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  1. Book ; Online ; E-Book: Heavy metals

    Pathania, Deepak

    sources, toxicity and remediation techniques

    (Materials science and technologies)

    2016  

    Abstract: HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES -- HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES -- Library of Congress Cataloging-in-Publication Data -- CONTENTS -- PREFACE -- ACKNOWLEDGMENTS -- Chapter 1: MERCURY: SOURCES, ... ...

    Author's details Deepak Pathania, editor
    Series title Materials science and technologies
    Abstract HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES -- HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES -- Library of Congress Cataloging-in-Publication Data -- CONTENTS -- PREFACE -- ACKNOWLEDGMENTS -- Chapter 1: MERCURY: SOURCES, TOXICITY AND REMEDIATION -- ABSTRACT -- ABBREVIATIONS -- 1. INTRODUCTION -- 1.1. Mercury as a Global Contaminant -- 1.2. Physicochemical Properties of Mercury -- 2. SOURCES AND USES OF MERCURY -- 2.1. Mining Sources -- 2.2. Atmospheric Deposition -- 2.3. Urban Sources -- 2.4. Agricultural Sources -- 2.5. Erosion Sources

    2.6. Combustion and Industrial Sources -- 3. METALLOMICS OF MERCURY -- 3.1. Introduction to Metallomics -- 3.2. Exposure Pathways of Mercury -- 3.3. Tissue Distribution of Mercury -- 3.4. The Role of Thiols -- 3.5. Role of Selenium in the Metallomics of Mercury -- 3.5.1. Formation of MeHg-Se Compounds -- 3.5.2. Selenium-Aided Demethylation of MeHg -- 3.5.3. Formation of Inorganic Hg-Se Compounds -- 3.5.4. Redistribution of Inorganic Hg in the Presence of Se -- 3.5.5. Selenium Inhibition of Methyl Radicals from MeHg -- 3.5.6. Mercury-Induced Se Deficiency

    4. RECENT TECHNOLOGIES FOR ESTIMATION OF MERCURY -- 4.1. Handling of Samples -- 4.2. Extraction from Solid Samples -- 4.3. Estimation from Solid Samples -- 4.3.1. Determination of Hg in Coal -- 4.3.2. Extraction and Determination of Hg in Fish Tissues -- 4.3.3. Determination of Ultra-Trace Amount Methyl-, Phenyl- and Inorganic Mercury in Human Hair and Fish Tissue -- 4.4. Determination in Liquid Samples -- 4.4.1. Mercury Speciation by Cold Vapor AAS -- 4.4.2. Sensitive Mercury Speciation by Reversed-Phase Column High-PerformanceLiquid Chromatography with UV-Visible Detection for Sea Water
    Language English
    Size 1 Online-Ressource (322 Seiten)
    Publisher Nova Science Publishers, Inc
    Publishing place Hauppauge ; New York
    Publishing country United States
    Document type Book ; Online ; E-Book
    Note Description based upon print version of record ; Erscheinungsjahr in Vorlageform:[2016]
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT019220381
    ISBN 978-1-63484-766-7 ; 9781634847407 ; 1-63484-766-0 ; 1634847407
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book: Heavy metals

    Pathania, Deepak

    sources, toxicity and remediation techniques

    (Materials science and technologies)

    2016  

    Author's details Deepak Pathania, editor (associate professor & head, Department of Chemistry, Shoolini University, Solan, Himachal Pradesh, India)
    Series title Materials science and technologies
    Keywords Heavy metals/Environmental aspects.
    Language English
    Size ix, 310 pages :, illustrations, maps ;, 26 cm.
    Document type Book
    ISBN 9781634847407 ; 1634847407 ; 9781634847667 ; 1634847660
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Phytobial remediation advances and application of omics and artificial intelligence: a review.

    Mohan, Indica / Joshi, Babita / Pathania, Deepak / Dhar, Sunil / Bhau, Brijmohan Singh

    Environmental science and pollution research international

    2024  

    Abstract: Industrialization and urbanization increased the use of chemicals in agriculture, vehicular emissions, etc., and spoiled all environmental sectors. It causes various problems among living beings at multiple levels and concentrations. Phytoremediation and ...

