A critical review on the formation, fate and degradation of the persistent organic pollutant hexachlorocyclohexane in water systems and waste streams

Adithya, Srikanth; Jayaraman, Ramesh Sai; Krishnan, Abhishek; Malolan, Rajagopal; Gopinath, Kannappan Panchamoorthy; Arun, Jayaseelan; Kim, Woong; Govarthanan, Muthusamy

doi:10.1016/j.chemosphere.2021.129866

Cited by 71 publications

(14 citation statements)

References 208 publications

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“…Chlorinated TCS derivatives and dioxins such as 2,8-dichlorodibenzo-P-dioxin (2,8-DCDD), 2,4-dichlorophenol and 2,4,6-trichlorophenol are more toxic than the parent TCS (Aranami and Readman 2007 ; Olaniyan et al 2016 ; Reiss et al 2002 ). These compounds are associated with serious effects such as genotoxicity, mutagenicity and carcinogenicity (Adithya et al 2021 ). It is worth noting that chlorination triggers the endocrine disruption and results in 30-fold higher TCS anti-estrogenic activity (Li 2021 ).…”

Section: Occurrence Of Tcs In Different Environmental Matricesmentioning

confidence: 99%

Comprehensive insight into triclosan—from widespread occurrence to health outcomes

Milanović

Đurić

Milošević

et al. 2021

Environ Sci Pollut Res

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Section: Occurrence Of Tcs In Different Environmental Matricesmentioning

confidence: 99%

Comprehensive insight into triclosan—from widespread occurrence to health outcomes

Milanović

Đurić

Milošević

et al. 2021

Environ Sci Pollut Res

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“…CWPO processes using Fe/Cu/Al-PILCs are highly efficient in the removal of antibiotic sulfanilamide, achieving removal efficiency of 99% [ 73 ]. Similarly, organochloride compounds have been treated through photocatalysis by TiO 2 -pillared fluorine mica, reaching 63% degradation in 30 min and 100% in 5 h, in the treatment of hexachlorocyclohexane (HCH) [ 74 , 75 ]. As for industrial effluents and persistent organic pollutants, AOP/PILC systems have been extensively studied in the treatment of compounds such as methyl parathion [ 76 ], xylenes [ 77 ], and coffee wastewater [ 78 ].…”

Section: Resultsmentioning

confidence: 99%

Research Trends on Pillared Interlayered Clays (PILCs) Used as Catalysts in Environmental and Chemical Processes: Bibliometric Analysis

Macías-Quiroga

Rengifo‐Herrera

Arredondo-López

et al. 2022

The Scientific World Journal

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Over the last four decades, a large number of studies have been published on pillared interlayered clays (PILCs) used as adsorbent materials and catalysts or supports for transition metals in heterogeneous catalysis. Particularly, PILCs have been used for water treatment through advanced oxidation processes (AOPs) to remove organic pollutants. They have also been studied in various chemical and environmental processes. Because of the growing interest in PILCs, this article is focused on analyzing scientific publications such as research/review articles and book chapters from the last four decades (from 1980 to 2019) through a bibliometric analysis (BA) to visualize and describe research trends on PILCs. By narrowing the bibliographic search to titles, keywords, and abstracts of publications related to PILCs, using Scopus and Web of Science (WoS) (the two scientific databases), a total of 3425 documents have been retrieved. The bibliometric dataset was analyzed by VantagePoint®. The main research trends identified in the last four decades were the use of PILCs in environmental processes (34.4% of total publications) along with chemical processes (petrochemical reactions 17.5%, SCR NOx 10.8%, and decomposition 8.2%). In environmental processes, PILCs have been used in photo-oxidation (32%), CWPO (21.1%), and heterogeneous catalysis (19.4%). Phenols, dyes, and VOCs have been the main pollutants studied using PILCs as catalysts. Fe, Ti, Zr, Cu, and Co are the most supported active phases in PILCs. Other research trends grouped by characterization techniques, countries, research areas, institutes, scientific journals that have published the most on this topic, number of publications per 5-year period, and most frequently used keywords through the last four decades have been identified. It was determined that the number of publications on PILCs has increased since 1980 and the countries with the highest number of publications are China, Spain, and The United States of America.

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“…Waste incineration, consumer goods production, transportation, energy generation, mineral and metal mining (ferrous and nonferrous). Chemical synthesis also emits alarmingly large amounts of POPs into our precious environment [7].…”

Section: Sources and Fate Of Pops In The Environmentmentioning

confidence: 99%

“…Persistent organic pollutants are known for their semi-volatility, which is a trait of their physicochemical properties that allows them to exist in the vapor phase or adsorbed on air particles, allowing for long-range movement in the atmosphere. Persistent organic pollutants are everywhere; they possess the ability to move through air, soil and water before being naturally decomposed [9]. They have been found in both industrialized and non-industrialized places, in urban and rural settings, in heavily populated and poorly populated areas, without significant human aids.…”

Section: Sources and Fate Of Pops In The Environmentmentioning

confidence: 99%

See 1 more Smart Citation

Recent Developments in the Application of Advanced Oxidative Processes for Remediation of Persistent Organic Pollutants from Water

Daramola¹,

Adebayo²

2022

Environmental Sciences

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Environmental pollution as a result of industrialization is a continuous menace. In our precious environment, Persistent organic pollutants (POPs) are constantly present and these pollutants are of great concern because of their high level of toxicity, persistency and bioaccumulation. Therefore, this chapter discusses different types and sources of POPs in the environment. The chapter also introduces Advanced oxidative processes (AOPs) and the classes of AOPs. Removal of selected POPs from aqueous solutions by AOPs, such as sulfate radical, ionizing radiation, heterogeneous photocatalysis, electrohydraulic discharge system, ozonation, and Fenton processes, were discussed. The major aim of the chapter is to make available to environmental scientists the recent developments in the removal of POPs by AOPs.

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A critical review on the formation, fate and degradation of the persistent organic pollutant hexachlorocyclohexane in water systems and waste streams

Cited by 71 publications

References 208 publications

Comprehensive insight into triclosan—from widespread occurrence to health outcomes

Comprehensive insight into triclosan—from widespread occurrence to health outcomes

Research Trends on Pillared Interlayered Clays (PILCs) Used as Catalysts in Environmental and Chemical Processes: Bibliometric Analysis

Recent Developments in the Application of Advanced Oxidative Processes for Remediation of Persistent Organic Pollutants from Water

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