| 书目名称 | Sustainable Environment | | 副标题 | Proceedings of NERC | | 编辑 | Deepmoni Deka,Subrata Kumar Majumder,Mihir Kumar P | | 视频video | | | 概述 | Presents selected peer-reviewed papers presented in NERC 2022.Enriches understanding by including contributions from policymakers, industrialist, and academicians.Showcases the best R&D activities fro | | 图书封面 |  | | 描述 | .This book covers topics that addresses the global environmental issues, their challenges, and mitigation strategies for sustainable development. Some of the major challenges global environment is facing currently are global warming induced climate change because of which various extreme weather events such as flood, drought, cyclone, forest fires have increased. Industrialization with urbanization and human anthropogenic activities have caused detrimental effect on the environment resulting in environmental pollution (air and water pollution), deforestation, degradation of ecosystems, soil erosion, ground water depletion, drinking water scarcity, biodiversity loss, depletion of fossil fuels, etc. Therefore, it has become utmost necessary to switch to significant lifestyle stages along with conservation of natural resources for a sustainable environment. Sustainable environment may be defined as the practice of responsibly managing natural resources and protect overall ecosystem to support health and well-being of present and future generations. One of the major environment sustainability is the use of renewable sources of energy such as solar, wind, hydroelectric, and biomass whic | | 出版日期 | Conference proceedings 2023 | | 关键词 | Environment Pollution and Remediation; Global Warming and Climate Change; Water and Waste-water Treatm | | 版次 | 1 | | doi | https://doi.org/10.1007/978-981-19-8464-8 | | isbn_softcover | 978-981-19-8466-2 | | isbn_ebook | 978-981-19-8464-8 | | copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapor |
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Front Matter |
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Multi-metal Adsorption and Cyclic Desorption Characteristics of Zn+2 and Cu+2 Constituting Multi-com |
Prabhat Kumar Patel,Lalit Mohan Pandey,Ramagopal Uppaluri |
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Abstract
Heavy metals present in water environments, such as copper, lead, iron, and others, may cause substantial risk owing to their toxic effect, which may pose a risk to diverse human body systems. These metals come in contact with the water bodies due to their various applications such as medical, industrial, technological, and agricultural industries. A technical report submitted to Meghalaya Basin Management Agency, Shillong, confirms that the metal concentration of mining discharge of the Jaintia Hill coalfield (Basin and Agency in Study on mining affected areas and its impact on livelihood, 2019) [5] is having significant relation with the metal composition presented by Morcali et al. (J Environ Chem Eng 2:1655–1662, 2014) [13]. Both conventional and novel separation schemes exist for the resolution of such stiff prepositions. Notable processes among these can be formally classified into three categories, namely schemes involving greater usage of chemical media, sorptive approaches, and biomaterials and processes. Multiple heavy metal containing wastewater streams (with Cu, Zn, Pb, and Fe) can be characterized to be with lower metal concentrations. For such systems, chelating and i
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Investigation of Microalgae Growth in a Mixture of Kraft Paper Industry Effluent and Biogas Slurry: |
Isfakur Rasul,Bikram Chakraborty,Dhanapati Deka |
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Abstract
The experiment aimed to grow . in a mixture of Kraft paper effluent and biogas slurry, to treat industrial wastewater and produce biodiesel. Cultivation of . in a batch reactor for 18 days was done in six different proportions of (Kraft paper effluent: biogas slurry, v/v) 20%P, 40%P, 60%P, 80%P, 100%P, 100% slurry, and also BG11 as control media. Growth of algae was decreased with an increase in the concentration of Kraft paper effluent, and the maximum growth was found in 100% slurry followed by 20%P and 40%P. Biomass productivity was found to be the highest in 100% slurry 37.53 mg/L/day followed by 36.82 mg/L/day in 20%P. The highest lipid content was observed at 13.85%, w/w in 20%P followed by 13.83% (w/w) in slurry media. Significant reductions in physicochemical parameters from the cultured media were observed after being treated with algae. The percentage reductions of heavy metals Cd, Cu, Mn, Pb, Co, and Fe from the 20% P (1:4, v/v) media were determined to be 58.75%, 76.19%, 95.32%, 73.13%, 77.01%, and 88.08%, respectively. Above 75% reduction of total nitrogen was observed from all cultured media. Biodiesel was produced from the lipid extracted from algal biomass that was
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Pharmaceutically Active Compounds’ (PhACs) Threat: An Environmental Prospective |
Ravi Ravi,Animes Kumar Golder |
