Adsorption of Cu(II) on Araucaria angustifolia wastes: Determination of the optimal conditions by statistic design of experiments

Lima, Éder C.; Royer, Betina; Vaghetti, Júlio C.P.; Brasil, Jorge L.; Simon, Nathália Marcolin; Santos, Araci A. dos; Pavan, Flávio André; Dias, Susana Oliveira; Benvenutti, Edílson V.; Silva, Edson Antônio da

doi:10.1016/j.jhazmat.2006.06.073

Cited by 108 publications

(84 citation statements)

References 23 publications

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“…Each of these has a diameter of 10 to 25 cm and contains approximately 700-1200 scales with about 150 seeds with a weight ranging from 0.61 to 4.1 kg ( Figure 1C) (Lima et al, 2007). In a pinecone of 2.3 kg (weight average) there are about 0.8 kg seeds (pinhão, plural pinhões).…”

Section: Plant Morphologymentioning

confidence: 99%

“…Several authors (Lima et al, 2007;2008;Royer et al, 2009;Calvete et al, 2009; studied the use of the pinhão coat as an alternative for promoting the adsorption of metal ions and dyes, potentially carcinogenic, from aqueous solutions in the treatment of industrial effluents. All studies argue that the pinhão coat can be a powerful and inexpensive tool for removing heavy metals and dyes in the treatment of effluents from tannery and metallurgical industries.…”

Section: The Pinhão Coatmentioning

confidence: 99%

“…All studies argue that the pinhão coat can be a powerful and inexpensive tool for removing heavy metals and dyes in the treatment of effluents from tannery and metallurgical industries. The intense brown color of the pinhão coat is due to the presence of tannins that are primarily responsible for the adsorption of metal ions, such as copper, for example (Lima et al, 2007).…”

Section: The Pinhão Coatmentioning

confidence: 99%

See 2 more Smart Citations

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Peralta

Koehnlein

Oliveira

et al. 2016

Trends in Food Science & Technology

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Section: Plant Morphologymentioning

confidence: 99%

Section: The Pinhão Coatmentioning

confidence: 99%

Section: The Pinhão Coatmentioning

confidence: 99%

See 1 more Smart Citation

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Peralta

Koehnlein

Oliveira

et al. 2016

Trends in Food Science & Technology

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“…Table 2a provides an example of design points used in a 2 3 full factorial design that have been modified by multiplying by a simulated random number between 0.95 and 1.05 to obtain the design matrix given in Table 2b. (Bhunia & Ghangrekar, 2007) Full Factorial 11% 24% (Prasad & Srivasta, 2009) Full Factorial 54% 125% (Lima, et. Al., 2007) Full Factorial 5% 9% Saadat & Karimi-Jashni, 2010) Full Factorial 135% 444% (Srinivasan & Viraraghavan, 2010) Fractional Factorial 18% 39% (Mobilia, Scipioni, Veglio & Sciano, 2010) Fractional Factorial 27% 67% (Dobrev, Pishtiyski, Stanchev & Mircheva, 2007) Fractional Factorial 5% 9% (Chen, Lin, Jones, Fu & Zhan, 2009) Fractional Factorial 37% 109% (Rispoli, et.…”

Section: Methodsmentioning

confidence: 99%

Using Simulation to Test the Reliability of Regression Models

Rispoli¹,

Shah²

2015

EER

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In many sciences, it is standard laboratory practice to use a statistical design of experiment and a regression model to study the influence of multiple parameters under a wide range of conditions. The current study aims at investigating the reliability of regression models by examining recently published models. Of particular interest are the assumptions that are not robust to violation such as the reliability of measurements, constant variation of residuals, and sample size. To test regression models simulation is used to model potential measurement error and the importance of sample sizes on parameter estimation. The randomly perturbed designs are then used together with associated mathematical models obtained from the original designs to simulate experiments and obtain new regression models. A comparison of the original model to the new model, and various statistical tests are performed to determine how accurate the original parameters have been predicted when exposed to simulated measurement error.

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“…Apricot stone shells have been studied using chemical treatment and low activation by Daifullah and Girgis [104] for the removal of substituted phenols, who suggested that the adsorption of phenols on these adsorbents was inversely proportional to their solubility. Wastes of Araucaria angustifolia [105] (also named pinhao) in its natural state and loaded with Congo red were tested as low-cost adsorbents for Cu (II) removal from aqueous solutions. Optimizationwas carried out in order to reduce the total number of experiments and to achieve the best conditions for the batch adsorption procedure.…”

Section: Bio-waste Materials As Adsorbent Of Contaminate From Waste Wmentioning

confidence: 99%

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Ali¹

2017

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Towards the future of green, sustainable and renewable products the suggestion of using the agriculture biomass in the coming decades got increased. Biomass material is one of the important sources of alternative material for the production of biocomposite products. An increasing global awareness about environmental issues is acting as the driving force behind the utilization of biomass material as valuable products. Bio-waste materials (agricultural waste) have been recognized as an ecological burden for the society they stimulated new gateways for the production of renewable, low cost and sustainable adsorbents for water treatment applications. In the area of water purification, nanotechnology offers the possibility of an efficient removal of pollutants and bacteria. Adsorption has proved that it is the best process of water treatment technologies, because of its significant advantages. Different modification methods of waste-based adsorbents, have also been presented to highlight and discuss the key advancements on the preparation of novel adsorbents using agricultural "agro-waste". Adsorption mechanisms responsible for pollutants removal by waste-based adsorbents have also been discussed. It also focuses on the computational aspects of binding of biomolecules to nanoparticles (NPs) and some of the applications of the biosynthesized NPs as water purification. The nature acts like a large ''bio-laboratory" comprising of plants, algae, fungi, yeast, etc. which are composed of biomolecules. These naturally occurring biomolecules have been identified to play an active role in the formation of nanoparticles with distinct shapes and sizes thereby acting as a driving force for the designing of greener, safe and environmentally benign protocols for the synthesis of NPs. The biosynthesis of NPs using waste materials will help researchers not only to design safer nanomaterials but also to promote the understanding of health and safety considerations of NPs. Useful materials can be produced easily even at reasonable scale because the biomaterial based routes eliminate the need to use toxic chemicals. The aim of this review is to summarize the adsorption capacities for organic and inorganic pollutants by different bio-waste-based adsorbents.

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Adsorption of Cu(II) on Araucaria angustifolia wastes: Determination of the optimal conditions by statistic design of experiments

Cited by 108 publications

References 23 publications

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Using Simulation to Test the Reliability of Regression Models

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

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