CONSTRACTION OF A WATER REUSE SYSTEM COMBINED WITH AN ADVANCED WASTE WATER TREATMENT PROCESS

结合先进废水处理工艺建设中水回用系统

• 批准号: 14595001
• 负责人: SHIMIZU Tatsuo
• 金额: $ 2.3万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14595001/
• 关键词: Water reuse system; Advanced wastewater treatment process; Fluidized bed bioreactor; Chlorination; Algae resistant to chlorine; Chlorolobion braunii; Nonvlphenol ethoxylate; Nonylphenolcarboxylate; 窒素・リン除去; 高度処理システム; 嫌気性流動バイオリアクター; 非イオン界面活性剤

The objective of this study was to propose an urban water reuse system combined with a new advanced wastewater treatment process. The following subjects of research were accomplished.1.Development and scale up of an advanced wastewater treatment process, The authors proposed the upgrading wastewater system consisted of an anaerobic fluidized pellet bed bioreactor and a contact aerobic bioreactor. We succeeded scaling up of this system to pilot plant scale of about 40m^3.2.Reuse of chlorinated sewage wastewater effluent treated by the upgrading treatment system as small river water ; the supply of the chlorinated sewage effluent to a small river facilitated the growth of algae resistant to chlorine, Chlorolobion braunii and built up the ecosystem using this algae as primary food source.3.Behavior of micro pollutant, nonylphenolethoxylate (NPnEO ; n-number of ethoxy group) in the sewage works and natural water system ; Most of NPnEO and its decomposed substances were removed from sewage wastewater in the primary settling tank. NP n EO were oxidized to hydrophilic nonylphenplcarboxylate (NPnEC ; n=1〜4) in the aeration tank and discharge in the natural water system. Below 0.2 ppb of nonylphenol and a small amount of NPnEC (several ppb) were detected in the natural water.

本研究的目的是提出一种结合新型高级废水处理工艺的城市中水回用系统。完成了以下研究课题：污水深度处理工艺的开发与规模化，提出了由厌氧流化床生物反应器和接触好氧生物反应器组成的污水升级系统。我们成功地将该系统扩大到约40m^3.2的中试工厂规模。升级处理系统处理后的氯化污水废水出水作为小河水回用；2 .将经氯化处理的污水排放到一条小河流中，促进了抗氯藻类（Chlorolobion braunii）的生长，并建立了以该藻类为主要食物来源的生态系统。微污染物壬基酚醛氧基酸盐（NPnEO； n-氧基数目）在污水和自然水系中的行为NPnEO及其分解物在一次沉淀池中从污水中去除大部分。NP和EO在曝气池中氧化成亲水性壬基苯羧酸盐（NPnEC, n=1 ~ 4），排放到自然水系中。在自然水体中检测到壬基酚低于0.2 ppb，少量NPnEC（数ppb）。

项目成果

渡辺 隆司: "三次元励起・蛍光スペクトル法を用いた水質評価"第12回 環境科学討論会講演要旨集. 12巻. 322-323 (2003)

Takashi Watanabe：“利用三维激发/荧光光谱进行水质评估”第 12 届环境科学研讨会摘要（2003 年）。

紀國 聡: "水の磁気処理効果に関する基礎的研究"第11回 衛生工学シンポジウム論文集. 11巻. 123-126 (2003)

菊尼聪：“水磁处理效果的基础研究”第11届卫生工程研讨会论文集第11卷123-126（2003年）。

清水 達雄: "下水の高度処理と水循環再利用"ベース設計資料(土木編). 120号. (2004)

清水达男：《高级污水处理与水循环回用》基础设计资料（土木版）第120号。（2004年）。

Higashi, R. et al.: "Behavior of nonylphenol compounds in the sewage treatment process and natural water system"12tn Symposium on Environmental Chemistry Programs and abstracts. vol.12. 112-113 (2003)

Higashi, R. 等人：“污水处理过程和天然水系统中壬基酚化合物的行为”12tn 环境化学研讨会计划和摘要。

渡辺 隆司: "三次元励起・蛍光スペクトル法を用いた水質評価"第12回 環境化学討論会. (印刷中). (2003)

Takashi Watanabe：“利用三维激发和荧光光谱评估水质”第 12 届环境化学研讨会（2003 年）。