Optimization of filtration conditions for CIP wastewater treatment by nanofiltration process using Taguchi approach

Gönder, Z. Beril; Kaya, Yasemin; Vergili, İlda; Barlas, Hulusi

doi:10.1016/j.seppur.2009.10.001

Cited by 71 publications

(36 citation statements)

References 34 publications

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“…Taguchi method is a systematic approach to design and analysis of experiments. Various steps of Taguchi method are: Identification the quality characteristics and selection of design parameters, determination of the number of factor levels, selection of the appropriate orthogonal array, executing the experiments based on the arrangement of the orthogonal array, evaluating the results using signal to noise(S/N) ratios, analysis of variance (ANOVA), selection of the optimum levels of factors, verifying the optimum process parameters through the confirmation test [51]. 9 …”

Section: Orthogonal Test and Taguchi Methodsmentioning

confidence: 99%

Synergistic corrosion inhibition of environment-friendly inhibitors on the corrosion of carbon steel in soft water

et al. 2015

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Section: Orthogonal Test and Taguchi Methodsmentioning

confidence: 99%

Synergistic corrosion inhibition of environment-friendly inhibitors on the corrosion of carbon steel in soft water

et al. 2015

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“…If the predicted results are confirmed, the suggested optimum working conditions will be adopted [19]. The predicted S/N ratio using the optimal level of the design parameters can be calculated as [15] …”

Section: Resultsmentioning

confidence: 99%

Analysis of Design of Experiments Methodology for Optimization of Pulsed Current GTAW Process Parameters for Ultimate Tensile Strength of UNS S32760 Welds

Yousefieh

Shamanian

Arghavan

2012

Metallogr. Microstruct. Anal.

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This work deals with the improvement of ultimate tensile strength (UTS) of super duplex stainless steel (SDSS, UNS S32760) welds fabricated by pulsed current gas tungsten arc welding (PCGTAW) process. The Taguchi method, a design of experiment technique, was employed to optimize PCGTAW process parameters to improve the UTS of SDSS weldments. The optimum conditions were found to be the second level of pulse current (120 A), second level of background current (60 A), first level of % on time (40) and second level of pulse frequency (3 Hz). Under these conditions, UTS was predicted as 776 MPa that was very close to the observed value of 769 MPa. Analysis of variance (ANOVA) was performed on the measured data and signal-to-noise ratios. As a result of ANOVA, the % on time was found to be the most significant factor affecting the UTS of SDSS welds by percentage contribution of 62.23. The pulse current (21.13%) and the background current (16.18%) had also the next most significant effects on the UTS. The pulse frequency with the 0.46% contribution was insignificant.

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“…F-ratio was used to compare the critical F value, a statistic that can be found in most books on statistics and experimental design (Montgonery, 2001), so as to evaluate whether or not the impact factors were statistically significant. The F-ratio was calculated using the method previously described by Gonder et al (2010).…”

Section: Optimization Of the Degradation Methods Of Dpaa By Tiomentioning

confidence: 99%

Diphenylarsinic acid contaminated soil remediation by titanium dioxide (P25) photocatalysis: Degradation pathway, optimization of operating parameters and effects of soil properties

Wang

Teng

et al. 2016

Science of The Total Environment

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Diphenylarsinic acid (DPAA) is formed during the leakage of arsenic chemical weapons in sites and poses a high risk to biota. However, remediation methods for DPAA contaminated soils are rare. Here, the photocatalytic oxidation (PCO) process by nano-sized titanium dioxide (TiO 2 ) was applied to degrade DPAA in soil. The degradation pathway was firstly studied, and arsenate was identified as the final product. Then, an orthogonal array experimental design of L 9 (3) 4 , only 9 experiments were needed, instead of 81 experiments in a conventional one-factor-at-a-time, was used to optimize the operational parameters soil:water ratio, TiO 2 dosage, irradiation time and light intensity to increase DPAA removal efficiency. Soil:water ratio was found to have a more significant effect on DPAA removal efficiency than other properties. The optimum conditions to treat 4 g soil with a DPAA concentration of 20 mg kg −1 were found to be a 1:10 soil: water ratio, 40 mW cm −2 light intensity, 5% TiO 2 in soil, and a 3-hour irradiation time, with a removal efficiency of up to 82.7%. Furthermore, this method (except for a change in irradiation time from 3 to 1.5 h) was validated in nine different soils and the removal efficiencies ranged from 57.0 to 78.6%. Removal efficiencies were found to be negatively correlated with soil Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v electrical conductivity, organic matter content, pH and total phosphorus content. Finally, coupled with electron spin resonance (ESR) measurement, these soil properties affected the generation of OH• by TiO 2 in soil slurry. This study suggests that TiO 2 photocatalytic oxidation is a promising treatment for removing DPAA from soil.

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Optimization of filtration conditions for CIP wastewater treatment by nanofiltration process using Taguchi approach

Cited by 71 publications

References 34 publications

Synergistic corrosion inhibition of environment-friendly inhibitors on the corrosion of carbon steel in soft water

Synergistic corrosion inhibition of environment-friendly inhibitors on the corrosion of carbon steel in soft water

Analysis of Design of Experiments Methodology for Optimization of Pulsed Current GTAW Process Parameters for Ultimate Tensile Strength of UNS S32760 Welds

Diphenylarsinic acid contaminated soil remediation by titanium dioxide (P25) photocatalysis: Degradation pathway, optimization of operating parameters and effects of soil properties

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