<abstract xmlns="http://www.w3.org/1999/xhtml">

The intricate hydrological processes elucidating the interplay between rainfall and flow manifest through rainwater's traversal along diverse routes, encompassing surface runoff and subsurface flow. While the foundational association between these entities is discernible, the convoluted intricacies characterizing this correlation defy straightforward comprehension. Examining the data between 2019 and 2022, the average daily sewage outflow was 12,518 m3/d, with occasional peaks of up to 50,440 m3/d. The wastewater treatment plant's capacity of 35,000 m3/d was usually not exceeded. Overall, average daily sewage outflows varied between 11,716 m3/d and 13,969 m3/d during the studied period. Comprehending this interrelationship holds pivotal significance for the optimization of water-resource-management strategies. A moderate correlation (r = 0.42) between daily rainfall levels and sewage discharge was found in the dataset covering 2018–2023. When categorizing daily rainfall into groups labelled “A” through “G” and comparing them to sewage flows, a pattern emerged: Rain-free days in group “A” had the lowest average sewage flow (10,996 m3/d), while heavy rain days in group “G”, had the highest average flow (22,112 m3/d). This observation underscores a significant correlation between intensified rainfall and increased volume of sewage discharge. Through a comprehensive analysis of factors such as sewage composition, meteorological dynamics and chronological sequences, we will gain an enhanced ability to prognosticate and govern sewage systems. The significance of this is heightened within the context of evolving climatic dynamics.
</abstract>

The intricate hydrological processes elucidating the interplay between rainfall and flow manifest through rainwater's traversal along diverse routes, encompassing surface runoff and subsurface flow. While the foundational association between these entities is discernible, the convoluted intricacies characterizing this correlation defy straightforward comprehension. Examining the data between 2019 and 2022, the average daily sewage outflow was 12,518 m3/d, with occasional peaks of up to 50,440 m3/d. The wastewater treatment plant's capacity of 35,000 m3/d was usually not exceeded. Overall, average daily sewage outflows varied between 11,716 m3/d and 13,969 m3/d during the studied period. Comprehending this interrelationship holds pivotal significance for the optimization of water-resource-management strategies. A moderate correlation (r = 0.42) between daily rainfall levels and sewage discharge was found in the dataset covering 2018–2023. When categorizing daily rainfall into groups labelled “A” through “G” and comparing them to sewage flows, a pattern emerged: Rain-free days in group “A” had the lowest average sewage flow (10,996 m3/d), while heavy rain days in group “G”, had the highest average flow (22,112 m3/d). This observation underscores a significant correlation between intensified rainfall and increased volume of sewage discharge. Through a comprehensive analysis of factors such as sewage composition, meteorological dynamics and chronological sequences, we will gain an enhanced ability to prognosticate and govern sewage systems. The significance of this is heightened within the context of evolving climatic dynamics.

Linking elevated rainfall with sewage discharge volume

Department of Water Supply, Sewerage and Environmental Monitoring, Faculty of Environmental and Power Engineering

Department of Natural Gas Engineering, Faculty of Drilling, Oil and Gas

Environmental Protection and Natural Resources

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Linking elevated rainfall with sewage discharge volume"}

The intricate hydrological processes elucidating the interplay between rainfall and flow manifest through rainwater's traversal along diverse routes,...

Parameter		Year
Parameter		2019	2020	2021	2022
Min	[m³/d]	2,520	3,820	7,630	5,760
Max		43,150	32,970	50,440	31,590
Avg		13,969	11,716	12,250	12,438
S		4,783	4,626	4,520	3,572
CV	[−]	0.34	0.39	0.37	0.29

Parameter		Month
Parameter		I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII
Min	[m³/d]	3,750	2,520	3,550	6,470	6,870	7,010	4,240	5,870	6,050	7,050	6,600	3,540
Max		35,260	32,970	18,430	31,090	43,150	30,320	28,370	50,440	35,430	31,350	26,670	31,590
Avg		13,546	14,856	11,631	11,890	14,635	12,525	12,543	12,185	12,603	12,184	10,658	11,505
S		4,591	4,232	2,332	3,725	5,768	4,263	4,343	5,403	4,925	4,047	2,916	4,318
CV	[−]	0.34	0.28	0.20	0.31	0.39	0.34	0.35	0.44	0.39	0.33	0.27	0.38

Linking elevated rainfall with sewage discharge volume

Data publikacji: 31 gru 2023

Zakres stron: 135 - 146

DOI: https://doi.org/10.2478/oszn-2023-0020

Słowa kluczowe
rainfall categorization, meteorological dynamics, sewage discharge, sewage optimization, WWTP

© 2023 Wiktor Halecki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Descriptive statistics for daily sewage outflows in particular years during the period 2019–2022

Descriptive statistics for daily sewage outflows in particular months of the period 2018–2023

Linking elevated rainfall with sewage discharge volume

Data publikacji: 31 gru 2023

Zakres stron: 135 - 146

DOI: https://doi.org/10.2478/oszn-2023-0020

Słowa kluczowerainfall categorization, meteorological dynamics, sewage discharge, sewage optimization, WWTP

© 2023 Wiktor Halecki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Descriptive statistics for daily sewage outflows in particular years during the period 2019–2022

Descriptive statistics for daily sewage outflows in particular months of the period 2018–2023

Słowa kluczowe
rainfall categorization, meteorological dynamics, sewage discharge, sewage optimization, WWTP