    Abstract Industrialization and urbanization increased the use of chemicals in agriculture, vehicular emissions, etc., and spoiled all environmental sectors. It causes various problems among living beings at multiple levels and concentrations. Phytoremediation and microbial association are emerging as a potential method for removing heavy metals and other contaminants from soil. The treatment uses plant physiology and metabolism to remove or clean up various soil contaminants efficiently. In recent years, omics and artificial intelligence have been seen as powerful techniques for phytobial remediation. Recently, AI and modeling are used to analyze large data generated by omics technologies. Machine learning algorithms can be used to develop predictive models that can help guide the selection of the most appropriate plant and plant growth-promoting rhizobacteria combination that is most effective at remediation. In this review, emphasis is given to the phytoremediation techniques being explored worldwide in soil contamination.
    Language English
    Publishing date 2024-05-23
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-024-33690-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  4. Article: Bio-inspired fabrication of Cu–ZrO2 nanocomposites for the remediation of Cr(VI) from water system

    Pathania, Deepak / Srivastava, A.K. / Sharma, Arush

    Current research in green and sustainable chemistry. 2021, v. 4

    2021  

    Abstract: In laboratory scale experiment, Cu–ZrO₂ nanocomposite was synthesized using a leaf extract of Melia azedarach plant as a capping agent. The nanocomposite seems to be highly selective for the abolition of Cr(VI) from water system. The chemical ... ...

    Abstract In laboratory scale experiment, Cu–ZrO₂ nanocomposite was synthesized using a leaf extract of Melia azedarach plant as a capping agent. The nanocomposite seems to be highly selective for the abolition of Cr(VI) from water system. The chemical compositions and morphology of nanocomposite has been inspected using Fourier transform infrared spectrogram (FTIR), X-ray diffractometer (XRD), field emission scanning electron microscope (FESEM), high-resolution transmission electron microscope (HRTEM), thermo-gravimetric analysis (TGA) and electron dispersive X-ray (EDX). The adsorption mechanism ofCu-ZrO₂ nanocomposite was extremely dependent onsolutionpH. The maximum adsorption for Cr(VI) was found at 2.0 pH. Approximately, 95% of Cr(VI)has been adsorbed using Cu–ZrO₂ nanocomposite. The experimental data precisely follows Langmuir plot (R² equal to 0.99). This indicates the single layer adsorption of Cr(VI). Kinetics study indicates the chemical nature of adsorption. Thermodynamic study corresponds to feasible, spontaneous, and endothermic adsorption.
    Keywords Fourier transform infrared spectroscopy ; Melia azedarach ; X-ray diffraction ; adsorption ; endothermy ; energy-dispersive X-ray analysis ; green chemistry ; laboratory experimentation ; leaf extracts ; nanocomposites ; pH ; remediation ; research ; thermodynamics ; thermogravimetry ; transmission electron microscopes
    Language English
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2666-0865
    DOI 10.1016/j.crgsc.2021.100073
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  5. Article: Pollution indices and correlation of heavy metals contamination in the groundwater around brick kilns in Jammu and Kashmir, India.

    Mohan, Indica / Jasrotia, Rohit / Dhar, Sunil / Bhau, Brijmohan Singh / Pathania, Deepak / Khargotra, Rohit / Singh, Tej

    Heliyon

    2024  Volume 10, Issue 6, Page(s) e27869

    Abstract: The present investigation focuses on assessing the water quality of groundwater surrounding brick kilns in the Jammu district of Jammu and Kashmir (J&K). At 43 different brick kiln sites in both north and south regions of Jammu, concentrations of heavy ... ...

