Electrochemical water treatment: Review of different approaches

Journal of Environmental Management, Год журнала: 2025, Номер 373, С. 123911 - 123911

Опубликована: Янв. 1, 2025

Язык: Английский

---

An innovative approach for atrazine electrochemical oxidation modelling: Process parameter effect, intermediate formation and kinetic constant assessment

Chemical Engineering Journal, Год журнала: 2023, Номер 474, С. 146022 - 146022

Опубликована: Сен. 11, 2023

Water reuse for irrigation activities is becoming a crucial worldwide challenge due to the depletion of water sources. Anyway, agricultural drainage can potentially contain dangerous contaminants such as metals, pesticides, and herbicides, including atrazine. To address need agriculture wastewater purification, we investigated atrazine removal from simulated by electro-oxidation using platinum-coated titanium electrodes on lab-scale experimental apparatus. The effects electrolyte composition concentration, i.e. ionic strength applied current density removal, were investigated. results demonstrated that electrochemical oxidation herbicide occurred through two routes, depending presence or absence oxidizing chlorine species. generation intermediates during treatment was monitored quantified evaluating effect an inert (NaClO4) versus oxidizable species (NaCl). In both conditions, five identified, desethyl-atrazine (DEA), hydroxyatrazine (ATZ-OH), desisopropyl-atrazine (DIA) desethyl-desisopropyl-atrazine (DEDIA). A degradation mechanism model describing hydroxyl radicals active contributions at ATZ also proposed. Intermediate evolution profiles suggest be considered series–parallel reaction system. Finally, energy requirement assessment carried out. highest (≅98%) achieved with NaCl = 0.08 M, J 60 A/m−2, EC 5.83 kWh m−3. Results highlight improved when (NaCl) present in solution. Moreover, addition energy-saving strategy. Collectively, technique efficiently treat polluted order meet needs recycling quality reduce resource consumption.

Язык: Английский

---

Trimethoprim removal from wastewater: Adsorption and electro-oxidation comparative case study

Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100433 - 100433

Опубликована: Июль 28, 2023

Trimethoprim (TMP) is among the emerging pollutants that cause harmful effects on aquatic environment and human health if not accurately controlled. This antibiotic one of most regularly administered drugs, thus, its contamination water bodies has received much concern in recent years. In this case study, a comparison between adsorption electrochemical oxidation was carefully performed to identify best treatment for removing TMP from impacted water. Adsorption with commercial activated carbon F400 as an adsorbent showed higher removal efficiencies (70.6%) than natural zeolites (17.6%). The experimental data onto were well-fitted by linear form Langmuir isotherm (R2 = 0.986). values qmax KL 18.40 mg g−1 1.40 L mg−1, respectively. pseudo-second order model provided correlation data. Electrochemical over two platinum-coated titanium electrodes led 70.1% after 330 min treatment. optimal operative conditions achieved at concentration NaCl 0.04 M applied current density 120 A m−2. Cost estimates both technologies indicated comparable operating low density. Each process presents several advantages limitations, choice right approach needs consider different factors, including composition wastewater cost availability resources.

Язык: Английский

---

Mathematical modeling of the anodic oxidation of organic pollutants: a review

Environmental Chemistry Letters, Год журнала: 2024, Номер 22(3), С. 1521 - 1561

Опубликована: Фев. 27, 2024

Язык: Английский

---

Promoting removal of polystyrene microplastics from wastewater by electrochemical treatment

Journal of Water Process Engineering, Год журнала: 2024, Номер 68, С. 106418 - 106418

Опубликована: Окт. 31, 2024

Язык: Английский

---

Degradation of 29 per- and poly-fluoroalkyl substances (PFAS) in water using fenton-assisted electrochemical oxidation process

Separation and Purification Technology, Год журнала: 2025, Номер 362, С. 131908 - 131908

Опубликована: Фев. 2, 2025

Язык: Английский

---

Surface modification of chitin nanofibers with dopamine as efficient nanosorbents for enhanced removal of dye pollution and metal ions

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 253, С. 127113 - 127113

Опубликована: Сен. 27, 2023

Язык: Английский

---

Electrochemical arsenite oxidation for drinking water treatment: Mechanisms, by-product formation and energy consumption

Water Research, Год журнала: 2024, Номер 253, С. 121227 - 121227

Опубликована: Янв. 30, 2024

Язык: Английский

---

Chitosan Supports Boosting NiCo2O4 for Catalyzed Urea Electrochemical Removal Application

Polymers, Год журнала: 2023, Номер 15(14), С. 3058 - 3058

Опубликована: Июль 16, 2023

Currently, wastewater containing high urea levels poses a significant risk to human health. Else, electrocatalytic methodologies have the potential transform present in urea-rich into hydrogen, thereby contributing towards environmental conservation and facilitating production of sustainable energy. The characterization NiCo2O4@chitosan catalyst was performed by various analytical techniques, including scanning electron microscopy (SEM) X-ray photoelectron spectroscopy (XPS). Furthermore, activity electrodes toward removal investigated several electrochemical techniques. As function current density, performance modified surface employed remove using oxidation. Consequently, density measurement 43 mA cm−2 solution 1.0 M KOH. Different kinetic characteristics were investigated, charge transfer coefficient (α), Tafel slope (29 mV dec−1), diffusion (1.87 × 10−5 cm2 s−1), coverage 4.29 10−9 mol cm−2. electrode showed stability whereas it lost 10.4% its initial after 5 h

Язык: Английский

---

Degradation of the commercial Paraquat herbicide by UVA-LED Photo-Electrooxidation utilizing a BDD-Fe system: Multiple response optimization

Water Air & Soil Pollution, Год журнала: 2025, Номер 236(2)

Опубликована: Янв. 11, 2025

Язык: Английский

---