Modification of industrial divinyl rubber by oxidative chlorophosphorylation and assess-ment of metal ion removal efficiency of obtained polymer sorbent

Abstract The main goal of this study was the preparation of materials containing phosphoric functionalities on the base of industrial polymer - divinyl rubber and the assessment of their removal efficiency of heavy metals from aqueous solutions. The new method concerns the oxidative chlo-rophosphorylation of divinyl rubber by PCl3 with the following modification of obtained inter-mediates to create -PO(OH)2, -OPO(OH)2 groups in the polymer chain. The obtained modified polymers get some new properties such as complex formation and capability for ion exchange. The nature and distribution of phosphoric functionalities in the polymer were studied by the methods of NMRand FTIR- spectroscopy, thermal analysis and scanning electron microscopy. The sorption properties of synthesized polymers towards some cations (Cu+2, Ni+2, Co+2 and Zn+2) from water solutions have been tested. It has been shown that the metal removal efficiency of prepared material depends on pH of medium, initial concentration and type of metal ions.

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Zeolite and short-cut fiber-based wet-laid filter media for particles and heavy metal ion removal of wastewater

Journal of Industrial Textiles ◽

10.1177/1528083719866934 ◽

2019 ◽

pp. 152808371986693

Author(s):

Kyung Chul Sun ◽

Jung Woo Noh ◽

Yeong Og Choi ◽

Sung Hoon Jeong ◽

Yeon Sang Kim

Keyword(s):

Removal Efficiency ◽

Metal Ion ◽

High Efficiency ◽

Solid Particles ◽

Filter Media ◽

Main Layer ◽

Metal Ion Removal ◽

Ion Removal ◽

Heavy Metal Ion Removal ◽

Efficiency Rate

As development of industrialization grows constantly, the purification of hazardous solid particles and ions is one of the most important topics in environment and ecosystem. In this report, we designed and developed a novel and advanced type of filter media for the removal of both solid particles and hazardous ions, we choose Cs+ and Ca2+ here, by enclosing zeolite in wet-laid nonwoven media. The performance of the prepared filter media was evaluated by continuous sorption experiments, which were followed by solid particles and ion-removal efficiency studies. The prepared filter media showed excellent uniformity. The prepared filter media exhibited a solid removal efficiency rate which ranged from 80 to 82%, and the initial removal efficiency of ions exceeded 99%. These values are in effect as the main layer in the completed liquid filter media and for the next step to prepare the completed multi-layered liquid filter units. The results here suggest that this novel filter media can be used in high-efficiency and multi-functional liquid filter units for residential and industrial engineering.

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Efficient heavy metal ion removal by triazinyl-β-cyclodextrin functionalized iron nanoparticles

RSC Advances ◽

10.1039/c5ra15134a ◽

2015 ◽

Vol 5 (110) ◽

pp. 90602-90608 ◽

Cited By ~ 15

Author(s):

Amir Abdolmaleki ◽

Shadpour Mallakpour ◽

Sedigheh Borandeh

Keyword(s):

Heavy Metal ◽

Aqueous Solutions ◽

Metal Ion ◽

Iron Nanoparticles ◽

Metal Removal ◽

Heavy Metal Removal ◽

Metal Ion Removal ◽

Ion Removal ◽

Heavy Metal Ion Removal ◽

Nano Adsorbent

A novel magnetic nano-adsorbent containing Fe3O4 nanoparticles functionalized with MCT-β-CD was fabricated and exhibited a remarkable enhancement in heavy metal removal efficiency from aqueous solutions.

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Heavy Metal Removal from Aqueous Solution Using Biosurfactants Produced by Pseudomonas aeruginosa with Corn Oil as Substrate

Indonesian Journal of Chemistry ◽

10.22146/ijc.28805 ◽

2018 ◽

Vol 18 (3) ◽

pp. 472

Author(s):

Venty Suryanti ◽

Sri Hastuti ◽

Tutik Dwi Wahyuningsih ◽

Mudasir Mudasir ◽

Dian Kresnadipayana ◽

...

