Dye wastewater treatment : photocatalysis and the synergies of photocatalytic oxidation with Fenton reagent / Ding Shao-Lan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 93, N° 3 (05-06/2009)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 93, N° 3 (05-06/2009) . - p. 103-107 Titre : Dye wastewater treatment : photocatalysis and the synergies of photocatalytic oxidation with Fenton reagent Type de document : texte imprimé Auteurs : Ding Shao-Lan, Auteur ; Cheng Chun-Lei, Auteur ; Wang Peng, Auteur ; Wang Rui, Auteur ; Liu Jing, Auteur Année de publication : 2009 Article en page(s) : p. 103-107 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Photocatalysis and the synergies of photocatalytic oxidation with Fenton reagent were used to treat the dye wastewater of Beijing Fanbo Science & Technology C., Ltd. Through the orthogonal experiment the optimal conditions of photocatalysis were obtained. Under such conditions, the removal rate of CODcr was 63 % while the removal rate of "chromaticity" was 70 %. In experiments on the synergies of photocatalytic oxidation with Fenton reagent, the optimal conditions were : H2O + FeSO4.7H2O2 = 12ml/l + 1,7g/L, TiO2 = 12g/L, the reaction pH was 3, qnc ghd photo-aeration time was 90min. Under such conditions, the removal rate of the wastewater CODcr reached 89,4 % while the removal rate of the chromaticity was 98 %, which was more than 50 % improvement on simple photocatalytic oxidation. Dye wastewater may include dye production wastewater and the print/dyeing industry wastewater. At present aromatic hydrocarbon and heterocyclic compounds are the primary components of the dyestuff and they have colour groups and polar groups. Dye developments mean that their structures are becoming more complex and their properties more stable. This brings greater difficulty to the treatment of print/dyeing wastewater. Dye wastewater has various characteristics such as the complex ingredients, high chromaticity, high CODcr and BOD, suspended matter and a wide range of water quality and quantity with hard to degrade substances. This wastewater is one of the more difficult to treat industry wastewaters. Take the CODcr of a dye user wastewater for example, it is usually between 500 and 1500mg/L while dye production wastewater is ussually over 10 000mg/L. According to the literature and reports, the decolouration methods for the dye wastewater are mainly biological oxidation process, hydrocarbonylation (chemical oxidation, photocatalysis and microwave synergy), adsorption, coagulation and electrochemical technologies. Fenton reagents hav become on much-discussed point. The Fenton method can be applied to the advanced disposal of the wastewater, the application of Fenton reagent and various improved systems in the wastewater disposal can be divided into two groups : one is solely as a disposal method to oxidize the organic wastewater ; the other is useed synergistically with other methods, such as coagulation sedimentation actived charcoal, biological process and photocatalysis. Beijing Fanbo Corporation is a fur chemical material company. Its wastewater is the typical acid dye production wastewater and contains leather chemical materials such as surfactants in high concentration and grease. The dyes typically have a M.Wt of 400 to 800 and are monosulphonic. The range of CODcr in the wastewater may the from 1500mg/L to 160 000mg/L and the ingredients complex. As a chemical provider to fur factories, the production wastewater from Fanbo Corporation not only has the same wastewater from Beijing Fanbo Science & Technology Co., ltd., by the synergy of photocatalytic oxidation with Fenton reagent and expected to solve the problems of dye wastewater, such as high CODcr, high chromatiticy, hard degradation and high cost. The particular wastewater is considered to have a moderate COD and average levels of colour. En ligne : https://drive.google.com/file/d/1eKTkhSQeJMTDoRZwwjKKQcXeEOrdMjA4/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5939 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
011443	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)