Adsorption of methylene blue from textile industrial wastewater using activated carbon developed from Rumex abyssinicus plant

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: April 3, 2023

Abstract Methylene blue (MB) is abundantly found in textile industrial effluent which can cause severe health problems for public and environmental ecology. Therefore, this study aimed to remove MB from wastewater using the activated carbon developed Rumex abyssinicus . The adsorbent was chemical thermal methods, then it characterized by SEM, FTIR, BET, XRD, pH zero-point charge (pHpzc). adsorption isotherm kinetics were also investigated. experimental design composed of four factors at three levels (pH (3, 6, 9), initial concentration (100, 150, 200 mg/L), dosage (20, 40, 60 mg/100 mL), contact time min)). interaction evaluated response surface methodology. characterization a have multiple functional groups (FTIR), an amorphous structure (XRD), crack with ups down morphology (SEM), pHpzc 5.03 high BET-specific area 2522 m 2 /g. optimization dye removal carried out Response Surface methodology coupled Box Behnken approach. maximum efficiency 99.9% recorded optimum conditions 9, 100 mg/L, mL, min. Among models, Freundlich model best fit value R 0.99 showing process heterogeneous multilayer whereas revealed that pseudo-second-order 0.88. Finally, quite promising be used level

Language: Английский

---

Methylene blue adsorption from aqueous solution using activated carbon of spathodea campanulata

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101910 - 101910

Published: Feb. 10, 2024

This study aimed to determine the effectiveness of Spathodea Campanulata derived activated carbon in removing methylene blue (MB) from wastewater. The was prepared through chemical impregnation with H3PO4 and thermal activation at 500 °C for 2 h. adsorption experiments were optimized using 24 full factorial designs, considering pH, contact time, initial MB concentration, adsorbent dosage as parameters. characterization revealed favorable properties, including multiple surface functional groups, a maximum specific area 1054 m2/g, highly porous morphology. conditions achieved removal efficiency 99.95%, pH 9, time 120 min, dye concentration 90 mg/L, an 0.2 g/100 mL being most effective Freundlich isotherm model provided best fit experimental data, indicating heterogeneous multilayer surface. kinetics indicated that chemisorption primary mechanism. In conclusion, based could serve cost-effective aqueous solutions

Language: Английский

---

Adsorptive removal of malachite green dye from aqueous solution using Rumex abyssinicus derived activated carbon

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Sept. 7, 2023

Abstract The potential for malachite green dye saturated effluent to severely affect the environment and human health has prompted search effective treatment technologies. Thus, this study was conducted with goal of developing activated carbon from Rumex abyssinicus adsorptive removal an aqueous solution. Unit operations such as drying, size reduction, impregnation H 3 PO 4 , thermal activation were used during preparation carbon. An experiment designed considering four main variables at their respective three levels: initial concentration (50, 100, 150 mg/L), pH (3, 6, 9), contact period (20, 40, 60 min), adsorbent dosage (0.05, 0.01, 0.15 g/100 mL). Optimization batch adsorption process carried out using Response Surface methodology's Box Behnken approach. characterization described by SEM surface morphology cracks highly porous morphology, FTIR multi-functional groups O–H 3506.74 cm −1 3290.70 carbonyl group stretching aldehyde ketone (1900–1700 ), motion aromatic ring C=C (1543.12 –C–H (1500–1200 vibrational –OH (1250.79 C–O–C (1049.32 pHpzc 5.1, BET specific area 962.3 m 2 /g, XRD presence amorphous structure. maximum minimum efficiencies 99.9% 62.4% observed experimental conditions (100 mg/L, 0.10 mg/100 mL, 40 min) 3, 20 respectively. Langmuir, Freundlich, Toth, Koble-Corrigan models evaluate data, in which model found be best fit highest value R 0.998. In addition this, kinetic studies undertaken pseudo-first-order, pseudo-second-order, intraparticle diffusion, Boyd models, a result, pseudo-second-order proved have better among models. kinetics isotherm analysis revealed that nature homogenous monolayer surfaces driven chemosorption. Furthermore, thermodynamics feasible, spontaneous, endothermic. On other hand, reusability depicted fact can utilized five cycles negligible drop 99.9 95.2%. Finally, low-cost, environmentally benign, high capacity material derived stem could treat industrial effluents.

