Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review

RSC Advances, Год журнала: 2023, Номер 13(26), С. 17595 - 17610

Опубликована: Янв. 1, 2023

Heavy metal contamination of water sources has emerged as a major global environmental concern, threatening both aquatic ecosystems and human health. pollution in the environment is on rise due to industrialization, climate change, urbanization. Sources include mining waste, landfill leachates, municipal industrial wastewater, urban runoff, natural phenomena such volcanic eruptions, weathering, rock abrasion. ions are toxic, potentially carcinogenic, can bioaccumulate biological systems. metals cause harm various organs, including neurological system, liver, lungs, kidneys, stomach, skin, reproductive systems, even at low exposure levels. Efforts find efficient methods remove heavy from wastewater have increased recent years. Although some approaches effectively contaminants, their high preparation usage costs may limit practical applications. Many review articles been published toxicity treatment for removing wastewater. This focuses main pollution, chemical transformation, toxicological impacts environment, harmful effects ecosystem. It also examines advances cost-effective techniques physicochemical adsorption using biochar zeolite ion exchangers, well decomposition complexes through advanced oxidation processes (AOPs). Finally, advantages, applications, future potential these discussed, along with any challenges limitations that must be considered.

Язык: Английский

---

Advancements in adsorption and photodegradation technologies for Rhodamine B dye wastewater treatment: fundamentals, applications, and future directions

Green Chemical Engineering, Год журнала: 2023, Номер 5(4), С. 440 - 460

Опубликована: Дек. 30, 2023

Organic dye pollutants present in wastewater pose a significant global challenge. Among pollutants, the synthetic Rhodamine B (RB) stands out due to its non-biodegradable nature and associated neurotoxic, carcinogenic, respiratory irritant properties. Extensive research has been conducted on efficacy of adsorption photodegradation techniques for removal RB from wastewater. While advanced oxidation processes (AOPs) have gained considerable attention their effectiveness recent years, underlying behaviors mechanisms these technologies remain incompletely understood. Therefore, comprehensive summary progress this domain is imperative clarify basics up-to-date achievements. This review provides an in-depth exploration fundamentals, advancements, future trajectories treatment technologies, mainly encompassing photodegradation. work starts with general introduction outlining sources, toxicity, diverse applicable strategies. Subsequently, it thoroughly examines crucial within non-photochemical, photochemical, such as UV light-assisted AOP, catalyst-assisted ozonation, Fenton systems, electrochemical technology. The primary objective furnish broad overview techniques, elucidating effectiveness, limitations, applicability. Following this, encapsulates state-of-the-art computational simulations pertaining interactions clays other adsorbents. Lastly, delves into column dye, elucidates various influencing factors, including bed height, feed concentration, pollutant feeding or flow rate, regeneration. panoramic aims provide valuable insights suitable gaps, applicability containing dye.

Язык: Английский

---

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

---

Fe-MOFs/CuS nanocomposite-mediated peroxymonosulfate activation for tetracycline degradation: Boosted dual redox cycles

Journal of Cleaner Production, Год журнала: 2024, Номер 442, С. 140885 - 140885

Опубликована: Фев. 1, 2024

Язык: Английский

---

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Royal Society Open Science, Год журнала: 2024, Номер 11(5)

Опубликована: Май 1, 2024

Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods remove dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, demonstrate high efficiency in dye removal. Biochar, charcoal-like material derived biomass pyrolysis, offers advantages such as low cost, eco-friendliness, reusability. Beyond its role sustainable soil remediation, proves effective removing wastewater after undergoing physical or chemical modification. Acid–base activation metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common for production modification, impacts raw materials, pyrolysis temperature, heating rate residence time. It further elucidates mechanism removal assessing factors influencing efficiency, including feedstock, pH, particle size, initial concentration, dosage reaction explores challenges, opportunities, reusability regeneration treating also discusses recent advances using adsorption-based biochar. The ultimately advocates enhancing performance through post-modification.

Язык: Английский

---

Removal of toxic heavy metals from aquatic systems using low-cost and sustainable biochar: A review

Desalination and Water Treatment, Год журнала: 2024, Номер 320, С. 100757 - 100757

Опубликована: Сен. 7, 2024

Язык: Английский

---

Comparative Study on the Impact of Physicochemical Characteristics of the Activated Carbons Derived from Biochar/Hydrochar on the Adsorption Performances

Environmental Research, Год журнала: 2025, Номер unknown, С. 121022 - 121022

Опубликована: Фев. 1, 2025

Язык: Английский

---

Efficient degradation of tetracycline over vacancy-modified Cu-doped Bi2O2S via peroxymonosulfate activation and photocatalysis

Journal of Cleaner Production, Год журнала: 2023, Номер 400, С. 136631 - 136631

Опубликована: Фев. 27, 2023

Язык: Английский

---

Recent progress in the production and application of biochar and its composite in environmental biodegradation

Bioresource Technology, Год журнала: 2023, Номер 387, С. 129592 - 129592

Опубликована: Авг. 6, 2023

Язык: Английский

---

Recent advances in water falling film reactor designs for the removal of organic pollutants by advanced oxidation processes: A review

Water Resources and Industry, Год журнала: 2023, Номер 30, С. 100227 - 100227

Опубликована: Сен. 26, 2023

Chemical wastewater from industrial and urban activities is a major environmental concern. Advanced oxidation processes (AOPs) have emerged as efficient techniques for the removal of persistent organic pollutants wastewater. AOPs generate highly reactive hydroxyl radicals (•OH) that effectively degrade mineralize wide range contaminants in aqueous solutions. Research ongoing to find simple reactor designs AOPs. Water falling film (WFF) been utilized various This review provides an overview development application WFF degradation by work summarizes recent studies on treating pollutants, highlights current challenges applying reactors water treatment using AOPs, proposes future research directions. The aims guide researchers stimulate further investigations into practical applications treatment.

Язык: Английский

---