Enhancement of Microbial Function for a Sulfur Redox Cycle Action in a Sewage Treatment Process Combining an UASB and an Aerobic Filter Reactor

结合 UASB 和好氧过滤反应器增强污水处理过程中硫氧化还原循环作用的微生物功能

• 批准号: 18560538
• 负责人: ARAKI Nobuo
• 金额: $ 2.45万
• 依托单位: Nagaoka National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560538/
• 关键词: sewage treatment; sulfate-reducing bacteria; sulfur-oxidizing bacteria; microbial structure; COD removal; nitrogen removal; 16S rRNA; 下排水処理; 微生物群集解析; 嫌気性処理法; 低温処理; 下廃水処理; Real-time PCR

The objective of this research is to make a novel wastewater treatment process activated by a sulfur-redox cycle action of microbe in low temperature conditions. This action is carried out by sulfate-reducing bacteria (SRB) and sulfur-oxidizing bacteria (SOB). The reactor system was comprising of an UASB reactor as pre-treatment and an aerobic downflow hanging sponge (DHS) reactor as post-treatment. As the results of reactor operation, the whole process achieved that over 90% of CODcr removal efficiency, less than 35mg-CODcr/L (less than 20mg-BOD/L) of final effluent, at 12hr of HRT and at 8℃ of UASB reactor temperature. As the result of the effect of temperature methane-producing activity (MPA) and sulfate-reducing activity (SRA) of sludge retained in the UASB reactor, below the 25℃ condition, SRA was greater than MPA from acetate and H2/CO2 as test substrate. And that MPA was all but destitute at 15℃, SRA was certain despite at 5℃. The proposed sulfur-redox action process was considered as an applicable process for low strength wastewater treatment in low temperature conditions.The combined system was also applied for low temperature treatment of deicing fluid wastewater. The whole process achieved over 90% of CODcr removal efficiency with less than 30mg-CODcr/L in the final effluent, at an operating temperature of 8 -C and at an HRT of 12h. In UASB sludge, Acetobacterium sp. and Desulfobulbus sp. were found to be predominant species as the relative abundance to DAPI-stained total cells was 10% and 14%, respectively.

本研究的目的是在低温条件下利用微生物的硫氧化还原循环作用来激活一种新型的废水处理工艺。这一作用由硫酸盐还原细菌(SRB)和硫氧化细菌(SOB)执行。该反应器系统由UASB反应器作为前处理，好氧下行挂膜(DHS)反应器作为后处理。反应器运行结果表明，在水力停留时间为12小时、UASB反应器温度为8℃的条件下，整个工艺对COD_(Cr)的去除效率达90%以上，出水COD_(Cr)/L小于35 mg/L(小于20 mg/L)。在25℃的条件下，由于温度的影响，污泥的产甲烷活性和硫酸盐还原活性大于醋酸盐和H_2/CO_2作为试验底物的产甲烷活性和硫酸盐还原活性。在15℃时，MPa几乎是一贫如洗，尽管在5℃时，SRA仍然是确定的。硫磺氧化还原反应工艺是一种适用于低温条件下低浓度废水处理的工艺，该组合系统也适用于除冰液废水的低温处理。在运行温度为8℃、水力停留时间为12h的条件下，整个工艺的出水CODcr/L小于30 mg，CODcr的去除效率可达90%以上。在UASB污泥中，醋杆菌属(Acetbacterium sp.)和Desulfobulbus sp.DAPI染色细胞的相对丰度分别为10%和14%。

项目成果

Quantification of Nitrate Reduction-Sulfur Oxidizing Bacteria in Sewage Treatment System enhancing a Sulfur Redox Action.

污水处理系统中硝酸盐还原-硫氧化细菌的定量增强了硫氧化还原作用。

• 发表时间: 2008
• 作者: M.KAMIMURA;T.IKARASHI;N.ARAKI
• 通讯作者: N.ARAKI

新規下水処理装置内における硫黄脱窒素細菌の定量

新型污水处理设备中硫磺反硝化细菌的定量

• 发表时间: 2007
• 作者: 上村 基成;五十嵐 利弘;荒木 信夫;山口 慎一;山口 隆司
• 通讯作者: 山口 隆司

Development of low strength wastewater treatment under low temperature conditions by combining of UASB and DHS reactor system enhancing a sulfur-redox cycle action

通过结合 UASB 和 DHS 反应器系统，增强硫-氧化还原循环作用，开发低温条件下的低浓度废水处理

• 发表时间: 2006
• 期刊: Environmental Engineering Research Vol.43
• 作者: M. TAKAHASHI;T. YAMAGUCHI;N. ARAKI;et. al.
• 通讯作者: et. al.

Feasibility study of a pilot-scale sewage treatment system combining an up-flow anaerobic sludge blanket (UASB) and an aerated fixed bed (AFB) reactor at ambient temperature.

• DOI: 10.1016/j.biortech.2005.10.020
• 发表时间: 2007
• 期刊: Bioresource technology
• 影响因子: 11.4
• 作者: H. Sumino;Masanobu Takahashi;Takashi Yamaguchi;K. Abe;N. Araki;S. Yamazaki;S. Shimozaki;A. Nagano-A.

融雪剤廃水の低温処理UASB内における嫌気性酢酸分解細菌の特定

UASB低温处理融雪剂废水中厌氧乙酸降解菌的鉴定

• 发表时间: 2006
• 期刊: 環境工学研究論文集 43
• 作者: 今井崇博;荒木信夫;山口隆司;長野晃弘
• 通讯作者: 長野晃弘