Negative and positive environmental perspective of COVID-19: air, water, wastewater, forest, and noise quality

Mohapatra, Ranjan K.; Das, Pradeep; Sharun, Khan; Tiwari, Ruchi; Mohapatara, Saumya Ranjan; Mohapatra, Pranab K.; Behera, Ajit; Acharyya, Tamoghna; Kandi, Venkataramana; Zahan, Kudrat-E; Natesan, Senthilkumar; Bilal, Muhammad; Dhama, Kuldeep

doi:10.1080/2314808x.2021.1973182

Cited by 4 publications

(3 citation statements)

References 112 publications

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“…The iron and steel industries have grown exponentially worldwide due to huge amount of constructional activities. To meet the demand of iron ore, it is normally transported by rail and by road (truck and lorry) which causes serious environmental pollutions for particulate matters [1,2]. Transporting the iron ore by rail is cost effective as compared to road transportation.…”

Section: Introductionmentioning

confidence: 99%

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Narayan Das,

K. Biswal,

Behera

et al. 2024

Bull. Chem. Soc. Eth.

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The pipeline transportation of iron ore slurry (IOS) is an eco-friendly alternate mode to transport the raw materials to longer distance and reduce the transportation network congestion problems. Proper selection of surfactant could modify mineral’s viscosity, dispersion and wetting characteristics effectively as may be desired, which may further be monitored. A surfactant alters surface characteristics after being adsorbed onto minerals by altering the interfacial behaviour. This work is first report of the influence of a biosurfactant sourced from Aloe barbadensis Miller on the rheological behaviour of a high-grade iron ore (IO) sample at 45–72% by mass slurry concentrations range. The observed rheological parameters confirmed the non-Newtonian flow behaviour of the slurry. The collected IO and dried IOS samples were subjected to UV-Vis, XRF, PSD, XRD, SEM and EDS analyses. Experimental rheological data at varying concentrations was tested on various models to ascertain the best-fit rheological model for IOS transport. The Bingham model was found to be the most suitable to model the rheology of IOS. Experimental rheological behaviour of IOS was found to be linear with the yield stress. The study shall help to ascertain the suitability of a biosurfactant to stabilise high grade iron ores for pipeline transportation. KEY WORDS: Iron ore slurry, Aloe barbadensis, Rheological measurements, Rheological modelling Bull. Chem. Soc. Ethiop. 2024, 38(3), 615-629. DOI: https://dx.doi.org/10.4314/bcse.v38i3.6

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Section: Introductionmentioning

confidence: 99%

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Narayan Das,

K. Biswal,

Behera

et al. 2024

Bull. Chem. Soc. Eth.

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“…As the steel industries are growing exponentially worldwide, and to meet the demand the iron ore is normally transported by rail and by road (truck and lorry). Such transportation system causes serious environmental pollutions due to particulate matters [1][2][3]. The rail and road transport has several impacts on the environment and ecosystem like air pollution, climate change, and noise pollution and further associated with health risks [1].…”

Section: Introductionmentioning

confidence: 99%

Analysing the role of a bio-surfactant extracted from Colocasia esculenta (L.) Schott on the stabilization of high concentrated iron ore slurry for transportation

Das,

Biswal,

Mohapatra

2023

Bull. Chem. Soc. Eth.

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ABSTRACT. The transportation of minerals/ores in form of slurry through pipelines is an alternative, effective and also eco-friendly mode of transportation. Surfactants extracted from the plant sources are gaining high interest for the formulation and stabilization of high concentrated solid-water slurries. In this work, the role of a novel bio-surfactant extracted from Colocasia esculenta (L.) Schott on the stabilisation of iron ore slurry (IOS) was studied and reported first time. The collected iron ore powder (IOP) and dried IOS samples were analysed with the help of XRF, XRD, SEM and EDS analysis. The results confirmed that the surfactant molecules (present in aqueous Colocasia esculenta (L.) Schott) coated well on iron surface and forms an effective barrier between the iron ore (IO) particles. The studied rheological parameters for the slurry indicated non-Newtonian flow behaviour. KEY WORDS: Iron ore slurry, Colocasia esculenta (L.) Schott, XRD, SEM, rheological measurements Bull. Chem. Soc. Ethiop. 2023, 37(6), 1459-1470. DOI: https://dx.doi.org/10.4314/bcse.v37i6.13

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“…As reported, the causative virus (SARS‐CoV‐2) emergence from bats and pangolins. After its possible emergence on December 31, 2019, the disease is with us since last two years and putting the healthcare establishments under tremendous pressure (Mohapatra et al, 2021c ; Pal et al, 2022 ). The virus and its variants normally affect the respiratory system with common symptoms breathing difficulties, cough, fatigue, and fever.…”

Section: Introductionmentioning

confidence: 99%

SARS‐CoV‐2 and its variants of concern including Omicron: A never ending pandemic

Mohapatra¹,

Kuppili

Suvvari

et al. 2022

Chem Biol Drug Des

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The ongoing COVID‐19 pandemic caused by SARS‐CoV‐2 is associated with high morbidity and mortality. This zoonotic virus has emerged in Wuhan of China in December 2019 from bats and pangolins probably and continuing the human‐to‐human transmission globally since last two years. As there is no efficient approved treatment, a number of vaccines were developed at an unprecedented speed to counter the pandemic. Moreover, vaccine hesitancy is observed that may be another possible reason for this never ending pandemic. In the meantime, several variants and mutations were identified and causing multiple waves globally. Now the safety and efficacy of these vaccines are debatable and recommended to determine whether vaccines are able to interrupt transmission of SARS‐CoV‐2 variant of concern (VOC). Moreover, the VOCs continue to emerge that appear more transmissible and less sensitive to virus‐specific immune responses. In this overview, we have highlighted various drugs and vaccines used to counter this pandemic along with their reported side effects. Moreover, the preliminary data for the novel VOC “Omicron” are discussed with the existing animal models.

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Negative and positive environmental perspective of COVID-19: air, water, wastewater, forest, and noise quality

Cited by 4 publications

References 112 publications

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Analysing the role of a bio-surfactant extracted from Colocasia esculenta (L.) Schott on the stabilization of high concentrated iron ore slurry for transportation

SARS‐CoV‐2 and its variants of concern including Omicron: A never ending pandemic

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