Biological and green remediation of heavy metal contaminated water and soils: A state-of-the-art review

Chemosphere, Journal Year: 2023, Volume and Issue: 332, P. 138861 - 138861

Published: May 5, 2023

Language: Английский

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Characterization of microplastic pollution in the Pasur river of the Sundarbans ecosystem (Bangladesh) with emphasis on water, sediments, and fish

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 868, P. 161704 - 161704

Published: Jan. 19, 2023

Language: Английский

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Exploring the impact of heavy metals toxicity in the aquatic ecosystem

International Journal of Energy and Water Resources, Journal Year: 2024, Volume and Issue: unknown

Published: April 12, 2024

Language: Английский

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The State of the Art and Emerging Trends in the Wastewater Treatment in Developing Nations

Water, Journal Year: 2022, Volume and Issue: 14(16), P. 2537 - 2537

Published: Aug. 18, 2022

Water is the founding fundamental of life and hence a basic need life. However, due to ever-rising population, industrialization has emerged as global issue. This problem notably escalated in developing countries. Their citizens face problems such floods, drought, poor water quality. Due quality sanitation problems, most health issues are caused by water-borne infections. In countries, untreated wastewater released into bodies or ground, thereby polluting natural resources. lack sufficient infrastructure, planning, funding, technologies overcome these problems. Additionally, urbanization megacities countries highly accelerated, but it disproportionate required resources for treating wastewater. this biological oxygen demand (BOD): chemical (COD) ratio increasing exponentially compared developed ones. Spreading awareness, education supporting relevant research, making stringent rules industries can alone solve

Language: Английский

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Biological roles of soil microbial consortium on promoting safe crop production in heavy metal(loid) contaminated soil: A systematic review

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 168994 - 168994

Published: Dec. 2, 2023

Language: Английский

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Tracing and source fingerprinting of metals from the southern coastal sediments in Bangladesh

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(19), P. 27846 - 27863

Published: March 23, 2024

Language: Английский

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Progress and prospects for remediation of soil potentially toxic elements pollution: A state-of-the-art review

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 35, P. 103703 - 103703

Published: June 7, 2024

Rapid economic development has led to an alarming increase in soil pollution by potentially toxic elements (PTEs), significantly reducing productivity and posing long-term threats sustainable agriculture human well-being. Over the past two decades, it been observed that PTEs severely impacted biodiversity, with damage rates of 94.7 % plants, 77.4 humans, 68.4 animals. In response, various remediation technologies have developed, considering factors such as practical applicability, treatment duration, ecological safety. Microbial shown a removal efficiency ranging from 32.0 95.2 %, while multi-technology combined approaches demonstrated broader efficacy, 18.7 381 %. However, selection suitable technology must also consider cost ensure efficient contaminant removal. This review provides comprehensive overview local international status, sources, hazards associated PTEs, well environmental influencing their migration. It examines detoxification mechanisms plants microbial evaluates strengths weaknesses physical, chemical, biological, methods. Furthermore, underscores requirements opportunities for developing effective techniques. The insights presented here are crucial agronomists strategies interdisciplinary research into integrated emission sources pathogenesis, thereby enhancing efforts safeguard Earth's environment.

Language: Английский

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Biogenic synthesis of iron oxide nanoparticles and experimental modeling studies on the removal of heavy metals from wastewater

Journal of Saudi Chemical Society, Journal Year: 2023, Volume and Issue: 28(1), P. 101777 - 101777

