Biosorption and biotransformation of hexavalent chromium [Cr(VI)]: A comprehensive review

Jobby, Renitta; Jha, Pamela; Yadav, Anoop; Desai, Neetin

doi:10.1016/j.chemosphere.2018.05.050

Cited by 616 publications

(220 citation statements)

References 80 publications

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“…Kondisi ini membuat Cr(VI) akan lebih mudah untuk terakumulasi pada biofilm yang tumbuh di permukaan batu di dasar perairan. Selain itu, pH yang relatif netral menyebabkan reduksi Cr(VI) menjadi Cr(III) tidak optimal sehingga akumulasi Cr(VI) dalam biofilm dapat menjadi tinggi (Jobby et al, 2018).…”

Section: Gambar 3 Konsentrasi Cr(vi) DI Dalam Biofilm (Bar Menunjukkunclassified

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ANALISIS PENCEMARAN Cr(VI) DI SUNGAI BADEK, KOTA MALANG DENGAN MENGGUNAKAN BIOFILM

Kurniawan¹,

Salamah²,

Jayati³

2019

EJES

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One of the most severe environmental problems is heavy metal pollution such as Cr(VI) in aquatic ecosystems. Cr(VI) is toxic and carcinogenic heavy metals pollutants that persistent and easily accumulated through the food web. Accumulation of Cr(VI) concentration in the aquatic ecosystem gradually increases with the increases of industrial activity. Therefore, Cr(VI) concentration in aquatic ecosystems should be monitored continuously, and thus, suitable and accuracy monitoring technologies are necessary. This study analyzed the utilization of biofilm as a biomonitoring agent of Cr(VI) in the Badek River, Malang City. The concentration of Cr(VI) inside the biofilm and the surrounding water of biofilm were investigated. The results revealed that the concentrations of Cr(VI) inside the biofilms were hundred times higher than the surrounding water. The biofilm may accumulate Cr(VI) from the surrounding water resulting in the Cr(VI)-rich microenvironment inside the biofilm. The adsorbed Cr(VI) is retained mostly in the interstitial water of the biofilm matrices. The findings in this study suggested that the biofilm can be used as a potential biological agent to monitor of Cr(VI) pollutant in the river ecosystems.

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Section: Gambar 3 Konsentrasi Cr(vi) DI Dalam Biofilm (Bar Menunjukkunclassified

“…Lebih dari itu, logam berat ini dapat menyebabkan berbagai masalah kesehatan bagi manusia. Bahaya kesehatan utama yang disebabkan oleh Cr(VI) antara lain adalah asma bronkial, alergi kulit, dan kanker (Jobby et al, 2018). Akumulasi Cr(VI) dalam ekosistem perairan akan terus-menerus meningkat seiring dengan meningkatnya aktivitas industri.…”

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ANALISIS PENCEMARAN Cr(VI) DI SUNGAI BADEK, KOTA MALANG DENGAN MENGGUNAKAN BIOFILM

Kurniawan¹,

Salamah²,

Jayati³

2019

EJES

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“…Chromium [Cr] compounds are among the most common environmental contaminants because of their widespread and extensive use in industrial applications [1]. The trivalent [Cr (III)] and hexavalent [Cr(VI)] oxidation states of chromium are the most stable and abundant in the natural environment; they differ significantly, however, in their physicochemical properties, bioavailability, and toxicity to living organisms [2].…”

Section: Introductionmentioning

confidence: 99%

“…Hexavalent chromium [Cr (VI)] is one of the most poisonous and harmful heavy metals, one of the top 20 pollutants on the Superfund priority list of hazardous substances [3], the third most common pollutant at hazardous waste sites [4], and the number one carcinogenic substance [5]. In addition, Cr(VI) is highly water-soluble, highly mobile in aqueous systems, and highly toxic as it causes severe physiological and neurological ill effects on human and animal health, such as anemia; diarrhea; nausea; epigastric pain; ulcers; vomiting; eye and skin irritation; damage to nerve tissues, kidney, and liver; pulmonary congestion; internal hemorrhaging; and circulatory shutdown [1,6]. It is also highly mutagenic and can induce DNA damage and birth defects, affect gene expression, and decrease reproductive health [1,7].…”

Section: Introductionmentioning

confidence: 99%

Hexavalent chromium removal and total chromium biosorption from aqueous solution by Quercus crassipes acorn shell in a continuous up-flow fixed-bed column: Influencing parameters, kinetics, and mechanism

