Hydraulic analysis of functioning of the drainage channel with increased retention capacity

Abstract

Abstract. Hydraulic overload of networks and its related objects is a problem that is more and more common in drainage systems. The most popular way to prevent it from its occurring is to increase the storage capacity of the system. At present, there are numerous solutions allowing to increase retention in drainage systems, with the selection of the most beneficial one being dependent on numerous factors; it must also be preceded by a technical and financial analysis. Financial analysis is of particular importance here, since due to significant dimensions and complicated structure, these objects require high investment outlays for its construction. As a consequence, it is a priority to undertake actions aimed at developing such solutions that will allow for significant increases of retention in the drainage system, and cost reductions at the same time. One of such solutions is the Underground tank for combined sewage and stormwater that is now patent-pending. The application of this solution allows to multiply retention capacity of the drainage system, without the necessity of modernizing the existing sewer system. This paper presents the application potential of the subject method for increasing sewer retention, along with its hydraulic function analysis. The research carried out and presented was based on the analysis of individual phases of functioning of the subject solution.

Application of an ultrasonic field for the removal of selected pesticides

“…In most cases, the goal of current technical applications of advanced oxidation processes is the destruction of pollutants in water, rather than the energy-intensive complete degradation of the content in the substrate. The most important economic parameter is thus the efficiency of substrate consumption [21][22][23][24][25][26][27].…”

An innovative retention canal – a case study

“…Equally important are the factors associated with the selection of rain models, which are suitable for calculating the design parameters of this type of objects. It should be noted that there is a substantial difference in the precipitation of rains accepted for dimensioning sewer pipes of standard drainage networks from networks equipped with retention canals [20][21].…”

A critical evaluation of the methods for the determination of required volumes for detention tank

“…The service volume of a detention tank is determined from a balance of detention tank waste water inflow and outflow during the filling of the detention tank [15,16]. The service volume is a function of a surface area determined between the lines of the hydrographs which depict the waste water inflow and outflow rates to and from the detention tank during a critical rainfall [17,18].…”