Q2. What is the force phenomenal for the degradation of 795 organic pollutants in the presence of ultrasound?
Acoustic cavitation is the forcing phenomenal for the degradation of 795 organic pollutants in the presence of ultrasound in water medium.
Q3. How many lissamine green B and crystal violet removals were observed by the researchers?
94% of lissamine green B and 83% of crystal violet removals 913 were observed by the researchers after 9 h of electrolysis in MFC combined with in situ EF 914 process.
Q4. how long did ef 869 step take to remove azobenzene?
EF 869 step being utilized as pre-treatment for mineralization of beta-blocker drug metoprolol: 1 h 870 EF pre-treatment step followed by aerobic biodegradation allowed 90% mineralization at 4 871 days.
Q5. What is the effect of a flow-through EF reactor on the removal of a?
Due to the increased mass and 558 electron transfer, flow-through EF reactor (in which solution is flow through anode and 559 cathode) was found more energy-efficient and more pollutant removal efficiency than 560 conventional EF reactor (Ma et al., 2016; Ren et al., 2016).
Q6. How much dye removal was observed for sea water and pure water medium?
Complete dye removal 860 was observed for sea water and pure water medium, while 94% of dye removal was observed 861 for natural mineral water medium.
Q7. What is the mechanism of degradation of orange in a 3D EF system?
Methyl orange degradation mechanism in a 3D EF system (where, MO is methyl 537 orange, NZVI/AC is nanoscale zero-valent iron/activated carbon and IP is intermediate 538 products).
Q8. What is the main reason behind the increase in pH 592?
Hydrogen evolution reaction by the water 591 reduction at the cathode surface (Eq. (25)) is the main reason behind the raise in solution pH 592 (Drogui et al., 2008).
Q9. What is the effect of combining EF and aerobic-microaerophilic process?
Combined EF and aerobic-microaerophilic process is able 932 to remove 86.4% COD, 85.8% color and 56.1% TOC of textile wastewater.
Q10. Why did the authors use sodium salts to form a layer at the cathode?
Due to this layer formation, the volume of active pores at cathode surface 622 reduces and results in lesser hydrogen peroxide formation.
Q11. How many times did Wang et al. remove RhB from water?
Wang et al. (2014a) used particle electrode prepared from steel slag for the removal 548 of RhB and obtained 82.4% and 65.45% of RhB removal with and without of air supply 549 within 60 min of electrolysis.
Q12. What is the effect of particle electrodes on the sorption process?
521These electrodes reduce the pollutant concentration by the sorption process, increasing the 522 ionic strength of the electrolytic cell and supplying additional iron species in the system.
Q13. What is the effect of the increased passivation rate of the electrodes on the degradation efficiency?
But the 980 sludge production and increased passivation rate of electrodes decreases the degradation 981 efficiency of this process.
Q14. What is the reason for the reduction in the performance of EF process?
This reduction in the performance of EF process is mainly related to the 421 difficulty to break the divalent cation- ericochrome black T complex by •OH.
Q15. What is the optimum pH for the sorption of 373 oxygen gas?
These pores are useful for the sorption of 373 oxygen gas supplied near the cathode surface and consequently results in higher amount of 374 hydrogen peroxide generation.
Q16. What is the effect of ultrasound on the hydroxyl radicals in the EF process?
In the presence of ultrasound, the electrolytically 807 produced hydrogen peroxide dissociated into hydroxyl radicals as: 808H O + ⟶ 2OH • (34) 809Oturan et al. (2008b) reported the order of relevance of the enhancing factors in SEF 810 process as: (1) enhanced production of hydroxyl radical and Fenton reaction kinetics by the 811 improved mass transfer rate of both reactants (ferric ions and oxygen) towards the cathode 812 surface for the electrochemical generation of Fenton’s reagent and its transfer into the 813 solution, (2) the additional hydroxyl radical generation by the sonolysis, and (3) pyrolysis of 814 organics at the time of bubble explosion.
Q17. What is the rate constant for the reaction 432 with hydroxyl radicals?
In this study, it was observed that the absolute rate constant for their reaction 432 with hydroxyl radicals increases in the order MeG < FCF < CV < MG.
Q18. What is the effect of magnesium and calcium on the removal of ericochrome black?
The presence of magnesium 419 and calcium in water medium reduced the dye removal efficiency of EF process for the dye 420 ericochrome black T.
Q19. How did they remove reactive brilliant blue?
422Xu et al. (2014) prepared graphene doped gas diffusion electrode using modified 423 Hummers' method and used for the removal of reactive brilliant blue in a three electrode 424 undivided cell of volume 200 mL.