Language: Английский

---

Advancing the development of nanocomposite adsorbent through zinc-doped nickel ferrite-pinecone biochar for removal of chromium (VI) from wastewater

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168136 - 168136

Published: Nov. 2, 2023

Leather and textile industrial effluents are the main disseminating routes for chromium contamination of water bodies, causing adverse impacts on public environmental health. The attempt to remediate through conventional wastewater treatment methods is inefficient. Therefore, this study aims synthesize zinc-doped nickel ferrite pinecone biochar (Zn-NiF@PBC) nanocomposite removal from systems. Zn-NiF@PBC was synthesized via co-precipitation method. properties (Zn-NiF) were effectively modified by blending with at 1, 5, 10, 15 % (w/w) which successfully embedded Zn-Ni nanoparticles. This characterized confirmed typical adsorbent such as a high surface area 104 m2/g, conducive pore volume 0.117 cm3/g size 3.41 nm (BET), interactive multi-functional groups (FTIR), charge determination (pHpzc,), crystalline structure (XRD) very rough morphology (SEM). maximum adsorption found be 95 specific experimental condition pH 3, dose 1 g/50 mL, contact time 120 min, initial concentration 100 mg/L. data best fitted Langmuir isotherm R2 0.98 indicating process homogeneous monolayer whereas kinetics resembling second-order kinetic 0.99. Moreover, thermodynamics spontaneous, endothermic, increased change in entropy. Finally, regeneration effective up five 5 cycles but gradually degrading terms efficiency after 3 cycles. In general, can huge potential scale-up extend other pollutants clear-up.

Language: Английский

---

Utilization of biochar for remediation of heavy metals in aqueous environments: A review and bibliometric analysis

Heliyon, Journal Year: 2024, Volume and Issue: 10(4), P. e25785 - e25785

Published: Feb. 1, 2024

Biochar usage for removing heavy metals from aqueous environments has emerged as a promising research area with significant environmental and economic benefits. Using the PICO approach, question aimed to explore using biochar remove media. We merged data Scopus Web of Science Core Collection databases acquire comprehensive perspective subject. The PRISMA guidelines were applied establish search parameters, identify appropriate articles, collect bibliographic information publications between 2010 2022. bibliometric analysis showed that biochar-based metal remediation is field increasing scholarly attention. removal Cr(VI), Pb(II), Cd(II), Cu(II) was most studied among metals. identified five main clusters centered on adsorption, water treatment, adsorption models, analytical techniques, hydrothermal carbonization by performing keyword co-occurrence analysis. Trending topics include reusability, modification, acid mine drainage (AMD), wastewater hydrochar. reutilization metal-loaded spent includes transforming it into electrodes supercapacitors or stable catalyst materials. This study provides overview in aquatic highlights knowledge gaps future directions.

Language: Английский

---

Waste biomass derived chitosan-natural clay based bionanocomposites fabrication and their potential application on wastewater purification by continuous adsorption: A critical review

South African Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: 48, P. 214 - 236

Published: Feb. 10, 2024

As a result of rapid urbanization and the luxurious lifestyle overgrowing population this planet, currently, consumers are tremendously dependent upon various types industrial productions to maintain their daily life demands. Therefore hasty fluctuating technologies bulky production create colossal amount wastewater every moment which is usually loaded with hazardous toxicants that could not only damage ecology but also hamper public health safety very harshly. Thus, sustainable eco-friendly cost-effective technique crucial need for effective removal these from real-time protect environmental pollution. Whereas continuous mode adsorption by fixed bed column has widely been considered as most simple, cost-effective, ecofriendly technique. Lately, activated chitosan-modified natural clay based nanocomposites have frequently developed due greater availability, easiness fabrication, effectiveness, efficiency biodegradability multifunctional bionanocomposites/adsorbents. Additionally, specific new class biopolymeric exhibits sensational knock regarding performance aqueous solutions around∼99%. However, review article recapitulates noteworthy information about potential fabrication routes characterization techniques chitosan-clay bionanocomposites. Also against immerging bulk scale significant accepted method namely adsorption. A squat overview chemical activation waste biomass shell-derived chitosan modification clay, along interaction during compounding. The possible mechanism elimination contaminants including all chemisorption, multi/monolayer physisorption interparticular diffusion mathematical modellings presented. Future research route suggested technological challenges commonly come across in enactment.