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In the last decade, the outbreak of Covid-19, swine flu and bird flu have increased the use of medicines in humans and other animal species, especially livestock animals. Over 1.3 lakh tons of antibiotics are used in animal feed globally, and India is 4th highest user of antibiotics. As a result, the production of Pharmaceutically Active Compounds (PhACs) containing waste has increased alarmingly. Expansion of the antimicrobial resistance microbes is a major concern that can give rise to some lethal microbes. India has > 30% of the global pharma industries and generates a massive amount of PhACs containing effluents. Herein, we have reviewed the reported studies over the last decade to illustrate the contamination of many PhACs in various water bodies, their toxic impact on the environment, and several degradation methods and trends for future research are also suggested. The national and global distribution of PhACs confirmed their spreading throughout the world in surface (rivers, lakes, ponds) and groundwater (wells). PhACs not only affect aquatic organisms, microbes, and humans but also hinder the activity of wastewater treatment plants (WWTPs). Most of PhACs (with at least 10%
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Removal of Methylene Blue Dye from Textile Industry Wastewater Using Plantain Pith |
P. B. Lakshmipriya,Rosemary Francis,B. Gayathri |
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The study emphasizes a sustainable approach to addressing the water pollution caused by the textile industries. The wastewater discharged from textile mills is directly released into water bodies which reduces the quality of the water bodies. Plantain pith, a natural and sustainable adsorbent, is experimented for the elimination of a cationic dye present in textile effluent in this paper. The maximum removal efficiency was found by conducting tests with plantain pith and bark. Influence parameters like pH, initial dye concentration in wastewater, the adsorbent amount, and surface area of the adsorbent were investigated. Each experiment was conducted separately in a glass tank, and absorbance was found using a spectrophotometer. The dried samples of plantain pith and plantain pith bark were made and checked for absorbance under various parameters along with the fresh samples. Plantain pith and bar are found to effectively remove methylene blue dye. The contact period, pH, the adsorbent amount, and the dye concentration in the solution were found to be the major parameters that affect the removal efficiency. A rise in pH resulted in a drop in the removal efficiency, and the most effe
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Enhancement of Biomass and Lipid Production via Algal-Bacteria Consortia by Treating Rubber Wastewat |
Angana Chaudhuri,Nongmaithem Debeni Devi,Dipesh Kumar,Surajit Das,Vaibhav V. Goud |
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The current study explores a sustainable process involving enhanced production of biomass in association with wastewater treatment. In this study, a mixed culture of a new microalga strain named, . sp. DDVG I and indigenous bacteria that were readily available in rubber wastewater (RWW) were cultivated for concomitant bioremediation of RWW and enhanced lipid production of the biomass. Initially, individual cultures of . DDVG I and indigenous bacteria, viz. . sp. 0S26, . 0S36, . ST13, . DF12, were cultivated in RWW diluted with distilled water (DI) in varying concentrations ranging from 5 to 100%. The diluted RWW, which showed superior growth of all the strains, was further used for the cultivation of consortium. The species were co-cultivated autotrophically under the inoculation ratios of 1:1, 1:2, 2:1 (. sp. / bacteria) based on cell density for 16 days cultivation period. The consortium‘s lipid content and productivity of the biomass were analyzed on every 4th day. The maximum biomass productivity of 1.15 g/L.d and having lipid content of 41% were achieved by the microbial consortium of . sp., . sp. 0S26 and . 0S36 in RWW. The consortium exhibited maximum biomass harvesting effi
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Assessment of Water Quality Parameters of Three Tributaries of the Brahmaputra River System Flowing |
Simanta Goswami,Mridul Dev Adhikary,Ankuran Pathak,Arup Kumar Misra |
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In this study, assessment of water quality of the tributaries of the Brahmaputra River System namely Mora Bharali, Digboi, and Bega Rivers has been carried out. These three rivers have been considered for the study because these rivers flow through urban agglomerations and industrial clusters. The assessment has been made in terms of Water Quality Index (WQI) parameters namely pH, Biochemical Oxygen Demand (BOD), Dissolved Oxygen (DO), and Fecal Coliform. Further, the catchment characteristics have been studied in order to identify the primary sources of pollutant load in the rivers and subsequently devise a pollution abatement strategy.
