文章基本信息

标题：MODELING AND DESIGN OF INNOVATIVE SMALL DIAMETER GRAVITY SEWERAGE SYSTEM
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作者：Tadeusz Nawrot ; Ryszard Błażejewski ; Radosław Matz 等
期刊名称：Inżynieria Ekologiczna
印刷版ISSN：2081-139X
电子版ISSN：2392-0629
出版年度：2017
卷号：18
期号：3
页码：162-173
DOI：10.12911/22998993/70181
出版社：Polish Society of Ecological Engineering (PTIE)
摘要：The article presents modern methods of hydraulic design of an innovative small diameter gravity sewerage system.In this system, domestic wastewater is preliminary treated in septic tanks equipped with outlet filters, thus the effluent features are similar to those of clear water.Innovative non-return valves at the outlets eliminate introduction of air to the system and thus the flows can be treated as one-phase ones.Computer codes EPANET 2 and SWMM 5.0 were applied and compared.Two flow schemes typical for the sewerage system were implemented in EPANET 2, and the third - in a slightly modified SWMM 5.0.Simulation results were validated on empirical data obtained on a laboratory physical model, consisting of four tanks of minimum volumes 600 dm3 each, connecting PE pipelines of diameters 25 mm and 36 mm and relevant sanitary fittings.Water inflows, typical for domestic wastewater outflows from single homesteads, were provided by a pump.Water flows were measured using water meters with pulse outputs, and water levels in tanks by pressure transducers.Hydraulic characteristics of filters and non-return valves were provided.Simulation results showed good agreement with the empirical data.Ranges of values of design parameters, needed for successful application of both codes, were established and discussed.
关键词：small diameter gravity sewerage ; mathematical model ; hydraulic calculations ; EPANET ; SWMM