Adsorption and degradation processes of tributyltin and trimethyltin in landfill leachates treated with iron nanoparticles

Peeters, Kelly; Lespès, Gaëtane; Milačić, Radmila; Ščančar, Janez

doi:10.1016/j.envres.2015.08.001

Cited by 13 publications

(2 citation statements)

References 33 publications

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“…Organotin compounds are one of the most versatile categories of organometallic chemicals employed in industrial and agricultural settings. Trimethyltin (TMT), a strong neurotoxin, is often found in noteworthy concentrations in landfill leachates (Peeters, Lespes, Milacic, & Scancar, ). Acute exposure of TMT develops clinical features including amnesia, hyperphagia, hearing loss, disorientation, sensory neuropathy, and seizures (Besser et al, ).…”

Section: Introductionmentioning

confidence: 99%

Ginsenoside Rg3 and Rh2 protect trimethyltin‐induced neurotoxicity via prevention on neuronal apoptosis and neuroinflammation

Hou

Xue

Wang

et al. 2018

Phytotherapy Research

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The acute exposure of trimethyltin (TMT) develops clinical syndrome characterized by amnesia, aggressive behavior, and complex seizures. This neurotoxicant selectively induces hippocampal neuronal injury and glial activation accompanied with resultant neuroinflammation. Here we report two candidates ginsenosides Rg3 and Rh2 as neuroprotection agents using a mouse model of TMT intoxication via a single injection (2 mg/kg) and primary neuronal culture systems. Four-week administration of Rg3 or Rh2 significantly reduced TMT-induced seizures and behavioral changes. Rg3 and Rh2 significantly attenuated the oxidative stress evidenced by improvement on antioxidant enzymes and neuronal loss and astrocytic activation in mouse brain. In primary cultures, TMT induced significant neuronal death after 24-h intoxication and vigorous secretion of inflammatory cytokines (IL-1α/β, IL-6, TNF-α, and MCP-1) in astrocytes. Pretreatment with Rg3 or Rh2 not only reduced cell death but efficiently suppressed above mentioned inflammatory cytokines confirmed by antibody array test. The underlying protective mechanism by Rg3 and Rh2 was delineated through selective upregulation of PI3K/Akt and suppression of ERK activation. Intriguingly, Rg3 and Rh2 protected oligodendrocyte progenitor cells (O-2A) from TMT intoxication via promoting type 2 astrocytic differentiation without further inflammatory activation. Collectively, Rg3 and Rh2 interventions aimed at reducing oxidative stress and neuroinflammation neurotoxicity therefore are of therapeutic benefit in TMT-induced neurodegeneration. KEYWORDS neuroinflammation, oligodendrocyte progenitor cells (O-2A), oxidative stress, Rg3 and Rh2, TMT

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Section: Introductionmentioning

confidence: 99%

Ginsenoside Rg3 and Rh2 protect trimethyltin‐induced neurotoxicity via prevention on neuronal apoptosis and neuroinflammation

Hou

Xue

Wang

et al. 2018

Phytotherapy Research

View full text Add to dashboard Cite

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“…The application of nanoparticles in the powdered form into activated sludge can be highly efficient since all surfaces of the adsorbents are utilized and the mixing process facilitates the mass transfer (Sylvester et al 2007;Qu et al 2013;Ghani and Yusoff, 2015). The presence of magnetic iron (Fe) nanoparticles have proven to be useful for adsorption, reductively transforming or degrading different types of organic pollutants and inorganic contaminants (Noubactep, 2010;Singh et al 2012;Palanisamy et al 2013;Němeček et al 2014;Peeters et al 2015).…”

Section: Characterization Of Raw Dairy Wastewatermentioning

confidence: 99%

Application of A New Technology For Dairy Processing Wastewater Treatment Using Activated Sludge

2018

Aust. J. Basic & Appl. Sci.

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INTRODUCTION Dairy plants are considered as 'wet industry' because they consume large volumes of water, which is used for very diverse purposes. As a result, dairy plants discharge large volumes of wastewater (Wildbrett, 2002; Al-Wasify et al. 2017). The dairy industry, like most other agro-industries, generates wastewater characterized by high biological oxygen demand (BOD) and chemical oxygen demand (COD) due to their high organic content (Vidal et al. 2000). The discharge of the polluted water is the most significant contributor to the pollution of environment from the dairy industry in terms of both quality and quantity; contamination by the solid waste and waste gases are less serious (Wildbrett, 2002). The dairy-industry wastewater is primarily generated from the cleaning and washing operations in milk processing plants. It is estimated that about 2% of the total milk processed is wasted into drains (Munavalli and Saler, 2009). There are many physicochemical methods that have been studied and applied for wastewater treatment. These methods include screening, sedimentation, flotation, filtration, aeration, coagulation, ozonation, chlorination, ion exchange, degasification, neutralization, etc. However, these methods have many limitations such as the use of chemical agents, higher cost, partial treatment, production of secondary pollutants and production of large volumes of solids. Due to these limitations, the application of biological methods was more suitable to be used as an alternative technique (Rodrigues et al. 2008). Produced wastes (sludge and effluents) from food industries, including dairy industry, contain high levels of organic matter, fatty acids, oil and grease (O&G) and notable nitrogenous compounds (Porwal et al. 2015; Al-Wasify et al. 2017). Dairy wastewater is generally treated using biological methods such as activated sludge process, aerated lagoons, trickling filters, sequencing batch reactor, upflow anaerobic sludge blanket reactor, anaerobic filters, etc. (Demirel et al. 2005). Biological methods, like activated sludge process, are invariably employed for the secondary treatment of large number of industrial wastewaters. Nanoparticles are used for wastewater treatment due to its small size, crystal form, high surface area, structure, high catalytic ability, unique network order and its high reactivity (Zhang et al. 2007; Pavithra and Shanthakumar, 2017). The main aim of the present study is to evaluate the treatment process of dairy wastewater using activated sludge technology supplemented with nanoparticles. MATERIAL AND METHODS Samples and sampling: Two hundred liters of raw dairy wastewater were collected from El-Masreyeen factory in 6 th October City from the ground tank of compact unit, Egypt. Raw dairy wastewater samples were collected in plastic containers with 20 liters for each one. Samples were collected and transferred immediately for the experiments according to the standard methods (APHA, 2010). Device components: Figure (1) showed the device components of activated sludge...

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The Use of Al and Fe Nanoparticles for the Treatment of Micropollutants

Arslan-Alaton

Ölmez-Hancı

2017

Nanotechnologies for Environmental Remediation

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Adsorption and degradation processes of tributyltin and trimethyltin in landfill leachates treated with iron nanoparticles

Cited by 13 publications

References 33 publications

Ginsenoside Rg3 and Rh2 protect trimethyltin‐induced neurotoxicity via prevention on neuronal apoptosis and neuroinflammation

Ginsenoside Rg3 and Rh2 protect trimethyltin‐induced neurotoxicity via prevention on neuronal apoptosis and neuroinflammation

Application of A New Technology For Dairy Processing Wastewater Treatment Using Activated Sludge

The Use of Al and Fe Nanoparticles for the Treatment of Micropollutants

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