Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis
A pilot-scale six-compartment hybrid anaerobic baffled reactor (HABR) with effective volume of 18 m<sup>3</sup> was used to treat dyeing wastewater. The HABR system was able to treat the wastewater efficiently after FeSO<sub>4</sub> pretreatment, as indicated by removal effic...
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MDPI AG
2019-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/9/10/1974 |
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| author | Zhixin Qi Guoli Xiang Deqi Xiong |
| author_facet | Zhixin Qi Guoli Xiang Deqi Xiong |
| author_sort | Zhixin Qi |
| collection | DOAJ |
| description | A pilot-scale six-compartment hybrid anaerobic baffled reactor (HABR) with effective volume of 18 m<sup>3</sup> was used to treat dyeing wastewater. The HABR system was able to treat the wastewater efficiently after FeSO<sub>4</sub> pretreatment, as indicated by removal efficiencies of 33.7% for chemical oxygen demand (COD), 39.9% for suspended solid (SS), and 22.5% for sulfate (SO<sub>4</sub><sup>2−</sup>) during steadily operational period. Gas chromatography–mass spectrometry (GC-MS) showed that the concentrations of alkanes, amides, organic acids, ketones, phenols, and esters were much lower in the effluent than those in the influent; many high-molecular-weight compounds such as cyclanes, quinolines, and phenols were successfully transformed to low-molecular-weight ones. As illustrated from the results of generalized grey relational analysis (GGRA), COD removal efficiency was more closely associated with flow rate, organic loading rate (OLR), water temperature, and influent SS among the whole selected possible factors. Based on the overall treating effectiveness and the GGRA study, the optimized operation strategy of the dyeing wastewater treatment by HABR was obtained as the hydraulic retention time (HRT) of 12 h for steady-state operation with an up-flow velocity of 1.7 m/h as well as OLR of 1.5–2.0 kg COD/(m<sup>3</sup>·d). |
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| language | English |
| last_indexed | 2024-12-14T00:59:38Z |
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| spelling | doaj.art-ba6630e25efb47d392cefbc68a94ed5a2022-12-21T23:23:20ZengMDPI AGApplied Sciences2076-34172019-05-01910197410.3390/app9101974app9101974Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational AnalysisZhixin Qi0Guoli Xiang1Deqi Xiong2College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116026, ChinaJiuquan Environmental Monitoring Station, Jiuquan 735000, ChinaCollege of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116026, ChinaA pilot-scale six-compartment hybrid anaerobic baffled reactor (HABR) with effective volume of 18 m<sup>3</sup> was used to treat dyeing wastewater. The HABR system was able to treat the wastewater efficiently after FeSO<sub>4</sub> pretreatment, as indicated by removal efficiencies of 33.7% for chemical oxygen demand (COD), 39.9% for suspended solid (SS), and 22.5% for sulfate (SO<sub>4</sub><sup>2−</sup>) during steadily operational period. Gas chromatography–mass spectrometry (GC-MS) showed that the concentrations of alkanes, amides, organic acids, ketones, phenols, and esters were much lower in the effluent than those in the influent; many high-molecular-weight compounds such as cyclanes, quinolines, and phenols were successfully transformed to low-molecular-weight ones. As illustrated from the results of generalized grey relational analysis (GGRA), COD removal efficiency was more closely associated with flow rate, organic loading rate (OLR), water temperature, and influent SS among the whole selected possible factors. Based on the overall treating effectiveness and the GGRA study, the optimized operation strategy of the dyeing wastewater treatment by HABR was obtained as the hydraulic retention time (HRT) of 12 h for steady-state operation with an up-flow velocity of 1.7 m/h as well as OLR of 1.5–2.0 kg COD/(m<sup>3</sup>·d).https://www.mdpi.com/2076-3417/9/10/1974dyeing wastewaterhybrid anaerobic baffled reactorgrey relational analysispilot-scaleremoval efficiency |
| spellingShingle | Zhixin Qi Guoli Xiang Deqi Xiong Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis Applied Sciences dyeing wastewater hybrid anaerobic baffled reactor grey relational analysis pilot-scale removal efficiency |
| title | Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis |
| title_full | Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis |
| title_fullStr | Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis |
| title_full_unstemmed | Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis |
| title_short | Performance Evaluation of Pilot-scale Hybrid Anaerobic Baffled Reactor (HABR) to Process Dyeing Wastewater Based on Grey Relational Analysis |
| title_sort | performance evaluation of pilot scale hybrid anaerobic baffled reactor habr to process dyeing wastewater based on grey relational analysis |
| topic | dyeing wastewater hybrid anaerobic baffled reactor grey relational analysis pilot-scale removal efficiency |
| url | https://www.mdpi.com/2076-3417/9/10/1974 |
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