Comprehensive assessment of combined sewer overflows in Slovakia

Sztruhar, Daniel; Sokáč, Marek; Holienčin, Adrián; Markovič, Andrej

doi:10.1016/s1462-0758(02)00008-0

Cited by 18 publications

(5 citation statements)

References 5 publications

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“…The use of egg-shaped or special shaped pipe design can effectively reduce pipe blockage. Studies of other countries have shown that when the design of the combined flow system pipeline is egg-shaped, there is almost no sediment [15][16].…”

Section: Sewage Interception Pipe Cloggingmentioning

confidence: 99%

Study on Combined Sewer Overflow (CSO) Pollution and Its Control Method Based on Sewage Interception Along Rivers

Zhang

Lin

et al. 2023

E3S Web of Conf.

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Combined sewer overflow (CSO) pollution is the main factor that plagues the water environment in the area with combined sewer system in most cities of China. This paper analyzed CSO pollution, and reviewed the measures to solve CSO pollution and the latest research progress. The problems of traditional river interception projects were analyzed, and optimization and improvement ideas were proposed. Finally, a combined optimization scheme of source reduction-process control-end storage was proposed to control CSO pollution, which could provide reference for urban CSO pollution control in China.

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Section: Sewage Interception Pipe Cloggingmentioning

confidence: 99%

Study on Combined Sewer Overflow (CSO) Pollution and Its Control Method Based on Sewage Interception Along Rivers

Zhang

Lin

et al. 2023

E3S Web of Conf.

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“…Also, there were no direct measurements of pollution concentrations of the CSO effluent available, so we used data obtained during the survey in Slovakia (Sztruhár et al 2002). These values are presented in Table 1.…”

Section: Modelling Workmentioning

confidence: 99%

Modelling of Combined Sewer Overflow Impacts on the Receiving Water Quality: Case Studies Hron and Drava

Sokáč

Jerković

2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. Paper analyses the influences of combined sewer overflows (CSO's), on the receiving water quality, but generally deals also with various types of storm water management in urban areas. The first case study analyses the impacts of the continuous (wastewater treatment plant in the town Osijek) and discontinuous pollution sources (CSO's in the town Osijek) on the quality of the receiving water -the Drava river (Croatia). The second modelling case study was performed on the river Hron (Slovak republic). In this study, the impacts on the water quality from combined sewer overflows form the biggest town on Hron River -Banská Bystrica were studied, as well as four feasible alternatives of storm sewer management (different mixing ratio, different size of storm tanks) were analysed. For both case studies, the mathematical simulation model MIKE11 (Danish Hydraulic Institute, DHI) was used.

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“…Finally, as a last initial condition, the outlet of the Osijek sewage system was defined at 14 + 580 rkm, with a discharge of 0.144 m 3 /s, and the water quality parameters are shown in Table 2. Due to the lack of accurate information about the flow and water quality, the data used in the water quality modeling was provided empirically, based on the number of inhabitants and their average pollution load [9,10].…”

Section: Initial and Boundary Conditionsmentioning

confidence: 99%

“…The main challenges in airborne study of the Mostar site are the low-altitude required for airborne operations and data acquisition over a heavily urbanized area. Operating in a congested area, with overhead infrastructure (e.g., power-lines) in a relatively narrow mountainous valley, requires careful mission planning and safety considerations to minimize any potential risk on the ground [9].…”

Section: Figure 3 Time Series Window Showing the Longitudinal Profilementioning

confidence: 99%

Analysis of the Effects of a Wastewater Treatment Plant Failure on the Drava River Water Quality

Jerković

Sokáč

Tadić

2016

e-GFOS

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1D model of the Drava River, between 00 + 543 rkm and 69 +118 rkm, was created by the MIKE 11 river-modeling tool. The aim of this model was to analyze the river water quality (WQ). Compared to the real Drava River section, the model was simplified to exclude any tributaries for the purpose of the water quality analysis. The inflow boundary was specified upstream, in addition to the WQ parameters (dissolved oxygen (DO), temperature, ammonia nitrogen, nitrate nitrogen, total phosphorus and orthophosphate, and five-day biochemical oxygen demand (BOD5)). The water level and open boundary conditions were specified at the downstream end of section. The WQ parameters, mentioned earlier, were also defined at the Belišće wastewater treatment plant (WWTP) (54 + 373 rkm) and at the wastewater outlet near Osijek (14 + 580 rkm). The model was then used to simulate the effect on the WQ of the Drava River in a hypothetical extreme scenario: the 2-day failure of the Belišće WWTP. It was assumed that during this time untreated wastewater would be discharged into the river. After running the simulation, the resulting concentrations of DO, BOD5, and ammonia nitrogen were analyzed. The results showed that, according to the concentration values of the untreated wastewater, the concentrations of BOD5 and ammonia nitrogen rapidly increased and the DO concentrations rapidly decreased with the initiation of the WWTP failure. Immediately after the WWTP was repaired, the parameters returned to their pre-failure values. The resulting analysis of the effects of this scenario highlighted the self-purification ability of the Drava River.

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Comprehensive assessment of combined sewer overflows in Slovakia

Cited by 18 publications

References 5 publications

Study on Combined Sewer Overflow (CSO) Pollution and Its Control Method Based on Sewage Interception Along Rivers

Study on Combined Sewer Overflow (CSO) Pollution and Its Control Method Based on Sewage Interception Along Rivers

Modelling of Combined Sewer Overflow Impacts on the Receiving Water Quality: Case Studies Hron and Drava

Analysis of the Effects of a Wastewater Treatment Plant Failure on the Drava River Water Quality

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