Recovery of nickel and water from wastewater with electrochemical combination process

Peng, Changsheng; Jin, Ruijie; Li, Guangyu; Li, Fasheng; Gu, Qingbao

doi:10.1016/j.seppur.2014.08.025

Cited by 68 publications

(16 citation statements)

References 23 publications

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“…A large number of Ni 2+ -containing wastewater is produced. Nickel may cause different types of diseases, such as lung cancer, kidney problems, gastrointestinal disorders, pulmonary fibrosis, skin dermatitis, rapid respiration, cyanosis, and extreme weakness if it is beyond the permitted concentration [2][3][4][5]. The treatment of wastewater containing heavy metals in a safe, effective and economic way is always challenging.…”

Section: Introductionmentioning

confidence: 99%

Zeolite Synthesized from Coal Fly Ash Produced by a Gasification Process for Ni2+ Removal from Water

et al. 2018

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There are increasing demands and great potential of coal gasification in China, but there is a lack of studies focused on the disposal and utilization of coal fly ash produced by the gasification process. In this study, a coal fly ash sample derived from a gasifier in Jincheng, China, was utilized as raw material for the synthesis of zeolite by alkali fusion followed by hydrothermal treatments. The effects of operation conditions on the cation exchange capacity (CEC) of synthesized zeolite were investigated. The synthesized zeolite with the highest CEC (270.4 meq/100 g), with abundant zeolite X and small amount of zeolite A, was produced by 1.5 h alkali fusion under 550 • C with NaOH/coal fly ash ratio 1.2 g/g followed by 15 h hydrothermal treatment under 90 • C with liquid/solid ratio 5 mL/g and applied in Ni 2+ removal from water. The removal rate and the adsorption capacity of Ni 2+ from water by the synthesized zeolite were determined at the different pH, contact time, adsorbent dose and initial Ni 2+ concentration. The experimental data of adsorption were interpreted in terms of Freundlich and Langmuir equations. The adsorption of Ni 2+ by the synthesized zeolite was found to fit sufficient using the Langmuir isotherm. More than 90% of Ni 2+ in water could be removed by synthesized zeolite under the proper conditions. We show that the coal fly ash produced by the gasification process has great potential to be used as an alternative and cheap source in the production of adsorbents.

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Section: Introductionmentioning

confidence: 99%

Zeolite Synthesized from Coal Fly Ash Produced by a Gasification Process for Ni2+ Removal from Water

et al. 2018

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“…Industrial liquid effluents have a rather complex chemical composition, containing organic and inorganic compounds. 19 Copper is an essential metal in living organisms; it is estimated that in a healthy human diet two to five milligrams of copper are necessary every day. Copper is distributed all over the human body because it integrates with several important enzymes that are involved in vital biological processes.…”

Section: Introductionmentioning

confidence: 99%

Electrode Material Containing Graphite Incorporated to an Amino-Functionalized Polydimethylsiloxane Network for the Detection of Copper

Silva¹,

Lucho²,

Pissetti³

2018

J. Braz. Chem. Soc.

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Graphite was incorporated to a polydimethylsiloxane (PDMS) polymer network functionalized with amino groups to obtain an electrode material and used to detect copper ions in aqueous solutions and sugarcane spirit. The polymer network was prepared with PDMS, 3-aminopropyltrimethoxysilane (APTMS), tetraethyl orthosilicate (TEOS) with addition of graphite to obtain the electrode material. The materials were prepared with different mass concentrations of PDMS: 0, 3, 6, 12 and 18%; and characterized by thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). Quasi-reversible behavior was found when studying the [Fe(CN) 6 ] 3-/4-redox probe and were electrochemically stable up to 100 consecutive cycles. Electrochemical impedance measurements showed a second time constant at high frequencies for the PDMS electrodes, indicating a second phase in the polymer network with resistive properties, probably due to an increase in the material polymerization resistance. Square wave voltammetry studies were conducted with these electrodes to detect copper(II) ions in aqueous solution. The electrode proposed was applied to determine Cu 2+ in a real sample, sugarcane spirit. The PDMS electrodes prepared here presented a potential to be applied as electrochemical sensors for detecting copper ions.

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“…Electrochemical treatments can be performed by electrodeposition, electrodialysis, electrodeionization, or combination of these processes [9]. Electrodeposition occurs based on the following reactions: Competing reactions sometime occur in the cathode, for instance hydrogen gas (H 2(g) ) formation and water hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Removal of nickel ion from electroplating wastewater using double chamber electrodeposition cell (DCEC) reactor partitioned with water hyacinth (Eichhornia crassipes) leaves

Djaenudin

WIDYARANI

Hariyadi

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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PAPER • OPEN ACCESSRemoval of nickel ion from electroplating wastewater using double chamber electrodeposition cell (DCEC) reactor partitioned with water hyacinth (Eichhornia crassipes) leaves Abstract. Nickel is a heavy metal present in many types of industrial wastewater, and its contamination to the water bodies should be prevented. The objective of this research was to study the performance of Double Chamber Electrodeposition Cell (DCEC) for nickel ion removal. Water hyacinth (Eichhornia crassipes) leaves were used to separate the two chambers. The experiment was performed with synthetic electroplating wastewater in a batch system for 72 h. Changes of pH, electric current, and nickel ion concentration in the catholyte were monitored. An experiment with Single Chamber Electrodeposition Cell (SCEC) was also performed as comparison. After 72 h operation of DCEC, nickel ion concentration in the catholyte decreased from 2200 g.m -3 to 0.4 g.m -3 , equivalent to 99.98% removal. DCEC reactor performed better than the SCEC reactor that only achieved 59% removal. The results show that an almost-complete removal of nickel ion can be achieved with DCEC. Water hyacinth leaves can be used as low-cost alternatives for industrial membranes.

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Recovery of nickel and water from wastewater with electrochemical combination process

Cited by 68 publications

References 23 publications

Zeolite Synthesized from Coal Fly Ash Produced by a Gasification Process for Ni2+ Removal from Water

Zeolite Synthesized from Coal Fly Ash Produced by a Gasification Process for Ni2+ Removal from Water

Electrode Material Containing Graphite Incorporated to an Amino-Functionalized Polydimethylsiloxane Network for the Detection of Copper

Removal of nickel ion from electroplating wastewater using double chamber electrodeposition cell (DCEC) reactor partitioned with water hyacinth (Eichhornia crassipes) leaves

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