Language: Английский

---

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(5)

Published: May 1, 2024

Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods remove dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, demonstrate high efficiency in dye removal. Biochar, charcoal-like material derived biomass pyrolysis, offers advantages such as low cost, eco-friendliness, reusability. Beyond its role sustainable soil remediation, proves effective removing wastewater after undergoing physical or chemical modification. Acid–base activation metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common for production modification, impacts raw materials, pyrolysis temperature, heating rate residence time. It further elucidates mechanism removal assessing factors influencing efficiency, including feedstock, pH, particle size, initial concentration, dosage reaction explores challenges, opportunities, reusability regeneration treating also discusses recent advances using adsorption-based biochar. The ultimately advocates enhancing performance through post-modification.

Language: Английский

---

Simultaneous removal of Ni2+ and Congo red from wastewater by crystalline nanocellulose - Modified coal bionanocomposites: Continuous adsorption study with mathematical modeling

Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 26, P. 101244 - 101244

Published: June 17, 2024

Language: Английский

---

Adsorption of Black MNN reactive dye from tannery wastewater using activated carbon of Rumex Abysinicus

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2023, Volume and Issue: 151, P. 105138 - 105138

Published: Sept. 17, 2023

Background A high concentration of Black MNN reactive dye in untreated tannery wastewater can cause adverse effects on public health and environmental sustainability. Therefore, this study aimed to investigate the adsorptive performance Rumex Abyssinicus-based activated carbon (RAAC) remove from wastewater. Method The stem Abyssinicus was impregnated with 50 % diluted phosphoric acid at ratio 1:3 (w/w biomass acid) then it carbonized muffle furnace 600°C. Box-Behnken experimental design 34 used optimize removal efficiencies under response surface methodology. Significant findings Characteristics adsorbent were described by SEM for morphology cracks, FTIR spectrometry multi-functional groups (OH 3443.08 cm−1, aromatic C = 1633.78 vibrational stretching motion -OH 1205.65 cm−1and CO-C 1045.46 cm−1), BET specific area 3619.7 m2/g, X-RD amorphous structure. maximum adsorption 99.9 observed conditions 150 mg/L, 0.25 mg/100 mL, pH 2, 90 min. data evaluated terms Langmuir, Freundlich, Temkin, Spis isotherms which showed Langmuir model found be best fit R2 0.99. This shows that is homogeneous monolayer. Furthermore, kinetic confirms Pseudo second-order describes Finally, statistical analysis values are almost same as predicted indicated Adjusted 0.99 0.97. In conclusion, a good precursor material development remediate industrial municipal

Language: Английский

---

Hexavalent chromium adsorption from aqueous solution utilizing activated carbon developed from Rumex abyssinicus

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102274 - 102274

Published: May 15, 2024

The indiscriminate release of chromium-saturated effluent into water bodies has raised concerns regarding its effect on human health and environmental ecology. Therefore, this research aimed to remove hexavalent chromium from an aqueous solution utilizing activated carbon developed Rumex abyssinicus. adsorbent was prepared through chemical impregnation with H3PO4 then thermally at 500 for 2 h. optimization the adsorption experiments performed using Box‒Behnken approach response surface methodology. characterization revealed good quality in terms amorphous structure, maximum specific area 1722.9 m2/g porous surface. Furthermore, results showed that a removal efficiency 95.97% attained optimum working pH 3, contact time 60 min, initial concentration 70 mg/L dosage 0.6 mg/100 mL. Langmuir isotherm model found have best fit experimental data. Moreover, kinetics study pseudo-second-order data best, indicating occurrence chemisorption. Overall, suggested abyssinicus could be effective removing solutions.

Language: Английский

---