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Bioremediation of Oil Spill Cleanup: Case Studies of Two Major Oil Spills |
Bikashita Shyam,Ranjan Phukan,Chinmoy Das |
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Oil spills are possible accidents that occur sometimes naturally or most often during the transporting oil through pipelines, tanks, etc., or accidents such as blowouts that lead to an adverse impact on the environment and the living beings on it. Various physical, chemical, and biological approaches are utilized to counteract this impact. The Office of Technology Assessment estimates that following a big leak, current mechanical technologies often only recover 10–15% of the oil. Biological methods include bioremediation in which microorganisms or some nutrients are used to degrade the pollutants or the hydrocarbons in soil or water and convert it into less harmful components. Because petroleum hydrocarbons occur naturally in all marine settings, many different microbes have evolved the ability to utilize hydrocarbons as sources of carbon and energy for growth. Bioremediation is a more environmentally friendly method and more cost effective. Bioaugmentation and biostimulation are the two main approaches to oil spill bioremediation. This study highlights the application of bioremediation techniques for oil spill cleanup of two major marine oil spills. Since its successful use during
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Fabrication of Borate Cross-Linked Graphene Oxide Framework (GOF)-Laminated UF Membrane for Heavy Me |
Ankush D. Sontakke,Ankit Tiwari,Mihir K. Purkait |
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In this work, the graphene oxide framework (GOF) was synthesized by cross-linking GO with the inorganic borate functional groups of sodium tetraborate using dopamine as a crosslinker. The obtained GOF was further characterized via FTIR, EDX, and XRD. Moreover, the GOF-assisted UF membranes were fabricated using PSF–PEG flat sheets as the substrate via a layer-by-layer (LBL) assembly technique. Further, the separation performance of the fabricated membranes of different GOF compositions was estimated using pure water flux (PWF) and the rejection rate study for heavy metal ions. The GOF-assisted membrane presented better permeability and heavy metal ion rejection rates for Pb., Cd., and Cr.ions with 96, 94, and > 90% rejection of feed (50 mg/L). Furthermore, the developed GOF demonstrated robust surface characteristics as well as good compatibility for membrane fabrication.
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Fluorescent Carbons Dots from Bio-Wastes Immobilized on Mesoporous Silica as an Affordable Next-Gene |
Tuhin Bhattacharjee,Smriti Rekha Das,Hiranya Kumar Choudhury,Deepmoni Deka,Gitanjali Majumdar |
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Water soluble and fluorescent C-dots were synthesized from biomass wastes such as . (tea), tea leaves; . (silikha), silikha leaves; . (papaya) leaves; . (paan), and peel of . (grape fruit) through pyrolysis and microwave process. The dynamic light scattering measurements show the size of the C-dots within the range 8.9–1.8 nm, all having negative zeta potentials within the range −13.4 to −18.9. The negative zeta potential is due to the presence of COO– group as evidenced by the IR spectroscopy. The photoluminescence study was conducted for all carbon dots in which all exhibited excitation-dependent fluorescence. The synthesized C-dots have been embedded in previously synthesized MCM-41. Blank MCM-41 and C-dot MCM-41 composite was characterized with the help of XRD, which confirms the presence of carbon dots in the MCM-41. The decrease in the heavy metal concentration was monitored with atomic absorption spectroscopy (AAS) which shows efficient adsorption in the composite. The study found that lead adsorption was more effective when papaya C-dot embedded MCM-41 was used as an adsorbent.