    Abstract The present investigation focuses on assessing the water quality of groundwater surrounding brick kilns in the Jammu district of Jammu and Kashmir (J&K). At 43 different brick kiln sites in both north and south regions of Jammu, concentrations of heavy metals were measured using established techniques. The elements zinc, copper, iron, lead, cadmium, nickel, and manganese were analyzed utilizing an Atomic Absorption Spectrophotometer (AAS). The pollution load index value was consistently below unity across all sites, suggesting an absence of pollution and making the water suitable for consumption. The average concentrations, listed in ascending order, were found to be 0.38 mg/L for copper, 0.31 mg/L for zinc, 0.01 mg/L for iron, and 0.09 mg/L for manganese. Notably, concentrations of lead, cadmium, and nickel were found below the detectable levels. Evaluation of contamination factors revealed the sequence Cu > Fe > Zn > Mn, while the geo accumulation index followed the sequence Cu > Fe > Mn > Zn. Comparison of these findings with the established standards of World Health Organization and Bureau of Indian Standards indicated that the recorded ranges were within permissible limits. The study's outcomes suggest that heavy metal emissions from brick kilns may not significantly impact the quality of groundwater. Elevated copper levels found near brick kilns were likely to result from plumbing materials in the study area. Iron and manganese in groundwater seems to have geo-genic origin and not emission-related. This research represents a foundational step in examining groundwater contamination by heavy metals specifically in the neighborhood of brick kilns in Jammu district. It contributes to the establishment of a comprehensive database and serves as a reference point for future studies. Additionally, the study recommends regular monitoring of groundwater to ensure the maintenance of drinking water quality.
    Language English
    Publishing date 2024-03-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e27869
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Spatio-temporal evaluation of surface water quality of Tawi watershed in the Himalayan region of Jammu (J&K, UT) using algal pollution indices: a geospatial approach.

    Kour, Gagandeep / Tyagi, Inderjeet / Dhar, Sunil / Kumari, Sarita / Pathania, Deepak / Kothari, Richa

    Environmental monitoring and assessment

    2023  Volume 195, Issue 12, Page(s) 1402

    Abstract: In the present work, an investigation was performed based on the genera and species stated in Palmer pollution index to show the extent of organic pollution in the surface water of the Tawi watershed in the Jammu province of the Union Territory of Jammu ... ...

    Abstract In the present work, an investigation was performed based on the genera and species stated in Palmer pollution index to show the extent of organic pollution in the surface water of the Tawi watershed in the Jammu province of the Union Territory of Jammu and Kashmir using algal pollution indices. Sampling was carried out for two seasons, pre-monsoon (PRM) and post-monsoon (POM), at 16 locations distributed over the entire Tawi watershed. The physico-chemical variables like water temperature, pH, electrical conductivity, TDS, total alkalinity, total hardness, DO, BOD, COD, nitrate, and phosphate were analyzed. The seasonal distribution of the pollution-tolerant algal genera and species was recorded and the algal pollution index for both genus (AGP index) and species (ASP index) was also calculated. The concentration of BOD, COD, and nitrate in the sampled river water was found to be higher during the PRM season as compared to the POM season. The lower stretch of the watershed (Jammu Sub-Watershed) falls in class IV-V as per the polluted river stretch priority ranking based on BOD levels as BOD levels are >3 mg/L in the downstream locations during both seasons. A total of 23 algal taxa belonging to 8 families, Chlorophyceae (4 algal genera), Cyanophyceae (2 algal genera), Bacillariophyceae (7 algal genera), Zygnematophyceae (3 algal genera), Trebouxiophyceae (2 algal genera), Ulvophyceae (1 algal genus), Mediophyceae (1 algal genus), and Euglenophyceae (3 algal genera), have been reported in the Tawi watershed. The results of the Palmer indices showed a lack of organic pollution in the upstream, varying pollution levels in the midstream, and partially high to very high organic pollution levels in the downstream of the watershed. Comparative temporal analysis of the distribution of pollution-tolerant algal genera and species showed more organic pollution during PRM. Navicula and Cymbella were found to be the most abundant genera in almost all the stations, whereas Ulothrix, Cocconeis, Anacystis, and Crucigenia were the least recorded genera in the entire watershed. The results will enhance the understanding of the health status of the watershed, and provide database for watershed vulnerability assessment for sustainability and watershed management with spatio-temporal improvement.
    MeSH term(s) Humans ; Water Quality ; Environmental Monitoring/methods ; Nitrates ; Rivers ; Fresh Water ; Diatoms ; Chlorophyta ; Organic Chemicals ; Seasons
    Chemical Substances Nitrates ; Organic Chemicals
    Language English
    Publishing date 2023-11-02
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/s10661-023-11975-3
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    In stock of ZB MED Bonn / Germany

    Z 5186: Show issues

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  7. Article ; Online: The development of carbohydrate polymer- and protein-based biomaterials and their role in environmental health and hygiene: A review.

