Factorial experimental design of winery wastewaters treatment by heterogeneous photo-Fenton process

Mosteo, Rosa; Ormad, P.; Mozas, E.; Sarasa, Judith; Ovelleiro, J.L.

doi:10.1016/j.watres.2006.02.008

Cited by 71 publications

(36 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These effluents are mainly originated from various unit operations such as washing, crushing and pressing of food and grapes, as well as, the rinsing of fermentation tanks, barrels and other equipment [4,5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Treatment of winery wastewater by sulphate radicals: HSO 5 − /transition metal/UV-A LEDs

Rodríguez-Chueca

Amor

Silva

et al. 2017

Chemical Engineering Journal

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…Peroxymonosulphate (HSO 5 -; PMS) is the active ingredient of a triple potassium salt, 2KHSO 5 •KHSO 4 •K 2 SO 4 . This salt has some advantages when compared to hydrogen peroxide.…”

Section: Introductionmentioning

confidence: 99%

Treatment of winery wastewater by sulphate radicals: HSO 5 − /transition metal/UV-A LEDs

Rodríguez-Chueca

Amor

Silva

et al. 2017

Chemical Engineering Journal

View full text Add to dashboard Cite

“…This tool has been proven efficient in works that study wastewater disinfection [18,19], by creating a pre-designed set of experiments, which explains the process and the interactions between the studied parameters.…”

Section: Introductionmentioning

confidence: 99%

The antagonistic and synergistic effects of temperature during solar disinfection of synthetic secondary effluent

Giannakis

Darakas

Escalas-Cañellas

et al. 2014

Journal of Photochemistry and Photobiology A: Chemistry

View full text Add to dashboard Cite

a b s t r a c tA 4-factor, multilevel, full factorial design of 240 experiments was performed in order to investigate the effect of temperature on the inactivation efficiency of spiked Escherichia coli in simulated solar disinfection of a synthetic secondary effluent. The initial population of the microorganisms was 10 3 , 10 4 , 10 5 and 10 6 CFU/mL, the exposure time 1, 2, 3 and 4 h, the treatment temperature 20, 30, 40, 50 and 60• C and the sunlight intensity 0, 800 and 1200 W/m 2 . Radical changes in bacterial behavior, process efficiency and remaining populations were observed, while treating effluents in discreet temperatures. Elevating treatment temperature from 20 to 40• C drastically impaired disinfection. Thermal inactivation with no regrowth predominated at 50• C and total inactivation of microorganisms was observed at 60• C in nonirradiated samples. Irradiation at 800 and 1200 W/m 2 much increased inactivation efficiency, especially at 50 and 60• C, proving sensitive light-temperature synergy at those temperatures. Total inactivation was achieved within 4 h under a range of treatment conditions, including all samples at 1200 W/m 2 , or 60• C samples at 800 W/m 2 . Also, 99.9-100% efficiencies and final population below 1000 CFU/100 mL were obtained at 800 W/m 2 and temperatures of 50 • C and above. Treatment time, temperature and intensity are the critical parameters for the disinfection process, while initial population is insignificant for removal efficiency. An explanation of the mechanism of the process as well as a general linear model predicting the outcome of the experiments is also suggested.

show abstract

“…The pH effect can be better visualized in the Pareto chart shown in Figure 2 (a Pareto chart indicates the magnitude and the significance of each effect (single variables and double/triple interactions) and contains a reference line so that any effect that goes beyond this line is potentially important). 16 Figure 2 thus indicates that by decreasing the pH from 5 (assays 2, 5, 6, and 8, for which a very low degradation yields were accomplished) to 2, an average increase of ca. 71% and 77% in the degradation yields of Thiamethoxam and Imidacloprid was achieved, respectively.…”

Section: Resultsmentioning

confidence: 91%

Degradation of the insecticides Thiamethoxam and Imidacloprid in aqueous solution as promoted by an innovative Feº/Fe3O4 composite

Urzedo¹,

Nascentes²,

Augusti³

2009

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

The performance of an innovative Feº/Fe 3 O 4 composite to degrade the insecticides Thiamethoxam and Imidacloprid in aqueous solution was evaluated. Factorial designs were built to investigate the influence of a number of crucial variables on such degradation processes: H 2 O 2 concentration, solution pH, and composite mass. The solution pH was the most influential variable; hence, significant degradation rates (> 90%) was accomplished exclusively in acidic solutions (pH=2). In addition, the composite was highly efficient in promoting the degradation of both insecticides either in the presence or unpredictably in the absence of H 2 O 2 . These results thus indicated that the composite possess a dual behavior, acting as either an oxidizing or a reducing agent.

show abstract

Factorial experimental design of winery wastewaters treatment by heterogeneous photo-Fenton process

Cited by 71 publications

References 20 publications

Treatment of winery wastewater by sulphate radicals: HSO 5 − /transition metal/UV-A LEDs

Treatment of winery wastewater by sulphate radicals: HSO 5 − /transition metal/UV-A LEDs

The antagonistic and synergistic effects of temperature during solar disinfection of synthetic secondary effluent

Degradation of the insecticides Thiamethoxam and Imidacloprid in aqueous solution as promoted by an innovative Feº/Fe3O4 composite

Contact Info

Product

Resources

About