Removal of Cr (VI) Using Low Cost Activated Carbon Developed By Agricultural Waste

Kumar, Ravi; Arya, Dinesh Kumar; Singh, N.; Vats, Hirdayesh Kumar

doi:10.9790/5736-1001017679

Cited by 19 publications

(11 citation statements)

References 10 publications

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“…Removal of Pb(II) and Cr(VI) from wastewater has been widely explored. For example, in the case of Cr(VI), the use of materials such as rice straw activated carbon [3], apple pulp [4], activated carbon developed from Terminalia arjuna nuts [5], activated carbon from hazelnut [6], sawdust [7], sugarcane baggas [8], activated carbon from mango kernel [9], egg shell and powdered marble [10], rice husk activated carbon [11] and apple peel powder [4] have been explored and reported in the literature. Moreover, numerous studies are available for Pb(II) removal from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves

et al. 2019

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The adsorption potential of acid activated carbon prepared from leaves of Juniperus procera to remove Pb(II) and Cr(VI) toxic ions from aqueous solutions was investigated. The effects of solution pH, adsorbent mass, contact time, initial ion concentration and temperature on the biosorption process were studied, and the optimum conditions were determined. Moreover, Langmuir, Freundlich, Temkin and Dubinin–Radushkevich adsorption isotherm models were applied to analyze adsorption data. Thermodynamic parameters for the adsorption processes were calculated. Adsorption was found to be a spontaneous and endothermic process. In addition, kinetic studies revealed a pseudo-first order kinetics biosorption process. The obtained results suggest that acid activated Juniperus procera leaves powder can be used as a cheap, efficient and environmentally friendly adsorbent material with high removal efficiency up to 98% for Pb(II) and 96% for Cr(VI) at 0.80 and 1.00 g/100 mL, respectively. The duration of the process was 100 min and 120 min for Pb(II) and Cr(VI) ions, respectively. The morphology of the of prepared activated carbon was investigated by scanning electron microscope (SEM).

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Section: Introductionmentioning

confidence: 99%

Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves

et al. 2019

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“…Penyerapan ion Cr(VI) oleh adsorben dari rumput laut (Fucus vesiculosus) dibuktikan dengan analisis FT-IR terdapat gugus hidroksil (-OH) dan gugus amino yang berkurang setelah adsorbsi yang menyebabkan ion Cr(VI) terikat pada permukaan adsorben (Cobas, Saronman, & Pazos, 2014). Salah satu pemanfaatan limbah biomassa dijadikan sebagai adsorben adalah adsorben dari cangkang Arenga pinnata merr untuk logam Cr(III) dan Cr(VI) (Zein, Arrisujaya, Hidayat, Elfia, Nazarudin, & Munaf., 2014), Adsorben dari limbah sekam dan jerami padi Singha, Naiya, Bhattacharya, & Das, 2011;Kumar, Arya, Singh, & Vats, 2017), akar eceng gondok (Singha et al, 2011); tempurung kelapa (Singha et al, 2011), kulit kayu pohon mangga, batu bata, batu kapur, bubuk biji pepaya dan Alga (Gandhi, Sirisha, & Sekhar, 2013) dapat dimanfaatkan untuk mengurangi cemaran ion logam Cr(VI), adsorben dari biji alpukat untuk logam Cu(II), Pb(II) dan Cd(II) (Wanja, Murungi, Wanjau & Hassanali, 2015).…”

Section: Pendahuluanunclassified

BIJI BUAH BISBUL (Diospyros blancoi) SEBAGAI BIOSORBEN Cr(III)

