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A novel anaerobic digestion system coupling biogas recirculation with MgCl2 addition for multipurpose sewage sludge treatment
http://hdl.handle.net/2241/00159218
http://hdl.handle.net/2241/00159218c7e3b2f9-801c-4e04-a03e-e852ed7bccce
名前 / ファイル | ライセンス | アクション |
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JCP_230-499 (568.4 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2019-12-19 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A novel anaerobic digestion system coupling biogas recirculation with MgCl2 addition for multipurpose sewage sludge treatment | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
張, 振亜
× 張, 振亜× 雷, 中方× 清水, 和哉× 内海, 真生× 足立, 泰久× Yuan, Tian× Cheng, Yanfei× Wang, Xuezhi× Yu, Yang× Lee, Dun-Jong |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Sewage sludge, one of the major byproducts from wastewater treatment plants (WWTPs), contains high contents of nutritional elements that can be recycled and reutilized to make up the overuse of limited resources on Earth. Currently, the reutilization ratio of sewage sludge is relatively low, most probably due to the high operation costs for its treatment and disposal in WWTPs. This study for the first time realized biogas upgrading, resources conservation and sludge conditioning simultaneously in one anaerobic digestion (AD) reactor for sewage sludge treatment through coupling biogas recirculation with MgCl2 addition. Results showed that 86% of methane content could be obtained by the intermittent biogas recirculation during AD. When MgCl2 was further added, soluble orthophosphate and ammonia nitrogen were reduced by 87% and 19% during 17 days’ AD. At the same time, around 120 mg/g-total solids (TS) of struvite was estimated to generate in the digested sludge, and the sludge dewaterability was enhanced by 37% when biogas recirculation was performed along with MgCl2 addition. At last, not only the enhanced electricity generation from biogas with higher methane content but also the increased fertilizer potential of the digestate were analyzed in the context of a local WWTP, reflecting the great potentials and profits of this novel AD system in industrial-scale sewage sludge treatment. | |||||
書誌情報 |
en : Journal of Cleaner Production 巻 230, p. 499-507, 発行日 2019-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09596526 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10911156 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jclepro.2019.05.124 | |||||
権利 | ||||||
権利情報 | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Elsevier |