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Evaluation of the Performance and Impact of the Use of Microorganisms in Maintenance of Drainage Systems

机译：评估排水系统维护中使用微生物的性能和影响

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The concem with foul odours in building drainage systems has led specialized companies in biotechnology to invest in products composed of mixtures of living microorganisms that act on the pre-treatment of the wastewater inside traps to fighting against unpleasant odours.The aim of this paper is to assess the performance of using concentrated mixtures of microorganisms to accelerate the degradation of organic compounds in floor drains of building drainage systems and the impact on wastewater treatment plants.The methodology consists of diagnosing of unpleasant odours in restrooms of the Civil and Environmental Engineering building of the University of S(a)o Paulo, which is subject to constant complaints on the part of users.Thus, microorganism tablets were introduced in the wastewater of the floor drains of two restrooms and the performance and impacts of their use in restrooms and in sewage treatment plants was investigated.Biochemical Oxygen Demand (BOD) and oxygen uptake rate (OUR) tests were conducted in order to check changes in the sewage.The results show that the microorganisms tablet proved unable to improve these restrooms conditions.On the other hand, the laboratory tests indicate that the microorganisms tablet would also not be able to produce significant changes that could compromise the treatment system in wastewater treatment stations.
机译：建筑物排水系统中臭味浓郁的环境使生物技术专业公司投资于由活微生物混合物组成的产品，这些混合物可对疏水阀内的废水进行预处理，以防止恶臭。本文旨在评估使用微生物的浓缩混合物加速建筑排水系统的地面排水系统中有机化合物的降解以及对废水处理厂的影响的方法。该方法包括诊断该建筑的土木和环境工程大楼厕所的难闻气味。圣保罗大学（S（a）o Paulo）经常受到用户的抱怨，因此在两个洗手间的地漏排水中引入了微生物片剂，以及它们在洗手间和污水中的使用性能和影响研究了污水处理厂的生化需氧量（BOD）和吸氧率（OUR）t为了检查污水中的变化进行了实验。结果表明，微生物药片无法改善这些厕所条件。另一方面，实验室测试表明，微生物药片也无法产生明显的变化，可能会损害废水处理站的处理系统。

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