Influence of biochar on the removal of Microcystin-LR and Saxitoxin from aqueous solutions DOI Creative Commons
Cadianne Chambers,

Savannah Grimes,

Spencer E. Fire

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 14, 2024

The present study assessed the effective use of biochar for adsorption two potent HAB toxins namely, Microcystin-LR (MCLR) and Saxitoxin (STX) through a combination dosage, kinetic, equilibrium, initial pH, competitive experiments. results suggest that has excellent capabilities removing MCLR STX, with STX reporting higher capacities (622.53-3507.46 µg/g). removal required minimal dosage 0.02 g/L, while needed 0.4 g/L > 90%. Similarly, shorter contact time was compared to 90% toxin removed from water. Initial pH revealed acidic conditions favored uptake basic conditions. Kinetic studies Elovich model be most suitable both toxins, also showed fittings Pseudo-First Order Pseudo-Second in individual systems. suited kinetic presence each other. Isotherm confirmed Langmuir-Freundlich as best fit toxins. These mechanisms including pore filling, hydrogen bonding, π-π interactions, hydrophobic electrostatic attraction, dispersive interactions.

Language: Английский

Microplastics – An emerging contaminants for algae. Critical review and perspectives DOI
Magdalena Podbielska, Ewa Szpyrka

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 885, P. 163842 - 163842

Published: May 2, 2023

Language: Английский

Citations

47
A review of important heavy metals toxicity with special emphasis on nephrotoxicity and its management in cattle DOI Creative Commons

Ifrah Tahir,

Khalid A. Alkheraije

Frontiers in Veterinary Science, Journal Year: 2023, Volume and Issue: 10

Published: March 29, 2023

Toxicity with heavy metals has proven to be a significant hazard several health problems linked it. Heavy bioaccumulate in living organisms, pollute the food chain, and possibly threaten of animals. Many industries, fertilizers, traffic, automobile, paint, groundwater, animal feed are sources contamination metals. Few metals, such as aluminum (Al), may eliminated by elimination processes, but other like lead (Pb), arsenic (As), cadmium (Ca) accumulate body leading chronic toxicity Even if these have no biological purpose, their toxic effects still present some form that is damaging its appropriate functioning. Cadmium (Cd) Pb negative impacts on number physiological biochemical processes when exposed sub-lethal doses. The nephrotoxic Pb, As, Cd well known, high amounts naturally occurring environmental occupational populations exposures an adverse relationship between kidney damage metal exposure. Metal determined absorbed dosage, route exposure, duration whether acute or chronic. This can numerous disorders also result excessive due oxidative stress generated free radical production. concentration decreased through various procedures including bioremediation, pyrolysis, phytoremediation, rhizofiltration, biochar, thermal process. review discusses few mechanisms, cattle special emphasis kidneys.

Language: Английский

Citations

39
CRISPR/Cas9-Mediated genetically edited ornamental and aromatic plants: A promising technology in phytoremediation of heavy metals DOI
Shahnoush Nayeri,

Zahra Dehghanian,

Behnam Asgari Lajayer

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 428, P. 139512 - 139512

Published: Oct. 27, 2023

Language: Английский

Citations

31
Advances in investigating microcystin-induced liver toxicity and underlying mechanisms DOI
Tong Li,

Xinting Fan,

M.-L. Cai

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 167167 - 167167

Published: Sept. 18, 2023

Language: Английский

Citations

28
Applications, advancements, and challenges of cyanobacteria-based biofertilizers for sustainable agro and ecosystems in arid climates DOI Creative Commons

Shazia Bibi,

Imen Saadaoui, Amina Bibi

et al.

Bioresource Technology Reports, Journal Year: 2024, Volume and Issue: 25, P. 101789 - 101789

Published: Feb. 1, 2024

Based on the increasing world population, food demands have tremendously increased. Chemical-based conventional agricultural practices will be required to fulfill demands, which damage soil and create other environmental concerns. Cyanobacteria are one of sustainable solutions overcome struggles. With potential grow in extreme conditions, cyanobacteria can boost arid regions by overcoming challenges such as water scarcity, elevated temperatures, salinity, infertile soil. produce secondary metabolites that improve status bioavailability nutrients defend plants against biotic abiotic stress. They first ones colonize form biological crust (BSC), thereby involved ecological succession. There exists a knowledge gap related climatic changes their impact terrestrial much attention is diverted towards non-terrestrial species. Covering this beneficial for future based biofertilizer (CBF).

