Removal of Cadmium and Zinc Ions From Aqueous Solution By Using Two Type of Husks

Patel, Kailash P.; Tank, Shantilal K.; Patel, Kamlesh; Patel, P.D.

doi:10.1016/j.apcbee.2013.05.025

Cited by 17 publications

(4 citation statements)

References 8 publications

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“…Davarnejad and Panahi succeeded in removing Cu(II) from industrial wastewater (Davarnejad et al 2015) with a simple design and little initial outlay of funds, as reported by Patel, K.P., et al (Patel et al 2013).…”

Section: Introductionmentioning

confidence: 92%

Prussian blue/ silica HOM nanocomposite for efficient removal of copper (II) from water

El-Maali,

El-Hameed,

Markeb

et al. 2024

Preprint

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In this work Prussian blue loaded silica (PB/Si HOM) nanocomposite has been used for removal of Cu (II) as it can act as a selective adsorption agent with negligible toxicity. A faster uptake of copper in water samples was caused by the smaller particle size, higher specific surface area, and higher pore volume values in comparison to the commercial Prussian blue. Optimum conditions are determined using Design-Expert®, version 6.0 (DX6) software applying a contact time of 24 hr with PB/Si HOM nanocomposite adsorbent. The influence of solution pH on the removal efficiency and adsorption capacity of the adsorbent was optimized to be pH 8.4. Other experimental parameters were conducted to determine their effects on the adsorption of Cu (II); It was found that the maximum adsorption 92.3% was obtained at 25°C, 60 minutes of contact time and 10 ppm of metal ions. It was discovered that the ideal amount of adsorbent material for the removal was 0.1 g. It was also discovered that the Langmuir isotherm was appropriate for the adsorption of Cu (II) than the Freundlich isotherm. The kinetic parameters and experimental adsorption capacities for copper onto PB/silica HOM nanocomposites were also studied, it is found that the system is fitted with pseudo-second order where calculated Qe is found to be 175.439 mgCu(II)/g that is very close to the Experimental Qe one (180.697 mgCu(II)/g). Therefore, the newly created environmental nanocomposite material was shown to be appropriate for the adsorption of Cu (II) due to its high adsorption capacity, high adsorption selectivity, quick adsorption speed, and good regeneration for repeated use for adsorption of copper pollutant from different water matrices.

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Section: Introductionmentioning

confidence: 92%

Prussian blue/ silica HOM nanocomposite for efficient removal of copper (II) from water

El-Maali,

El-Hameed,

Markeb

et al. 2024

Preprint

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“…Due to its high toxicity for freshwater fish even at concentrations as low as 10–20 ppb, [5] a sustainable and responsible large scale industrial process should remove copper from any wastewater streams before they are released into rivers and oceans [8] . There are a variety of different technologies available to treat copper‐containing wastewater, ranging from adsorption on different adsorber materials, [9–13] cementation, [14] membrane filtration technologies, [15–17] and electrochemical methods, [18–21] to photocatalysis [22–24] . The suitability of each method is highly dependent on the concentration and type of copper species in the respective streams [8] .…”

Section: Introductionmentioning

confidence: 99%

Sustainable Twist – Towards Highly Atom Efficient Grignard Processes

Kohler,

Kirchner,

Păunescu

et al. 2024

Helvetica Chimica Acta

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Copper salts, which are widely applied in chemical processes, are highly toxic for aquatic life with devastating and long‐lasting effects. The most sustainable measure to prevent negative impact on surface water bodies is the elimination of copper from chemical processes. In Grignard reactions, acyl chlorides are widely used in combination with copper(I) chloride to introduce acyl substituents to aromatic compounds. We demonstrate that carboxylic acid anhydrides are a competent and highly selective alternative to acyl chlorides when used in the absence of copper(I) catalysts. An integrated value stream cycle allows for recycling of the carboxylate salt byproducts by reaction with ketene, thereby reducing the waste output to almost zero. This proposed process can therefore contribute to minimizing both chemical waste and heavy metal input into water bodies.

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“…However, wastewater containing dyes is very difficult to treat, since the dyes are recalcitrant organic molecules, resistant to aerobic digestion, and stable to light, heat and oxidizing agents (Islam et al 2011;Priya and Selvan 2017). Although several new composite materials including polyphenylsulfone or multi-walled carbon nanotubes membrane filters (Nayak et al 2019), graphene oxide-based nano-materials (Lim et al 2018) and selective composite cation exchanger (Ismail 2010;Nabi et al 2011) have been developed, however, commonly used procedures for removing metal ions from aqueous streams include chemical precipitation, lime coagulation, ion exchange, reverse osmosis and solvent extraction (Kant 2012;Patel et al 2013). During the past three decades, several physical, chemical and biological discoloration methods have been reported (Oak et al 2016); however, few have been accepted by the paper and textile industries.…”

Section: Introductionmentioning

confidence: 99%

Use of natural bio-sorbent in removing dye, heavy metal and antibiotic-resistant bacteria from industrial wastewater

et al. 2020

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In this study, we evaluated the ability of waste shell powder (WSP) and moringa seed powder (MSP) individually or in combination to eliminate dye, heavy metal and resistant bacteria from the industrial wastewater (IWW). The presence of dyes, heavy metals, approximately 7.0 log CFU/ml of aerobic bacteria and 3.0-4.0 log CFU/ml of other pathogens including Escherichia coli, Pseudomonas aeruginosa, Citrobacter freundii, Serratia liquefaciens and Bacillus cereus was evident in IWW of both tannery and textile industries. In addition, depending on the type of bacterial species each bacterium was resistant to as high as 50 ppm of multi-metal (Cr 6+ , Cd 2+ and Pb 2+ or its combination) and even multi-drug resistant (amoxicillin, ampicillin, cefixime, ceftazidime, and tazobactam). Combined use of MSP (0.8 gm/100 ml IWW) and WSP (0.2 gm/100 ml IWW) treatment was able to discolor the IWW within 4 h and took 24 h to eliminate heavy metals and pathogenic bacteria to non-detectable level from the IWW, simultaneously. On the other hand, individual use of MSP or WSP was not found effective enough to remove or eliminate dye, heavy metal and bacteria simultaneously from the IWW. Similar experimental results were observed in the challenge test with laboratory-prepared effluent water containing 35.0 ppm Remazol Brilliant Blue R dye and maximum 50 ppm Cr 6+ . Thus, the combination of these two bio-sorbents could be applicable in IWW treatment before being discharged into the environment.

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Removal of Cadmium and Zinc Ions From Aqueous Solution By Using Two Type of Husks

Cited by 17 publications

References 8 publications

Prussian blue/ silica HOM nanocomposite for efficient removal of copper (II) from water

Prussian blue/ silica HOM nanocomposite for efficient removal of copper (II) from water

Sustainable Twist – Towards Highly Atom Efficient Grignard Processes

Use of natural bio-sorbent in removing dye, heavy metal and antibiotic-resistant bacteria from industrial wastewater

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