et al. 2018

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Velvet Apple Fruit Seeds (Diospyros blancoi) as Biosorbent of Cr(III) Velvet Apple Fruit (Diospyros blancoi) has not been explored more in Indonesia. The purpose of research was to explore the use of Velvet Apple Fruit seeds as adsobent of Cr(III) in waste. Biosorbent of velvet apple fruit seeds in removing Cr (III) metal ions has been investigated using batch method. Several parameters were used to determine absorption optimum conditions such as solution pH, contact time and biosorbent dosage. Langmuir, Freundlich and Temkin isotherm models were used in determining biosorption equilibrium. FTIR and SEM-EDX were used to characterize the velvet apple fruit seeds biosorbent. The equilibrium adsorption isotherms showed the velvet apple fruit seeds biosorbent had a maximum adsorption capacity of 5.592 mg/g. The adsorption efficiency of Cr (III) ion by velvet apple fruit seeds was 81.78%. The results showed that velvet apple fruit seeds potentially as an alternative low-cost biosorbent for removing heavy metal ions in solution.Keywords: biosorption, heavy metals, alternative biosorbent, waste water treatmentABSTRAK Buah bisbul di Indonesia belum tereksplor dengan baik potensinya. Tujuan penelitian adalah untuk megetahui potensi biji buah Bisbul sebagai adsorben logam Cr(III) pada limbah. Biosorben biji buah bisbul (Diospyros blancoi) dalam menyerap ion logam Cr(III) telah diteliti dengan menggunakan metode batch. Beberapa parameter digunakan untuk menentukan kondisi optimum penyerapan seperti pH larutan, waktu kontak dan dosis biosorben. Model isoterm Langmuir, Freundlich dan Temkin dipakai dalam menentukan kesetimbangan biosorpsi. FTIR dan SEM-EDX digunakan dalam mengkarakterisasi biosorben biji buah bisbul. Isoterm adsorpsi kesetimbangan menunjukkan biosorben biji buah bisbul mempunyai kapasitas adsorpsi maksimum 5,592 mg/g. Efisiensi penyerapan ion Cr(III) oleh biji buah bisbul mencapai 81,78%. Hasil penelitian menunjukkan bahwa biji buah bisbul berpotensi sebagai alternatif biosorben murah dalam menghilangkan ion logam berat dalam larutan.Kata kunci: biosorpsi, logam berat, alternatif biosorben, pengolahan air limbah

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“…Agricultural wastes which are abundant in source are mainly consisting of cellulosic structure, which makes them an effective adsorbent for heavy metal ions (Guiza, 2017). Several recent studies involving agricultural wastes as adsorbent for Cr(VI) removal included usage of bamboo (Dula et al, 2014), rice straw (Kumar et al, 2017), coffee husk (Berihun, 2017), tea wastes, coconut shell and orange peel (Amir et al, 2017). In this study, palm oil wastes in the form of ash were used for Cr(VI) removal.…”

Section: Introductionmentioning

confidence: 99%

Removal of Hexavalent Chromium from Aqueous Solution by Adsorption on Palm Oil Fuel Ash (POFA)

Nordin¹,

Asmadi²,

Manikam³

et al. 2020

GEP

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This study investigated the removal of hexavalent chromium, Cr(VI) from aqueous solution by adsorption using palm oil fuel ash (POFA), an agricultural waste from the palm oil industry. POFA adsorbent was characterized by X-ray diffraction (XRD) analysis. Batch adsorption study revealed that the optimum conditions for the removal were as follows: pH 2, adsorbent dosage 80 g/L and contact time of 6 min, which resulted in 92% removal and 0.464 mg/g maximum adsorption capacity. Adsorption isotherm and kinetic studies showed that Freundlich isotherm and pseudo-second-order kinetic models fitted best to the experimental data. Column adsorption study at 5 mL/min of flow rate showed that 90% removal was obtained at 2 min of contact time which represented its breakthrough point. The column reached saturation at 30 min and the maximum column adsorption capacity recorded was 0.412 mg/g. The column adsorption behavior showed good fit with both Thomas and Yoon-Nelson kinetic models. These findings suggested that the utilization of POFA as a low-cost adsorbent to remove Cr(VI) from wastewater, either in batch or fixed bed adsorption system is not only effective, but concurrently will help to reduce wastes from the palm oil industry.

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Removal of Cr (VI) Using Low Cost Activated Carbon Developed By Agricultural Waste

Cited by 19 publications

References 10 publications

Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves

Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves

BIJI BUAH BISBUL (Diospyros blancoi) SEBAGAI BIOSORBEN Cr(III)

Removal of Hexavalent Chromium from Aqueous Solution by Adsorption on Palm Oil Fuel Ash (POFA)

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