Efficacité de la méthode d’électrocoagulation pour réduire la DCO, la DBO et les TSS dans les eaux usées de l’industrie du cuir: Application de la conception box-behnken
| Autor: | Edwar Aguilar-Ascón, Liliana Marrufo-Saldaña, Walter Neyra-Ascón |
|---|---|
| Přispěvatelé: | Aguilar Ascón, Edwar, Neyra Ascón, Walter |
| Rok vydání: | 2020 |
| Předmět: |
Electrocoagulación
Curtido Sewage business.industry Aluminum electrode General Chemical Engineering medicine.medical_treatment Ciencias / Medio ambiente Ecología Tanning General Chemistry Pulp and paper industry Box–Behnken design Industrial and Manufacturing Engineering Electrocoagulation Tratamiento del agua Wastewater Tannery industry purl.org/pe-repo/ocde/ford#2.11.04 [http] medicine Environmental science Water treatment business |
| Zdroj: | Repositorio Institucional-Ulima Universidad de Lima ULIMA-Institucional instacron:ULIMA |
| ISSN: | 1583-4433 |
| DOI: | 10.24264/lfj.20.3.1 |
| Popis: | Indexado en Scopus This study intends to assess the removal efficiency of the chemical oxygen demand (COD), biochemical oxygen demand (BOD), and total suspended solids (TSS) from raw tannery wastewater using electrocoagulation by aluminum electrodes as well as to determine the effects of its main operating factors. Therefore, the response surface methodology was applied through an experimental Box–Behnken design by considering the current intensity (I), treatment time (T), and pH levels as the factors. In addition, the BOD, COD, and TSS removal percentages were considered to be the response variables. The results indicate that the treatment time, current intensity, and pH level were significant for COD and TSS, whereas only the treatment time was significant at a confidence level of p-value < 0.05 for BOD. For COD, the optimal operating conditions were I = 3 A, T = 24 min, and pH = 8.4; for BOD, the optimal operating conditions were I = 3 A, T = 24 min, and pH = 5.5; and for TSS, the optimal operating conditions were I = 2.7 A, T = 19 min, and pH = 7.4. Under these conditions, removal efficiencies of 56.8%, 69.2%, 99.9% were observed for COD, BOD, and TSS, respectively. The results suggest that electrocoagulation is an effective method for removing the parameters under study; therefore, it is a viable alternative for reducing the pollution issues caused by the tannery industry. info:eu-repo/semantics/publishedVersion Revisión por pares |
| Databáze: | OpenAIRE |
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