technology)
(Harshita, J., Krupanidhi, S., Kumar, S.,&Wong, J.W.C.,37,,326-334,Year : 2016)
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No information is available
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Polycyclic aromatic hydrocarbons over a tropical urbon and a high altitude Himalayan Station in India Temporal variation and source apportionment (Atomospheric Reserch)
(Ray, D; Chatterjee,A; Majumdar,D; Ghosh,S.K; Raha.S,197,,331-341,Year : 2017)
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The temporal variations and major sources of polycyclic aromatic hydrocarbons (PAH) intrinsic to PM10 were investigated over a tropical urban atmosphere on the Indo-Gangetic Plain (IGP) and for the ?rst time over a high altitude urban atmosphere at eastern Himalaya in India. Samples were collected over Kolkata, a megacity and Darjeeling, a high altitude (2200 m asl) hill station in eastern India during the dry season (October 2015–May 2016). Fourteen PAHs were detected and quanti?ed over Kolkata and Darjeeling during three consecutive seasons, viz., post-monsoon, winter and pre-monsoon. The total-PAHs concentrations were in the order of winter (78.08–146.71 ngm?3) > post-monsoon (83.42–113.52 ngm?3) > pre-monsoon (37.65–109.27 ngm?3) at Kolkata, whereas post-monsoon (22.72–36.60 ngm?3) > winter (8.52–28.43 ngm?3) > pre-monsoon (5.45–13.34 ngm?3) at Darjeeling. The observed seasonality of PAHs at Kolkata vis-a-vis Darjeeling has been explored in the light of anthropogenic activities, boundary layer dynamics and meteorological parameters such as temperature, relative humidity, wind speed and solar radiation. Negative correlation was observed between total-PAHs and temperature, wind speed and solar radiation over Kolkata and Darjeeling. The positive matrix factorization (PMF) model calculations suggested that coal (26%), petrol (24%) and diesel (17%) combustion, commercial and household kitchens (18%) and municipal solid waste incineration (15%) are the possible contributors to the PM10 associated PAHs over Kolkata whereas diesel (37%), commercial and household kitchens (23%), coal (21%) and petrol (20%) are the possible PM10 associated PAH sources over Darjeeling.
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Interactive web-based data generation software applicable for river engineering(International Journal of Scientific Research in Computer Science Applications and Management Studies)
(Girish S. Katkar, Dinesh A. Lingote, Ritesh Vijay,7,6,,Year : 2018)
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It's an era of automated system, many researching organizations are working on automated system to ease burden of conventional systems. Among all, if data generation system for large geographical area like: River modelling, Biodiversity and air quality monitoring is considered then conventional method used for data generation realizes burdensome, time consuming, never ending process and sometime fails even. Consequently, it is very essential to develop auto data generation techniques which will generate large data to support conventional method (form a team of researcher, carry-out field work, collect sample, test it with the instruments and generate data). This research paper introduces a web-based software developed for the Kanhan river to generate river water quality data for its modelling. Software uses different data generation techniques like: data extraction, data estimation, data generation using public-partnership and data generation using scientific software respectively. This research paper also demonstrates its public portal utilized for the public health management.
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Process for the storage delivery of hydrogen using catalyst(US Patent)
(RB Biniwale, JV Pande, AA Shukla, , AA Shukla,90,,05,,571,Year : 2015)
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No information is available
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Assessment of ambient air quality in the surrounding area of Compost plant Delhi, India(Malaysian Journal of Science)
(Prakash, M., Mandal, P., Chaturvedi, M. K.,Srivastava , A.,,,,Year : 2017)
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No information is available
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Performance Evaluation of Solar Power Based Electrolytic Defluoridation Plants in India(International Journal of Water Resources and Arid Environments )
(Subhash Andey, Pawan Kumar Labhasetwar, Gajanan Khadse, Poonam Gwala, Prashant Pal and Prashant Deshmukh,,,,Year : 2017)
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No information is available
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Air Quality Index - A Comparative Study for Assessing the Status of Air Quality(Engineering and Technology)
(Shivangi Nigam, B. Padma S. Rao, N. K. Mandal, N Kumar, and C. Chauhan,06,No. 02,,Year : 2016)
