Removal of Cu(II) and tetracycline using an aromatic rings-functionalized chitosan-based flocculant: Enhanced interaction between the flocculant and the antibiotic

Jia, Shuying; Yang, Zhen; Yang, Weiben; Zhang, Tingting; Zhang, Shaopeng; Yang, Xinzhe; Dong, Yuan; Wu, Jiaqing; Wang, Yuping

doi:10.1016/j.cej.2015.08.003

Cited by 97 publications

(32 citation statements)

References 40 publications

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“…The final DMP removal efficiency increased from 81.6% to 100% within 24 h as the temperatures increased from 283 to 318 K, demonstrating that higher temperature was more favorable for DMP removal. This phenomenon could be explained by the fact that the increasing temperature greatly improved the driving force, and on the other hand, diminished the resistance of the mass transfer of adsorbate Jia et al, 2016). Similar results were also found in the literature by Thompson et al (2008) for basic hydrolysis of esters such as poly (2-aminoethyl methacrylate).…”

Section: Removal Kineticssupporting

confidence: 86%

High-efficient removal of phthalate esters from aqueous solution with an easily regenerative magnetic resin: Hydrolytic degradation and simultaneous adsorption

Wang

Hua

et al. 2018

Journal of Cleaner Production

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Efficient removal of phthalate esters (PAEs) is of considerable concern since they pose serious ecological and human health risks. In this study, a magnetic strong base anion-exchange resin named MAER-OH was prepared and used as a solid basic catalyst and effective adsorbent. The MAER-OH was systematically characterized by scan electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermos-gravimetric analyses and vibrating sample magnetometer. Various factors influencing the removal of dimethyl phthalate (DMP) such as initial DMP concentration, resin dosage and temperature were investigated. The DMP can be completely converted to far less toxic phthalate at the final treatment stage, and more attractively, the potential hydrolysis intermediates were ion-exchanged by the resin simultaneously without obvious change of solution pH. The co-existing chloride was found to obviously enhance the DMP removal efficiency but result in an obvious increase of solution pH and formation of much more hydrolytic intermediates. The exhausted MAER-OH could be regenerated by 8.0% NaOH solution with negligible efficiency loss, and maintain its virgin removal efficiency for 20 successive cycles. Sequencing batch jar tests indicated that more than 5000 bed volumes of DMP solution (10 mg L −1 ) were efficiently treated by the MAER-OH and the saturated capacity of MAER-OH for DMP removal was 134.9 mg g −1 . Taken together, this highly effective and reusable MAER-OH can be easily modularized and separated, promising its huge potential for industrial-scale PAEs wastewater treatment. Fig. 8. The DMP removal performance by using MAER-OH in sequencing batch mode: (a) without co-existing anion and (b) in the presence of 50 mg L −1 NaCl in solution (1.0 mL resin, 318 K, 10 mg L −1 DMP).

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Section: Removal Kineticssupporting

confidence: 86%

High-efficient removal of phthalate esters from aqueous solution with an easily regenerative magnetic resin: Hydrolytic degradation and simultaneous adsorption

Wang

Hua

et al. 2018

Journal of Cleaner Production

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“…In this review, we have described the synthesis techniques and flocculation efficiency associated with several non-ionic (1-26, cationic , anionic (60)(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71)(72) and amphoteric (73)(74)(75)(76)(77)(78)(79)(80)(81)(82) polymers, and a summary of each type of polymeric flocculant is presented in Table 1 to Table 4, respectively. The development of synthetically-modified polysaccharide-based materials was observed to be of significant research interest recently due to their aforementioned biodegradable characteristics compared to synthetic flocculants.…”

Section: Discussionmentioning

confidence: 99%

“…2 Recent studies conducted by Yang and coworkers introduced temperature-responsive polymers 42 and 43 for flocculation of copper and tetracycline from wastewater. 68,69 Multiple other studies have reported the grafting of DMC onto chitosan backbone to produce polymers 44-46. [70][71][72][73] However, in polymer 46, the chitosan backbone was also modified by ring-opening reaction with glycidyl methacrylate prior to the graft polymerization process.…”

Section: Cationically-modified Polysaccharidesmentioning

confidence: 99%

Synthesis, properties and performance of organic polymers employed in flocculation applications

2016

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A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription. Flocculation is a common technique that is widely used in many industrial applications to promote solid-liquid separation processes. The addition of a polymeric flocculant allows for destabilization of suspended colloidal particles, and thus significantly increases their sedimentation rate. Polymeric flocculants are generally divided into four categories, which include non-ionic, cationic, anionic, and amphoteric polymers. This minireview article summarises important information on the recent design and synthesis of polymeric materials from these four categories. In addition, their properties and flocculation efficiency are also presented and discussed.

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“…In recent years, chitosan-based composites using metals [37], metal oxides [38] and bimetals [39] have been receiving a large attention as alternative sorbents in water treatment processes. These kinds of materials have been chosen primarily due to their high adsorption capability [40]. Arayne and co-workers in 2011 studied the potential of raw chitosan beads and chitosan beads modified with ZnO nanoparticles (Cs/ZnO NPs) to remove permethrin, an insecticide largely employed in agriculture [41].…”

Section: Chitosan-based Materials For the Removal Of Organic Pollutantsmentioning

confidence: 99%

A Review of Chitosan-Based Materials for the Removal of Organic Pollution from Water and Bioaugmentation

Escudero-Oñate¹,

Martínez-Francés²

2018

Chitin-Chitosan - Myriad Functionalities in Science and Technology

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Chitin is a natural polymer extracted mostly from shrimp or crab shells and is the Earth's second most abundant polysaccharide. After a simple deacetylation procedure, chitin is converted into chitosan that consists in a polysaccharide structure of deacetylated-β-glucosamine. Chitosan has been largely employed in wastewater treatment the removal of colloids through coagulation-flocculation processes. Different chitosan based materials have been produced and tested in the removal of inorganic pollutants such as toxic metals and metalloids, nutrients, dyes, micropollutants and hydrocarbons. Sorbents such as magnetic-activated carbon chitosan have been successfully tested in the removal of antibiotics (ciprofloxacin, erythromycin and amoxicillin) from water. Raw chitosan and ZnO nanoparticles entrapped in chitosan have demonstrated an excellent potential for the removal of the insecticide permethrin from aqueous effluents. Chitin and chitosan in flake and powder form have also demonstrated a promising effectiveness in the removal of oil spilled in seawater. Superhydrophobic and superoleophilic sponges modified by thioles have been also prepared from chitosan and used for the removal of oil spills. Chitosan hydrogels have been tested as well as entrapment matrices for the immobilization of hydrocarbon-degrading biomass for oil spills. Strains such as R. corynebacteriorides (QBTo), Bacillus subtilis LAMI008 and B. pumilus have been successfully immobilized and employed in hydrocarbon degradation processes. In this book chapter, the use of chitosan and chitosan-based materials in the removal of organic pollutants from water is reviewed.

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Removal of Cu(II) and tetracycline using an aromatic rings-functionalized chitosan-based flocculant: Enhanced interaction between the flocculant and the antibiotic

Cited by 97 publications

References 40 publications

High-efficient removal of phthalate esters from aqueous solution with an easily regenerative magnetic resin: Hydrolytic degradation and simultaneous adsorption

High-efficient removal of phthalate esters from aqueous solution with an easily regenerative magnetic resin: Hydrolytic degradation and simultaneous adsorption

Synthesis, properties and performance of organic polymers employed in flocculation applications

A Review of Chitosan-Based Materials for the Removal of Organic Pollution from Water and Bioaugmentation

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