Scientific rationale of measures on prevention of pollution of surface water bodies in Kharkiv region

Today, in Kharkiv region, most of the surface water bodies as a result of man-made and anthropogenic loading have lost their natural purity and the ability to self-purify. One of the features of water resources of the region is that the rivers, which serve as the main sources of water supply, are also used as receivers of treated wastewater. In order to analyze the state of pollution of the aquifer of Kharkiv region during 2007–2016, laboratory studies of water of surface water reservoirs of the 1st and 2nd categories were conducted and summarized. The researchers have found that over the past 10 years the pollution of surface water bodies of the 1st category according to sanitary-chemical indicators is at the level of 4.5%, microbiological indicators – 14%, water pollution of reservoirs of the 2nd category is 20% and 12%, respectively. In order to prevent the occurrence of diseases of different etiology among the population of Kharkiv region, the source of which is the water factor, a set of methodical and practical measures that will contribute to the improvement of the surface water of the region has been developed

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Following the Water: Characterising de facto Wastewater Reuse in Agriculture in the Netherlands

Sustainability ◽

10.3390/su11215936 ◽

2019 ◽

Vol 11 (21) ◽

pp. 5936 ◽

Cited By ~ 3

Author(s):

Jack E. Beard ◽

Marc F.P. Bierkens ◽

Ruud P. Bartholomeus

Keyword(s):

Surface Water ◽

The Netherlands ◽

Wastewater Reuse ◽

Water Bodies ◽

Treated Wastewater ◽

Agricultural Irrigation ◽

Quality Model ◽

Dry Conditions ◽

De Facto Reuse ◽

Surface Water Bodies

De facto (or indirect) wastewater reuse is the practice of extracting from surface water bodies which are impacted by treated wastewater (TWW) for anthropogenic use. The extent to which surface water bodies in the Netherlands are impacted by TWW is poorly understood, and the distribution of de facto reuse even more so. This study addresses these knowledge gaps, with a focus on reuse for agricultural irrigation. This is achieved via a novel application of the Water Framework Directive (WFD) Explorer water quality model, allowing for the distribution of different flow components—namely TWW and flow from transboundary rivers—to be discerned for the national surface water network. When paired with data on surface water extractions for irrigation, this identifies notable areas of de facto reuse. Results show that during dry conditions, TWW is a significant flow component in many surface water bodies, particularly in smaller streams located close to WWTPs. De facto reuse is indicated as widespread, with several key areas identified in which extractions are from impacted surface water bodies. This study represents a first attempt to directly link TWW emissions to agricultural irrigation, highlighting a mechanism by which wastewater-associated contaminants can propagate through the hydrological system.

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Statistic Functions of the Surface Water Bodies’ Water Quality Hydrochemical Indicators Distribution

Water sector of Russia: problems, technologies, management - Методы оценки и механизмы регулирования водопользования в современных условиях ◽

10.35567/1999-4508-2012-4-2 ◽

2012 ◽

pp. 21-32

Author(s):

Keyword(s):

Water Quality ◽

Surface Water ◽

Dissolved Oxygen ◽

Normal Distribution ◽

Formation Mechanism ◽

Water Bodies ◽

Chemical Monitoring ◽

Chemical Indicators ◽

Hydrogen Carbonates ◽

Surface Water Bodies

Water quality chemical indicators functions’ distribution formation mechanism has been discussed. It has been demonstrated that the water quality indicators’distribution variability is characterized by considerable asymmetry and it cannot be approximated by normal distribution, excluding dissolved oxygen, hydrogen carbonates, and silicon. A pattern for water quality point indicators calculation construction on the basis of water bodies’ water quality regular hydro-chemical monitoring data has been proposed.

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Assessing the impact of climate change on water quality and quantity in the Elbe catchment using an open-data driven approach

10.5194/egusphere-egu2020-6670 ◽

2020 ◽

Author(s):

Alexander Wachholz ◽

Seifeddine Jomaa ◽

Olaf Büttner ◽

Robert Reinecke ◽

Michael Rode ◽

...

