As(III) and As(V) removal by using iron impregnated biosorbents derived from waste biomass of Citrus limmeta (peel and pulp) from the aqueous solution and ground water

Verma, Lata; Siddique, Mohd Adil; Singh, Jiwan; Bharagava, Ram Naresh

doi:10.1016/j.jenvman.2019.109452

Cited by 64 publications

(17 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The chemo-tailored biomasses were modified through iron impregnation at pH range from1 to 9 as in step 3 in order to further improve the removal capacity of biomasses following the method described by 22 . Iron impregnation approach has been well implemented to enhance the sorption capacity and affiliated removal efficiency for As(III) in different studies 22 , 23 . After iron impregnation, chemo-tailored FFB provides chemo-tailored and iron-impregnated free fungal biomass (CFB) while chemo-tailored IFB yields immobilized and iron-impregnated fungal biomass (IIFB).…”

Section: Methodsmentioning

confidence: 99%

ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system

Tripathi

Ranjan

Verma

et al. 2022

Sci Rep

View full text Add to dashboard Cite

The iron impregnated fungal bio-filter (IIFB) discs of luffa sponge containing Phanerochaete chrysosporium mycelia have been used for the removal of As(III) from water. Two different forms of same biomass viz. free fungal biomass (FFB) and modified free fungal biomass (chemically modified and iron impregnated; CFB and IIFB) have been simultaneously investigated to compare the performance of immobilization, chemo-tailoring and iron impregnation for remediation of As(III). IIFB showed highest uptake capacity and percentage removal of As(III), 1.32 mg/g and 92.4% respectively among FFB, CFB and IIFB. Further, the application of RSM and ANN-GA based mathematical model showed a substantial increase in removal i.e. 99.2% of As(III) was filtered out from water at optimised conditions i.e. biomass dose 0.72 g/L, pH 7.31, temperature 42 °C, and initial As(III) concentration 1.1 mg/L. Isotherm, kinetic and thermodynamic studies proved that the process followed monolayer sorption pattern in spontaneous and endothermic way through pseudo-second order kinetic pathway. Continuous mode of As(III) removal in IIFB packed bed bioreactor, revealed increased removal of As(III) from 76.40 to 88.23% with increased column height from 5 to 25 cm whereas the removal decreased from 88.23 to 69.45% while increasing flow rate from 1.66 to 8.30 mL/min. Moreover, the IIFB discs was regenerated by using 10% NaOH as eluting agent and evaluated for As(III) removal for four sorption–desorption cycles, showing slight decrease of their efficiency by 1–2%. SEM–EDX, pHzpc, and FTIR analysis, revealed the involvement of hydroxyl and amino surface groups following a non-electrostatic legend exchange sorption mechanism during removal of As(III).

show abstract

Section: Methodsmentioning

confidence: 99%

ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system

Tripathi

Ranjan

Verma

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Since the infrared absorption peaks of metal oxides often appear at low wavenumbers and are not very characteristic, 3 the infrared spectrum absorption peaks before adsorption are dominated by activated carbon: corresponding to the OH-stretching vibration peak at 3444 cm −1 ; corresponding to the antisymmetric-stretching vibration peak and symmetric-stretching vibration peak of –COO– in carboxylate at 1644 cm −1 and 1540 cm −1 , respectively; corresponding to the C–OH-stretching vibration peak at 1067 cm −1 ; and corresponding to metal-oxide M-O vibrations at 675 cm −1 . The infrared spectrum of ZIC after adsorption showed that the OH-stretching vibration peak moved to 3428 cm −1 , 51 the antisymmetric-stretching vibration peak and the symmetric-stretching vibration peak of –COO– moved to 1626 cm −1 and 1505 cm −1 , 52 respectively, the C–OH-stretching vibration peak moved to 1119 cm −1 , 53 and the M-O vibration peak moved to 651 cm −1 . 50 Comparing the infrared spectra before and after the adsorption of Sb( v ), it can be found that the peak strength at 1067 cm −1 is significantly weakened, and the peak shape changes, indicating that chemical bonds such as –COOH or C–OH in the activated carbon may participate in the Sb adsorption process.…”

Section: Resultsmentioning

confidence: 98%

Synthesis of nano-zirconium-iron oxide supported by activated carbon composite for the removal of Sb(v) in aqueous solution

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Cholesterol-functionalized magnetic nanoparticles can be obtained using APTES and cholesteryl chloroformate modification [ 245 ]. Verma et al [ 246 ] synthesized magnetic biosorbents from citrus (peel and pulp) biomass waste, for wastewater treatment. Samples were synthesized at 500 °C, and both As(III) and As(V) from groundwater were removed.…”

Section: Recent Advancements In Synthesis Methods Of Magnetic Adsorbentsmentioning

confidence: 99%

Magnetic Adsorbents for Wastewater Treatment: Advancements in Their Synthesis Methods

et al. 2022

View full text Add to dashboard Cite

The remediation of water streams, polluted by various substances, is important for realizing a sustainable future. Magnetic adsorbents are promising materials for wastewater treatment. Although numerous techniques have been developed for the preparation of magnetic adsorbents, with effective adsorption performance, reviews that focus on the synthesis methods of magnetic adsorbents for wastewater treatment and their material structures have not been reported. In this review, advancements in the synthesis methods of magnetic adsorbents for the removal of substances from water streams has been comprehensively summarized and discussed. Generally, the synthesis methods are categorized into five groups, as follows: direct use of magnetic particles as adsorbents, attachment of pre-prepared adsorbents and pre-prepared magnetic particles, synthesis of magnetic particles on pre-prepared adsorbents, synthesis of adsorbents on preprepared magnetic particles, and co-synthesis of adsorbents and magnetic particles. The main improvements in the advanced methods involved making the conventional synthesis a less energy intensive, more efficient, and simpler process, while maintaining or increasing the adsorption performance. The key challenges, such as the enhancement of the adsorption performance of materials and the design of sophisticated material structures, are discussed as well.

show abstract

As(III) and As(V) removal by using iron impregnated biosorbents derived from waste biomass of Citrus limmeta (peel and pulp) from the aqueous solution and ground water

Cited by 64 publications

References 47 publications

ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system

ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system

Synthesis of nano-zirconium-iron oxide supported by activated carbon composite for the removal of Sb(v) in aqueous solution

Magnetic Adsorbents for Wastewater Treatment: Advancements in Their Synthesis Methods

Contact Info

Product

Resources

About