Keyword(s):

Aqueous Solution ◽

Heavy Metal ◽

Metal Ions ◽

Contact Time ◽

Metal Ion ◽

Metal Removal ◽

Corn Oil ◽

Metal Ion Removal ◽

Ion Removal ◽

Removal Capacity

The batch removal of Cu(II), Cd(II) and Pb(II) from individual heavy metal ion aqueous synthetic solution using biosurfactants produced by Pseudomonas aeruginosa with corn oil as substrate was investigated. The metal ion removal process of crude preparation biosurfactants (CPB) was established to be dependent on the initial pH and contact time. The optimum metal removal was observed at pH 6.0 of the initial metal solution and 10 min of contact time. The affinity sequence for metal ion removal was Pb(II)>Cd(II)>Cu(II). The removal capacity value of biosurfactant for Cu(II), Cd(II) and Pb(II) from single metal ions solution were 0.169, 0.276 and 0.323 mg/g, respectively. The removal capacity value of biosurfactant for Cu(II), Cd(II) and Pb(II) from multi metal ions solution were 0.064, 0.215 and 0.275 mg/g, respectively. The removal capacity of individual metal ion was diminished by the presence of other metal ions in multi metal ions from synthetic aqueous solution. The removal capacity value of biosurfactant for Cu(II), Cd(II) and Pb(II) from silver industry wastewater were 0.027, 0.055 and 0.291 mg/g, respectively. The results indicated that biosurfactants have potential to be used in the remediation of heavy metals in industrial wastewater.

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An intelligent displacement pumping film system: A new concept for enhancing heavy metal ion removal efficiency from liquid waste

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2014.04.035 ◽

2014 ◽

Vol 274 ◽

pp. 436-442 ◽

Cited By ~ 22

Author(s):

Zhongde Wang ◽

Yanting Feng ◽

Xiaogang Hao ◽

Wei Huang ◽

Guoqing Guan ◽

...

Keyword(s):

Heavy Metal ◽

Removal Efficiency ◽

Metal Ion ◽

Liquid Waste ◽

Heavy Metal Ion ◽

Film System ◽

Metal Ion Removal ◽

Ion Removal ◽

System A ◽

Heavy Metal Ion Removal

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The Adsorption of Heavy Metal from Aqueous Solutions onto the Porous Biomorphic-Genetic Composite of Hydroxyapatite/Carbon with Eucalyptus and Bamboo Template

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.730.260 ◽

2015 ◽

Vol 730 ◽

pp. 260-264 ◽

Cited By ~ 1

Author(s):

Shuang Cao ◽

Bin Huang ◽

Zong Qiang Zhu ◽

Yi Nian Zhu

Keyword(s):

Heavy Metals ◽

Metal Ion ◽

Contaminated Water ◽

Initial Concentration ◽

Metal Ion Removal ◽

Ion Removal ◽

Adsorbed Amount ◽

Removal Of Heavy Metals ◽

New Material ◽

Ammonia Leaching

This study used two types of plant, eucalyptus and bamboo, to produce sorbents for copper (II), cadmium (II), zinc (II), and lead (II) metal ion removal in a water bath shake. The porous biomorphic-genetic composite of hydroxyapatite/carbon with eucalyptus template (PBGC-Fe/C-E) and the porous biomorphic-genetic composite of hydroxyapatite/carbon with bamboo template (PBGC-Fe/C-B) were prepared using eucalyptus and bamboo as plant templates, and through various processes including ammonia leaching, cyclical impregnation using calcium hydroxide and diammonium solutions, and aerobic firing inside muffle furnaces. Tests were conducted on the HAP/C composites to observe their adsorption effects on Cu (II), Zn (II), Pb (II), and Cd (II). The results show that the prepared composites were able to adsorb heavy metals in water effectively. The results indicated that the adsorbed amount of PBGC-Fe/C-E were found to be 16.4371, 4.6725,24.5528, 17.0194 mg/1 for Cu (II), Zn (II), Pb (II) and Cd (II) ions at initial concentration of 50mg/L (25°C), respectively. The adsorbed amount of PBGC-Fe/C-B were found to be 10.5876, 3.9142,21.2463, 13.4721 mg/1 for Cu (II), Zn (II), Pb (II) and Cd (II) ions at initial concentration of 50mg/L (25°C), respectively. The prepared adsorbent is expected to be a new material for the removal of heavy metals from contaminated water.

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