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Numerical Analysis of Particulate Matter 2.5 to Get the Diffusion Model of North-East India Using An |
Somnath Das,Dilip Pal |
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With rapid expansion in economy and increased human demand for a healthy living environment, study of air pollutants (particularly Particulate Matter 2.5) has gained a lot of attention in India. Such pollutants cause foggy weather and acute health issues, thus being an urgent environmental issue. It has therefore become necessary to precisely predict PM2.5 concentrations and formulate their diffusion models to accurately monitor and control air pollution. In our work, fractional calculus has been discussed, which is used to obtain the ‘Anomalous Diffusion Equation’ for various places in the north-eastern states. Moreover, by using the ‘Grunwald–Letnikov’ fractional derivative, the variation of diffusion coefficients in North-East India has been calculated explicitly which will be used for the modelling of PM2.5 concentration and diffusion which will be used in weather forecasting and climate analysis.
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Material Recovery from Waste Printed Circuit Board Using Pyrolysis and Metal Extraction |
Bibari Boro,Pankaj Tiwari |
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E-Waste is increasing at an alarming rate of 2 million metric tonnes (Mt) per annum. E-waste covers a wide range of electrical and electronic equipment (EEE), such as mobile phones, laptops and refrigerators. Printed circuit board (PCB) is an indispensable and the most valuable component of any EEE. PCB contributes 2% in the material composition of E-Waste. PCB is a complex mixture of around 30% polymers, 40% metals and 30% ceramics. In the present study, PCBs from computer device were selected to perform pyrolysis experiment (sample of 5 mm × 5 mm chips) to obtain valuable products: solid, liquid and gas. Controlled pyrolysis experiments were performed using thermal gravimetric analyzer (TGA) at 10 °C/min, from ambient to 700 °C with nitrogen flow rate of 40 mL/min. The organic degradation temperature window obtained from TGA was considered to perform lab-scale pyrolysis experiments at different temperature using tubular reactor of 1L capacity. The variation in product distribution with pyrolysis temperature was obtained. The solid yield reduced from 78.63 to 75.55% with the increase in pyrolysis temperature from 450 to 600 °C. However, liquid yield reduced from 11.83% at 500 °C t
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A Study on Workability, Strength and Microstructure of Geopolymer Composites Made with Sustainable M |
M. Leela Sai Rangarao,Arup Kumar Mohapatra,Bulu Pradhan |
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The current research work focuses on evaluation of workability, compressive strength and microstructure of geopolymer concrete (GPc) made with fly ash (FA) and ground granulated blast furnace slag (GGBFS) and that made with fly ash and OPC. The FA-GGBFS, and FA-OPC based GPc were made by replacing FA with GGBFS and OPC, respectively, at 10% and 20% by the mass of total binder. For the preparation of GPc mixes, sodium silicate (SS) solution and sodium hydroxide (SH) solution were used with a mass ratio of 1.2, and NaOH solution was prepared at 6 M and 8 M concentrations. In this study, tests for workability, compressive strength at 7 days and X-ray diffraction (XRD) analysis were conducted on geopolymer composites. The results showed reduction in slump value with increase in the concentration of SH solution and with GGBFS and OPC content in the GPc mixes. Further, the FA-OPC based GPc showed lower slump value than FA-GGBFS geopolymer composites. The FA-OPC geopolymer composites mostly showed lower strength as compared to FA-GGBFS based GPc. From XRD analysis, anorthoclase and albite peak intensities were higher in the geopolymer composites made with FA-GGBFS than GPc with FA-OPC.
