[article]
| Titre : |
Deep treatment of ammonia nitrogen tannery wastewater by an electro-Fenton system |
| Type de document : |
texte imprimé |
| Auteurs : |
Chen Hui, Auteur ; Li-Wei Chen, Auteur ; Li Shu Qing, Auteur ; Yao Hu, Auteur ; Shan Zhi-Hua, Auteur ; Dai Rui, Auteur ; Jie Yi, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 421-428 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Azote ammoniacal
Eau -- Épuration -- Élimination des composés organiques
Eaux usées -- Epuration
Eaux usées -- Teneur en azote ammoniacal
Énergie -- Consommation
Fenton, Réaction de
Tannage -- Déchets
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The effect of an Electro-Fenton system on the deep treatment of ammonia nitrogen (NH3-N) and corresponding removal rate was investigated in this article. By using simulated ammonia nitrogen wastewater, it included a Cl- concentration of 3000 mg/L, SO42- concentration of 100 mg/L according to conventional leather wastewater conditions. Furthermore, Cl- and SO42- can be used as supporting electrolyte. After pretreatment, the ammonia nitrogen concentration kept about 100 mg/L. The optimal treatment conditions of Electro-Fenton system were obtained throughout single factors experiments. The current density was 150 A/m2, the reaction time was 30 min, the plate spacing distance was 40 mm, and the reaction temperature was adjusted to 40°C. After flocculation treatment of leather wastewater, the ammonia nitrogen concentration was 142.11 mg/L, and the tanning wastewater was further treated with an Electro-Fenton system. The final ammonia nitrogen concentration was 11.23 mg/L, which meets the first-level wastewater discharge standard. The removal rate was 92.10%, which indicated that the Electro-Fenton system is one kind of clean, feasible and sustainable treatment method for the deep treatment of ammonia nitrogen in tannery wastewater. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Treatment of simulated ammonia nitrogen wastewater by electro-Fenton - Tanning wastewater treatment - Measurement of ammonia nitrogen concentration - COD cr measurement of tanning wastewater - Energy consumption during of electro-Fenton treatment
- RESULTS AND DISCUSSION : Treatment of simulated ammonia nitrogen wastewater by electro-Fenton - Ammonia nitrogen removal from tannery wastewater by electro-Fenton - Energy consumption by the electro-Fenton system |
| En ligne : |
https://drive.google.com/file/d/1Hsz8qjc34jlp6868Xbet1lVoQWfrmfYX/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33254 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 11 (11/2019) . - p. 421-428
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Deep treatment of ammonia nitrogen tannery wastewater by an electro-Fenton system in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 11 (11/2019)
