Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment
This study investigated different methodsof controlling the fat, oil and grease (FOG) in sewer systems. A comprehensive control program wasdevelopedfor the city of Mashhad (Iran) to maintain its sewer system and prevent blockages. The control program consisted of three parts: 1) fat, oil and grease...
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| Format: | Article |
| Language: | English |
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Iranian Research Organization for Science and Technology (IROST)
2018-07-01
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| Series: | Advances in Environmental Technology |
| Subjects: | |
| Online Access: | http://aet.irost.ir/article_764_8e93c060d9b57c841fd7220b81a9c489.pdf |
| _version_ | 1828912030004805632 |
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| author | Majid Pirooz Neda Akbari Mehdi Kamali Davoud Biria |
| author_facet | Majid Pirooz Neda Akbari Mehdi Kamali Davoud Biria |
| author_sort | Majid Pirooz |
| collection | DOAJ |
| description | This study investigated different methodsof controlling the fat, oil and grease (FOG) in sewer systems. A comprehensive control program wasdevelopedfor the city of Mashhad (Iran) to maintain its sewer system and prevent blockages. The control program consisted of three parts: 1) fat, oil and grease source control, 2) sewer system modification and 3) preventive maintenance. This program includedguidelinesfor food service establishments, which are the majorsources of (FOG). Food service establishments must implementbetter management practices to reduce (FOG)from entering the facility drain and install grease removal devices.As a part of preventive cleaning, theperformance of several surfactants was evaluated as a cleaning agent. A 50:50 mixture (10 v. % in water) of two industrial surfactants, one containing monoethyl amine and sulfonated lauryl alcohol and one containing nonylphenolethoxylate and potassium hydroxide,had the best performance and removed 80 % of the fat. Response Surface Methodology was used to determine the optimum conditions for the surfactant.The optimum conditions were acontact time of 36 h, shaking rate of 30 rpm andsurfactant concentration of 12.5%.The second part of the program consisted ofremoving dead zones and increasing wastewater velocity in the sewer lines to enhance thehydraulic condition of thesewer system and decrease fat deposition.Finally, a detailed and well-defined control program couldsolve FOG problems in sewer systems. |
| first_indexed | 2024-12-13T19:13:50Z |
| format | Article |
| id | doaj.art-94f3e39902964715bd95b8bb9d74579f |
| institution | Directory Open Access Journal |
| issn | 2476-6674 2476-4779 |
| language | English |
| last_indexed | 2024-12-13T19:13:50Z |
| publishDate | 2018-07-01 |
| publisher | Iranian Research Organization for Science and Technology (IROST) |
| record_format | Article |
| series | Advances in Environmental Technology |
| spelling | doaj.art-94f3e39902964715bd95b8bb9d74579f2022-12-21T23:34:20ZengIranian Research Organization for Science and Technology (IROST)Advances in Environmental Technology2476-66742476-47792018-07-014315516110.22104/aet.2019.2155.1107764Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatmentMajid Pirooz0Neda Akbari1Mehdi Kamali2Davoud Biria3Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, IranDepartment of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran3 Water treatment and wastewater Treatment Research Group, Environmental Research Institute, University of Isfahan, Isfahan, IranDepartment of Environmental Engineering, University of Tehran, Tehran, IranThis study investigated different methodsof controlling the fat, oil and grease (FOG) in sewer systems. A comprehensive control program wasdevelopedfor the city of Mashhad (Iran) to maintain its sewer system and prevent blockages. The control program consisted of three parts: 1) fat, oil and grease source control, 2) sewer system modification and 3) preventive maintenance. This program includedguidelinesfor food service establishments, which are the majorsources of (FOG). Food service establishments must implementbetter management practices to reduce (FOG)from entering the facility drain and install grease removal devices.As a part of preventive cleaning, theperformance of several surfactants was evaluated as a cleaning agent. A 50:50 mixture (10 v. % in water) of two industrial surfactants, one containing monoethyl amine and sulfonated lauryl alcohol and one containing nonylphenolethoxylate and potassium hydroxide,had the best performance and removed 80 % of the fat. Response Surface Methodology was used to determine the optimum conditions for the surfactant.The optimum conditions were acontact time of 36 h, shaking rate of 30 rpm andsurfactant concentration of 12.5%.The second part of the program consisted ofremoving dead zones and increasing wastewater velocity in the sewer lines to enhance thehydraulic condition of thesewer system and decrease fat deposition.Finally, a detailed and well-defined control program couldsolve FOG problems in sewer systems.http://aet.irost.ir/article_764_8e93c060d9b57c841fd7220b81a9c489.pdfsewer system maintenancefat oil and greasecontrol programchemical cleaningmashhad city |
| spellingShingle | Majid Pirooz Neda Akbari Mehdi Kamali Davoud Biria Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment Advances in Environmental Technology sewer system maintenance fat oil and grease control program chemical cleaning mashhad city |
| title | Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment |
| title_full | Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment |
| title_fullStr | Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment |
| title_full_unstemmed | Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment |
| title_short | Investigation of thecontrol of the fat, oil and grease in sewer lines and their removal by surfactant treatment |
| title_sort | investigation of thecontrol of the fat oil and grease in sewer lines and their removal by surfactant treatment |
| topic | sewer system maintenance fat oil and grease control program chemical cleaning mashhad city |
| url | http://aet.irost.ir/article_764_8e93c060d9b57c841fd7220b81a9c489.pdf |
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