Mechanistic evaluation of factors affecting compound loading into ion-exchange fibers

Hänninen, Kaisa; Kaukonen, Ann Marie; Murtomäki, Lasse; Hirvonen, Jouni

doi:10.1016/j.ejps.2007.04.007

Cited by 20 publications

(5 citation statements)

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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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“…Various technologies, presented in Table 1, are currently available to remove fluoride from water, such as coagulation and precipitation [30,39,40,41,42,43], membrane processes [44,45,46,47,48,49,50,51,52], electrochemical treatments [26,53,54,55,56,57,58,59,60,61,62], ion-exchange and its modification [63,64,65,66,67,68,69], but the adsorption process is generally accepted as the cheapest and most effective method for removal fluoride from water [20,25,29,70,71,72,73]. …”

Section: Introductionmentioning

confidence: 99%

A Review on Adsorption of Fluoride from Aqueous Solution

Ravančić²,

2014

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Fluoride is one of the anionic contaminants which is found in excess in surface or groundwater because of geochemical reactions or anthropogenic activities such as the disposal of industrial wastewaters. Among various methods used for defluoridation of water such as coagulation, precipitation, membrane processes, electrolytic treatment, ion-exchange, the adsorption process is widely used. It offers satisfactory results and seems to be a more attractive method for the removal of fluoride in terms of cost, simplicity of design and operation. Various conventional and non-conventional adsorbents have been assessed for the removal of fluoride from water. In this review, a list of various adsorbents (oxides and hydroxides, biosorbents, geomaterials, carbonaceous materials and industrial products and by-products) and its modifications from literature are surveyed and their adsorption capacities under various conditions are compared. The effect of other impurities on fluoride removal has also been discussed. This survey showed that various adsorbents, especially binary and trimetal oxides and hydroxides, have good potential for the fluoride removal from aquatic environments.

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“…Aromatic groups and conjugated systems are strong hydrophobic structures, and they may have special affinity for the IEFs. Reports in the literature recommend that the loading amount increased with increasing drug lipophilicity, and this view might be one sided. For example, the log P of ambroxol was highest in the secondary amines (Table ); however, its loading amount was lowest.…”

Section: Resultsmentioning

confidence: 99%