Degradation of crystal violet (CV) from aqueous solutions using ozone, peroxone, electroperoxone, and electrolysis processes: a comparison study

被引：75

作者：

Abdi, Mastaneh ^{[1
]}

Balagabri, Mona ^{[1
]}

Karimi, Hazhir ^{[2
]}

Hossini, Hooshyar ^{[3
,4
]}

Rastegar, Seyed Omid ^{[5
]}

机构：

[1] Kermanshah Univ Med Sci, Students Res Comm, Kermanshah, Iran

[2] Univ Zakho, Dept Environm Sci, Fac Sci, Zakho, Kurdistan Regio, Iraq

[3] Kermanshah Univ Med Sci, Sch Publ Hlth, Res Ctr Environm Determinants Hlth RCEDH, Kermanshah, Iran

[4] Kermanshah Univ Med Sci, Fac Hlth, Dept Environm Hlth Engn, Kermanshah, Iran

[5] Univ Kurdistan, Dept Chem Engn, Sanandaj, Iran

来源：

APPLIED WATER SCIENCE | 2020年 / 10卷 / 07期

关键词：

Ozone; Peroxone; Crystal violet; AOPs; Platinum; WASTE-WATER; HYDROXYL RADICALS; RATE CONSTANTS; ADVANCED OXIDATION; OZONATION; REMOVAL; DYE; PERFORMANCE; ADSORPTION; PHENOL;

D O I：

10.1007/s13201-020-01252-w

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

In this study, the degradation of crystal violet (CV) was investigated by different oxidation processes; ozone (OZ), peroxone (PO), electrolysis (E), electrolysis/H2O2 (ECP), electroperoxone (EPO), and electrolysis/peroxene/H2O2 (EPOP). Main parameters including contact time, pH, CV concentration, and effect of scavengers were studied. The results showed that all processes were capable of CV decolorization. Among these processes, peroxone and electrolysis/peroxene/H2O2 with efficiency about>90% were more effective than other ones. A significant decrease in oxidation rate of CV was observed by adding scavengers. This fact was due to higher affinity to react with free radicals. To confirm degradation of CV, FTIR spectra and nitrate ion level were taken. Also, to recognize toxicity the treated wastewater was tested against coliform bacteria. Growths of Escherichia coli in EMB medium were observed. As a result, it confirms that the treated effluent can be discharged to environment.

引用

页数：10

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