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Effect of Chemical Treatment on Decomposition Profiles of Carbon Fiber Reinforced Polymer Composites |
Eledathu Kuriachan Sachin,Pankaj Tiwari,Nelson Muthu |
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The present work aims to reduce the decomposition temperature of cured epoxy resins in carbon fiber reinforced polymer (CFRP) composite during pyrolysis through a pre-treatment process. The CFRP was treated with different concentrations (5–40 w/v%) of ZnCl.-Ethanol solution at 80 °C for 2 h under magnetic stirring. The overall temperature range at which resin decomposition occurs was reduced by 87 °C and the temperature at which the maximum decomposition shows a 32 °C decrease. The simultaneous effect of swelling and catalytic action provided by the Ethanol-ZnCl. solution effectively reduces the decomposition temperature of epoxy resins in the CFRP.
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The Synergistic Effect of a Nickel Ion on the Corrosion Inhibition Efficiency of Purple Rice Bran Ex |
Abhradip Pal,Chandan Das |
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Purple rice bran extract (PRBE), an eco-friendly, inexpensive “green corrosion inhibitor,” was studied on boiler quality (BQ) steel in acidic solution (1 M HCl) to evaluate its ability of corrosion inhibition by various electrochemical techniques: potentiodynamic polarization test (PDP), electrochemical impedance spectroscopy (EIS). From the electrochemical tests, the enhanced inhibition efficiency of PRBE was found to be up to 83%. Combining the PRBE with metal ions (Ni.) enhanced the ability of corrosion inhibition in acidic media. The results of potentiodynamic polarization experiments inferred that PRBE is a mixed-type inhibitor. The findings of the EIS demonstrated that the suppression of corrosion is charge transfer controlled phenomenon.
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Performance of Granular Bentonite Under the Influence of Chemical and Mechanical Loadings |
Himanshu Yadav,Ajeet Sharma,T. V. Bharat |
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Landfill contains a liner system to arrest the movement of contaminants into the groundwater. Nowadays, geosynthetic clay liners (GCLs) are adapted as a liner due to its ease in workability and less air pollution during the operation. GCLs contain a 5–7 mm layer of granular bentonite in between two geotextiles. The initial hydraulic conductivity of GCLs is generally high due to the presence of granules. On hydration, the voids of granular bentonite seals and have very low hydraulic conductivity. The presence of salts in the leachate influences the hydraulic behaviour of granular bentonites. There are very few studies on the behaviour of air-dried granular bentonite under loading conditions for various salt environments. For the long-term application of granular bentonite as a liner, a complete analysis of hydro-mechanical behaviour under the influence of various salt environments is required to analyse under loading conditions. In this study, volume change and hydraulic behaviour of commercially available granular bentonite exhumed from GCL were investigated. Granular bentonite was compacted at natural compaction condition of GCL (i.e. 1.2 gm/cc). Three different commonly available
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Flow Hydrodynamics Influences Due to Flood Plain Sand Mining in a Meandering Channel |
O. P. Maurya,K. K. Nandi,S. Modalavalasa,S. Dutta |
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Flow hydrodynamics in the main channel due to floodplain sand mining is important for a better understanding of maintaining the natural habitat or the reliance between the flood plain and the main channel for the river‘s long-term survival and also facilitates more effective river restoration engineering. Day by day anthropogenic stresses are increasing in the river corridor system, indiscriminate sand mining is one of them. In this study, a computational fluid dynamics (CFD)-based software Flow-3D hydro (renormalized group K-ε turbulence model used) is used to study the flow hydrodynamics of sinuous (sinuosity index = 1.25) channel 18 m long, 1 m width, and 0.3 m height with floodplain sand mining pit. Sand mining additionally increases the secondary current near the outer bank of the channel, therefore leading to scouring or erosion at the outer bank, as a result, rivers migrate laterally. The turbulence kinetic energy (TKE) is concentrated in the mining pit and near the inner bank. This study result can be used to understand the flow hydrodynamic of the river system due to the series of sand mining.
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发表于 2025-3-21 18:08:18
