Optimizing the Reduction of Total Suspended Solids in Pump Water from Fish Factories Through Electrocoagulation using Response Surface Methodology

Edwar Aguilar-Ascón, Walter Neyra-Ascón, Miguel Albrecht-Ruiz, Alonso Ibarra-Basurto

Research output: Contribution to journalArticle (Contribution to Journal)peer-review

Abstract

This study aims to optimize the removal of total suspended solids (TSS) in pump water from fish flour factories through electrocoagulation technology and to determine the effects of the main operation parameters. Pump water has high conductivity (40.1 mS), due to the presence of dissolved salts and contains high concentration of organic substances (12,360 mg/L of TSS and 520 mg/L of fats). In this study, pump water was treated in an electrocoagulation reactor with aluminum electrodes using Response Surface Methodology with a 3kfactorial design based on two factors, current intensity (I) of 8–13 A and treatment time (t) of 20–40 minutes. The percentage of TSS removed from the water was used as the response variable. The results revealed that I and t significantly (p < 0.05) influenced the process. In accordance, the optimal operational parameters for TSS removal were I = 13 A and t = 30 minutes. Using these conditions, TSS removal efficiency of 99.9% was achieved. The sewage sludge generated with these optimal process conditions indicated 19.3% of ash content, 6.2% of salt, 1.7% of aluminum, 0.3% of iron, 0.4% of potassium, 256 ppm of zinc, and 2.1% of phosphorus. Hence, the results of this study affirm that electrocoagulation can be considered as a solution for marine pollution caused by fishing industries.

Original languageEnglish
Pages (from-to)269-277
Number of pages9
JournalJournal of Ecological Engineering
Volume22
Issue number6
DOIs
StatePublished - 6 Jun 2021

Keywords

  • electrocoagulation
  • fish pumping water
  • fishmeal
  • optimization
  • response surface methodology
  • Total suspended solids (TSS)

COAR

  • Article

OECD Category

  • Ingeniería ambiental

Ulima Repository Subject

  • Pendiente

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