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Air quality Index is a tool for identify the present scenario of air quality. Six different methods of estimating Air quality Index (AQI) based on four pollutants synergistic effect viz., PM 10 , PM 2.5 , SO 2 and NO 2 were used to compare the prevailing ambient air quality in the study region. The average concentration of PM10, PM 2.5 , SO 2 and NO 2 are in 82.59, 61.61, 27.19 and 3.92 µg/m 3 in was observed in May June respectively. Similarly the levels in June-July 2014 were observed as 57.96, 43.27, 14.24 and 2.54 µg/m 3 respectively while the concentration in July-August 2014 were found as 39.37, 32.89, 10.44 and 2.92µg/m 3 respectively, in August-September 2014 were 30.08, 32.53, 12.18 and 2.90 µg/m 3 respectively and the levels in Sept-Oct 2014 were found as PM 10 , PM 2.5 , SO 2 and NO 2 are in 93.66, 94.04, 23.39 and 6.85 µg/m 3 respectively. Seasonal and daily AQI calculation revealed that air quality status in the study region under various classes ranging from good, moderate, satisfactory and unacceptable class for different AQI calculation
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Chemical Speciation and Source Assignment of Particulate (PM10) Phase Molecular Markers in Mumbai.( Aerosol and Air Quality Research)
(Mihir Herlekar, Abba Elizabeth Joseph,Vol. 12,,1247-1260,Year : 2012)
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Particulate matter (PM10) has emerged as the single most important pollutant across Indian cities, as its levels exceed the regulated standards at most places. PM10 was collected and analyzed at seven sites representing different land use patterns in Mumbai during 2007-08 for organic carbon (OC) and elemental carbon (EC). OC was further speciated for organic markers, which are useful for identifying sources. Average PAH concentration ranged from 47.84 ± 14.07 to 247.70 ± 163.19 ng/m^3. n-alkanes concentration varied from 157.20 ± 35.28 to 759.13 ± 451.65 ng/m^3. Hopanes and steranes showed the highest concentrations of 94.14 ± 28.66 and 32.64 ± 11.79 ng/m^3 and lowest concentrations of 7.81 ± 2.00 ng/m^3 and 2.83 ± 0.73 ng/m^3, respectively. The values for levoglucosan varied from 0.69 ± 0.46 to 3.23 ± 2.07 ?g/m^3. The percentage contribution of the sum of the concentrations of these compounds to the total organic carbon varied from 1.7-5.1%. The sources contributing to particulate PAHs were identified using diagnostic ratios. Indicators like the Carbon Preference Index (CPI), Cmax and Plant Wax Number (%WNA) were used to identify the relative contributions to n-alkanes from anthropogenic and biogenic emissions. The source apportionment results and also the concentration trends for these molecular markers indicate that anthropogenic sources, especially vehicular exhaust, wood combustion and coal combustion, are mainly responsible for the organic fraction of particulate matter in Mumbai city. The sources identified qualitatively in this work can help in selecting the appropriate source profiles for estimating the quantitative contribution of these sources.
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effects on enzymatic hydrolysis and ultrastructural changes(Journal of Environmental Health Science and Engineering)
(JagdishGabhane, SPM.Prince William, Vaidya, A.N. Anand, D. Wate, S,12,,,Year : 2012)
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No information is available
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Surveillance of Drinking Water Quality for Safe Water Supply—A Case Study from Shillong, India(Water Resource Manag)
(S. N. Pimpalkar, P.K. Labhasetwar,,,3321–3342,Year : 2012)
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To ascertain the quality of drinking water being supplied and maintained, it is necessary to conduct water quality surveillance for evolving suitable strategy for future planning. In the present investigation, water quality was monitored in treatment plants, service reservoirs, and at consumer ends in three seasons to assess the baseline water quality status at Shillong in Meghalaya. There are three water treatment plants at Shillong namely Umkhen, Mawlai and GSWS with design capacities of 1.5, 3.4 and 34 Million liter per day (MLD) respectively. Each treatment plant is having rapid sand filtration followed by disinfection. The study reveals that the physico-chemical parameters of water quality at consumer end meets Indian drinking water quality standards (BIS 1991) after conventional treatment followed by disinfection, whereas the bacteriological parameters for raw water sources exceed the permissible limit indicating the treatment need for drinking purposes. Throughout year the average feacal coliform contamination at service reservoir and to consumer end were found as 44 to 156 CFU/100 ml which may be attributed to the general management practices for maintenance of service reservoirs and the possibility of en route contamination.
