Degradation of TCE, PCE, and 1,2–DCE DNAPLs in contaminated groundwater using polyethylenimine-modified zero-valent iron nanoparticles

Lin, Kuen‐Song; Mdlovu, Ndumiso Vukile; Chen, Chung‐Yu; Chiang, Chao–Lung; Dehvari, Khalilalrahman

doi:10.1016/j.jclepro.2017.12.074

Cited by 75 publications

(17 citation statements)

References 72 publications

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“…In particular, biosynthesis using green plants and microorganisms, the use of ionic liquids as a replacement for molecular solvents, which are mostly toxic organic liquids or water, and microwave-assisted synthesis are reviewed. While nanoparticles have found diverse applications in different fields, their applications for biosorption of metals, degradation of dyes and other organic contaminants (Lin et al, 2018) and as catalysts in organic and environmental processes are discussed. In addition to reviewing the syntheses and applications of iron nanoparticles, the toxicological effects of these materials are briefly discussed and some critical challenges are identified that may inspire future research drive.…”

Section: Green-based Synthesis Of Iron Nanoparticlesmentioning

confidence: 99%

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Bolade

Williams

Benson

2020

Environmental Nanotechnology, Monitoring & Management

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The ever-increasing importance of green-based iron nanoparticles within the last decade and their environmental applications is a compelling reason to probe novel routes for their synthesis. Therefore, the principles of green chemistry, waste prevention, energy efficiency, safer solvents, and the benign precursor materials have become fundamental considerations in the synthesis process of these materials, birthing extensive study in this field. In this light, a comprehensive discussion of the successes of greener techniques and other biological nanotechnologies including the use of microorganisms (fungi, bacteria, actinomycetes, and viruses), algae, plant and their extracts for the synthesis of iron (Fe) nanoparticles (NPs) is presented. Although promising findings have been reported, substantial research gaps and the opportunity to capitalize on the emergence and rise of these eco-friendly sources have been identified. The application of synthesized nanoparticles for environmental remediation and their toxicological implications are also discussed.

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Section: Green-based Synthesis Of Iron Nanoparticlesmentioning

confidence: 99%

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Bolade

Williams

Benson

2020

Environmental Nanotechnology, Monitoring & Management

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“…Several methods are used for the degradation of trichloroethylene from aqueous water such as groundwater. These include dehalococcoides-containing microbial communities, polyethyleneimine-modified zero-valent iron nanoparticles, bysonophotolytic-activated persulfate processes, and polyethyleneimine-modified zero-valent iron nanoparticles (Mao et al, 2017;Lin et al, 2018;Bahrami et al, 2018;Mdlovu et al, 2019). Pesticides such as DDT, DDE, Endrin and Lindane were totally diminished using P. cepacia at low concentration (0.05 ppm) and after 24 h exposure.…”

Section: Technologies Used For De-chlorination Of Watermentioning

confidence: 99%

Chlorine and Chlorinated Compounds Removal from Industrial Wastewater Discharges: A Review

Al-Hwaiti

Aziz

Ahmad

et al. 2021

CMUJNS

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Adsorption techniques for industrial wastewater treatment rich in heavy metals and aqueous solutions of water-soluble such as Cl−, F−, HCO3−, NO3−, SO2−4, and PO3−, often include technologies for toxicity removals. The recent advancement and technical applicability in the treatment of chlorine and chlorinated compounds from industrial wastewater are reviewed in this article. Chlorine and chlorinated compounds are among the common discharged constituents from numerous industries. They can be carcinogenic or naturally toxic and can pose issues to aquatic ecosystems and human beings. Thus, elimination of chlorides and chlorinated compounds from water or wastewater is inevitable to get rid of the problem. Several techniques are being applied for the reduction of chlorine and chlorinated compounds in water. These include biodegradation, photochemical, adsorption, chemical, electrochemical, photo-electrochemical, membrane, supercritical extraction and catalytic method. Chlorine can react with various organic and inorganic micro-pollutants. However, the potential reactivity of chlorine for specific compounds is small, and only minor variations in the structure of the parent compound are anticipated in the water treatment process under typical conditions. This paper reviews different techniques and aspects related to chlorine removal, the types of chlorine species in solution and their catalyst, chlorine fate and transport into the environment, electrochemical techniques for de-chlorination of water, kinetics, mechanisms of reduction of chlorinated compounds, and kinetics of the electrochemical reaction of chlorine compounds. Keywords: Industrial waste, Kinetics, Wastewater, Water purification

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“…Surface modification includes the use of a stabilizer during the synthesis of the particles or after the synthesis by simply dispersing the particles (Zhao et al 2016). Various polymers/polyelectrolytes or mixture of polymers can be used, such as starch (He and Zhao 2005), carboxymethyl cellulose Dong et al 2011), guar gum and xanthan gum (Tiraferri et al 2008;Comba et al 2011a;Xue and Sethi 2012), butyl methacrylate or polymethacrylic acid (Sirk et al 2009), poly(4-styrenesulfonate) (Hydutsky et al 2007), polymethylmethacrylate or polyacrylic acid (Laumann et al 2013;Wang et al 2013;Colombo et al 2015), polyethylene glycol (San Román et al 2016), agar agar (Velimirovic et al 2016), polyphosphate (Kim et al 2017a), polyethylenimine (Lin et al 2018) or copolymers (Wang et al 2017). The use of emulsified nZVI with a hydrophobic membrane is also reported and applied in field experiments (Quinn et al 2005;Borden 2007;Berge and Ramsburg 2009).…”

Section: Nanoscale and Microscale Particlesmentioning

confidence: 99%

In Situ Chemical Reduction of Chlorinated Organic Compounds

Rodrigues

Betelu

Colombano

et al. 2020

Applied Environmental Science and Engineering for a Sustainable Future

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Chlorinated organic compounds (COCs) are common anthropogenic contaminants of soil and groundwater. COCs were industrially produced for different applications, such as dry cleaning, degreasing, or as pesticides. The presence of COCs in the environment is a major concern because of their toxicity and persistence.The most widely used method for their remediation is the conventional pump-and-treat system. However, this technology can hardly achieve a complete remediation because of geological characteristics and the presence of pore space pollution/adsorbed pollution, leading to a residual saturation. Hence, in addition to the improvement of pump-and-treat systems, in situ chemical processes have been largely developed. These chemical processes involve the injection of chemical reagents for the removal of residual source pollution and/or the treatment of plume contamination. Chemical degradation of COCs can be achieved by oxidative or reductive processes. If chemical oxidation has been first developed for in situ application, chemical reduction is one of the most important emerging remediation techniques for COCs treatment. Due to the electronegative character of chlorine substituents, COCs can effectively be transformed via reductive pathways. Moreover, reductive dechlorination has shown higher efficiency on highly chlorinated compounds. This chapter focuses on the presentation of the chemical reduction of the most common COCs pollutants, followed by kinetic and mechanistic approaches related to the use of iron-based particles. Developments on in situ chemical reduction technologies in order to enhance remediation rates are also exposed. Influence of environmental conditions for in situ applications is then developed. Finally, a case study is presented.

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Degradation of TCE, PCE, and 1,2–DCE DNAPLs in contaminated groundwater using polyethylenimine-modified zero-valent iron nanoparticles

Cited by 75 publications

References 72 publications

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Chlorine and Chlorinated Compounds Removal from Industrial Wastewater Discharges: A Review

In Situ Chemical Reduction of Chlorinated Organic Compounds

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