Academic Journal
Coupling of Anaerobic Digestion and Struvite Precipitation in the Same Reactor: Effect of Zeolite and Bischofite as Mg2+ Source
| العنوان: | Coupling of Anaerobic Digestion and Struvite Precipitation in the Same Reactor: Effect of Zeolite and Bischofite as Mg2+ Source |
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| المؤلفون: | Palominos, Nicolás, Castillo, A., Guerrero, Lorna, Borja Padilla, Rafael, Huiliñir, César |
| المساهمون: | Comisión Nacional de Investigación Científica y Tecnológica (Chile) |
| بيانات النشر: | Frontiers Media |
| سنة النشر: | 2021 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Anaerobic digestion, Struvite, Zeolite, Bischofite, Pig slurry |
| الوصف: | 10 Páginas.-- 2 Figuras.-- 5 Tablas ; The aim of this research was to assess the simultaneous effect of zeolite and bischofite on estruvite production in an anaerobic digester treating pig slurry as substrate. Three ratios (5:1, 6:1 and 7:1) of Mg-P were used for evaluating the effect of only bischofite on anaerobic digestion. For assessing the simultaneous effect of zeolite and bischofite on anaerobic digestion, three mass ratios of zeolite:bischofite (1, 5 and 10%) were used. As results, bischofite as Mg+2 source served to decrease the total phosphorous (TP) concentration in the anaerobic digestion of pig manure without affecting the maximum methane production rate or methane yield of the system. An average 82.5% TP removal was found in the reactors with bischofite during the first 5 days of digestion. Nevertheless, bischofite increased the lag-phase of the system. The simultaneous presence of zeolite and bischofite (1% ratio with respect to bischofite) caused a TP removal of 65.6% and increased the methane yield by up to 19.9% compared to a system without zeolite or bischofite. Thus, it is feasible to use bischofite and zeolite as enhancers for the simultaneous production of biogas and struvite inside an anaerobic digester treating piggery wastewater. ; The authors gratefully acknowledge the financial support provided by CONICYT, Chile through a FONDEF Project ID18I10053 and FONDECYT Project 1170103. Also to the University of Santiago de Chile through DICYT-USACH support. This work is dedicated to the memory of our esteemed and wonderful colleague Dr. Silvio Montalvo Martinez who led this research until his death in October 2019. ; Peer reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2296-665X |
| Relation: | Publisher's version; http://dx.doi.org/10.3389/fenvs.2021.706730; Sí; Frontiers in Environmental Science 9: 706730 (2021); http://hdl.handle.net/10261/259031; http://dx.doi.org/10.13039/501100002848 |
| DOI: | 10.13039/501100002848 |
| الاتاحة: | http://hdl.handle.net/10261/259031 https://doi.org/10.13039/501100002848 |
| Rights: | open |
| رقم الانضمام: | edsbas.7772BE7A |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 2296665X |
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| DOI: | 10.13039/501100002848 |