The effect of mono- and multiple fermentation parameters on volatile fatty acids (VFAs) production from chicken manure via anaerobic digestion
| العنوان: | The effect of mono- and multiple fermentation parameters on volatile fatty acids (VFAs) production from chicken manure via anaerobic digestion |
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| المؤلفون: | Yin, Dong-min, Mahboubi, Amir, Wainaina, Steven, Qiao, W., Taherzadeh, Mohammad J, 1965 |
| المصدر: | Bioresource Technology. 330 |
| مصطلحات موضوعية: | Anaerobic digestion, Chicken manure, Heat shocking, pH, Volatile fatty acids, Alkalinity, Fermentation, Fertilizers, Manures, Methane, pH effects, Acid yields, Anaerobics, Fatty acid productions, High nitrogen content, Inocula, Inoculum-to-substrate ratios, Intermediate product, Methane production, Animals, biogas, volatile fatty acid, bioassay, detection method, inhibitor, inoculation, manure, microbial activity, microbial community, agricultural inoculation, Article, biotransformation, controlled study, granular sludge, heat shock, methanogen, nonhuman, organic waste, poultry manure, priority journal, anaerobic growth, animal, bioreactor, chicken, Gallus gallus, Anaerobiosis, Bioreactors, Chickens, Fatty Acids, Volatile, Resource Recovery, Resursåtervinning |
| الوصف: | Although the high nitrogen content of chicken manure (CM) poses major challenges for methane production through anaerobic digestion, on the bright side, it has a great potential for production of value-added intermediate products, such as volatile fatty acids (VFAs). However, in order to enhance VFAs yield, methane formation should be substantially suppressed. In the current research, individual and multiple effects of initial pH, heat-shock pretreatment, chemical methanogens inhibitor and the inoculum to substrate ratio (ISR) on optimization VFAs fermentation from CM were evaluated via batch assays. In this regard, the highest net VFAs yield, 0.53 g-VFA/g-VS, was achieved at conditions with heat-shocked inoculum and CM at ISR 1:6 and pH uncontrolled. Acetate dominated the VFAs mixture, accounting for up to 75% of total. Increased inoculum content enhanced the bioconversion efficiency to 78% at ISR 1:3. The study results suggest that alkalinity is a key promoter of VFAs production from CM. |
| وصف الملف: | |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-25811 https://doi.org/10.1016/j.biortech.2021.124992 |
| قاعدة البيانات: | SwePub |
| تدمد: | 09608524 18732976 |
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| DOI: | 10.1016/j.biortech.2021.124992 |