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Using Experience And Six Sigma To Optimize Water Treatment

机译：使用经验和六西格玛优化水处理

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Coagulation and flocculation are basic process steps to providing the quality of water required at many industrial and commercial sites. Water clarification and lime softening depend on the correct application of these processes. Surface water clarification is the first water treatment step for many sites. The process involves taking turbid river or raw water that contains both set-tleable solids and dispersed solids and producing clean water for direct use and/or downstream processes. The dispersed solids tend to be colloidal and require treatment to assist the settling process. While the clarification process is well understood, the application of chemistry in many instances does not achieve the desired results. Statistical analysis and the use of the Six Sigma Process was used at one site with significant success. This paper details the process used to obtain the improved results and provides a path to make the chemistry component of the water treatment process function more effectively. First, an entire process is covered - improving the clarification process using Six Sigma Analysis. The paper does not focus on all the technical aspects of clarification and/or water treatment process since these areas are both well documented and can be unique for specific sites. It is however a good roadmap toward improving current operations and providing a focus that is often ignored. It is hoped that individual sites can use this study to prove their data and develop a plan to improve and control their processes. The process worked so well that is was used on other parts of the water treatment program to improve results. This is the second part of the paper - using Six Sigma tools to improve water treatment. Specifically the Measurement System Analysis (MSA) was used to determine if the measurement of key parameters was sufficiently accurate and precise to predict outcomes for the process. We base decisions on data that in many cases is not accurate or precise.
机译：凝血和絮凝是提供在许多工业和商业地点所需的水质的基本过程步骤。水澄清和石灰软化取决于这些过程的正确应用。表面水澄清是许多地点的第一个水处理步骤。该方法涉及使含有可动固体和分散的固体和分散的固体的浑浊河或原水，并产生清洁水以直接使用和/或下游工艺。分散的固体倾向于是胶体，需要治疗以帮助沉降过程。虽然澄清过程得到了很好的理解，但在许多情况下，化学的应用不会达到所需的结果。统计分析和使用六种Sigma工艺的使用在一个有重大成功的一个地点使用。本文详细说明了用于获得改进的结果的过程，并提供了一种更有效地使水处理过程功能的化学成分的路径。首先，涵盖了整个过程 - 使用六西格玛分析改善澄清过程。本文不关注澄清和/或水处理过程的所有技术方面，因为这些领域都记载了很好的记录，对于特定地点来说也是独特的。然而，它是一种良好的路线图，旨在改善当前的运营并提供经常被忽视的焦点。希望各个站点可以使用本研究来证明他们的数据并制定计划来改进和控制流程。该过程效果如此良好，用于水处理计划的其他部分以改善结果。这是纸张的第二部分 - 使用六种Sigma工具来改善水处理。具体地，测量系统分析（MSA）用于确定关键参数的测量是否足够准确，精确地预测该过程的结果。我们基于数据的决策，在许多情况下不准确或精确。

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