The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater
The aim of this investigation was to study the impact of various reaction parameters on wastewater taken from Al-Wathba water treatment plant on Tigris River in south of Baghdad, Iraq with sodium hypochlorite solution. The parameters studied were sodium hypochlorite dose, contact time, initial feca...
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| Format: | Article |
| Language: | English |
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University of Baghdad/College of Engineering
2023-06-01
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| Series: | Iraqi Journal of Chemical and Petroleum Engineering |
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| Online Access: | https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/983 |
| _version_ | 1827913370786856960 |
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| author | Bashaer Mahmoud Namoos Majid I. Abdul-Wahab Wameath S. Abdul-Majeed |
| author_facet | Bashaer Mahmoud Namoos Majid I. Abdul-Wahab Wameath S. Abdul-Majeed |
| author_sort | Bashaer Mahmoud Namoos |
| collection | DOAJ |
| description |
The aim of this investigation was to study the impact of various reaction parameters on wastewater taken from Al-Wathba water treatment plant on Tigris River in south of Baghdad, Iraq with sodium hypochlorite solution. The parameters studied were sodium hypochlorite dose, contact time, initial fecal coliform bacteria concentration, temperature, and pH. In a batch reactor, different concentrations of sodium hypochlorite solution were used to disinfect 1L of water. The amount of hypochlorite ions in disinfected water was measured using an Iodimetry test for different reaction times, whereas the Most Probable Number (MPN) test was used to determine the concentration of coliform bacteria. Total Plate Count (TPC) was utilized in this study to count the number of colonies of common bacteria. Reaction variables that were examined showed that the increase in temperature, pH, and reaction time caused the concentration of Coliform bacteria to decrease, which in turn caused an accumulation-related increase in OCl- concentration. The optimum values of temperature and reaction pH were determined to be 8 and 29o C respectively. The kinetics of the reaction was examined in this study, and the results showed that Selleck model's order of reaction is two, with rate constants of 1.3791x10-5, 3.0806x10-5, and 5.738x10-5 L/(mole min) at 20o, 29o, and 37o C, respectively.
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| first_indexed | 2024-03-13T02:30:14Z |
| format | Article |
| id | doaj.art-7b8027e786d04fc19840897024e0d27c |
| institution | Directory Open Access Journal |
| issn | 1997-4884 2618-0707 |
| language | English |
| last_indexed | 2024-03-13T02:30:14Z |
| publishDate | 2023-06-01 |
| publisher | University of Baghdad/College of Engineering |
| record_format | Article |
| series | Iraqi Journal of Chemical and Petroleum Engineering |
| spelling | doaj.art-7b8027e786d04fc19840897024e0d27c2023-06-29T22:27:15ZengUniversity of Baghdad/College of EngineeringIraqi Journal of Chemical and Petroleum Engineering1997-48842618-07072023-06-0124210.31699/IJCPE.2023.2.8The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba WastewaterBashaer Mahmoud Namoos0Majid I. Abdul-Wahab1Wameath S. Abdul-Majeed2Chemical Engineering Department, College of Engineering, University of Baghdad, Baghdad, IraqChemical Engineering Department, College of Engineering, University of Baghdad, Baghdad, IraqChemical and Petrochemical Engineering Department, University of Nizwa, PC 616, POB 33, Sultanate of Oman The aim of this investigation was to study the impact of various reaction parameters on wastewater taken from Al-Wathba water treatment plant on Tigris River in south of Baghdad, Iraq with sodium hypochlorite solution. The parameters studied were sodium hypochlorite dose, contact time, initial fecal coliform bacteria concentration, temperature, and pH. In a batch reactor, different concentrations of sodium hypochlorite solution were used to disinfect 1L of water. The amount of hypochlorite ions in disinfected water was measured using an Iodimetry test for different reaction times, whereas the Most Probable Number (MPN) test was used to determine the concentration of coliform bacteria. Total Plate Count (TPC) was utilized in this study to count the number of colonies of common bacteria. Reaction variables that were examined showed that the increase in temperature, pH, and reaction time caused the concentration of Coliform bacteria to decrease, which in turn caused an accumulation-related increase in OCl- concentration. The optimum values of temperature and reaction pH were determined to be 8 and 29o C respectively. The kinetics of the reaction was examined in this study, and the results showed that Selleck model's order of reaction is two, with rate constants of 1.3791x10-5, 3.0806x10-5, and 5.738x10-5 L/(mole min) at 20o, 29o, and 37o C, respectively. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/983Water disinfection, Sodium hypochlorite, Most Probable Number Test, Selleck Model |
| spellingShingle | Bashaer Mahmoud Namoos Majid I. Abdul-Wahab Wameath S. Abdul-Majeed The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater Iraqi Journal of Chemical and Petroleum Engineering Water disinfection, Sodium hypochlorite, Most Probable Number Test, Selleck Model |
| title | The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater |
| title_full | The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater |
| title_fullStr | The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater |
| title_full_unstemmed | The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater |
| title_short | The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater |
| title_sort | effects of operating variables on efficancy of water disinfection by sodium hypochlorite using al wathba wastewater |
| topic | Water disinfection, Sodium hypochlorite, Most Probable Number Test, Selleck Model |
| url | https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/983 |
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