Elsevier eBooks, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Results in Engineering, Год журнала: 2024, Номер 22, С. 102073 - 102073
Опубликована: Апрель 3, 2024
To address environmental pollution caused by dyes and heavy metals, it is crucial to fabricate effective adsorbent material remove contaminants from the environment. In this research, a biogenic-assisted treatment was applied kaolin clay eliminate arsenic ions (As(V)) malachite green (MG) using an adsorption technique. An environmentally friendly ultrasonic method used incorporate Pterocarpus mildraedii into mesoporous structure of (PMKC) with unique flake-like morphology characterized hexagonal structures formed quartz kaolin. Various analytical techniques were employed analyze functional groups, crystallographic structures, surface properties PMKC. The findings reveal that PMKC, eco-friendly adsorbent, effectively removed As(V) MG wastewater under specific conditions: solution pH 6, PMKC dosage 40 mg/L, contact time 60 min, initial concentration As(V)/MG 100 temperature °C. Furthermore, exhibited high capacities 337.22 mg/g towards 274.73 MG. Dubinin-Radushkevich pseudo-first-order models found best describe experimental data obtained isotherm kinetic studies. Because can be reused remains stable for up ten cycles, holds promise as valuable removing dye metal pollutants.
Язык: Английский
Процитировано
22
Discover Water, Год журнала: 2024, Номер 4(1)
Опубликована: Апрель 24, 2024
Abstract This study aims to explore technological advances and prospects in phenol treatment by providing a detailed bibliometric survey of wastewater applications, highlighting innovative research. Using the Web Science database, we identified 79,104 articles from 2003 2023, later refined 1848. The keywords were used for initial search: “phenol”, “wastewater”, “degradation”, “treatment” “removal”. bibliographic review details occurrence journals, authors, newspapers, countries, institutions, keywords, highly cited articles, prominent predominant research fields. In particular, field “Engineering” was responsible 32% published followed “Ecology Environmental Sciences” (25%) “Chemistry” (12%). addition, keyword analysis revealed five major groups clusters that indicate where is progressing. aspect crucial understanding evolution perspectives interests over time. Therefore, future should prioritize feedstock diversification. focus essential address significant challenges, such as production costs, stability, durability processes. Graphical
Язык: Английский
Процитировано
17
Journal of Water Process Engineering, Год журнала: 2024, Номер 58, С. 104718 - 104718
Опубликована: Янв. 4, 2024
Язык: Английский
Процитировано
12
Results in Engineering, Год журнала: 2024, Номер 22, С. 102051 - 102051
Опубликована: Март 22, 2024
The presence of toxic pollutants in the aquatic environment is a significant environmental concern that requires development effective methods for their removal. This study focuses on applying perylene and triazine-based porous organic polymer (PT-POP) to effectively eliminate hazardous from industrial settings. Specifically, PT-POP was synthesized using two monomers, namely 3,4,9,10 perylenetetracarboxylic dianhydride (PTCDA) 2,4,6 tris(hydrazino)-s-triazine (THTZ). resulting has outstanding adsorption performance high chemical thermal stability, making it an attractive adsorbent material. Based thermogravimetric analysis, been confirmed thermally stable. aromatic rings responsible extraordinary stability polymer. Then, cationic Nile blue anionic Direct Fast Scarlet 4BS (DFS-4BS) studied. optimization process involves adjusting several factors, including temperature, concentration, pH, time, dosage. highest capacities (qM) dye DFS-4BS were 280.16 mg. g−1 87.50 g−1, respectively. behavior best fits pseudo-second-order kinetic model, Langmuir isotherm showed most agreement with isotherms both. thermodynamic shows both dyes spontaneous endothermic, as evidenced by negative value ΔG positive ΔH. findings show more inclined toward due its surface charge.
Язык: Английский
Процитировано
12
Results in Engineering, Год журнала: 2024, Номер 22, С. 102220 - 102220
Опубликована: Май 4, 2024
The groundwater (GW) of Bangladesh is predominantly contaminated with arsenic (As) and iron (Fe) which has a bad impact on human health. We tried to remove these elements easily available mahogany-fruit (Swietenia mahagoni) husk charcoal (MHC) banana (Musa acuminata) peduncle (BPC). trial was implemented 3 replications throughout the research. sampled GW contained 0.06 mg As L-1 4.83 Fe L-1. Firstly, pH 3, 5, 7, 9 250 dose. MHC removed almost 91.05% at 5.0, BPC 86.67% 9. However, in case Fe, 100% 7 9; same quantity Secondly, contact times were 0, 10, 20, 40 minutes dose 7.0. maximum removal 5 minutes. pseudo-first-order kinetic, pseudo-second-order intra-particle diffusion models considered. result showed that rate adsorption followed kinetic model. Lastly, adsorbent doses 50, 150, 250, 350 At highest 79.47% for MHC. Similarly, values 79.29% BPC, indicating are good heavy metals removal.
