Prediction of Reservoir Sediment Quality Based on Erosion Processes in Watershed Using Mathematical Modelling

Junáková, Natália; Bálintová, Magdaléna; Vodička, Roman; Junak, Jozef

doi:10.3390/environments5010006

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…The proposed model was validated in the small agricultural watershed of the Tisovec River, Slovakia. The results indicate the applicability of the new model in predicting the quality of the reservoir's sediment detached through erosion processes in the watershed [6].…”

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confidence: 73%

Advances in Environmental Engineering

Estokova

Bálintová

2018

Environments

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Environmental quality is crucial to our health, our economy, and our lives. However, it faces several serious challenges, not least those of climate change, unsustainable consumption, and production, as well as various forms of pollution. This Special Issue collects research papers aimed at a wide range of environmental topics: water and wastewater treatment and management, soil degradation and conservation, sediment pollution control, the environmental impact of technologies, life cycle analysis (LCA), air quality and indoor environment, and advanced environmental materials. Contributions describe novel and significant knowledge, scientific results, and advanced applications in the field of environmental engineering. This Special Issue provides an integrated view of the trends in solving the problems associated with the achievement of sustainability in environmental engineering. This issue contains twelve papers that have been selected as emerging studies dealing with the above-mentioned topics. The contributions, aimed at wastewater treatment, present a wide range of methods applied to various pollution removal methods. Investigating contaminants of emerging concern such as pharmaceuticals and personal care products reveals that the fate of these compounds in the aquatic environment has been a topic of wide interest and active research. Lecours et al. [1] applied different electrochemical approaches to the study of the oxidation products of the anti-infective trimethoprim, a contaminant of emerging concern frequently reported in wastewaters and surface waters. The authors found that electrochemical techniques are relevant not only to mimicking specific biotransformation reactions of organic contaminants but also to studying the oxidation reactions of organic contaminants of interest in water treatment. Tian et al. [2] investigated the effects of physico-chemical post-treatments of sewage sludge using ultrasonic, ultrasonic-ozone, and ultrasonic+alkaline methods. The results showed that the post-treatments were able to increase biogas production and decrease the amount of volatile solids in the final effluent. In the work by Pipiska et al. [3], the biosorption methods for pollution removal from wastewater were studied. Dried biomass of freshwater moss V. dubyana has been used as biosorbent for cationic dyes methylene blue and thioflavin T removal from both single and binary systems. Influence of a contact time, pH, and sorbate concentration on the dyes' removal efficiency has been investigated. The authors reported that an increase in pH has a positive effect on both thioflavin T and methylene blue sorption, and dye removal by moss V. dubyana is likely based on the electrostatic attraction. Another paper [4], dealing with wastewater treatment, studied and quantified the elimination of sunflower oil from wastewater influent using a biological treatment involving activated sludge. The findings revealed that the efficiency of the elimination of sunflower oil using a combination of biodegradation and flotation was 9...

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confidence: 73%

Advances in Environmental Engineering

Estokova

Bálintová

2018

Environments

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“…Because increased concentrations of nutrients (nitrogen and phosphorus) cause water eutrophication, one of the most studied mobilization processes at the sediment-water interface is the study of phosphorus sorption by bottom sediments [5,6]. In the sediment matrix, phosphorus is mostly found in adsorbed (particulate) form [7]. Storage of phosphorus within the sediments potentially reduces eutrophication by reducing its bioavailability [8].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Sediments in Water Structures

Junáková

Junak

2020

Selected Scientific Papers - Journal of Civil Engineering

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Bottom sediments are a natural part of aquatic ecosystems. They are increasingly contributing to the deterioration of watercourses and reservoirs and are an undesirable material that causes various serious environmental and technical problems. The most significant problems include the instability of riverbeds, the transport of chemicals, nutrients and organic compounds, the supply of sediments to water reservoirs. Bottom sediments have the ability to bind to their surface various predominantly harmful substances such as heavy metals, radionuclides, nutrients and organic substances. Such sediments pose a risk to the water system in terms of possible remobilization of pollutants into the water.This paper is focused on the study of behavior of sediments in the Hervartov small water reservoir located in the east of Slovakia and their ability to adsorb phosphorus at the sediment-water interface. The results show that the efficiency of sorption of phosphorus from the aqueous environment by fine and coarse-grained sediments is the highest at the lowest input concentrations of phosphorus in solution, or at low concentrations in surface water above the sediment. At these concentrations, the amount of sorbed phosphorus by fine-grained sediments was up to almost 99%. The coarse-grained sediments sorbed phosphorus at a level of up to 84%. Increasing the concentration of phosphorus in the solution leads to a decrease in the sorption efficiency of the sediment, while at high concentrations of the sorbate, the sorption process is significantly stabilized due to reaching the maximum sorption capacity of bottom sediments.

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“…Water source area conservation is key to ensuring water security. However, the ecological security of global water source areas is at risk caused by of agricultural non-point source pollution (ANSP) [1][2][3][4]. The use of large amounts of fertilizer and pesticides and the random disposal of agricultural film, straw, livestock manure, and other contaminants all lead to N, P, and other pollutants entering the water through runoff and leakage, resulting in ANSP [5].…”

Section: Introductionmentioning

confidence: 99%

Rural Households’ Willingness to Accept Compensation Standards for Controlling Agricultural Non-Point Source Pollution: A Case Study of the Qinba Water Source Area in Northwest China

Liu

Yan

et al. 2019

Water

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Agricultural non-point source pollution (ANSP) has become one of the main sources of pollution in water source areas. An effective solution to this problem is the use of ecological compensation to encourage rural households to adopt agricultural pollution control measures. This study aims to answer two questions: How much compensation should be given to encourage rural households in water source areas to participate in ANSP control? What factors will influence their participation? In this study, paddy rice planting in water source area has been used as an example aiming to answer these questions. This study used the random parameter logit (RPL) model with survey data from 632 rural households in the Qinba water source area to empirically analyze rural households’ willingness to accept compensation for ANSP control and the influencing factors of this willingness. From this information, the compensation standards for ANSP control in a water source area were calculated. The results show that (1) compensation had a significant incentive effect on rural households’ willingness to control ANSP. The marginal compensation standard for reducing the use of fertilizer and pesticide was $3.40/ha and $2.00/ha, respectively. The compensation standard for not applying chemical fertilizer and pesticide at all was $540.23/ha. (2) There was heterogeneity in rural households’ preference for ANSP control compensation policies. Rural households characterized by younger residents, higher family income, higher perception of the ecological benefits, and higher perception of government policy were more willing to participate in the compensation policy. It is suggested that rural households showed a strong preference for ANSP control policies by considering both of their economic losses and ecological benefits. Our study contributes to the literature by enriching the evaluation method in providing references for the compensation of ANSP control policies

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Prediction of Reservoir Sediment Quality Based on Erosion Processes in Watershed Using Mathematical Modelling

Cited by 4 publications

References 28 publications

Advances in Environmental Engineering

Advances in Environmental Engineering

Behaviour of Sediments in Water Structures

Rural Households’ Willingness to Accept Compensation Standards for Controlling Agricultural Non-Point Source Pollution: A Case Study of the Qinba Water Source Area in Northwest China

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