Treatment of pulp and paper mill wastewater by solar photo-Fenton process

Ginni, G.; Adishkumar, S.; Banu, J. Rajesh; Yogalakshmi, N.

doi:10.1080/19443994.2013.794114

Cited by 38 publications

(14 citation statements)

References 22 publications

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“…However, the effluents still contain parts of toxic organics, high color, and (suspended solids) SS, which need further treatment [4,6,18]. Coagulation and Fenton techniques were considered as the efficient and advanced treatment approaches, which have been applied in the wastewater treatment field [19]. During the reported processes, large amounts of sludge, high cost, and corrosion were generated, resulting in secondary pollution [20].…”

Section: Introductionmentioning

confidence: 99%

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

et al. 2019

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Bi2WO6 assembled by flower-like microspheres and nanosheets were controllably synthesized through a one-step hydrothermal approach. Multiple technologies, including X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and UV–Vis diffuse reflectance spectrum (UV–Vis), were carried out to characterize the as-synthesized samples. The photocatalytic efficiency of Bi2WO6 synthesized with a series of temperature and pH values shows different morphologies and photocatalytic properties. The photocatalyst (Bi2WO6) synthesized at 220 °C and pH of 7 exhibited the best photocatalytic performance, with the methylene blue (MB) degradation approaching 91.6% after reaction time of 60 min. Free radical capture experiments indicate that •OH is the primary reactive species in the methylene blue (MB) degradation reaction, h+ and •O2− contribute negligible influence, while the addition of H2O2 significantly improves the photocatalytic activity of Bi2WO6. Biodegraded poplar preconditioning refiner chemical alkaline peroxide mechanical pulp wastewater (PPW) was treated over Bi2WO6 under UV light (Bi2WO6/UV/H2O2); chemical oxygen demand (CODCr) and color degradation rate were 85.8% and 92.0%, respectively. These results show that Bi2WO6 semiconductors can be introduced as an efficient and stable photocatalyst for industry wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

et al. 2019

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“…5 The discharge of high COD and colored wastewater into the environment causes loss of environmental aesthetics, death of aquatic animals as well as profoundly affecting the terrestrial ecosystem. [6][7][8][9] Pulp and paper industries are one the highly polluting industries as they use woody and non-woody lignocellulose compounds as a raw material and generate lignocelluloses and other toxic compounds during reaction between lignin and organic compounds. [10][11][12] The ministry of environment, forest, and climate change (MOEFCC) and central pollution control board (CPCB) have listed the pulp and paper industry wastewater in the "red category", which provide a serious pollution threat.…”

Section: Introductionmentioning

confidence: 99%

Continuous electrocoagulation treatment of pulp and paper mill wastewater: operating cost and sludge study

et al. 2016

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“…The amount of wastewater produced during the paper production process is approximately 75-225 m 3 /ton. The resulting brown wastewater has high COD (Ginni et al, 2013). In studies carried out up to now, paper industries have found that lignin, stilbene, phenol, dioxin, chloride, furan, phenol and sulfur, etc.…”

Section: Fe(ii) + H 2 Omentioning

confidence: 99%

Evaluation of Color and COD Removal by Fenton and Photo-Fenton Processes from Industrial Paper Wastewater

Kaya

Aşçı

2019

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Advanced oxidation processes which produce hydroxyl radicals with high oxidation potential have come forward among the methods used in the treatment of industrial wastewaters containing organic pollutants that are difficult to biodegrade. The application of UV rays with the fentanyl reactivity showed that the organic material is more fragmented and the degradation rate is higher. In this study, Fenton process and photo-Fenton process were applied to industrial wastewater of paper. In experimental studies, optimum experimental parameters such as iron ion and hydrogen peroxide concentrations, pH, temperature, reaction time, mixing speed and light intensity were determined and processes were compared. 70% color and 51% chemical oxygen demand (COD) removal in the Fenton process; 96% color and 90% COD removal in the photo-Fenton process were obtained. The addition of UV radiation to the oxidation process resulted in better degradation of organic contaminants and enhanced color and COD removal efficiency. Although the optimum reaction time of the Fenton process was 120 minutes, the optimum reaction time of the photo-Fenton process was 60 minutes.

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Treatment of pulp and paper mill wastewater by solar photo-Fenton process

Cited by 38 publications

References 22 publications

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

Continuous electrocoagulation treatment of pulp and paper mill wastewater: operating cost and sludge study

Evaluation of Color and COD Removal by Fenton and Photo-Fenton Processes from Industrial Paper Wastewater

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