Thermodynamics and kinetics of the removal of manganese(II) ions from aqueous solutions by white rice husk ash

Tavlieva, Mariana P.; Genieva, Svetlana; Georgieva, Velyana G.; Vlaev, L. T.

doi:10.1016/j.molliq.2015.08.015

Cited by 57 publications

(37 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The maximum iron removal level achieved with natural adsorbents was 78%, using soybean hulls (SH). Tavlieva et al (2015) used rice husk ash to remove Mn ions in aqueous solutions. The results showed that the Mn removal rate was 26.62%, much lower than that obtained in the present study with modified soybean hulls (SHH).…”

Section: Kinetics Of Fe and Mn Adsorptionmentioning

confidence: 99%

Use of agricultural and agroindustrial residues as alternative adsorbents of manganese and iron in aqueous solution

Furlan¹,

Filho²,

Consolin³

et al. 2018

Rev. ambiente água

View full text Add to dashboard Cite

The increase in the volume of agricultural and agroindustrial waste, associated with improper disposal, is a growing worldwide problem. The recovery of those residues is of crucial importance, since it reduces environmental impacts, protects public health, and allows the addition of value to the materials. One of the ways of exploiting adsorbents is related to the capacity of some wastes to be used as alternative adsorbents in the efficient removal of microcontaminants in aqueous systems. This work assessed the use of agricultural and agroindustrial residues: maize straw, wheat straw, soybean straw and soybean hulls for the production of alternative adsorbents to remove iron (Fe) and manganese (Mn) in water. For each residue investigated, two different polymers were obtained for use as adsorbents, a natural polymer (cellulose/lignin) and an EDTA-modified polymer (ethylenediaminetetraacetic acid). The adsorbents were characterized through FTIR (Fourier transform infrared spectroscopy) and nitrogen content. To evaluate the efficiency of the adsorbents, kinetic tests in batch mode and determination of Lagergren pseudo-first and pseudo-second order kinetic constants were performed. The results found that the modified polymer obtained from soybean hulls (SHE) showed increased Fe (96%) and Mn (88%) removal rate, in which the pseudo-second order kinetic model presented closer results between the experimental adsorption rates and the calculated ones for the two microcontaminants under study. In general, the modified soybean hulls proved to be a promising alternative adsorbent for the removal of iron and manganese in water treatment. Uso de Resíduos Agrícolas e Agroindustriais como AdsorventesAlternativos de manganês e ferro em Sistema Aquoso RESUMO O aumento do volume de resíduos agrícolas e agroindustriais gerados, acompanhados do descarte inadequado dos mesmos é um problema mundial crescente. O aproveitamento desses resíduos é de extrema importância, já que resulta na redução de impactos ambientais, preservação da saúde da população, e permite agregar valor à esses materiais. Uma das formas de aproveitamento está relacionada à capacidade de alguns resíduos serem utilizados como adsorventes alternativos na remoção eficiente de micro-contaminantes em sistemas aquosos. Este trabalho teve como objetivo investigar o uso dos resíduos agrícolas e agroindustriais: palha de milho, palha de trigo, palha de soja e casca de soja para produção de adsorventes alternativos para remoção de ferro (Fe) e manganês (Mn) em água. Para cada resíduo investigado, dois diferentes polímeros foram obtidos para uso como adsorventes, um polímero natural (celulose/lignina) e um polímero modificado com EDTA (ácido etilenodiaminotetraacético). Os adsorventes foram caracterizados por FTIR (espectroscopia de infravermelho por transformada de Fourier) e teor de nitrogênio. Para a avaliação da eficiência dos adsorventes foram realizados testes cinéticos, em regime batelada, e determinação das constantes cinéticas de pseudo-primeira e pseudo-seg...

show abstract

Section: Kinetics Of Fe and Mn Adsorptionmentioning

confidence: 99%

Use of agricultural and agroindustrial residues as alternative adsorbents of manganese and iron in aqueous solution