Keyword(s):

Climate Change ◽

Water Quality ◽

Surface Water ◽

Weather Conditions ◽

Extreme Weather ◽

Water Bodies ◽

Chemical Status ◽

The Past ◽

Surface Water Bodies ◽

The Impact

<p>Due to global climate change, the past decade has been the warmest for Germany since the beginning of climate records. Not only air temperature but also precipitation patterns are changing and therefore influencing the hydrologic cycle. This will certainly influence the chemical status of ground- and surface water bodies as mobilization, dilution and chemical reactions of contaminants are altered. However, it is uncertain if those alterations will impact water quality for better or worse and how they occur spatially. Since water management in Europe is handled at the regional scale, we suggest that an investigation is needed at the same scale to capture and quantify the different responses of the chemical status of water bodies to climate change and extreme weather conditions. In this study, we use open-access data to (1) quantify changes in temperature, precipitation, streamflow and groundwater levels for the past 40 - 60 years and (2) assess their impacts on nutrient concentrations in surface- and groundwater bodies. To disentangle management from climate effects we pay special attention to extreme weather conditions in the past decade. Referring to the Water Framework Directive, we chose the river basin district Elbe as our area of interest. Preliminary results indicate that especially the nitrate concentrations in surface water bodies of the Elbe catchment were positively affected in the last two years, while no significant impact on nitrate levels in shallow groundwater bodies was witnessed. However, many wells showed the first significant increase in water table depth in both years since 1985, raising the question of how fast groundwater-surface water interactions will change in the next years.</p>

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Automatic processing of Sentinel-2 image for Kerch peninsula lake areas extraction using QGIS and Python

E3S Web of Conferences ◽

10.1051/e3sconf/202020303011 ◽

2020 ◽

Vol 203 ◽

pp. 03011

Author(s):

Denis Krivoguz ◽

Sergei Mal’ko ◽

Raisa Borovskaya ◽

Anna Semenova

Keyword(s):

Time Series ◽

Surface Water ◽

Remote Monitoring ◽

Technological Development ◽

Climatic Changes ◽

Water Bodies ◽

The Past ◽

Kerch Peninsula ◽

Surface Water Bodies ◽

Sentinel 2

Climatic changes that have occurred over the past decades, with an acceleration of urbanization of territories and technological development, leads to the significant changes not only in the atmosphere, but also in the Earth’s surface. Surface water bodies are one of these components. Today there are 3 main methods of monitoring water bodies -field, remote and combined. In this paper, we show the possibility of automating remote monitoring of water bodies using QGIS, Python and Sentinel-2 data of the main and largest lakes of the Kerch Peninsula. Having analysed both the available satellite data and the features of the study area, we came to the conclusion that it is advisable to use the NDWI index instead of the mNDWI. After processing and analysing the Sentinel-2 data for 2018 using the data processing model presented in the work, we obtained time series of changes in the areas of the studied lakes of the Kerch Peninsula.

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Performance of retention soil filters for the reduction of hygienically-relevant microorganisms in combined sewage overflow and treated wastewater

Water Science & Technology ◽

10.2166/wst.2020.132 ◽

2020 ◽

Vol 81 (3) ◽

pp. 535-543 ◽

Cited By ~ 1

Author(s):

N. Zacharias ◽

S. M. Essert ◽

A. F. Brunsch ◽

E. Christoffels ◽

T. Kistemann ◽

...

Keyword(s):

Wastewater Treatment ◽

Surface Water ◽

Large Scale ◽

Municipal Wastewater ◽

Water Bodies ◽

Treated Wastewater ◽

Test Facility ◽

Resistant Bacteria ◽

Limit Values ◽

Surface Water Bodies

Abstract Environmental quality standards for surface waters have been significantly expanded through recent amendments to German regulations. Limit values are only established for applicable regulations if the water is indicated for certain uses, e.g. abstraction of irrigation water. Nevertheless, surface water bodies are often used for hygiene-sensitive purposes. In the course of climate change, stronger precipitation events will occur, which may lead to more frequent loading and discharge of combined sewer overflow (CSO) into surface water bodies. Retention soil filters (RSFs) are attracting attention as an extensive treatment technology for CSO and additional wastewater treatment. This study examined large-scale RSFs for CSO treatment, as well as the effectiveness of RSFs as a fourth purification stage. An RSF test facility was established at a municipal wastewater treatment plant (WWTP), consisting three semi-technical RSFs that were fed exclusively with treated water from the WWTP. The reduction of microorganisms mostly occurred within the first centimeters of the RSFs. For most hygienic-microbiological parameters, a 1–2 log unit reduction could be detected in addition to the reduction within the WWTP. Antibiotic-resistant bacteria were reduced to the same extent. Investigation of the large-scale RSFs showed that a flow rate reduced by half corresponded to better reduction performances.

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