Optimizing the photocatalytic process of removing diazinon pesticide from aqueous solutions and effluent toxicity assessment via a response surface methodology approach

Toolabi, Ali; Malakootian, Mohammad; Ghaneian, Mohammad Taghi; Esrafili, Ali; Ehrampoush, Mohammad Hassan; Askarshahi, M; Tabatabaei, Maesome; Khatami, Mehrdad

doi:10.1007/s12210-018-0751-2

Cited by 19 publications

(9 citation statements)

References 30 publications

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“…The presence of clear peaks in the UV-Vis absorption spectrum of AgNPs and SPIONPs and their absence in the plant extract indicated the synthesis of NPs in the desired solution. 32,33 According to the theory of quantum connement, the wavelength decreases as the particle size decreases. This spectrum again conrms the nanometer particle size and is consistent with the results of previous studies.…”

Section: Discussionmentioning

confidence: 99%

Metallic SPIONP/AgNP synthesis using a novel natural source and their antifungal activities

et al. 2020

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Section: Discussionmentioning

confidence: 99%

Metallic SPIONP/AgNP synthesis using a novel natural source and their antifungal activities

et al. 2020

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Section: Optimization Of Immobilized Beads Using Rsmmentioning

confidence: 88%

“…Table 2 depicted that the F value of the model is 41.84 with a low probability value (p < 0.001), indicating that the model was significant for dye decolorization. On the other hand, the value of p less than 0.0001 is statistically significant for the quadratic equation of the model [39]. Diagnostic plots showing (a) the externally studentized residuals plotted against the normal probability, (b) the predicted versus the externally studentized residuals, (c) the run number versus externally studentized residuals, (d) the actual responses versus the predicted responses.…”

Section: Optimization Of Immobilized Beads Using Rsmmentioning

confidence: 99%

Immobilization of Metanil Yellow Decolorizing Mixed Culture FN3 Using Gelling Gum as Matrix for Bioremediation Application

et al. 2020

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In this study, the Metanil Yellow (MY) decolorizing mixed culture, namely FN3, has been isolated from agriculture soil. The mixed culture was immobilized using gellan gum. In order to optimize the immobilization process for maximal dye decolorization, Response Surface Methodology (RSM) was performed. The optimal conditions for immobilization predicted by desirability function are 130 mg/L of MY dye concentration, 1.478% of gellan gum concentration, 50 beads and 0.6 cm of beads size with the percentage of decolorization of 90.378%. The correlation coefficients of the model (R2 and R2 adj) are 0.9767 and 0.9533, respectively. This indicates that the established model is suitable to predict the effectiveness of dye decolorization under the investigated condition. The immobilized beads of mixed culture FN3 were able to be reused up to 15 batches of decolorization. The immobilized cells also have high tolerance towards heavy metals. This was proven by higher dye decolorization rate by the immobilized cells even with the addition of heavy metals in the media. The decolorization potential of the mixed culture indicates that it could be useful for future bioremediation of soil contaminated sites and treatment solutions of water bodies polluted with MY dye.

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“…Results ranged from +10 mV in raw wastewater to + 214 mV in outflow effluent, indicating optimum aeration performance. In the aerobic processes due to increased dehydrogenase enzyme activity, ORP levels were also increased, making organic material degradation better and easier (Toolabi et al, 2017, Toolabi et al, 2018, Toolabi et al, 2019.…”

Section: Discussionmentioning

confidence: 99%

Advanced treatment of effluent extended aeration process using biological aerated filter with natural media: modiﬁcation in media, design and backwashing process

Malakootian

Hosseini

Toolabi

2020

Preprint

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Due to their tolerance of hydraulic and organic shocks, biological aerated filters (BAFs) have high filtration efficiency and are suitable for the treatment of complex and sanitary wastewater. In this study for the first time, natural media of date kernel from Bam city was used as the BAF reactor media and, at the end of the reactor, a meshing sand filter separated by a standard metal grid from the natural filter section was used. This can be considered innovations in the media and filtration. In this work, the actual effluent of the hospital wastewater treatment plant was employed as the inflow wastewater to the reactor, and its organic and inorganic parameters were measured before and after the treatment by the BAF reactor. Reactor effluent measurement was studied in two steps. In one step, the effluent from the backwashing was returned to the reactor and, in the other step, effluents did not return to the reactor, the comparison of which showed that the backwashing effluent return method had more removal efficiency. The backwashing process was also studied in three ways: bottom backwashing (TB), top backwashing (BB), and top and bottom backwashing (TBBS), to determine the amount of water consumed and to achieve the desired result. Finally, the TBBS method was selected as the optimal method. The effect of backwashing effluent return was evaluated on the results of the parameters. Concentration of most of the outflow parameters was less or in accordance with EPA standard 2012.

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Optimizing the photocatalytic process of removing diazinon pesticide from aqueous solutions and effluent toxicity assessment via a response surface methodology approach

Cited by 19 publications

References 30 publications

Metallic SPIONP/AgNP synthesis using a novel natural source and their antifungal activities

Metallic SPIONP/AgNP synthesis using a novel natural source and their antifungal activities

Immobilization of Metanil Yellow Decolorizing Mixed Culture FN3 Using Gelling Gum as Matrix for Bioremediation Application

Advanced treatment of effluent extended aeration process using biological aerated filter with natural media: modiﬁcation in media, design and backwashing process

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