Electrocoagulation in batch mode for the removal of the chemical oxygen demand of an effluent from slaughterhouse wastewater in Lima Peru: Fe and Al electrodes

Reátegui-Romero, Warren; Tuesta-Tinoco, Santiago A.; Cruz, Carlos E.Ochoa De la; Huamán-Ccopa, Joaquín A.; King-Santos, María E.; Estrada-Huamaní, Edward F.; Gutiérrez, Wilfredo Bulege; Yuli-Posadas, Ricardo Ángel; Fernández-Guzmán, Victor

doi:10.5004/dwt.2020.26175

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reátegui-Romero et al ( 2020) treated the wastewater from a meat plant in (Lima Peru) by electrocoagulation (with aluminum and iron electrodes) using a batch bioreactor, and the removal efficiencies for turbidity and COD in meat industry and slaughterhouse wastewaters were 99% and 53-59%, for aluminum electrodes, and 81.5-88.5% and 59-60% for iron electrodes, respectively [102].…”

Section: Electrochemical Processesmentioning

confidence: 99%

Characterization of Slaughterhouse Wastewater and Development of Treatment Techniques: A Review

Dalhatou

Wilson

et al. 2022

Processes

View full text Add to dashboard Cite

Commercialization in the meat-processing industry has emerged as one of the major agrobusiness challenges due to the large volume of wastewater produced during slaughtering and cleaning of slaughtering facilities. Slaughterhouse wastewater (SWW) contains proteins, fats, high organic contents, microbes, and other emerging pollutants (pharmaceutical and veterinary residues). It is important to first characterize the wastewater so that adequate treatment techniques can be employed so that discharge of this wastewater does not negatively impact the environment. Conventional characterization bulk parameters of slaughterhouse wastewater include pH, color, turbidity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total suspended solids (TSS), total nitrogen (TN), total phosphorus (TP), and coliform counts. Characterization studies conducted have revealed the effects of the pollutants on microbial activity of SWW through identification of toxicity of antibiotic-resistant strains of bacteria. Due to the high-strength characteristics and complex recalcitrant pollutants, treatment techniques through combined processes such as anaerobic digestion coupled with advanced oxidation process were found to be more effective than stand-alone methods. Hence, there is need to explore and evaluate innovative treatments and techniques to provide a comprehensive summary of processes that can reduce the toxicity of slaughterhouse wastewater to the environment. This work presents a review of recent studies on the characterization of SWW, innovative treatments and technologies, and critical assessment for future research.

show abstract

Section: Electrochemical Processesmentioning

confidence: 99%

Characterization of Slaughterhouse Wastewater and Development of Treatment Techniques: A Review

Dalhatou

Wilson

et al. 2022

Processes

View full text Add to dashboard Cite

show abstract

“…A key characteristic of wastewater coagulation is removing suspended solids (SS) besides organic matter. However, the highest efficiency of COD removal during the chemical coagulation process of slaughterhouse wastewater was 45-75%, achieved by adding aluminum salts, iron, and polymer compounds [15,16]. The PAC is also a pre-polymerized coagulant, which has recently been broadly used in water treatment in the United States, Canada, China, Italy, France, and the UK [17,18].…”

Section: Introductionmentioning

confidence: 99%

Slaughterhouse Wastewater Treatment by Integrated Chemical Coagulation and Electro-Fenton Processes

et al. 2022

View full text Add to dashboard Cite

The slaughterhouse industry produces large amounts of highly polluted wastewater which needs to be treated before being discharged water. Thus, this work was conducted to investigate the feasibility of treating slaughterhouse wastewater using combined chemical coagulation and electro-Fenton methods. We studied the effect of process parameters such as polyaluminum chloride (PAC) concentration (25, 50, 75, 100 mg/L) for chemical coagulation and hydrogen peroxide concentration (500, 1000, 1500, 2000, 2500, 3000, 4000 mg/L), the pH of the solution (3, 5, 7, 10), and the reaction time (5, 10, 15, 30, 45, 75, 120 min) and the voltage (10, 20, 30, 40 V) on the removal of chemical oxygen demand (COD), biochemical oxygen demand (BOD), total suspended solids (TSS), total Kjeldahl nitrogen (TKN), and fecal coliforms (FC). The optimum removal efficiency for the electro-Fenton process was obtained at PAC = 75 mg/L, reaction time = 75 min, pH = 3, H2O2 = 2500 mg/L, and V = 20 V, which resulted in the removal efficiency of 89.55% for COD, 88.88% for BOD, 91.27% for TSS, 69.23% for TKN, and 100% for FC. The findings demonstrated that combined chemical coagulation and electro-Fenton processes effectively and efficiently treat slaughterhouse wastewater. The results of this research can be used by competent authorities to increase the efficiency of slaughterhouse wastewater treatment and to protect the environment.

show abstract

Removal of organic contaminants from the water used to wash the tanks of trucks transporting diesel: electrocoagulation in batch mode

Lostaunau-Silvera,

Puris-Naupay,

Zaldivar-Alvarez

et al. 2023

Desalination and Water Treatment

View full text Add to dashboard Cite

Electrocoagulation in batch mode for the removal of the chemical oxygen demand of an effluent from slaughterhouse wastewater in Lima Peru: Fe and Al electrodes

Cited by 4 publications

References 0 publications

Characterization of Slaughterhouse Wastewater and Development of Treatment Techniques: A Review

Characterization of Slaughterhouse Wastewater and Development of Treatment Techniques: A Review

Slaughterhouse Wastewater Treatment by Integrated Chemical Coagulation and Electro-Fenton Processes

Removal of organic contaminants from the water used to wash the tanks of trucks transporting diesel: electrocoagulation in batch mode

Contact Info

Product

Resources

About