Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology
The elimination of organic compounds in coffee processing effluent utilizing electrochemical oxidation (ECO) as well as a combination of electrochemical oxidation (ECO) and ultraviolet and hydrogen peroxide (UV/H2O2) was explored. Then, the percentage reduction of chemical oxygen demand (COD) was in...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2022-01-01
|
| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/1734411 |
| _version_ | 1827000476784132096 |
|---|---|
| author | Firomsa Bidira Abdi Zerihun Asmelash Samuel Seifu Kebede Debela Temesgen Abeto Amibo |
| author_facet | Firomsa Bidira Abdi Zerihun Asmelash Samuel Seifu Kebede Debela Temesgen Abeto Amibo |
| author_sort | Firomsa Bidira Abdi |
| collection | DOAJ |
| description | The elimination of organic compounds in coffee processing effluent utilizing electrochemical oxidation (ECO) as well as a combination of electrochemical oxidation (ECO) and ultraviolet and hydrogen peroxide (UV/H2O2) was explored. Then, the percentage reduction of chemical oxygen demand (COD) was investigated. The effect of different experimental factors such as solution pH, sodium chloride (NaCl) concentration, calcium chloride (CaCl2) concentration, electric current, electrolysis duration, and hydrogen peroxide dosage on the percent removal efficiency of the hybrid electrochemical oxidation (ECO) with the ultraviolet and hydrogen peroxide (UV/H2O2) process has been investigated. The response surface methodology (RSM) based on central composite design (CCD) was used to organize the trial runs and optimize the results. The hybrid electrochemical oxidation (ECO) with the ultraviolet and hydrogen peroxide (UV/H2O2) process removed 99.61% of the chemical oxygen demand (COD) with a low power usage of 1.12 kWh/m3 compared to the other procedures, according to the experimental data analysis. These findings were obtained with a pH of 7, a current of 0.40 A, 1.5 g of CaCl2, and a total electrolysis period of 40 minutes. When it came to eliminating organic compounds from coffee manufacturing effluent, CaCl2 outperformed NaCl. Analysis of variance (ANOVA) with 95% confidence limits was used to examine the significance of independent variables and their interactions. |
| first_indexed | 2024-04-11T22:13:42Z |
| format | Article |
| id | doaj.art-7d487974d9394c548ace5120b63c79bb |
| institution | Directory Open Access Journal |
| issn | 1687-8779 |
| language | English |
| last_indexed | 2025-02-18T10:44:54Z |
| publishDate | 2022-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj.art-7d487974d9394c548ace5120b63c79bb2024-11-02T05:27:35ZengHindawi LimitedInternational Journal of Analytical Chemistry1687-87792022-01-01202210.1155/2022/1734411Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface MethodologyFiromsa Bidira Abdi0Zerihun Asmelash Samuel1Seifu Kebede Debela2Temesgen Abeto Amibo3Faculty of Civil and Environmental EngineeringFaculty of Civil and Environmental EngineeringFaculty of Civil and Environmental EngineeringSchool of Chemical EngineeringThe elimination of organic compounds in coffee processing effluent utilizing electrochemical oxidation (ECO) as well as a combination of electrochemical oxidation (ECO) and ultraviolet and hydrogen peroxide (UV/H2O2) was explored. Then, the percentage reduction of chemical oxygen demand (COD) was investigated. The effect of different experimental factors such as solution pH, sodium chloride (NaCl) concentration, calcium chloride (CaCl2) concentration, electric current, electrolysis duration, and hydrogen peroxide dosage on the percent removal efficiency of the hybrid electrochemical oxidation (ECO) with the ultraviolet and hydrogen peroxide (UV/H2O2) process has been investigated. The response surface methodology (RSM) based on central composite design (CCD) was used to organize the trial runs and optimize the results. The hybrid electrochemical oxidation (ECO) with the ultraviolet and hydrogen peroxide (UV/H2O2) process removed 99.61% of the chemical oxygen demand (COD) with a low power usage of 1.12 kWh/m3 compared to the other procedures, according to the experimental data analysis. These findings were obtained with a pH of 7, a current of 0.40 A, 1.5 g of CaCl2, and a total electrolysis period of 40 minutes. When it came to eliminating organic compounds from coffee manufacturing effluent, CaCl2 outperformed NaCl. Analysis of variance (ANOVA) with 95% confidence limits was used to examine the significance of independent variables and their interactions.http://dx.doi.org/10.1155/2022/1734411 |
| spellingShingle | Firomsa Bidira Abdi Zerihun Asmelash Samuel Seifu Kebede Debela Temesgen Abeto Amibo Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology International Journal of Analytical Chemistry |
| title | Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology |
| title_full | Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology |
| title_fullStr | Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology |
| title_full_unstemmed | Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology |
| title_short | Wastewater Treatment Using a Photoelectrochemical Oxidation Process for the Coffee Processing Industry Optimization of Chemical Oxygen Demand (COD) Removal Using Response Surface Methodology |
| title_sort | wastewater treatment using a photoelectrochemical oxidation process for the coffee processing industry optimization of chemical oxygen demand cod removal using response surface methodology |
| url | http://dx.doi.org/10.1155/2022/1734411 |
| work_keys_str_mv | AT firomsabidiraabdi wastewatertreatmentusingaphotoelectrochemicaloxidationprocessforthecoffeeprocessingindustryoptimizationofchemicaloxygendemandcodremovalusingresponsesurfacemethodology AT zerihunasmelashsamuel wastewatertreatmentusingaphotoelectrochemicaloxidationprocessforthecoffeeprocessingindustryoptimizationofchemicaloxygendemandcodremovalusingresponsesurfacemethodology AT seifukebededebela wastewatertreatmentusingaphotoelectrochemicaloxidationprocessforthecoffeeprocessingindustryoptimizationofchemicaloxygendemandcodremovalusingresponsesurfacemethodology AT temesgenabetoamibo wastewatertreatmentusingaphotoelectrochemicaloxidationprocessforthecoffeeprocessingindustryoptimizationofchemicaloxygendemandcodremovalusingresponsesurfacemethodology |