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Ultraviolet Disinfection Pilot Study at the Fargo Wastewater Treatment Plant.

機譯：在Fargo廢水處理廠進行的紫外線消毒試驗研究。

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摘要

A pilot study was carried out at the Fargo wastewater treatment plant to determine the impacts that flow rate, water quality, and system fouling may have on the efficiency of UV disinfection. A second-order model successfully explained the results obtained with the collimated beam. The second-order model was used to study the impact of water quality and initial microorganism concentration on E. coli inactivation rates. Fouling material was mostly made of precipitated metal salts and its impact on UV intensity reduction was explained with the application of the Beer-Lambert law. E. coli inactivation in the pilot unit was found to be dependent on UVT, flow rate, and UV intensity. A first-order plug-flow model successfully explained the inactivation data obtained in the pilot unit. No significant seasonal water quality changes that may affect system operation were identified. However, UVT changes caused by storm events had short-term adverse impacts on system performance.
機譯：在Fargo廢水處理廠進行了一項初步研究，以確定流速，水質和系統(tǒng)結垢可能對紫外線消毒的效率產生影響。二階模型成功地解釋了用準直光束獲得的結果。二階模型用于研究水質和初始微生物濃度對大腸桿菌滅活率的影響。污垢材料主要由沉淀的金屬鹽制成，并通過應用比爾-朗伯定律來解釋其對降低紫外線強度的影響。發(fā)現試驗單元中的大腸桿菌失活取決于UVT，流速和UV強度。一階推流模型成功地解釋了在先導單元中獲得的失活數據。沒有發(fā)現可能影響系統(tǒng)運行的重大季節(jié)性水質變化。但是，由風暴事件引起的UVT變化會對系統(tǒng)性能產生短期不利影響。

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  • 作者

    Puga Gil, Ursinio.;

  • 作者單位

    North Dakota State University.;

  • 授予單位 North Dakota State University.;
  • 學科 Civil engineering.
  • 學位 M.S.
  • 年度 2017
  • 頁碼 215 p.
  • 總頁數 215
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類
  • 關鍵詞

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