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，构建一种新型的废水处理工艺。这种作用是由硫酸盐还原菌（SRB）和硫氧化菌（SRB）进行的。该反应器系统包括作为预处理的UASB反应器和作为后处理的好氧下流式悬挂海绵（DHS）反应器。反应器运行结果表明，在HRT为12 h、反应器温度为8℃的条件下，整个工艺对CODcr的去除率达到90%以上，最终出水小于35 mg-CODcr/L（小于20 mg-BOD/L）。由于温度对UASB反应器中污泥产甲烷活性（MPA）和硫酸盐还原活性（SRA）的影响，在25℃以下，以乙酸盐和H2/CO2为试验底物时，SRA大于MPA。MPA在15℃时几乎不存在，SRA在5℃时仍存在。硫-氧化还原反应工艺是一种适用于低温条件下处理低浓度废水的工艺，该组合工艺也可用于低温除冰液废水的处理。在运行温度为8 ℃、水力停留时间为12 h的条件下，整个工艺对CODcr的去除率可达90%以上，出水小于30 mg-CODcr/L。在UASB污泥中，醋酸杆菌属和脱硫菌属是优势种，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