Язык: Английский
Процитировано
9
Results in Engineering, Год журнала: 2024, Номер 23, С. 102600 - 102600
Опубликована: Июль 27, 2024
This work reports on CaMgAl-layered double hydroxide (LDH) based red mud (RM) composite prepared via a co-precipitation method, characterized by transmission electron microscopy (TEM), powder X-ray diffraction patterns (XRD), field-emission scanning (SEM), energy dispersive spectroscopy (EDS), Brunauer-Emmett-Teller analysis (BET), and Fourier transform infrared spectra (FTIR) subsequently used for elimination of ciprofloxacin (CIP) from an aqueous solution in batch mode experiments. Langmuir isotherm model provided better fit CIP adsorption onto CaMgAl/RM composites than Freundlich model; indicating monolayer phenomena. Pseudo-second-order kinetic models describe the kinetics while mechanisms were controlled external mass transfer intra-particle diffusion. Thermodynamic indicated that CaMgAl-LDH/RM was exothermic spontaneous nature. The adsorbent exhibited superior affinity towards which yielded maximum capacity up to 138 mg/g. higher removal efficiency (89.45 %) reached under best conditions (pH 7, agitation speed 150 rpm, dosage 0.5 g/100 ml, concentration contaminant 70 ppm, 90 min contact time). Moreover, synthesized can be recovered after six consecutive regeneration cycles with minimal reduction ability 31 %. In conclusion, this study demonstrated could promising removing antibiotics wastewater.
Язык: Английский
Процитировано
7
Chemosphere, Год журнала: 2024, Номер unknown, С. 143373 - 143373
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
7
Results in Engineering, Год журнала: 2024, Номер 21, С. 101898 - 101898
Опубликована: Фев. 8, 2024
The innovative utilization of compostable waste for synthesizing eco-enzymes presents a novel approach to textile wastewater treatment. In this study, we synthesized from banana, pineapple, and orange fruit peels characterized their biocatalytic antimicrobial attributes. possess noteworthy protease, lipase, amylase activity conducive one-way analysis variance (ANOVA), revealed significant differences among derived different (p < 0.05). Although all demonstrated attributes, peel-derived exhibited the most potent against both gram-positive gram-negative bacterial strains. Besides, when subjected eco-enzymes, showed an 80–85% decrease in biological oxygen demand (BOD), 81–85% reduction chemical (COD), 35–37% total dissolved solids (TDS), 55–60% suspended (TSS), substantial pH, enhancement (DO) content after 100 h Additionally, ANOVA on efficacy treating by conventional treatment method These findings underscore potential eco-enzyme produce distinctive environmentally beneficial results
Язык: Английский
Процитировано
6
Results in Engineering, Год журнала: 2024, Номер 22, С. 102081 - 102081
Опубликована: Апрель 12, 2024
In this study, an aloe vera biomass-based adsorbent was developed for the adsorptive removal of pharmaceutical waste from contaminated water. Adsorbent prepared stem by chemical (H3PO4 and NaOH) activation methods. Batch adsorption experiments were carried out at varying amounts weight (0.2–1g), pH (3–9), contact time (10–90 min), temperature (30–70 °C). The signaled different analytical instruments, such as Fourier Transform Infrared (FT-IR), thermogravimetric analysis (TGA/DTG), X-ray diffraction (XRD). reveals highest efficiency 91.92 % values 5.8. This corresponds to point zero charge (Pzc) value adsorbent. Beyond Pzc adsorbent, percent decreased due electrostatic repulsion between negatively charged amoxicillin molecule surface. It noted that decreases with increasing temperature, suggesting over activated is exothermic process. a case, recorded operating 30 °C, 5.8, dose 1g, min. Fitting experimental data kinetic isotherm models indicated well fitted pseudo second order (R2 = 0.999) Freundlich 0.998) models, respectively. negative enthalpy Gibbs free energy showed process in nature.
Язык: Английский
Процитировано
6
Results in Engineering, Год журнала: 2023, Номер 20, С. 101635 - 101635
Опубликована: Дек. 1, 2023
Mono-component adsorption of Co2+ ions from simulated industrial water was investigated by using cow bone (CB), char (CBC), and activated carbon (ACBC) adsorbents synthesized raw as the precursor. The resulting prepared adsorbent materials were then characterized analytical methods such as: zeta potential measurements, BET surface area, FTIR, SEM, EDS, XRD analysis. For all adsorbents, main compositions mesopores with presence CC, PO32−, CO32 O–H bonds signifying hydroxyapatite nature adsorbents. isoelectric point (pHIEP) ACBC obtained to be 3.59 (lowest among adsorbents) thereby that ACBC's electrostatic force attraction relatively higher between its surface. study showed pseudo second-order kinetic model had best correlation for experimental data each adsorbent, inferring rate-controlling step during onto is chemisorption. Sips isotherm excellently predicted on CB while Langmuir fitted equilibrium CBC, excellent coefficients, maximum capacities, qmax, 52.50, 58.80, 64.50 mg g−1 CB, respectively. thermodynamic properties process endothermic, non-spontaneous endogenic being exothermic CBC in addition having physisorption properties.
Язык: Английский
Процитировано
13