PVC degradation by Fenton reaction and biological decomposition

Martı́n, Tomás; Takáčová, Alžbeta; Gál, Miroslav; Marton, Marián; Ryba, Jozef

doi:10.1016/j.polymdegradstab.2015.07.005

Cited by 29 publications

(19 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AOPs include ozonation [10], photocatalysis [11], and the Fenton process [12]. The classic Fenton oxidation showed some features [13], as nonselectivity oxidation derived by hydroxyl radical (·OH) generated from H 2 O 2 with Fe(II) [14], fast reaction rate, low cost, and low toxicity of reagents used. However, the homogeneous Fenton process also showed some significant drawbacks, such as the additional amounts of Fe 2+ increasing the formation of ferric hydroxide sludge [15], and the narrow available range of solution pH values (2)(3)(4) [16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Degradation of benzotriazole by a novel Fenton-like reaction with mesoporous Cu/MnO 2 : Combination of adsorption and catalysis oxidation

Zhang

Cao

et al. 2016

Applied Catalysis B: Environmental

227

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…leached from the MCM, a homogeneous Fenton-like reaction would occur and lead to14 the decay of BZA. The effect of pH on ions leaching and its role in oxidation were investigated by altering the pH of the initial solution.…”

mentioning

confidence: 99%

Degradation of benzotriazole by a novel Fenton-like reaction with mesoporous Cu/MnO 2 : Combination of adsorption and catalysis oxidation

Zhang

Cao

et al. 2016

Applied Catalysis B: Environmental

227

View full text Add to dashboard Cite

“…Respirometric tests allow the quantification of biodegradation, which is expressed as a percentage. Usually, the CH 4 or biogas produced is corrected subtracting the amount produced in a blank and then is compared to the theoretical production, based on the carbon content in the sample [84,[88][89][90][91][92][93][94]. Variations of this method include the measurement of CO 2 , and the inclusion of liquid and gas phases [87,95].…”

Section: Analytical Techniques Used To Assess Plastic Degradation Andmentioning

confidence: 99%

“…Conventional plastics, such as cellulose acetate [115], have shown negligible biodegradation, as well as PETE [107]. The feasibility of biodegradation of PVC was obtained only if the plastic was subjected previously to a Fenton oxidation process [93]. In fact, inhibition of biogas production was reported due to the presence of HDPE, PP, and PS [116].…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Degradation of Plastics under Anaerobic Conditions: A Short Review

et al. 2020

View full text Add to dashboard Cite

Plastic waste is an issue of global concern because of the environmental impact of its accumulation in waste management systems and ecosystems. Biodegradability was proposed as a solution to overcome this problem; however, most biodegradable plastics were designed to degrade under aerobic conditions, ideally fulfilled in a composting plant. These new plastics could arrive to anaerobic environments, purposely or frequently, because of their mismanagement at the end of their useful life. This review analyzes the behavior of biodegradable and conventional plastics under anaerobic conditions, specifically in anaerobic digestion systems and landfills. A review was performed in order to identify: (a) the environmental conditions found in anaerobic digestion processes and landfills, as well as the mechanisms for degradation in those environments; (b) the experimental methods used for the assessment of biodegradation in anaerobic conditions; and (c) the extent of the biodegradation process for different plastics. Results show a remarkable variability of the biodegradation rate depending on the type of plastic and experimental conditions, with clearly better performance in anaerobic digestion systems, where temperature, water content, and inoculum are strictly controlled. The majority of the studied plastics showed that thermophilic conditions increase degradation. It should not be assumed that plastics designed to be degraded aerobically will biodegrade under anaerobic conditions, and an exact match must be done between the specific plastics and the end of life options that they will face.

show abstract

“…The same Figure 3 shows that during the it is still within the range where Fenton type reactions are carried out optimally. [38,39] The monitoring of the potential difference showed that at the end of the reaction a potential of 17.5 V was held, which was 2.4 V below the initial value. This variation can be attributed to the generation of both negative and positive ions during the degradation process, which facilitate the electrical flow between the electrodes.…”

Section: Concentration Profiles During Pef Treatmentmentioning

confidence: 99%

Photo-assisted electrochemical degradation of polychlorinated biphenyls with boron-doped diamond electrodes

Gutiérrez-Hernández

Bello-Mendoza

Hernández-Ramírez

et al. 2017

Environmental Technology

View full text Add to dashboard Cite

The capacity of the photo electro-Fenton (PEF) process to degrade a mixture of seven polychlorinated biphenyl (PCB) congeners was studied. Boron-doped diamond (BDD) sheets were used as anode and cathode in the experimental electrolytic cell that contained NaSO 0.05 M at pH 3 as supporting electrolyte for the electro generation of HO at the cathode. The effects of UV light intensity (254 and 365 nm), current density (8, 16 and 24 mA cm) and ferrous ion dosage (0.1, 0.2 and 0.3 mM) on PCB (C = 50 μg L) degradation were evaluated. The highest level of PCB degradation (97%) was achieved with 16 mA cm of current density, 0.1 mM of ferrous ion and UV light at 365 nm as irradiation source after 6 h of reaction. PCB28, PCB52 and PCB101 were not detected after 0.5, 1.5 and 3 h of reaction, respectively. The degradation of PCB138, PCB153, PCB180 and PCB209 was also high (>95%). The PEF system outperformed other oxidation processes (electro-Fenton, anodic oxidation, Fenton, photo-Fenton and UV photolysis) in terms of reaction rate and degradation efficiency. These results demonstrate for the first time the degradation of PCB209, the most highly chlorinated PCB congener, by an advanced electrochemical oxidation process.

show abstract

PVC degradation by Fenton reaction and biological decomposition

Cited by 29 publications

References 31 publications

Degradation of benzotriazole by a novel Fenton-like reaction with mesoporous Cu/MnO 2 : Combination of adsorption and catalysis oxidation

Degradation of benzotriazole by a novel Fenton-like reaction with mesoporous Cu/MnO 2 : Combination of adsorption and catalysis oxidation

Degradation of Plastics under Anaerobic Conditions: A Short Review

Photo-assisted electrochemical degradation of polychlorinated biphenyls with boron-doped diamond electrodes

Contact Info

Product

Resources

About