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Biological Treatments of Drinking Water

机译：饮用水的生物处理

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Given that a key objective of treating drinking water is the inactivation or removal of microorganisms from raw water, using bacteria to help produce potable water would seem to fly in the face of conventional wisdom. However, biological drinking water treatment processes, which use indigenous, nonpathogenic bacteria, are always followed by downstream processes, such as final disinfection. Consequently, well-designed biological treatment systems pose no significant, inherent threats to the health or safety of distributed water. On the contrary, they can often provide an alternative to conventional processes that has several potential advantages:rn1.low operating costsrn2.high water-recovery ratesrn3.destruction, rather than sequestration or concentration, of contaminantsrn4.simultaneous removal of multiple contaminantsrn5.minimal sludge productionrn6.no hazardous waste streamsrn7.minimal or no added chemicalsrn8.robustness over a wide range of operating conditions and water qualitiesrnOverall, biological drinking water treatment is highly efficient and environmentally sustainable. As green water treatment philosophies gain traction and as regulatory and residuals-handling constraints continue to tighten, the use of biological drinking water treatment technologies and processes will likely continue to expand around the globe.
机译：鉴于处理饮用水的一个关键目标是灭活或去除原水中的微生物，因此面对细菌，使用细菌来帮助生产饮用水似乎是飞来飞去的。但是，使用本地非病原性细菌的生物饮用水处理过程始终伴随着下游过程，例如最终消毒。因此，设计完善的生物处理系统不会对分布式水的健康或安全构成重大的固有威胁。相反，它们通常可以提供具有以下潜在优势的常规方法的替代方法：rn1。低运行成本rn2。高水回收率rn3。销毁而不是隔离或浓缩污染物rn4。同时清除多种污染物rn5。最小污泥生产rn6。没有危险废物流rn7。最小或不添加化学药品rn8。在各种运行条件和水质范围内的坚固性总体而言，生物饮用水处理是高效和环境可持续的。随着绿色水处理理念的普及，以及监管和残留物处理的限制不断收紧，生物饮用水处理技术和流程的使用可能会继续在全球范围内扩展。

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