Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor
The wastewater characteristics and some operational control parameters limit the efficiency of attached growth processes for petrochemical wastewater treatment. This study aims to determine the efficiency of a hybrid biological reactor treating actual petrochemical wastewater and to identify the ef...
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2022-10-01
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| Series: | Journal of Environmental Engineering and Landscape Management |
| Subjects: | |
| Online Access: | https://jau.vgtu.lt/index.php/JEELM/article/view/17633 |
| _version_ | 1817980285109665792 |
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| author | Mohd Elmuntasir Ahmed Andrzej Mydlarczyk Adel Al-Haddad |
| author_facet | Mohd Elmuntasir Ahmed Andrzej Mydlarczyk Adel Al-Haddad |
| author_sort | Mohd Elmuntasir Ahmed |
| collection | DOAJ |
| description |
The wastewater characteristics and some operational control parameters limit the efficiency of attached growth processes for petrochemical wastewater treatment. This study aims to determine the efficiency of a hybrid biological reactor treating actual petrochemical wastewater and to identify the efficiency determining factors. An up-flow biological reactor filled with bio-career was operated at two flow rates, two dissolved oxygen (DO) levels, and under anaerobic conditions. Due to the varying characteristics of actual petrochemical wastewater, efficiency limitations were manifested in many ways. However, the highest chemical oxygen demand and biochemical oxygen demand (BOD) removal efficiencies were 77.2% and 78.5%, respectively, and were achieved under aerobic operation at organic loading rates (OLRs) of 0.2 kg-COD/m3/d and hydraulic retention time (HRT) of 26.67 h (DO 4.0 mg/l). Anaerobically, the highest efficiency was 41.7 for both at 0.18 kg-COD/m3/d and 400 ml/min. The total organic carbon (TOC) removal stability was attributed to the presence of toxic chemicals and removal mechanisms other than biodegradation, as it tapered off at high loading. The nutrient removal efficiency was marginal, conceivably due to the high organics to nutrient ratio and toxic conditions of the wastewater promoting nutrient removal inside the biofilm.
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| first_indexed | 2024-04-13T22:51:14Z |
| format | Article |
| id | doaj.art-83cdb3a05ba44e36aa07fab10ede2424 |
| institution | Directory Open Access Journal |
| issn | 1648-6897 1822-4199 |
| language | English |
| last_indexed | 2024-04-13T22:51:14Z |
| publishDate | 2022-10-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Environmental Engineering and Landscape Management |
| spelling | doaj.art-83cdb3a05ba44e36aa07fab10ede24242022-12-22T02:26:09ZengVilnius Gediminas Technical UniversityJournal of Environmental Engineering and Landscape Management1648-68971822-41992022-10-0130310.3846/jeelm.2022.17633Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactorMohd Elmuntasir Ahmed0Andrzej Mydlarczyk1Adel Al-Haddad2Water Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, 13109 Safat, KuwaitWater Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, 13109 Safat, Kuwait Water Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, 13109 Safat, Kuwait The wastewater characteristics and some operational control parameters limit the efficiency of attached growth processes for petrochemical wastewater treatment. This study aims to determine the efficiency of a hybrid biological reactor treating actual petrochemical wastewater and to identify the efficiency determining factors. An up-flow biological reactor filled with bio-career was operated at two flow rates, two dissolved oxygen (DO) levels, and under anaerobic conditions. Due to the varying characteristics of actual petrochemical wastewater, efficiency limitations were manifested in many ways. However, the highest chemical oxygen demand and biochemical oxygen demand (BOD) removal efficiencies were 77.2% and 78.5%, respectively, and were achieved under aerobic operation at organic loading rates (OLRs) of 0.2 kg-COD/m3/d and hydraulic retention time (HRT) of 26.67 h (DO 4.0 mg/l). Anaerobically, the highest efficiency was 41.7 for both at 0.18 kg-COD/m3/d and 400 ml/min. The total organic carbon (TOC) removal stability was attributed to the presence of toxic chemicals and removal mechanisms other than biodegradation, as it tapered off at high loading. The nutrient removal efficiency was marginal, conceivably due to the high organics to nutrient ratio and toxic conditions of the wastewater promoting nutrient removal inside the biofilm. https://jau.vgtu.lt/index.php/JEELM/article/view/17633biological treatmentindustrial wastewater treatmentintegrated film activated sludgehybrid biological reactorsmixed growth biological processespetrochemical wastewater |
| spellingShingle | Mohd Elmuntasir Ahmed Andrzej Mydlarczyk Adel Al-Haddad Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor Journal of Environmental Engineering and Landscape Management biological treatment industrial wastewater treatment integrated film activated sludge hybrid biological reactors mixed growth biological processes petrochemical wastewater |
| title | Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| title_full | Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| title_fullStr | Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| title_full_unstemmed | Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| title_short | Efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| title_sort | efficiency limiting factors of petrochemical wastewater treatment using hybrid biological reactor |
| topic | biological treatment industrial wastewater treatment integrated film activated sludge hybrid biological reactors mixed growth biological processes petrochemical wastewater |
| url | https://jau.vgtu.lt/index.php/JEELM/article/view/17633 |
| work_keys_str_mv | AT mohdelmuntasirahmed efficiencylimitingfactorsofpetrochemicalwastewatertreatmentusinghybridbiologicalreactor AT andrzejmydlarczyk efficiencylimitingfactorsofpetrochemicalwastewatertreatmentusinghybridbiologicalreactor AT adelalhaddad efficiencylimitingfactorsofpetrochemicalwastewatertreatmentusinghybridbiologicalreactor |