Assessment of several advanced oxidation processes applied in the treatment of environmental concern constituents from a real hair dye wastewater

Bessegato, Guilherme G.; Souza, João Carlos de; Cardoso, J.; Zanoni, María Valnice Boldrin

doi:10.1016/j.jece.2018.04.041

Cited by 46 publications

(26 citation statements)

References 42 publications

(63 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, for all tested waters, the energy consumption was correlated with the pollutants removal as electrical energy per order ( E EO ) in (kW m −3 order −1 ), according to Eq. 3 (Bolton et al 2001 ; Bessegato et al 2018 ): where P is the nominal power (kW) of the system, t (h) is the processing time, V (L) is the volume of water treated, and C represents the concentration of COD. The nominal power ( P ) was assumed equal to the energy consumption of the UV lamp.…”

Section: Methodsmentioning

confidence: 99%

Photoelectrocatalysis on TiO2 meshes: different applications in the integrated urban water management

Collivignarelli

Abbà

Miino

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

Recently, among AOPs, photoelectrocatalysis (PEC) on TiO2 is gaining interest. In this study, five different real waters sampled in four different points of the integrated urban water management (IUWM) system were tested with PEC and UV alone, for comparison. This work aims to verify the effect of the PEC suggesting the optimal position in IUWM system where the PEC should be located to obtain the best performance. In groundwaters (GWs), PEC effectively removed atrazine-based compounds (> 99%), trichloroethylene, and perchloroethylene (96%), after 15 min of reaction time. However, given the low concentrations of emerging compounds, the synergistic effect of UV radiation with the catalyst and with the polarization of the mesh was not visible, with very few differences compared with the results obtained with UV alone. Pharmaceutical industrial wastewater (IWW) showed a significant increase in biodegradability after 2 h, both if subjected to PEC or UV (200%), despite the absence of COD removal. The PEC applied on IWW from a sewage sludge treatment plant allowed to effectively remove the COD (39.6%) and increase the biodegradability (300%). Good results in terms of COD removal (33.9%) and biodegradability increase (+900%) were also achieved testing PEC on wastewater treatment plant effluent. Except for GWs, PEC allowed significant EEO savings respect to UV alone (76.2–99.1%).

show abstract

Section: Methodsmentioning

confidence: 99%

Photoelectrocatalysis on TiO2 meshes: different applications in the integrated urban water management

Collivignarelli

Abbà

Miino

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…The application of ozonation processes in the treatment of WW is insufficient, with scarce examples of organic matter removal and energy consumption. Most of the authors studied the degradation of emerging contaminants and textile dye removal [91][92][93]; however, the degradation of the organic matter load of winery wastewater requires more demanding treatments, with higher energy consumption [20].…”

Section: Effect Of Fe 2+ Concentrationmentioning

confidence: 99%

Combination of Coagulation–Flocculation–Decantation and Ozonation Processes for Winery Wastewater Treatment

Jorge

Teixeira

Matos

et al. 2021

IJERPH

View full text Add to dashboard Cite

This research assessed a novel treatment process of winery wastewater, through the application of a chemical-based process aiming to decrease the high organic carbon content, which represents a difficulty for wastewater treatment plants and a public health problem. Firstly, a coagulation–flocculation–decantation process (CFD process) was optimized by a simplex lattice design. Afterwards, the efficiency of a UV-C/ferrous iron/ozone system was assessed for organic carbon removal in winery wastewater. This system was applied alone and in combination with the CFD process (as a pre- and post-treatment). The coagulation–flocculation–decantation process, with a mixture of 0.48 g/L potassium caseinate and 0.52 g/L bentonite at pH 4.0, achieved 98.3, 97.6, and 87.8% removals of turbidity, total suspended solids, and total polyphenols, respectively. For the ozonation process, the required pH and ferrous iron concentration (Fe2+) were crucial variables in treatment optimization. With the application of the best operational conditions (pH = 4.0, [Fe2+] = 1.0 mM), the UV-C/ferrous iron/ozone system achieved 63.2% total organic carbon (TOC) removal and an energy consumption of 1843 kWh∙m−3∙order−1. The combination of CFD and ozonation processes increased the TOC removal to 66.1 and 65.5%, respectively, for the ozone/ferrous iron/UV-C/CFD and CFD/ozone/ferrous iron/UV-C systems. In addition, the germination index of several seeds was assessed and excellent values (>80%) were observed, which revealed the reduction in phytotoxicity. In conclusion, the combination of CFD and UV-C/ferrous iron/ozone processes is efficient for WW treatment.

show abstract

“…To select advanced oxidation systems to remove pollutants, attention is paid to the consumption of electrical energy (Moussavi &Rezaei 2017). Electrical energy consumption (EEC, kw.h/m 3 ) in the pier waste sludge catalyst/PMS system at pH=3, catalyst dose 80 mg/L, PMS concentration 150 mg/L, phenol concentration 50 mg/L, and reaction time 100 min was quanti ed according to the following formula (Bessegato et al 2018, Dhaka et al 2018, Tavasol et al 2021.…”

Section: Energy Consumption By the Systemmentioning

confidence: 99%

Application of Pier Waste Sludge for Catalytic Activation of Proxy-monosulfate and Phenol Elimination From a Petrochemical Wastewater

Khoshtinat

Tabatabaie

Ramavandi

et al. 2021

Preprint

View full text Add to dashboard Cite

This investigation aimed to remove phenol from a real wastewater (taken from a petrochemical company) by activating peroxy-monosulfate (PMS) using catalysts extracted from pier waste sludge. The physical and chemical properties of the catalyst were evaluated by FE-SEM/EDS, XRD, FTIR, and TGA/DTG tests. The functional groups of O-H, C-H, CO32-, C-H, C-O, N-H, and C-N were identified on the catalyst surface. Also, the crystallinity of the catalyst before and after reaction with petrochemical wastewater was 103.4 nm and 55.8 nm, respectively. Operational parameters of pH (3-9), catalyst dose (0-100 mg/L), phenol concentration (50-250 mg/L), and PMS concentration (0-250 mg/L) were tested to remove phenol. The highest phenol removal rate (94%) was obtained at pH=3, catalyst dose of 80 mg/L, phenol concentration of 50 mg/L, PMS concentration of 150 mg/L, and contact time of 150 min. Phenol decomposition in petrochemical wastewater followed the first-order kinetics (k> 0.008 min-1, R2> 0.94). Based on the reported results, it was found that the pH factor is more important than other factors in phenol removal. The catalyst stability test was performed for up to five cycles and phenol removal in the fifth cycle was reduced to 42%. Also, the energy consumption in this study was 77.69 kw.h/m3. According to the results, the pier waste sludge catalyst/PMS system is a critical process for eliminating phenol from petrochemical wastewater.

show abstract

Assessment of several advanced oxidation processes applied in the treatment of environmental concern constituents from a real hair dye wastewater

Cited by 46 publications

References 42 publications

Photoelectrocatalysis on TiO2 meshes: different applications in the integrated urban water management

Photoelectrocatalysis on TiO2 meshes: different applications in the integrated urban water management

Combination of Coagulation–Flocculation–Decantation and Ozonation Processes for Winery Wastewater Treatment

Application of Pier Waste Sludge for Catalytic Activation of Proxy-monosulfate and Phenol Elimination From a Petrochemical Wastewater

Contact Info

Product

Resources

About