| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-09-27 |
| タイトル |
|
|
タイトル |
メタン発酵－紅色光合成細菌共存系による模擬養鶏屠殺場廃水処理性能の評価 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Treatment of synthetic poultry slaughterhouse wastewater using a consortium of anaerobic digestion microorganisms and purple phototrophic bacteria |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Integrated process |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
photosynthetic bacteria |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
biogas recovery |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
carbon removal |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
bacteriochlorophyll a |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
秋月, 真一
Shin-ichi, Akizuki
藤原, 正明
Masaaki, Fujiwara
Hirahara, Minamo
Toda, Tatsuki
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
As global population increases and living standards improve in developing countries, the demand for meat is increasing, resulting in the rise of highly concentrated organic waste water generated from poultry processing. An effective method for treating this wastewater is through anaerobic digestion, which converts it into biogas as an energy source using anaerobic microorganisms. However, while this process effectively removes organic carbon, nutrients suchas nitrogen and phosphorus remain in high concentrations in the effluent, necessitating second ary treatment facilities such as separate nitrification and denitrification tanks. Purple phototro phic bacteria are microorganisms that can uptake organic matter and nutrient-rich pollutants in wastewater, accumulating protein and carbohydrate in their cells. Since both anaerobic digestion and purple phototrophic bacterial processes occur under anaerobic conditions and have similar suitable environments such as pH and temperature, they can potentially be integrated into a single reactor. This study proposes a new process using a consortium of anaerobic digestion microorganisms and purple phototrophic bacteria for simultaneous treatment of organic carbon and nutrients from poultry slaughterhouse wastewater. The performance of the proposed simul taneous process was compared with that of the only-anaerobic digestion process and only-purple phototrophic bacterial process in a 19-day batch e periment at 33 ± 2oC under anaerobic conditions. Synthetic poultry slaughterhouse wastewater was used as the substrate, and anaerobic digestion sludge collected from a mesophilic anaerobic digestion plant and Rhodopseudomonas capsulata were used as the inoculums.In the simultaneous process, biogas production and organic carbon (chemical o ygen demand) removal progressed first with and without infrared light irradiation, followed by an increase in bacteriochlorophyll a concentration, an indicator of the biomass of purple phototrophic bacte ria. These results indicate that the anaerobic digestion process and purple phototrophic bacterial process functioned in a single reactor, although there was a time gap between the two processes. Despite uniform substrate input, the simultaneous process produced higher biogas (276-337 mL) than the only-anaerobic digestion process (138 mL), possibly due to degradation of some purple phototrophic bacteria biomass as feedstock for anaerobic digestion. In the simultaneous process, organic carbon removal efficiencies ranged from 40 to 81%, similar to or lower than the removal efficiency of the only-anaerobic digestion process (81%). In purple phototrophic bacteria added conditions, nitrogen removal was not confirmed, indicating low nutrient removal capability. The treatment performance of the simultaneous process can be enhanced by improving light permea bility using flat-panel reactors or granular anaerobic sludge and acclimation of purple phototro phic bacteria with highly concentrated organic wastewater before using it as an inoculum. |
|
言語 |
en |
| 書誌情報 |
プランクトン工学研究
号 3,
p. 29-38,
発行日 2023-06-26
|
| 出版者 |
|
|
出版者 |
創価大学プランクトン工学研究所 |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
24364878 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
pulanktonkogakukenkyu0_3_03.pdf (971 KB)
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