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Solution to Problems of Bacterial Impurity of Heating Systems

机译：解决供热系统细菌杂质的问题

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摘要

The article describes the problems of the operation of open and closed district heating systems related to the bacteriological contamination of heating-system water. It is noted that district heating systems are basically safe in sanitary epidemiological terms. Data on the dangers of sulfide contamination of heating systems are given. It is shown that the main causes of the development of sulfate-reducing and iron bacteria in heating systems are a significant biological contamination of source water to fuel heating systems, which is determined by water oxidizability, and a low velocity of the motion of heating-system water in the heating system elements. A case of sulfide contamination of a part of the outdoor heat-supply system of the city of Ulyanovsk is considered in detail. Measures for cleaning pipelines and heating system equipment from the waste products of sulfate-reducing bacteria and iron bacteria and for improving the quality of heating-system water by organizing the hydraulic and water-chemistry condition that makes it possible to avoid the bacteriological contamination of heating systems are proposed. The positive effect of sodium silicate on the prevention of sulfide contamination of heating systems is shown.
机译：本文介绍了与供热系统水的细菌污染有关的开放式和封闭式区域供热系统的运行问题。应当指出，就卫生流行病学而言，区域供热系统基本上是安全的。给出了加热系统中硫化物污染危险的数据。结果表明，在加热系统中产生硫酸盐还原和铁细菌的主要原因是燃料加热系统对水源的生物污染严重，这是由水的氧化性和加热运动的低速决定的。系统水是加热系统中的要素。详细考虑了乌里扬诺夫斯克市部分室外供热系统中硫化物污染的情况。通过组织水力和水化学条件来避免加热的细菌污染，从硫酸盐还原细菌和铁细菌的废品中清洗管道和加热系统设备的措施，以及改善加热系统水的质量的措施提出了系统。显示了硅酸钠对防止加热系统的硫化物污染的积极作用。

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