Published: Dec. 7, 2023

Water pollution is a major global challenge due to the fast expansion of industrial activities and increasing human population. Certain heavy metals can be exceedingly hazardous contribute significantly water contamination. In this study, iron oxide nanoparticles (IONPs) were synthesized using cyanobacteria extract remove (Cd Pb) from wastewater. To characterize IONPs, several analytical techniques employed such as Ultraviolet-visible spectroscopy revealed an SPR (surface plasmon resonance) peak at 348 nm, FTIR (Fourier transform infrared) spectral analysis show OH, C-H S=O functional groups which confirmed biomolecules responsible for biogenic synthesis stability. The surface morphology IONPs was investigated (SEM) scanning electron reveled their nearly spherical or cubic shape. Additionally, XRD (X-ray diffraction) crystallinity with crystalline size measuring 18.21 nm. Effects contact time, pH, initial metal ions concentrations, dosage studied on adsorption Cd Pb ions. Different kinetics isotherm models applied experimental data. Pseudo second-order kinetic Langmuir well fitted onto IONPs. Higher correlation coefficients (R2) values (R2: 0.990 adsorption) 0.998 0.999 adsorption, respectively) found, indicated favorable interaction between adsorbent. calculated maximal capacities 105.932 118.764 mg/g Pb, respectively. Recyclability conducted after five adsorption/desorption cycles, retained efficiency negligible decline. After removal up 80.41 88.35 % Results study indicate that cyanobacteria-mediated efficient adsorbent contaminated aqueous solution.

Language: Английский

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Development of a fabricated first-flush rainwater harvested technology to meet up the freshwater scarcity in a South Asian megacity, Dhaka, Bangladesh

Heliyon, Journal Year: 2023, Volume and Issue: 9(1), P. e13027 - e13027

Published: Jan. 1, 2023

The scarcity of freshwater in most the megacities world is an important concern. In this regard, scientifically harvested rainwater could provide effective measure to crisis. attempt, we developed a cost-effective sensor-based automated first-flush harvesting system (RHS) improve and economic development like Dhaka, Bangladesh. To investigate performance system, suit representative samples was systematically collected, preserved, assessed between months July-December 2021 for water quality parameters such as physicochemical (pH, EC, TDS, DO, hardness, alkalinity), anions (F-, Cl-, NO2-, NO3-, Br-, SO42-), elemental (Ca, Mg, Cr, As, Cd, Hg, Pb, Be, Ni, Se, Fe), microbial contamination analysis. A Multiparameter digital meter titrimetric method were employed measuring properties whereas concentration detected using inductively coupled plasma-mass spectrometer atomic absorption spectrometer. changes preserved investigated from time during whole experimental period. findings showed that mean pH (6.90) concentrations (mg/L) other concerning TDS (15.5), DO (7.26), hardness (14.9), Cl- (3.59), NO3- (4.84), SO42- (4.62), Fe (<0.2), Cr (0.086 μg/L), As (0.224 Cd (0.260 Hg (0.270 Pb (5.530 μg/L) below WHO drinking guidelines literature data implying derived RHS completely safe uses even respect (total bacterial counts: 0-15 CFU/mL, total fecal coliform less than 1.8 MPN/100 mL) long storage. Hence, technology has huge opportunity mitigate groundwater depletion issues, especially

Language: Английский

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Deciphering the source of heavy metals in industrially affected river sediment of Shitalakshya river, Bangladesh, and potential ecological and health implications

Journal of Hazardous Materials Advances, Journal Year: 2023, Volume and Issue: 10, P. 100268 - 100268

Published: Feb. 27, 2023

Heavy metals (HMs) in sediment samples (Dry and Rainy seasons) of industrially affected rivers were quantified by Energy Disperse X-ray Fluorescence the Shitalakshya river Bangladesh. This study assesses potential health concerns provided various HMs manganese (Mn), zinc (Zn), copper (Cu), arsenic (As), lead (Pb), cadmium (Cd), nickel (Ni), chromium (Cr). Mean concentration ranked as Mn > Zn Cu Cr Ni Pb As Cd for both seasons, where almost all elements found within standard limit, except As. In dry season, concentrations slightly higher than rainy which can be attributed to fact that pollutants may diluted rainwater, thus lowering value. Enrichment factor, geo-accumulation index, contamination pollution load index indicated a high level moderate levels ecological risk. The hazard was < 1 adults children revealing no possible non-carcinogenic Hazard Quotient individual exposure path ingestion dermal inhalation regardless age group. Carcinogenic risk via entire three ascertained safe seasons. However, total carcinogenic value low medium while it is limit adults. Multivariate statistical analysis sources anthropogenic primarily due untreated wastes discharge from metal waste dumping sites, oil refinery industries, glass ceramic industries close sampling sites river.

Language: Английский

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