Some Problems of Reducing the Pollution of Water Bodies from Diffuse Sources

Danilov-Danilyan, V. I.; Venitsianov, E. V.; Belyaev, S. D.

doi:10.1134/s0097807820050048

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…Currently, one of the main problems of ecology is the problem of pollution of river basins with various pollutants [1,2]. Failure to take measures to prevent pollution of water bodies can significantly affect the state of the coastal ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of distribution of pollutant in channel

Gimaltdinov,

Stolpovskij,

Kochanova

et al. 2024

E3S Web Conf.

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The paper presents the problem of the propagation of a pollutant (phenol) emission in a channel through which pure water flows. The mathematical model of the presented problem is based on the continuity equations. The distributions of the main parameters of the system are constructed. It is shown that in the absence of ledges, the pollutant flow moves in the channel in the form of a jet with a clearly defined core. In this case, the presence of ledges, due to the turbulence of the flow, leads to the emergence of rather large areas of pollution along the height of the channel. The dynamics of changes in the concentration of a pollutant along the height of the channel has been studied. It is shown that in the case of a working pollution source, the highest concentration is observed near the free surface of the channel. In the case when the source is not working, the highest concentration is observed at the bottom.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of distribution of pollutant in channel

Gimaltdinov,

Stolpovskij,

Kochanova

et al. 2024

E3S Web Conf.

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“…It is a preventive measure in which the faulty area is identi ed and isolated by closing the pipe value. The measures include sensing of contaminant, warning of public, and inspection of complete network to recover the faults [2]. However certain residues of contaminants may exist, hence the source causing contaminants need to be entirely detected and treated.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic and Water quality Analysis for Puzhal Water Treatment Plant, Tamil Nadu, India

Krishnan¹,

Bhuvaneswari

Kumar³

2023

Preprint

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Access to clean water is becoming a more challenging problem for people due to urbanization. The contaminations caused through dumping of industrial waste in the existing Water Distribution System (WDS), impose challenges on water quality. Further, the degradation of the hydraulics involved in the WDS also adds to the contamination. Addressing above issues becomes essential, as it may leads to severe health hazard. Continuous monitoring of hydraulics and water quality can be the promising solution to alleviate these issues. In this research, to enable continuous monitoring, the WDS is modeled using EPANET 2.0 software. The case study considered in this research is Puzhal water treatment plant of Chennai. The hydraulic factors modeled are head, pressure, and demand while Chlorine (Cl) level is modeled for water quality. From the proposed work, it is inferred that the Cl level of the Puzhal WTP is maintained within the permissible limit and identified the quantity of water demand for this entire WDS.

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“…Особенно ярко это проявляется в животноводстве и птицеводстве, где происходит концентрация поголовья на крупных фермах и комплексах. Это позволяет сократить издержки на обслуживание животных, но создает существенные экологические риски [1][2][3]. Интенсификация аграрного производства связана с целым рядом экологических проблем.…”

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“…Интенсификация аграрного производства связана с целым рядом экологических проблем. Одна из них -низкая степень использования вторич-ных ресурсов (органических удобрений на основе навоза и помета) [2][3][4][5][6][7][8].…”

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Analysis and Solutions to Environmental Problems in Livestock Farming

et al. 2021

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The intensifi cation of agricultural production has led to the disruption of nutrient cycles in agroecosystems. In livestock farming, one of the key problems is the low degree of using secondary resources (organic fertilizers based on manure and manure). (Research purpose) To substantiate the basic principles of assessing the agroecosystem environmental sustainability and to develop engineering methods for ensuring environmental safety in livestock farming. (Materials and methods) To solve the problems of agroecological assessment, eff ective technology choice and intelligent system creation, the following indicators were used: 1. specifi c density of animals (mainly for macro-assessment); 2. nutrient balance (the diff erence in the amount of nitrogen available in the formed organic fertilizers with environmentally safe consumption); 3. nitrogen losses during the disposal of organic waste from livestock farming; 4.the eff ectiveness of implementing the best available techniques (BAT). (Results and discussion) Using the assessment of indicators 1 and 2 in the case of the Leningrad region, it was revealed that 3 districts are classifi ed as territories with an excessive risk to the environment, 1 district is classifi ed as a territory with a high risk, 5 districts – with an acceptable risk, and 8 districts – with a low risk to the environment. To solve problems in areas with excessive and high load, we conducted an assessment on indicators 3 and 4, which allowed us to explore technical solutions and select the BAT to reduce the environmental burden. The obtained results showed that among the main technical solutions in the fi eld of organic waste management of livestock farming are biofermentation and the introduction of liquid organic fertilizers. Biofermentation in special chambers can reduce emissions of polluting gases by more than 2 times, and speed up the processing process by more than 60 times. To work with liquid organic fertilizers, intelligent machines with low-emission working bodies have been developed to reduce nitrogen losses during application by up to 50 percent. To solve the problems of agricultural monitoring and engineering solution management, a digital system has been developed that allows to model scenarios of technological development and their impact on the agroecosystem environmental sustainability. (Conclusions) The results obtained allow us to systematically analyze the problems of agroecosystem environmental sustainability and propose specifi c technical and optimization solutions for livestock farming.

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Some Problems of Reducing the Pollution of Water Bodies from Diffuse Sources

Cited by 8 publications

References 1 publication

Numerical simulation of distribution of pollutant in channel

Numerical simulation of distribution of pollutant in channel

Hydraulic and Water quality Analysis for Puzhal Water Treatment Plant, Tamil Nadu, India

Analysis and Solutions to Environmental Problems in Livestock Farming

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