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Non-specificity of phage enzymes(International Journal of Pharma and Bio Sciences)
(W. N. Paunikar, S.G. Sanmukh, T. K. Ghosh,,,p B546-B552,Year : 2011)
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No information is available
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Causes and Remedies For Filamentous Foaming In Activated Sludge Treatment Plant.(Global NEST Journal)
(Pal P
,Vol 16, 4,762-772,Year : 2014)
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No information is available
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Performance Evaluation of Common Effluent Treatment Plant for Tanneries in Tamil Nadu(Indian Assocation of Environment Management)
( V. Kothandaraman, A.K. Biswas,Vol. 27(2),, p. 184-188,Year : 2016)
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No information is available
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Need for reducing groundwater contamination through improved on-site sanitation facilities and framework(Journal of the Indian Chemical Society)
(N. Thacker
,,,,Year : 2016)
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No information is available
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Removal of synthetic dyes from wastewater by adsorption using P.chrysosprium
(T. Swaminathan , France,,,,Year : 2016)
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No information is available
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Development and validation of microbial bioassay for the quantification of potency of the?antibioticcefuroxime axetil(Analytical Methods (Royal Society of Chemistry, UK))
(Nishant Dafale, Uttam Semawl, Piyush Agarwal, G. N. Singh
,5,,690-698,Year : 2013)
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Cefuroxime is a semi-synthetic antibiotic of the cephalosporin group and has broad-spectrum antimicrobial activity. HPLC methods, detailed in various pharmacopoeias, are generally used for the quantitative determination of the potency of cefuroxime but are unable to determine its bioactivity against microorganisms. In comparison to HPLC methods bioassay methods are simple and inexpensive however, a bioassay for the determination of both the potency and bioactivity of cefuroxime has not yet been reported in any pharmacopoeia. This article is focused on the development of a bioassay method for the quantification of cefuroxime axetil in pharmaceutical preparations. The bioassay was performed with different microbial strains and Kocuria rhizophila ATCC-9341 was selected as the most susceptible microorganism against cefuroxime axetil. The percent potency of market samples were estimated by a two-level bioassay method. The potency of market samples of Biocef, Ceftech and Ceftum were found to be 100.71% (RSD 1.09%), 101.07% (RSD 1.16%) and 100.44% (RSD 1.08%), respectively. The Biocef intermediate precision RSD between days and between analysts were 1.08% and 1.01%, respectively. The specificity of the bioassay for the analysis of Biocef was also studied in parallel with the Pharmacopoeial HPLC method and the potency was calculated as 101.09%. Results show that a bioassay method can be used for the quality control of cefuroxime axetil in raw materials and pharmaceutical preparations.
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Removal of chromium and iron from real textile wastewater by sorption on soils(Journal of Hazardous, Toxic, and Radioactive Waste (ASCE))
(Vandana Sreedharan, K. V. Krithishna, P. V. Nidheesh,214,, 06017002,Year : 2017)
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Abstract: Discharge of textile effluents creates serious environmental problems. This paper investigates the ability of various natural and modified soils to remove heavy metals present in the textile wastewater. Natural soils such as kaolinite, bentonite, and laterite, along with modified soils such as organoclay and biopolymer-amended laterite are considered as the potential adsorbents. Iron and chromium present in the textile wastewater are considered as model pollutants. Batch adsorption studies are carried out to determine the heavy metals sorption capacity of soils. The heavy metals removal efficiency of soils follows the order bentonite > biopolymer amended laterite soil > laterite soil > kaolinite > organoclay. Almost complete removal of heavy metals is observed with bentonite and biopolymer-amended laterite. Therefore soil is determined to be a cost-effective and efficient adsorbent for the removal of heavy metals from textile wastes.
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Characterization of municipal solid waste in high-altitude sub-tropical regions(Environmental Technology)
(Kumar, S., Dhar, H., Nair, V.V., Bhattacharyya, J.K., Vaidya, A.N., &Akolkar, A.B.,37,,2627-2637,Year : 2016)
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Solid waste management (SWM) is one of the most challenging issues owing to lack of authentic data on different elements of SWM, namely, storage, collection, transportation, separation, processing and disposal. This study presents an assessment of existing status of SWM in conjunction with municipal solid waste (MSW) generation rates, physical and chemical characterization of MSW in high-altitude sub-tropical regions. Weighing of empty and fully loaded trucks per trip revealed total quantity of MSW collected. The average efficiency of MSW collection was 70%. From the baseline data, it is inferred that the population and MSW generation rates are not co-related. The collected MSW included biodegradables (organic wastes), paper, plastic, glass, ceramics, metals, inert materials, ash and debris. The data analysis indicated that the biodegradable components dominate the characterization at 54.83% followed by inert, ash and debris at 21.06%, paper at 8.77%, plastic at 8.18%, glass and ceramics at 4.45% and metals at 2.71%. Statistical measures were also applied and 90% confidence interval (CI) was generated for the characterization data measuring its statistical significance.
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