Combined coagulation-electrocoagulation process using biocoagulant from the Opuntia ficus-indica for treatment of cheese whey wastewater

This work reports a combined coagulation-electrocoagulation process using a biocoagulant from the Opuntia ficus-indica for treatment of cheese whey wastewater. The process parameters as pH, biocoagulant dosage, and current density were evaluated from the chemometric tools. A Box-Behnken design was u...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2023-04, Vol.195 (4), p.491-491, Article 491
Main Authors: Pacheco, Hugo G. J., Elguera, Naysha Y., Ancco, Midwar, Castro, Antonio E. L. F., Meza, Maria E. B., Almeida, Vitor C.
Format: Article
Language:English
Subjects:
Atmospheric Protection/Air Quality Control/Air Pollution
Biological Oxygen Demand Analysis
Cheese
Chemical oxygen demand
Coagulation
Current density
Dairy industry
Dairy products
Density currents
Dosage
Earth and Environmental Science
Ecology
Ecotoxicology
Electrocoagulation
Electrocoagulation - methods
Environment
Environmental Management
Environmental Monitoring
Environmental science
Industrial Waste - analysis
Milk
Monitoring/Environmental Analysis
Optimization
Opuntia
Opuntia ficus-indica
Oxygen
Oxygen requirement
Parameters
pH effects
Pollutants
Process parameters
Turbidity
Waste Disposal, Fluid - methods
Wastewater
Water Pollutants, Chemical
Whey
Whey - chemistry
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Summary:This work reports a combined coagulation-electrocoagulation process using a biocoagulant from the Opuntia ficus-indica for treatment of cheese whey wastewater. The process parameters as pH, biocoagulant dosage, and current density were evaluated from the chemometric tools. A Box-Behnken design was used, having as responses the removal percentages of turbidity and chemical oxygen demand (COD). The results showed that for the studied variable ranges, linear models were obtained and the pH was parameter more significant for treatment proposed. The pH showed synergic effect with the investigated parameters, while the biocoagulant dosage and density current showed antagonistic effects. The desirability function was used to optimization of process, and suggested values were pH 10.0, biocoagulant dosage of 4.4 g L −1 , and current density of 31.5 mA cm −2 , which showed removals of turbidity and COD of 98.9 and 83.8%, respectively.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-023-11095-y