On-line mini-column flow injection electrochemical method for researching on resuscitation and dehydration performance of deeply-fouled cation-exchange resins

Li, Yongsheng; Li, Qiao-Jing; Huang, Bo; Gao, Xiu-Feng

doi:10.1016/j.cej.2018.03.140

Cited by 6 publications

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the use of ion exchange technology for the treatment of water-soluble pollutants has the advantages of high selectivity, regeneration and simple operation [21]. However, it will lead to resin failure after long-term use [22]. Membrane separation technology has the advantages of relatively simple operation, easy scalability, reliable performance [23], etc.…”

Section: Introductionmentioning

confidence: 99%

Research on Carbon Dioxide-Assisted Electrocoagulation Technology for Treatment of Divalent Cations in Water

Chang,

Li,

Guo

et al. 2024

Water

View full text Add to dashboard Cite

In the external drainage water of Xinjiang Karamay Petrochemical Company, the calcium and magnesium ion contents are as high as 630 mg/L and 1170 mg/L, respectively. These ions are subsequently scaled at large quantities in water treatment equipment, which greatly reduces the efficiency of the process. This study used a coupled chemical precipitation (CP) and electrocoagulation (EC) method to deal with external drainage water. The results show that the removal rates of calcium and magnesium were 94.71% and 96.33%, respectively, when the pH was adjusted with sodium silicate and EC was introduced after saturating the water samples with CO2. In this study, a quadratic polynomial equation was developed for predicting the removal of calcium and magnesium ions using this coupled technique under three factors of current density (CD) (15, 20 and 25 mA/cm2), reaction time (RT) (30, 40 and 50 min) and pH (10.0, 10.5 and 11.0). It was found that these three variables have a significant effect on the removal of both the abovementioned ions. The response surface method based on a Box–Behnken design showed that the average removal rates of calcium and magnesium ions could be 96.57% and 98.66% at a CD of 22 mA/cm2, RT of 46 min and pH of 11. This study confirmed the presence of calcium carbonate in the solid product through XRD and SEM analysis. The results indicate that this study is promising, and the developed technique can also be used to remove the high concentrations of calcium and magnesium ions from different wastewaters.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on Carbon Dioxide-Assisted Electrocoagulation Technology for Treatment of Divalent Cations in Water

Chang,

Li,

Guo

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

Physico‐chemical processes

Ouyang

Chen

Shi

et al. 2019

Water Environment Research

View full text Add to dashboard Cite

The review scans research articles published in 2018 on physico‐chemical processes for water and wastewater treatment. The paper includes eight sections, that is, membrane technology, granular filtration, flotation, adsorption, coagulation/flocculation, capacitive deionization, ion exchange, and oxidation. The membrane technology section further divides into six parts, including microfiltration, ultrafiltration, nanofiltration, reverse osmosis/forward osmosis, and membrane distillation.Practitioner points Totally 266 articles on water and wastewater treatment have been scanned; The review is sectioned into 8 major parts; Membrane technology has drawn the widest attention from the research community.

show abstract

Preparation of 5-methyl-3,5-dipropyl-2-pyrazoline catalyzed by chloroaluminate ionic liquids

Chang

Yuan

Xia³

et al. 2022

Journal of Molecular Structure

View full text Add to dashboard Cite

On-line mini-column flow injection electrochemical method for researching on resuscitation and dehydration performance of deeply-fouled cation-exchange resins

Cited by 6 publications

References 36 publications

Research on Carbon Dioxide-Assisted Electrocoagulation Technology for Treatment of Divalent Cations in Water

Research on Carbon Dioxide-Assisted Electrocoagulation Technology for Treatment of Divalent Cations in Water

Physico‐chemical processes

Preparation of 5-methyl-3,5-dipropyl-2-pyrazoline catalyzed by chloroaluminate ionic liquids

Contact Info

Product

Resources

About