دورية أكاديمية
Feeding frequency efficacy on biogas yield of oily substrate anaerobic digestion in continuous stir tank reactor
| العنوان: | Feeding frequency efficacy on biogas yield of oily substrate anaerobic digestion in continuous stir tank reactor |
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| المؤلفون: | Nazaitulshila Rasit, Wan Azlina Wan Ab Karim Ghani, Mohammad Hakim Che Harun, Sofiah Hamzah, Roslinda Seswoya, Md Nurul Islam Siddique |
| المصدر: | Water Science and Technology, Vol 89, Iss 10, Pp 2796-2811 (2024) |
| بيانات النشر: | IWA Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering |
| مصطلحات موضوعية: | anaerobic digestion, continuous stirred-tank reactor, feeding frequency, long-chain fatty acids, methane, oily substrate, Environmental technology. Sanitary engineering, TD1-1066 |
| الوصف: | Anaerobic treatment of oily substrate, known as grease trap waste (GTW), was investigated for its practicability via continuous stirred tank reactor (CSTR) at different operating conditions and selected recovery strategies of feeding frequency efficacy. This study determine the performance of feeding frequency efficacy, namely feeding every 24 hours (R24H) and feeding every 12 hours (R12H). Under organic loading rate (OLR) of 2.2 gCOD/L.day, R12H exhibited methane composition of 57%, methane production rate of 0.27 LCH4/L.day, and methane yield of 0.14 LCH4/gCODremoved. At the same OLR, R24H recorded methane composition of 60%, methane production rate of 0.29 LCH4/L.day and similar methane yield as R12H. Findings indicated that R24H showed performance comparable to that of R12H. Given minor variation observed in performance, it is recommended that plant operators may consider scheduling two feedings per day for low loading conditions and switch to one feeding per day for higher loading conditions. This strategy is designed to balance the system and prevent shock loads, which could lead to plant shutdowns. This mechanism will induce their conversion to volatile fatty acids (VFAs); thus, reducing the risk of acid accumulation and pH drops, which could inhibit methanogens to produce methane, especially for oily substrate. HIGHLIGHTS Strategy for lipid inhibition recovery.; Enhanced methane yield.; Mono-digestion efficiency strategy.; Long-chain fatty acids individual profile inhibition.; Start-up strategy to enhance lipid degradation.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0273-1223 1996-9732 |
| Relation: | http://wst.iwaponline.com/content/89/10/2796; https://doaj.org/toc/0273-1223; https://doaj.org/toc/1996-9732 |
| DOI: | 10.2166/wst.2024.153 |
| URL الوصول: | https://doaj.org/article/2307c53b63db42e6936aa83528444bdb |
| رقم الأكسشن: | edsdoj.2307c53b63db42e6936aa83528444bdb |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 02731223 19969732 |
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| DOI: | 10.2166/wst.2024.153 |