Removal of mercury(II) from wastewater using camel bone charcoal

Hassan, Saad S. M.; Awwad, Nasser S.; Aboterika, Awaad H. A.

doi:10.1016/j.jhazmat.2007.11.003

Cited by 98 publications

(46 citation statements)

References 18 publications

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“…BC predominantly consists of hydoxyapatite [Ca 10 (PO 4 ) 6 (OH) 2 ] [2, [59][60][61]. BC therefore retains fluoride by chemisorption and ion exchange between dissolved F´ions and PO 4 3´.…”

Section: Bone Char-based Filters For F´removalmentioning

confidence: 99%

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Technologies for Decentralized Fluoride Removal: Testing Metallic Iron-based Filters

Ndé-Tchoupé

Crane

Mwakabona

et al. 2015

Water

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Since the realization in the 1930s that elevated fluoride concentrations in drinking water can have detrimental effects on human health, new methods have been progressively developed in order to reduce fluoride to acceptable levels. In the developing world the necessity for filtration media that are both low-cost and sourced from locally available materials has resulted in the widespread use of bone char. Since the early 1990s metallic iron (Fe 0 ) has received widespread use as both an adsorbent and a reducing agent for the removal of a wide range of contaminant species from water. The ion-selectivity of Fe 0 is dictated by the positively charged surface of iron (hydr)oxides at circumneutral pH. This suggests that Fe 0 could potentially be applied as suitable filter media for the negatively charged fluoride ion. This communication seeks to demonstrate from a theoretical basis and using empirical data from the literature the suitability of Fe 0 filters for fluoride removal. The work concludes that Fe 0 -bearing materials, such as steel wool, hold good promise as low-cost, readily available and highly effective decentralized fluoride treatment materials.

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Section: Bone Char-based Filters For F´removalmentioning

confidence: 99%

“…Tseng et al [138] used SW as generator of iron oxides for the "accumulation" of 60 Co (pre-concentration) in environmental monitoring of a nuclear power plant. This demonstrates that this material is a potential suitable candidate to be used for water treatment in Fe 0 filters.…”

Section: Current Use Of Steel Wool For Water Treatmentmentioning

confidence: 99%

Technologies for Decentralized Fluoride Removal: Testing Metallic Iron-based Filters

Ndé-Tchoupé

Crane

Mwakabona

et al. 2015

Water

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“…10 Low-cost adsorbents already reported for the removal of Hg(II) include fly ash, 11 coal, 12-13-14 tree bark, 15 human hair, 16 fertilizer waste, 17 used tea leaves, 18 waste rubber, 19 ricehusk ash, 20 flax shive, 21 oil shale, 22 camel bone charcoal 23 and iron ore slime. 24 The aim of this work is to assess the ability of ZnO:S to adsorb Hg(II) from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Hassan¹,

Kamel²,

Awwad³

et al. 2018

ECB

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Decontamination of mercury from aqueous media remains a serious task for health and ecosystem protection. Removal of Hg(II) from the aqueous solution by ZnO:S has been investigated and elucidated. The effect of various parameters such as solution pH, adsorbent dose, contact time, initial adsorbate concentration has been studied and optimized. The optimized parameters for metal ion are pH value of 2.4, the equilibrium time was attained after 30 min, and the maximum removal percentage was achieved at an adsorbent loading weight of 0.08 g. It was found that the adsorption capacity of ZnO:S increased with increase in the initial mercury concentration. The equilibrium and kinetic data were found to be in good agreement with Freundlich isotherm model. * Corresponding AuthorsFax: +20 2 26822991 E-Mail: saadsmhassan@yahoo.com (S.S.M. Hassan) [a]

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“…Activated carbon (AC) is an excellent adsorbent due to its high surface area, well-developed internal pore structure, and tunable surface chemistry [5]. Ion exchange, electrostatic interaction and coordination of functional groups on activated carbon surface were considered as the main factors in the adsorption of metal ions by AC [6]. However, a significant drawback of activated carbon adsorption, presenting low level of selectivity and adsorption saturation, was revealed by several studies.…”

Section: Introductionmentioning

confidence: 99%

Efficient adsorption of Hg (II) ions in water by activated carbon modified with melamine

Qin¹,

Meng²,

Chen³

2018

AIP Conference Proceedings

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Abstract. Removal of Hg (II) ions from industrial wastewater is important for the water treatment, and adsorption is an efficient treatment process. Activated carbon (AC) was modified with melamine, which introduced nitrogen-containing functional groups onto AC surface. Original AC and melamine modified activated carbon (ACM) were characterized by elemental analysis, N2 adsorption-desorption, determination of the pH of the point of zero charge (pHpzc) and X-ray photoelectron spectroscopy (XPS) and their performance in the adsorption of Hg(II) ions was investigated. Langmuir model fitted the experimental data of equilibrium isotherms well. ACM showed the higher Hg (II) ions adsorption capacity, increasing more than more than 1.8 times compared to the original one. Moreover, ACM showed a wider pH range for the maximum adsorption than the parent AC.

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Removal of mercury(II) from wastewater using camel bone charcoal

Cited by 98 publications

References 18 publications

Technologies for Decentralized Fluoride Removal: Testing Metallic Iron-based Filters

Technologies for Decentralized Fluoride Removal: Testing Metallic Iron-based Filters

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Efficient adsorption of Hg (II) ions in water by activated carbon modified with melamine

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