Aluminum-based electrocoagulation for residual fluoride removal during per- and polyfluoroalkyl substances (PFASs) wastewater treatment

Zhang, Mingkun; Tan, Xianjun; Ding, Wenhui; Jiang, Zhenying; He, Kai; Zhao, Bo; Takeuchi, Haruka; Huang, Yuxiong

doi:10.1016/j.seppur.2022.122989

Cited by 10 publications

(2 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, removing excessive fluorides from water is still an urgent task. Various technologies, such as electrocoagulation [3], ion exchange [4], and membrane techniques [5], have attracted significant interest in fluoride removal. Nevertheless, the high operating cost or the use of toxic chemicals have restricted their applications in water treatment [2].…”

Section: Introductionmentioning

confidence: 99%

Removal of Fluoride from Aqueous Solution Using Shrimp Shell Residue as a Biosorbent after Astaxanthin Recovery

Zhang

Liao

et al. 2023

Molecules

View full text Add to dashboard Cite

Natural astaxanthin has been widely used in the food, cosmetic, and medicine industries due to its exceptional biological activity. Shrimp shell is one of the primary natural biological sources of astaxanthin. However, after astaxanthin recovery, there is still a lot of chitin contained in the residues. In this study, the residue from shrimp (Penaeus Vannamei) shells after astaxanthin extraction using ionic liquid (IL) 1-ethyl-3-methyl-imidazolium acetate ([Emim]Ac) was used as a bioadsorbent to remove fluoride from the aqueous solution. The results show the IL extraction conditions, including the solid/liquid ratio, temperature, time, and particle size, all played important roles in the removal of fluoride by the shrimp shell residue. The shrimp shells treated using [Emim]Ac at 100 °C for 2 h exhibited an obvious porous structure, and the porosity showed a positive linear correlation with defluorination (DF, %). Moreover, the adsorption process of fluoride was nonspontaneous and endothermic, which fits well with both the pseudo-second-order and Langmuir models. The maximum adsorption capacity calculated according to the Langmuir model is 3.29 mg/g, which is better than most bioadsorbents. This study provides a low-cost and efficient method for the preparation of adsorbents from shrimp processing waste to remove fluoride from wastewater.

show abstract

Section: Introductionmentioning

confidence: 99%

Removal of Fluoride from Aqueous Solution Using Shrimp Shell Residue as a Biosorbent after Astaxanthin Recovery

Zhang

Liao

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

“…The destructive techniques include photocatalysis [ 19 ] such as photocatalytic ozonation [ 20 ] and photocatalytic decomposition [ 21 ], sonolysis [ 22 ], hydrothermal alkaline treatment [ 23 ], electrochemical oxidation [ 24 ], among other techniques that result in the reduction of the chain length, and the break of C–F bond. However, no attention has been given to the release of fluorine (F − ) from destructive processes [ 25 ], which can compromise microorganisms in aquatic and environmental matrices. Actually, F − induces toxicity to bacteria at levels of 0.1–1.9 mg/L by inhibiting and interfering metabolic activities [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of PFDA on the nutrient removal from wastewater by hydrogels containing microalgae-bacteria

Morán-Valencia

Huerta-Aguilar

Mora

et al. 2023

Heliyon

View full text Add to dashboard Cite

Defluoridation by positive single-pulse current electrocoagulation from photovoltaic wastewater: Energy consumption assessment and mechanism analysis

Wu,

Shi,

Sun

et al. 2024

Chemosphere

View full text Add to dashboard Cite

Aluminum-based electrocoagulation for residual fluoride removal during per- and polyfluoroalkyl substances (PFASs) wastewater treatment

Cited by 10 publications

References 65 publications

Removal of Fluoride from Aqueous Solution Using Shrimp Shell Residue as a Biosorbent after Astaxanthin Recovery

Removal of Fluoride from Aqueous Solution Using Shrimp Shell Residue as a Biosorbent after Astaxanthin Recovery

Influence of PFDA on the nutrient removal from wastewater by hydrogels containing microalgae-bacteria

Defluoridation by positive single-pulse current electrocoagulation from photovoltaic wastewater: Energy consumption assessment and mechanism analysis

Contact Info

Product

Resources

About