    Thakur, Manita / Chandel, Manisha / Kumar, Ajay / Kumari, Sarita / Kumar, Pawan / Pathania, Deepak

    International journal of biological macromolecules

    2023  Volume 242, Issue Pt 2, Page(s) 124875

    Abstract: Biological macromolecules have been significantly used in the medicine due to their certain therapeutic values. Macromolecules have been employed in medical filed in order to enhance, support, and substitute damaged tissues or any other biological ... ...

    Abstract Biological macromolecules have been significantly used in the medicine due to their certain therapeutic values. Macromolecules have been employed in medical filed in order to enhance, support, and substitute damaged tissues or any other biological function. In the past decade, the biomaterial field has developed considerably because of vast innovations in regenerative medicine, tissue engineering, etc. Different types of biological macromolecules such as natural protein and polysaccharide etc. and synthetic molecules such as metal based, polymer based, and ceramic based etc. have been discussed. These materials can be modified by coatings, fibres, machine parts, films, foams, and fabrics for utilization in biomedical products and other environmental applications. At present, the biological macromolecules can used in different areas like medicine, biology, physics, chemistry, tissue engineering, and materials science. These materials have been used to promote the healing of human tissues, medical implants, bio-sensors and drug delivery, etc. These materials also considered as environmentally sustainable as they are prepared in association with renewable natural resources and living organisms in contrast to non-renewable resources (petrochemicals). In addition, enhanced compatibility, durability and circular economy of biological materials make them highly attractive and innovative for current research.The present review paper summarizes a brief about biological macromolecules, their classification, methods of synthesis, and their role in biomedicine, dyes and herbal products.
    MeSH term(s) Biocompatible Materials/chemical synthesis ; Biocompatible Materials/classification ; Proteins/chemistry ; Environmental Health ; Polysaccharides/chemistry ; Humans
    Chemical Substances Biocompatible Materials ; Proteins ; Polysaccharides
    Language English
    Publishing date 2023-05-15
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.124875
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  8. Article ; Online: Highly fluorescent composite of boron nitride quantum dots decorated on cellulose nanofibers for detection and removal of Hg(II) ions from waste water.

    Tewatia, Preeti / Kaushik, Vishwas / Jyoti, Manjot Singh / Pathania, Deepak / Singhal, Sonal / Kaushik, Anupama

    International journal of biological macromolecules

    2023  Volume 234, Page(s) 123728

    Abstract: To address the challenge of heavy-metal ions in wastewater, boron nitride quantum dots (BNQDs) were synthesized in-situ on rice straw derived cellulose nanofibers (CNFs) as substrate. The composite system exhibited strong hydrophilic-hydrophobic ... ...

    Abstract To address the challenge of heavy-metal ions in wastewater, boron nitride quantum dots (BNQDs) were synthesized in-situ on rice straw derived cellulose nanofibers (CNFs) as substrate. The composite system exhibited strong hydrophilic-hydrophobic interactions, as corroborated by FTIR, integrated the extraordinary fluorescence properties of BNQDs with fibrous-network of CNFs (BNQD@CNFs) yielding a surface of 35.147 m
    MeSH term(s) Cellulose/chemistry ; Wastewater ; Nanofibers/chemistry ; Quantum Dots/chemistry ; Mercury/analysis ; Ions ; Adsorption ; Water Pollutants, Chemical/chemistry ; Kinetics
    Chemical Substances Cellulose (9004-34-6) ; Wastewater ; boron nitride (2U4T60A6YD) ; Mercury (FXS1BY2PGL) ; Ions ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-02-19
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.123728
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  9. Article: Chlorophyll sensitized (BiO)2CO3/ CdWO4/rGO nano-hybrid assembly for solar assisted photo-degradation of chlorzoxazone