Language: Английский

Citations

13
Field-scale artificial floating islands reduces cyanotoxin from residential raw sewage treatment basin DOI Creative Commons
Zhaozhe Chen, Jiyoung Lee, Molly Mills

et al.

Ecological Engineering, Journal Year: 2025, Volume and Issue: 212, P. 107543 - 107543

Published: Feb. 1, 2025

Language: Английский

Citations

1
Meta-analysis reveals cyanotoxins risk across African inland waters DOI Creative Commons
Xu Zhao, Ying Liu, Yuming Guo

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 451, P. 131160 - 131160

Published: March 5, 2023

Global eutrophication and climate warming exacerbate production of cyanotoxins such as microcystins (MCs), presenting risks to human animal health. Africa is a continent suffering from severe environmental crises, including MC intoxication, but with very limited understanding the occurrence extent MCs. By analysing 90 publications 1989 2019, we found that in various water bodies where MCs have been detected so far, concentrations were 1.4-2803 times higher than WHO provisional guideline for lifetime exposure via drinking (1 µg/L) 12 15 African countries data available. relatively high Republic South (averaged 2803 μg/L) Southern whole (702 when compared other regions. Values reservoirs (958 lakes (159 types, much temperate (1381 arid (161 tropical (4 zones. Highly significant positive relationships between planktonic chlorophyll a. Further assessment revealed ecological risk 14 56 bodies, half used sources. Recognizing extremely Africa, recommend routine monitoring be prioritized ensure safe use sustainability this region.

Language: Английский

Citations

22
Aging process does not necessarily enhance the toxicity of polystyrene microplastics to Microcystis aeruginosa DOI
Di Wu, Lin Deng, Ting Wang

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 882, P. 163608 - 163608

Published: April 20, 2023

Language: Английский

Citations

19
Microcystin concentrations and congener composition in relation to environmental variables across 440 north-temperate and boreal lakes DOI Creative Commons
Paul W. MacKeigan, Arthur Zastepa, Zofia E. Taranu

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 884, P. 163811 - 163811

Published: April 29, 2023

Understanding the environmental conditions and taxa that promote occurrence of cyanobacterial toxins is imperative for effective management lake ecosystems. Herein, we modeled total microcystin presence concentrations with a broad suite predictors cyanobacteria community data collected across 440 Canadian lakes using standardized methods. We also conducted focused analysis targeting 14 congeners 190 lakes, to examine how abiotic biotic factors influence their relative proportions. Microcystins were detected in 30 % highest occurring most eutrophic located ecozones central Canada. The two commonly MC-LR (61 lakes) MC-LA (37 lakes), while 11 others more sporadically waterbodies. Congener diversity peaked Canada where biomass was highest. Using zero-altered hurdle model, probability detecting best explained by increasing Microcystis biomass, Daphnia cyclopoid soluble reactive phosphorus, pH wind. Microcystin increased other less dominant taxa, as well copepod dissolved inorganic carbon water temperature. Collectively, these models accounted 34 70 variability, respectively. Based on multiple factor congeners, data, zooplankton found abundance varied according trophic state related combination genera biomasses variables.

Language: Английский

Citations

17
Eutrophication of Inland Surface Waters in South Africa: An Overview DOI Creative Commons
Thabile Lukhele, Titus A.M. Msagati

International Journal of Environmental Research, Journal Year: 2024, Volume and Issue: 18(2)

Published: March 7, 2024

Abstract Eutrophication of fresh waterbodies is a global phenomenon that exacerbated by increases in agricultural activities, industrialization, and urbanization, all driven the increase human population. This paper reviews state inland South Africa, identifying major drivers eutrophication discussing how different sectors economy are negatively impacted eutrophication. Data indicate up to 76% water impoundments approximately 70% river systems eutrophic hypereutrophic experience protracted periods cyanobacterial blooms, particularly summer months. Negative impacts on sector, potable supply tourism well documented becoming more explicit. Evidently, nutrient loading patterns into bodies have changed become complex. Although wastewater treatment plants remain contributors loads most waterbodies, non-point sources including runoff, untreated sewage from leaking overflowing sewer systems, as runoff informal settlements, also make substantial contributions. As result, strategies employed prevent eutrophication, within-waterbody remediation programs fallen short reducing trophic status thus ameliorating symptoms Tailor-made, integrated management initiatives target point source, internal are, therefore, required.

Language: Английский

Citations

7