2007
DOI: 10.1016/j.jhazmat.2007.04.020
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Studies on degradation of Methyl Orange wastewater by combined electrochemical process

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Cited by 95 publications
(41 citation statements)
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“…A notable improvement of decolorization efficiency was realized with applied voltage increasing from 300 mV to 500 mV. The increased production of oxidant such as hydrogen peroxide at higher applied voltage might be responsible for this improvement as indicated by other studies [11,43]. As electrolysis was performed under the relatively low voltage without water decomposition in present study, further increase of applied voltage did not result in the more generation of above active substance, thus only a slight enhancement was obtained when the applied voltage further increased from 700 mV to 900 mV and the following experiments were conducted at 700 mV unless otherwise stated.…”
Section: Studies Of Operating Factorssupporting
confidence: 54%
See 1 more Smart Citation
“…A notable improvement of decolorization efficiency was realized with applied voltage increasing from 300 mV to 500 mV. The increased production of oxidant such as hydrogen peroxide at higher applied voltage might be responsible for this improvement as indicated by other studies [11,43]. As electrolysis was performed under the relatively low voltage without water decomposition in present study, further increase of applied voltage did not result in the more generation of above active substance, thus only a slight enhancement was obtained when the applied voltage further increased from 700 mV to 900 mV and the following experiments were conducted at 700 mV unless otherwise stated.…”
Section: Studies Of Operating Factorssupporting
confidence: 54%
“…Comparatively, chemical-oxidative processes have been employed for nitrogen-containing organic compounds removals removal from aqueous solutions extensively as they can decompose molecules effectively. By omitting the generation of sludge from Fenton process and the utilization of photocatalyst, electrolysis technology exhibits promising future for nitrogen-containing organic compounds contamination controls among chemical-oxidative processes [10,11]. As higher applied voltage (almost up to 12 V) or current (up to 6 A) are often required in these processes [12][13][14], thus other alternatives should be explored to strengthen their efficiencies with energy conservation.…”
Section: Introductionmentioning
confidence: 99%
“…It also causes the dissociation of functional groups over the surface of the adsorbent. At lower pH (under acidic condition), MO occurs as quinoid form, while at higher pH it rearranges in azo structure [31]. The basic and acidic structures of MO are given below (Eq.…”
Section: Effect Of Initial Phmentioning
confidence: 99%
“…43 Nowadays, electrochemical oxidation technology is considered a green, efficient 44 method for the removal of contaminants from soil and water, owing to the strong 45 oxidative oxidants produced during electrolysis [14,15]. To date, electrochemical 46 process has been widely used for remediation of metal-contaminated aqueous systems, 47 with various metals as targets, including As, Pb, V, Cd [16][17][18] stronger direct electrochemical oxidation, and more active substances could also be 170 produced, both of which could promote the removal of Tl(I) [46]. With the aids of these oxidants, Tl(I) was oxidized satisfactorily to Tl(III) in a 215 current density of 5 mA cm -2 (Eq.…”
mentioning
confidence: 99%