    Chandel, Manisha / Thakur, Manita / Sharma, Arush / Pathania, Deepak / Kumar, Ajay / Singh, Lakhveer

    Chemosphere. 2022 June 21,

    2022  

    Abstract: In the present laboratory scale experiment, we report the fabrication of chlorophyll sensitized (BiO)₂CO₃/CdWO₄/rGO (BCR) photo-catalyst. The green approach has been adopted for boosting the optical activity by chlorophyll as a sensitizer. The ... ...

    Abstract In the present laboratory scale experiment, we report the fabrication of chlorophyll sensitized (BiO)₂CO₃/CdWO₄/rGO (BCR) photo-catalyst. The green approach has been adopted for boosting the optical activity by chlorophyll as a sensitizer. The functionality, nature and surface compositions of synthesized photo-catalyst have been identified by FTIR, XRD and XPS instrumentation. The internal and surface morphology has been studied using FE-SEM and HR-TEM. The optical activity has been investigated by UV–vis and photoluminescence spectroscopy. The catalytic activity of chlorophyll sensitized BCR have been tested for the photo degradation of Chlorzoxazone (CZX) under simulated visible light for 90 min. The detailed comparison has been studied for the different loading amount of chlorophyll and RGO onto BCR photo-catalyst. The potential of BCR for the photo-degradation of CZX was investigated under various operational parameters such as catalysts dosage, pollutant concentration, effect of pH and ions etc. Approximately, 96.2% of CZX has been degraded over 90 min with the optimum catalyst amount 250 mgL⁻¹ at pH 7. The ●OH radical has been identified as major reactive species using radical scavenging experiment. The mineralization of CZX has been evaluated in terms of HR-MS and TOC-COD analysis.
    Keywords catalysts ; catalytic activity ; chlorophyll ; instrumentation ; laboratory experimentation ; mineralization ; optical properties ; pH ; photoluminescence ; photolysis ; pollutants
    Language English
    Dates of publication 2022-0621
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.135472
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  10. Article: Modelling studies for remediation of Cr (VI) from wastewater by activated Mangifera indica bark

    Pathania, Deepak / Sharma, Arush / Srivastava, A.K.

    Current research in green and sustainable chemistry. 2020 June, v. 3

    2020  

    Abstract: Activated bark prepared from Mangifera indica was used for the removal of Cr(VI) from aqueous solution. Activated bark (AB) was characterized by some instrumental techniques such as Fourier transform infrared spectroscopy (FTIR), scanning electron ... ...

    Abstract Activated bark prepared from Mangifera indica was used for the removal of Cr(VI) from aqueous solution. Activated bark (AB) was characterized by some instrumental techniques such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermal analysis (TGA). The effect of different adsorption parameters such as metal ion concentration, adsorbent dosage, contact time, pH, and the temperature was optimized. Langmuir, Freundlich, and Tempkin’s isotherms were studied for the interpretation of experimental data. Langmuir model was found to be best fitted with a maximum adsorption capacity of 78.96 ​mg/g. The kinetic study was described by pseudo-first-order kinetics and Elovich model. Kinetic study indicates that physio-adsorption play major role in Cr(VI) removal from water system. The thermodynamic parameters such as energy change (ΔG°), enthalpy change (ΔH°) and entropy change (ΔS°) were found to be spontaneous, feasible, and endothermic nature.
    Keywords Fourier transform infrared spectroscopy ; Mangifera indica ; adsorbents ; adsorption ; aqueous solutions ; bark ; endothermy ; energy ; enthalpy ; entropy ; green chemistry ; models ; pH ; remediation ; research ; sorption isotherms ; temperature ; wastewater
    Language English
    Dates of publication 2020-06
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2666-0865
    DOI 10.1016/j.crgsc.2020.100034
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