Adsorptive removal studies of fluoride in aqueous system by bimetallic oxide incorporated in cellulose

Raghav, Sapna; Nehra, Sapna; Kumar, Dinesh

doi:10.1016/j.psep.2019.05.028

Cited by 26 publications

(6 citation statements)

References 68 publications

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“…Several conventional techniques may be pointed here, such as adsorption [ 61 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 86 , 87 , 88 , 89 , 90 , 91 ], chemical precipitation [ 86 , 92 ], coagulation and precipitation methods [ 72 , 93 , 94 , 95 , 96 , 97 , 98 , 99 ], ion exchange [ 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 ], and electrocoagulation [ 69 , 77 , 86 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 ], as well as more advanced membrane processes [ 83 , 124 …”

Section: Selected Types Of Reagents For Fluoride Removalmentioning

confidence: 99%

Management of Solid Waste Containing Fluoride—A Review

2022

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Technological and economic development have influenced the amount of post-production waste. Post-industrial waste, generated in the most considerable amount, includes, among others, waste related to the mining, metallurgical, and energy industries. Various non-hazardous or hazardous wastes can be used to produce new construction materials after the “solidification/stabilization” processes. They can be used as admixtures or raw materials. However, the production of construction materials from various non-hazardous or hazardous waste materials is still very limited. In our opinion, special attention should be paid to waste containing fluoride, and the reuse of solid waste containing fluoride is a high priority today. Fluoride is one of the few trace elements that has received much attention due to its harmful effects on the environment and human and animal health. In addition to natural sources, industry, which discharges wastewater containing F− ions into surface waters, also increases fluoride concentration in waters and pollutes the environment. Therefore, developing effective and robust technologies to remove fluoride excess from the aquatic environment is becoming extremely important. This review aims to cover a wide variety of procedures that have been used to remove fluoride from drinking water and industrial wastewater. In addition, the ability to absorb fluoride, among others, by industrial by-products, agricultural waste, and biomass materials were reviewed.

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Section: Selected Types Of Reagents For Fluoride Removalmentioning

confidence: 99%

Management of Solid Waste Containing Fluoride—A Review

2022

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“…Doping of biopolymers with metals and metal oxides lead to enhanced porosity in their structures leading to improvement in the adsorption capacities. Many workers have reported similar kind of composites for efficient removal of fluoride ions [26][27][28] . Our research group has reported various mesoporous composites for the adsorptive removal of fluoride 5,9 , dyes [10][11][12][13] , arsenic 8 and Cr(VI) 14 .…”

Section: Introductionmentioning

confidence: 99%

“…Many workers have reported similar kinds of composites for the efficient removal of fluoride ions. 26–28 Our research group has reported various mesoporous composites for the adsorptive removal of fluoride, 5,9 dyes, 10–13 arsenic 8 and Cr( vi ). 14 In the present study, a mesoporous composite of cellulose has been prepared by co-precipitation of iron and aluminium in the cellulose matrix.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Fe–Al-doped cellulose for the efficient removal of reactive dyes

et al. 2022

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“…F-containing wastewater can be treated by chemical precipitation method [20,21], coagulation and precipitation method [22,23], adsorption method [24][25][26][27][28][29], electrocoagulation method [20,[30][31][32][33], reverse osmosis method [34][35][36], and ion exchange method [37,38]. Generally, chemicals such as CaCl 2 and CaO are added for precipitating fluoride in wastewater.…”

Section: Introductionmentioning

confidence: 99%

Precipitation Methods Using Calcium-Containing Ores for Fluoride Removal in Wastewater

et al. 2019

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F-containing wastewater does great harm to human health and the ecological environment and thus needs to be treated efficiently. In this paper, the new calcium-containing precipitant calcite and aided precipitant fluorite were adopted to purify F-containing wastewater. Relevant reaction conditions, such as reaction time, oscillation rate, dosage of hydrochloric acid, calcite dosage and the assisting sedimentation performance of fluorite, and action mechanism are analyzed. The experiment showed that the removal rate of fluoride in simulated wastewater reached 96.20%, when the reaction time, the dosage of calcite, the dosage of 5% dilute hydrochloric acid, and the oscillation rate was 30 min, 2 g/L, 21.76 g/L, and 160 r/min, respectively. Moreover, the removal rate of fluoride in the actual F-containing smelting wastewater reaches approximately 95% under the optimum condition of calcite dosage of 12 g/L, reaction time of 30 min, and oscillation rate of 160 r/min. The addition of fluorite significantly improves the sedimentation performance of the reactive precipitates. The experimental results showed that calcite and fluorite can effectively reduce the concentration of fluoride ions in F-containing wastewater and solve the problem of slow sedimentation of reactive precipitates.

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Adsorptive removal studies of fluoride in aqueous system by bimetallic oxide incorporated in cellulose

Cited by 26 publications

References 68 publications

Management of Solid Waste Containing Fluoride—A Review

Management of Solid Waste Containing Fluoride—A Review

Mesoporous Fe–Al-doped cellulose for the efficient removal of reactive dyes

Precipitation Methods Using Calcium-Containing Ores for Fluoride Removal in Wastewater

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