Furlan¹,

Filho²,

Consolin³

et al. 2018

Rev. ambiente água

View full text Add to dashboard Cite

show abstract

“…(2016) [1][2][3][4][5][6][7][8][9][10][11][12] www.deswater.com doi: 10.1080/19443994.2016.1163512 agricultural waste have been used [8][9][10][11][12][13][14]. For instance, activated carbon has been widely recognized as the oldest and most versatile adsorbent used in wastewater treatment to remove diverse organic and inorganic pollutants due to its large specific surface area, high adsorption capacity, porous structure, and good selective adsorption characteristics, which depend on their precursors as well on the synthesis method [15].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Co2+ ion adsorption behavior on plum stone carbon prepared by a solid-combustion process

Granados-Correa

Sánchez‐Flores

Bulbulian

2016

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R A C TCo 2+ ion adsorption behavior on plum stone (Spondias purpurea) carbon (PSC) prepared by a solid-combustion process in batch mode was studied. The effects of various important adsorption parameters, such as the contact time, cobalt concentration, pH, and temperature were investigated. The as-prepared powders were characterized using X-ray diffraction, scanning electron microscopy, and N 2 physisorption measurements. Porous and amorphous PSC was obtained with a BET-surface area of 286.06 m 2 /g and a maximum Co 2+ ion adsorption capacity of 4.23 mg/g. The kinetic data, analyzed by non-linear regression, obeyed a pseudo-second-order model with intra-particle diffusion as one of the rate determining steps and showed that the equilibrium behavior can be well described by a Langmuir isotherm. The obtained thermodynamics parameters indicate that the adsorption process is endothermic, spontaneous, and has a chemical adsorption mechanism. The present study revealed that the PSC material can be used as an alternative to more costly adsorbents and that the outcome of this study may be helpful in the design of treatment plants for treatment of Co 2+ -rich effluents.

show abstract

“…Manganese is one of the most abundant metals in nature having an essential role for the human body, enzymes activation and for plants growth . It is mostly used in industry, with application in metallurgy, ceramics, dry battery cells, electrical coils, food and pharmaceutical production .…”

Section: Introductionmentioning

confidence: 99%

“…The excessive use of manganese anthropic activities leads to environmental pollution. Untreated effluents from the earlier‐mentioned industries, burning of coal and oil, mine waters represents major sources of water pollution with manganese . Excess manganese in drinking water affects the nervous, endocrine and respiratory systems.…”

Section: Introductionmentioning

confidence: 99%

“…Intake of higher concentrations of manganese causes irreversible neurological disorder, Parkinson syndrome, characterized by tremor, decreased mental status, weakness, muscle pain, apathy, slow speech, rigidity and slow clumsy movement of the arms and legs. High levels of manganese have neurotoxic effects on animals and detrimental effects on plants …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A green approach for treatment of wastewater with manganese using wood ash

Moșoarcă

Vancea

Popa

et al. 2020

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: In the circular economy context, the present article proposes a green technical solution by manganese ions adsorption on oak wood ash and the reuse of the new waste generated by the adsorption process as soil amendment. RESULTS:The influence of the main process variables: pH, adsorbent dose and contact time was investigated for optimal manganese ions adsorption. The highest adsorption efficiency of the wood ash (more than 98%) was recorded at pH 6, adsorbent dose of 10 g L −1 and contact time 15 min. The ion adsorption process is best described by Langmuir isotherm and pseudo second-order kinetic model. Maximum adsorption capacity, 54.94 mg g −1 , is better than other adsorbent materials previously used for manganese adsorption. The exhausted wood ash, resulted after the manganese adsorption was used as soil amendment for barley crop, Hordeum vulgare L. The beneficial effect upon the studied plants was highlighted using the specific parameters: germination percent (up to 10% higher), plant average length (higher by 14-35%), biomass (up to 200%) and relative growth rate (higher by 6-12%) compared to those obtained for the control sample.CONCLUSION: These results show that all the wastes involved have been used successfully and support the proposed ecofriendly technical solution for some industrial wastes management.

show abstract

Thermodynamics and kinetics of the removal of manganese(II) ions from aqueous solutions by white rice husk ash

Cited by 57 publications

References 57 publications

Use of agricultural and agroindustrial residues as alternative adsorbents of manganese and iron in aqueous solution

Use of agricultural and agroindustrial residues as alternative adsorbents of manganese and iron in aqueous solution

Co2+ ion adsorption behavior on plum stone carbon prepared by a solid-combustion process

A green approach for treatment of wastewater with manganese using wood ash

Contact Info

Product

Resources

About