Seasonal Release Potential of Sediments in Reservoirs and its Impact on Water Quality Assessment

Hu, Suduan; Wang, Tianxiang; Xu, Shiguo; Ma, Lingxiao; Sun, And Xinguo

doi:10.3390/ijerph16183303

Cited by 18 publications

(12 citation statements)

References 45 publications

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“…This is in line with the research by Wiatkowski and Czerniawska-Kusza (2009) 73 and Gruss et al (2021) 43 , who indicated that the water analyzed in the Turawa reservoir in spring and summer, as a result of rising temperatures and increased pH, was characterized by the release of phosphorus from deeper sediment layers to the surface water. This tendency was also confirmed by the research of Hu et al (2019) 74 on the Biliuhe reservoir in China and Moura et al (2020) 75 on three water bodies in Brazil.…”

Section: Discussionsupporting

confidence: 66%

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Buta

Wiatkowski

Gruss

et al. 2023

Sci Rep

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The objectives of the article are: to assess spatio-temporal evolution of eutrophication and water quality of the Turawa dam reservoir, located in south-western Poland on the Mała Panew River; to identify location and relationship between potential sources of physicochemical pollution related to the progressing process of eutrophication; and to determine trophic status and water quality indices of the selected research object. The analysis (Mann–Whitney U test, PCA, HCA, Spearman correlation matrix) showed a high susceptibility of the reservoir to eutrophication processes, especially due to the influence of dangerous loads of compounds emerging from areas with high tourist intensity and pollutants flowing from the Mała Panew River. The parameters deteriorating the ecological status were TP, DO, BOD5, and COD. Considering the cumulative results of water quality indices for the period 1998–2020, the average water quality was in classes II or III. A noticeable deterioration appeared in water quality for the years 2016–2020, which proves the progressing eutrophication in the Turawa reservoir. In 1998–2020, the reservoir was classified as eutrophic or mesoeutrophic based on the calculated three trophic status indices. This article would help in developing a strategy for dealing with water blooms, a reliable system for monitoring pressures causing eutrophication, and optimal technologies for the reconstruction of multifunctional reservoirs.

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Section: Discussionsupporting

confidence: 66%

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Buta

Wiatkowski

Gruss

et al. 2023

Sci Rep

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“…It is generally believed that hydrolysis enzymes break down nitrogen-containing organic compounds into low molecular weight components, such as amino acids, peptides, and nucleic acids, in the process of ammoniation taking place in the water-sediment interface [22,23]. These low molecular weight substances are quickly degraded by bacteria in the water and sediments, together with the release of organic acids and ammonia.…”

Section: Effect Of Thermal Stratification On Dissolved Oxygen and Amm...mentioning

confidence: 99%

Effects of Seasonal Thermal Stratification on Ammonia Nitrogen Transformation in a Source Water Reservoir

2021

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Seasonal thermal stratification has a significant impact on water quality. In this paper, the variation of vertical distribution of ammonia nitrogen in a source water reservoir was studied, on the base of field monitoring data. The dominant factor of the variation in ammonia nitrogen is the anaerobic environment caused by the seasonal thermal stratification, which leads to the degradation of nitrogen-containing organic compounds in the sediments. To determine the rates of ammonia accumulation, an in situ experimental chamber was used. The results showed that, before the formation of thermal stratification in the reservoir, sediments in the bottom of the water have a high tendency to release ammonia; the rates of ammonia accumulation in the overlying water are 40.31–111.41 mg·m−2·d−1. However, thermal stratification causes changes in the physical and chemical properties of the sediment and reduction in the degradability of the nitrogen-containing compound in the sediment. The rates of ammonia accumulation (39.44–44.65 mg·m−2·d−1) after thermal stratification are lower than before. Considering the water pollution hazards caused by seasonal thermal stratification, it is necessary to take corresponding emergency response measures to cope with the possibility of water pollution risk.

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“…In adverse thermal and oxygen conditions the presence of sediments contributed to secondary contamination of the stored rainwater -e.g. an increase in turbidity due to resuspension or release of phosphorus in biochemical processes (Hu et al 2019). Analyses of certain chemical and biochemical properties of sediments carried out in 2007 showed significant concentrations of organic carbon (on average 4,540.00 mg•kg -1 ) and NH 4 + (on average 83.05 mg•kg -1 ) in the settler (Zubala et al 2007).…”

Section: Tablementioning

confidence: 99%

The Working Conditions and Optimisation of a Large Rainwater Harvesting and Treatment System in an Area at a Risk of Erosion

Zubala

2021

Water Resour Manage

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Rainwater harvesting and treatment systems (RHTS) are used in many places around the world as a part of sustainable water management. They decrease the risk of overloading the sewage network and environmental pollution. The efficiency and reasonableness of using such solutions in specific erosive conditions are not sufficiently understood. The aim of the study was to evaluate the operation of RHTS, receiving effluents from the wholesale market and fuel station (twenty years of observations). The studied system is located in an area endangered by water erosion. In the study period, due to the accumulation of erosive phenomena, it was necessary to optimise the system (including the installation of new devices and increasing the capacity of reservoirs). The analyses referred to the stability and work safety of the most important equipment and water treatment efficiency. The quality of water in the reservoirs was measured before and after the modernisation of the system. Selected physical, oxygen, biogenic and salinity indicators were determined in the water. During the study, RHTS had a positive effect on the quality of rainwater runoff – the values of many contaminants were reduced (RHTS 1: suspended solids, nitrogen, iron, potassium; RHTS 2: conductivity, suspended solids, nitrogen). Design and operational errors were noticed that in the long run may contribute to deteriorating the operational efficiency and even lead to a building collapse (intense erosive phenomena). This study clearly demonstrates that building a rainwater management system is a highly site-specific issue.

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Seasonal Release Potential of Sediments in Reservoirs and its Impact on Water Quality Assessment

Cited by 18 publications

References 45 publications

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Effects of Seasonal Thermal Stratification on Ammonia Nitrogen Transformation in a Source Water Reservoir

The Working Conditions and Optimisation of a Large Rainwater Harvesting and Treatment System in an Area at a Risk of Erosion

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