Ion exchange recovery of zinc from chloride and chloride–sulfate solutions

Кононова, О. Н.; Mikhaylova, N.V.; Melnikov, A.M.; Kononov, Yu. S.

doi:10.1016/j.desal.2011.02.005

Cited by 7 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be seen from these data that zinc was not adsorbed from weak acidic media when copper was present (regardless of initial concentrations of both ions). However, in a previous study, 32 tions was observed. This indicates to the joint action of simultaneously sorbed ions, leading to the increase in the selectivity of the resins to copper(II).…”

Section: Resultscontrasting

confidence: 48%

See 1 more Smart Citation

Sorption recovery of copper (II) and zinc (II) from chloride aqueous solutions

et al. 2014

View full text Add to dashboard Cite

The present investigation was devoted to the simultaneous sorption recovery of copper(II) and zinc(II) ions on some commercial anion exchangers with different physico-chemical properties. The initial concentrations of zinc and copper were 1-3 mmol L -1 and the recovery was performed in 0.01 and 2 M hydrochloric acid solutions. It was shown that the investigated anion exchangers possess good sorption and kinetic properties. After the recovery of copper and zinc from the strongly acidic solutions, their selective elution was realized by means of 2 M hydrochloric acid solution (zinc recovery) and 2 M ammonia solution (copper recovery). In the weakly acidic solutions, copper and zinc were separated during sorption, as zinc sorption did not proceed in this case. The subsequent copper(II) elution was performed using 2 M ammonia solution. The anion exchangers Purolite S985, Purolite A500 and AM-2B could be recommended for zinc and copper recovery from acidic industrial solutions and wastewater.

show abstract

Section: Resultscontrasting

confidence: 48%

“…The selection of the anion exchangers was based on their good sorption properties towards zinc, which were revealed in a previous study. 32 Before use, the anion exchangers were prepared according to standard methods and loaded by 1 M HCl, to convert the resins into the Cl -form.…”

Section: Introductionmentioning

confidence: 99%

Sorption recovery of copper (II) and zinc (II) from chloride aqueous solutions

et al. 2014

View full text Add to dashboard Cite

show abstract

“…(2016) [1][2][3][4][5][6][7][8][9] www.deswater.com doi: 10.1080/19443994.2016.1195289 chromium containing, and comprehensive wastewater), deplating wastewater, and mix-wastewater (the mixture of cleaning wastewater, condensate, and leakage) [2]. The main contaminants in plating pieces pretreatment wastewater are mineral oil, surfactant (such as degreaser), metallic oxide, acid, and alkali.…”

Section: Desalination and Water Treatmentmentioning

confidence: 98%

“…Adsorption [3], ion exchange [4], chemical precipitation [5], and electrodialysis [6,7] can be used to treat wastewater which contain high concentration of heavy metals, such as electroplating rinse wastewater and mix wastewater. After the removal of heavy metals, wastewater is collected and treated by reverse osmosis (RO) for further reuse.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Effects of Cu²⁺ on biological process of wastewater treatment plant (WWTP) in electroplating industrial park

Wen

Wang

Chen

et al. 2016

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R A C TThe construction of industrial clusters in China increases the possibility of treating heavy metals containing wastewater by biological treatment process. Those heavy metals which entered wastewater treatment systems will have a toxic impact on the bacteria. The effects of 0-10 mg L −1 Cu 2+ on the performance of an anoxic/oxic-membrane bioreactor (A/O-MBR) process, which simulated the wastewater treatment process in a local surface processing industrial park, in treating electroplating mixed wastewater were investigated in this research. Under the experimental conditions (simulated the real influent scenario), COD removal efficiency and nitrification efficiency of the process were obviously inhibited by 5 and 3 mg L −1 Cu 2+ , respectively, while were severely inhibited by 10 and 5 mg L −1 Cu 2+ , respectively. Above 1 mg L −1 of Cu 2+ would put negative effects on the activities of both autotrophic and heterotrophic bacteria, moreover, autotrophic bacteria were more sensitive to Cu 2+ than heterotrophic bacteria. The synthesis of the extracellular polymeric substance (EPS) can be stimulated by 1 mg L −1 Cu 2+ while inhibited at higher concentrations. The quantity of EPS was in direct proportion to that of proteins in the experiment indicated that proteins in EPS played a major role in protecting cells from the harm of heavy metals.

show abstract