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首页> 外文会议>Water Environment Federation 75th annual technical exhibition amp; conference (WEFTEC 2002) >An Overview of the Lincoln, NE Nitrifying Activated Sludge System,Control of Filamentous Bulking with an Anoxic Selector and Enhancing System Performance with an Automatic Solids Retention Time Control System
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An Overview of the Lincoln, NE Nitrifying Activated Sludge System,Control of Filamentous Bulking with an Anoxic Selector and Enhancing System Performance with an Automatic Solids Retention Time Control System

机译：Lincoln，NE硝化活性污泥系统概述，通过缺氧选择器控制丝状膨化，并通过自动固留时间控制系统提高系统性能

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The City of Lincoln, Nebraska Theresa Street Wastewater Treatment Facility (WWTF) hasrnrecently made several modifications to the activated sludge system to control filamentousrnbulking and to achieve nitrification and denitrification in compliance with anticipated dischargernpermit requirements. Lincoln Wastewater Engineers developed an automated system to controlrnsolids retention time (SRT) in an effort to optimize the capacity and streamline operation. Thernsystem Sludge Volume Index (SVI) has improved from an average of 309 ml/g to 179 ml/g sincernthe automated control system was implemented. During test periods the activated sludge systemrnconsistently nitrified to achieve ammonia levels of less than 3 mg/L. The automated SRTrncontrol scheme appears to be an effective way to optimize system capacity.
机译：内布拉斯加州的林肯市Theresa街废水处理设施（WWTF）最近对活性污泥系统进行了几处修改，以控制细丝堆积并实现硝化和反硝化，以符合预期的排放许可要求。林肯废水工程师开发了一套自动化系统来控制固体保留时间（SRT），以优化产能和简化操作。自从实施了自动控制系统以来，系统污泥体积指数（SVI）已从平均309 ml / g提高到179 ml / g。在测试期间，活性污泥系统不断进行硝化，以使氨含量低于3 mg / L。自动化的SRTrncontrol方案似乎是优化系统容量的有效方法。

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