Aranda-García

Cristiani‐Urbina

2020

PLoS ONE

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Continuous fixed-bed column studies were carried out, utilizing acorn shell from Quercus crassipes Humb. & Bonpl. (QCS), in order to remove total chromium and Cr(VI) from aqueous solution. Effects of various fixed-bed column parameters such as influent solution pH, influent flow rate, QCS bed height, and influent Cr(VI) concentration were investigated. Results from the fixed-bed column experiments demonstrate that total chromium biosorption and Cr(VI) removal by QCS depend strongly on the pH of influent solution. The highest capacities for Cr(VI) removal and total chromium biosorption are about 181.56 and 110.35 mg g-1 and are achieved at influent solution pH of 1.0 and 2.0, respectively. Besides this, total chromium biosorption capacities increased from 104.25 to 116.14 mg g-1 , 109.07 to 117.44 mg g-1 , and 85.02 to 129.87 mg g-1 , as bed height, inlet flow rate, and influent Cr(VI) concentration increased from 1.7 to 6.5 cm, 0.25 to 1 mL min-1 , and 50 to 400 mg L-1 , respectively. The dose-response model defines the entire breakthrough curve for total chromium biosorption onto QCS, under all experimental conditions. X-ray photoelectron spectroscopy (XPS) and biosorption kinetic studies revealed that QCS is able to remove toxic Cr (VI) from acidic liquid solution by means of a complex mechanism that involves the binding of Cr(VI) oxyanions to positively charged groups present at the QCS surface, after which the Cr(VI) species are reduced to Cr(III) by adjacent electron donor groups, and the generated Cr(III) ions then become partially bound to the QCS biomass and partially released into the liquid phase. Results show that QCS can be employed as an easily accessible, abundant, eco-friendly, and inexpensive biosorbent for the removal of total chromium and Cr(VI) from Cr(VI) solutions, in continuous operation.

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“…Furthermore, Cr(VI) is listed in group A of toxic pollutants in wastewater by the Environmental Protection Agency (EPA) . Cr (VI) species may exist in wastewater as chromates (CrO 4 2− ), dichromate Cr (VI) (Cr 2 O 7 2− ) and bichromate (HCrO 4 2− ), depending on the pH and the Cr (VI) concentration . Exceeding the limit, he cause skin and stomach irritation for a short‐time exposure and damage to liver, and death in large doses for a long‐time exposition .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of amidoximated polyacrylonitrile fibers and its use as adsorbent for Cr (VI) ions removal from aqueous solutions

Bouchoum

Benmoussa

Jada

et al. 2019

Env Prog and Sustain Energy

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Functionalized fibers, especially polyacrylonitrile fibers (PANF), have attracted wide interest as an effective and economical material for environment and water protection. In this study, polyacrylonitrile fibers modified with hydroxylamine hydrochloride were used as an adsorbent to remove hexavalent chromium ions from aqueous solutions. The novelty of the present study compared to the literature is the functionalization of polyacrylonitrile fibers surface by optimizing cost and energy while achieving a yield fast removal rate and high adsorption capacity of hexavalent chromium from aqueous solutions. The amidoximated polyacrylonitrile fibers were characterized using Fourier Transform InfraRed spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The results confirmed the success of polyacrylonitrile fibers modification. The adsorption capacity was evaluated by investigating the effect of initial pH solution ranging from 2.0 to 7.0, the adsorbent dose varied from 0.05 to 0.25 g, the initial Cr (VI) concentration range was (5–70 mg g−1), the temperature varied from 5 to 60°C, and the contact time ranged from 0 to 180 min. We have used the Langmuir and Freundlich adsorption models to describe the equilibrium sorption data. The maximum adsorption capacity estimated using the Langmuir model reached 32. 57 mg g−1 under optimal conditions. The thermodynamic parameters (ΔG, ΔH, and ΔS) were also determined. In addition, the adsorbent showed a desorption rate of Cr (VI) up to 92% with 0.5 mol of NaOH, which can be reused for three adsorption–desorption cycles. The overall data showed the efficiency of amidoximated polyacrylonitrile fibers in removing Cr (VI) from aqueous solutions. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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Biosorption and biotransformation of hexavalent chromium [Cr(VI)]: A comprehensive review

Cited by 616 publications

References 80 publications

ANALISIS PENCEMARAN Cr(VI) DI SUNGAI BADEK, KOTA MALANG DENGAN MENGGUNAKAN BIOFILM

ANALISIS PENCEMARAN Cr(VI) DI SUNGAI BADEK, KOTA MALANG DENGAN MENGGUNAKAN BIOFILM

Hexavalent chromium removal and total chromium biosorption from aqueous solution by Quercus crassipes acorn shell in a continuous up-flow fixed-bed column: Influencing parameters, kinetics, and mechanism

Synthesis of amidoximated polyacrylonitrile fibers and its use as adsorbent for Cr (VI) ions removal from aqueous solutions

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