Eutrophication: Causes, consequences, physical, chemical and biological techniques for mitigation strategies

Environmental Challenges, Год журнала: 2023, Номер 12, С. 100733 - 100733

Опубликована: Май 17, 2023

Eutrophication is reckoned as an ecological challenge that exhibits adverse effects on the aquatic ecosystem well sustenance of portable water required by humans for their unremitting survival earth. There has been a range techniques prevention eutrophication, consequent need provision and protection bodies ecosystem. The employment chemical coagulants such lime, magnesium sulphate ferric reported to yield more than 95% removal nitrate phosphate. Moreover, adsorption studies revealed at optimum pH contact time 60 min, glutaraldehyde cross-linked chitosan exhibited highest capacity 139.4 mg/g, compared epichlorohydrin unmodified 108.24 44.38 mg/g respectively phosphate removal. use nano-filtration membrane coupled with bioreactor (NF-MBR) 62 days flux rate 16 l/m.h hydraulic retention 2.9 h posited display percentage 95, 90, 89, 87 68% COD, N-NH3, N-NO2, N-NO3- P-PO43− from wastewater. Lastly, biological wetland have be effective in combating eutrophication exhibiting efficiencies 86–98% (N-NH4), 99% (N-NO2), 82–99% (N-NO3−), 95–98% (total inorganic nitrogen), 71.2–31.9% (phosphate), 25–55% (COD) 47–86% (suspended solids). Nevertheless, success treatment slightly impeded loading rate.

Язык: Английский

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Straw-derived biochar for the removal of antibiotics from water: Adsorption and degradation mechanisms, recent advancements and challenges

Environmental Research, Год журнала: 2023, Номер 237, С. 116998 - 116998

Опубликована: Авг. 26, 2023

Язык: Английский

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Azithromycin decomposition from simple and complex waters by H2O2 activation over a recyclable catalyst of clay modified with nanofiltration process brine

Environmental Technology & Innovation, Год журнала: 2024, Номер 33, С. 103512 - 103512

Опубликована: Янв. 2, 2024

In the current research, brine of desalination units on Persian Gulf coast was used to improve catalytic properties clay. The catalyst degrade azithromycin through H2O2 activation. construction optimized by considering furnace retention time (60, 120, 180, 240 min), calcination temperature (200, 300, 400, 500 °C), and ratio brine-to- distilled water (100:0, 50:50, 25:75, 0:100%v/v). crystalline mesoporous had an area 11.52 m2/g. maximum decontamination (96.50%) achieved at pH 5.0, dose 5 g/L, hydrogen peroxide quantity 2%v/v, contact 60 min. Azithromycin decomposition kinetics using system followed first-order model (R² >0.96). Based study scavengers, hydroxyl radicals played a vital role in process. good stability seventh cycle reuse, it efficiency 54%. Phosphate anion aluminum cation more interference effects removal. removal presence humic acid fulvic decreased reached 80.25 83.59%, respectively. from environments like water, municipal tap sewage, urine tested, lowest sewage. this work could be effectively applied for activation and, eventually, antibiotic degradation many mediums.

Язык: Английский

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Biochar as green adsorbents for pharmaceutical pollution in aquatic environments: A review

Desalination, Год журнала: 2024, Номер 583, С. 117725 - 117725

Опубликована: Май 10, 2024

Язык: Английский

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Adsorptive removal of paracetamol from aqueous media: A review of adsorbent materials, adsorption mechanisms, advancements, and future perspectives

Journal of Molecular Liquids, Год журнала: 2024, Номер 396, С. 123976 - 123976

Опубликована: Янв. 10, 2024

Язык: Английский

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Biochar-Based Strategies for Antibiotics Removal: Mechanisms, Factors, and Application

ACS ES&T Engineering, Год журнала: 2024, Номер 4(6), С. 1256 - 1274

Опубликована: Апрель 22, 2024

The increasing use of antibiotics induces the spread antibiotic-resistant genes (ARGs) in environment, which seriously threatens natural ecosystem and human health. Reducing environment is utmost importance. Biochar, as a cost-effective, environmentally friendly, carbon-rich porous material with circular economy prospects, has shown great potential antibiotic remediation environment. adsorption mechanisms (e.g., electrostatic interaction, hydrogen bonding hydrophobic π–π electron donor–acceptor (EDA) pore diffusion) biotic roles biochar microbial shelter, carrier, mediator) synergistically promote removal from aqueous phase. This review critically discusses various based on classes antibiotics, efficacy removal, influence crucial parameters antibiotics. Furthermore, provides critical discussion engineering application biochar. Finally, highlights prospects challenges treating antibiotic-contaminated liquid streams.

Язык: Английский

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Harnessing nitrogen doped magnetic biochar for efficient antibiotic adsorption and degradation

Journal of Industrial and Engineering Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Covalent integration of Fe-based metal–organic framework and triazine-containing covalent organic framework for enhanced adsorptive removal of antibiotics

Journal of Cleaner Production, Год журнала: 2023, Номер 434, С. 140259 - 140259

Опубликована: Дек. 16, 2023

Язык: Английский

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Remediation of Heavy Metals Using Biomass-Based Adsorbents: Adsorption Kinetics and Isotherm Models

Clean Technologies, Год журнала: 2023, Номер 5(3), С. 934 - 960

Опубликована: Июль 28, 2023

This study aims to comprehensively investigate the current advances in water treatment technologies for elimination of heavy metals using biomass-based adsorbents. The enhancement adsorption capacity biomass materials is achieved through surface modification, which increases their porosity and area. therefore focuses on impact different modification techniques capacity, as well evaluation adsorptive removal analysis various isotherm kinetics models applied metal contaminants. utilization kinetic sorption crucial it provides a theoretical background understand predict efficiency adsorbent materials. In contrast previous studies, this research examines wide range materials, providing comprehensive understanding efficacy removing from wastewater. also delves into foundations models, highlighting strengths, limitations, effectiveness describing performance Moreover, sheds light regenerability adsorbents potential engineering applications. Valuable insights state-of-the-art methods wastewater cleanup resources required future developments were discussed.

Язык: Английский

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Sustainable high-efficiency removal of cationic and anionic dyes using new super adsorbent biochar: performance, isotherm, kinetic and thermodynamic evaluation

Environmental Science Water Research & Technology, Год журнала: 2023, Номер 9(10), С. 2643 - 2663

Опубликована: Янв. 1, 2023

A green, environment-friendly, inexpensive non-modified biochar was employed for removal of unparalleled pH sensitive cationic and anionic dyes from wastewater.

Язык: Английский

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