MODELING THE OPERATION OF SEPARATION CHAMBERS

Q3 Environmental Science

Water and Ecology Pub Date : 2021-06-29 DOI:10.23968/2305-3488.2021.26.2.14-21

A. Telyatnikova, S. V. Fedorov, A. V. Kudryavtsev

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Abstract

Introduction. Separation chambers are designed and built for separate and partially separate sewerage systems. Their main function is to separate the flow of relatively clean water during heavy rain. This allows the discharge of such water without treatment into water bodies or storage tanks. The approach reduces the load of wastewater treatment plants. To design separation chambers, we need to understand how their design features affect the process of flow separation. It is possible to study the hydraulic characteristics of separation chambers of any design with the help of computer simulation. Two designs of separation chambers were investigated: a circular spillway with a full-scale prototype and a spiral spillway proposed by the authors. Methods. The research was based on simulation in the ANSYS CFX finite element analysis software. For each design, a series of five experiments with different incoming flow rates was performed. Results. Models of two types of separation chambers were developed and qualitatively evaluated. The hydraulic characteristics were established and quantified: the uniformity of the flow discharged for treatment and the spillway discharge coefficient. Conclusion. As a result, a principled approach was formed and tested. Using this approach, it is possible to study the hydraulic characteristics of separation chambers of various designs for their further use in the sewerage system.

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分离室操作建模

介绍分离室是为独立和部分独立的污水系统设计和建造的。它们的主要功能是在大雨期间分离相对干净的水流。这允许在不经处理的情况下将这种水排放到水体或储罐中。该方法降低了废水处理厂的负荷。为了设计分离室，我们需要了解它们的设计特征如何影响流动分离过程。借助计算机模拟可以研究任何设计的分离室的水力特性。研究了两种分离室的设计：一种是具有全尺寸原型的圆形溢洪道，另一种是作者提出的螺旋溢洪道。方法。本研究基于ANSYS CFX有限元分析软件中的仿真。对于每种设计，都进行了一系列五个具有不同流入流速的实验。后果开发了两种类型的分离室模型，并对其进行了定性评估。建立并量化了水力特性：处理流量的均匀性和溢洪道流量系数。结论因此，形成并检验了一种原则性做法。使用这种方法，可以研究各种设计的分离室的水力特性，以便在污水系统中进一步使用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Water and Ecology Environmental Science-Ecology

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期刊介绍： The scientific and technical journal for experts in the sphere of water supply, water disposal, waste-water treatment and ecology. Published since 1999. Regular columns include communal and industrial water supply; water preparation; treatment of domestic and industrial waste; equipment; materials; use; maintenance. The journal’s main goal is to provide a wide range of professionals with the information about the latest innovative developments and tendencies. The journal deals with issues on water supply, water disposal, waste-water treatment and ecology.