scholarly journals ORGANIC MATTER CONTENT IN TRIBUTARIES OF MOSKVA RIVER WATER SUPPLY SYSTEM RESERVOIRS: POSSIBILITY OF ESTIMATION IN THE ABSENCE OF MONITORING DATA

2017 ◽  
pp. 30-43
Author(s):  
D. I. Sokolov ◽  
O. N. Erina ◽  
M. A. Tereshina
Keyword(s):  
Organic Matter ◽  
Water Supply ◽  
River Water ◽  
Organic Matter Content ◽  
Matter Content ◽  
Supply System ◽  
Water Supply System ◽  
Monitoring Data ◽  
Moskva River

Removal of organic matter from surface water during coagulation with sludge flotation and rapid filtration – a full-scale technological investigation

2014 ◽  
Vol 71 (4) ◽  
pp. 645-652 ◽  
Author(s):  
Alina Pruss
Keyword(s):  
Organic Matter ◽  
Surface Water ◽  
River Water ◽  
Algal Bloom ◽  
Organic Matter Content ◽  
Matter Content ◽  
Full Scale ◽  
Treatment Technology ◽  
Surface Water Treatment ◽  
Sludge Flotation

Coagulation with sludge flotation and rapid filtration was selected as a surface water treatment technology to be optimised with a full-scale investigation, which was carried out in Poland between August and October 2013. The river water treated was characterized by low alkalinity, high-temperature variability and a high organic matter content. In the course of technological studies, the processes of coagulation with sludge flotation and rapid filtration were analysed. The studies were performed in the most adverse conditions for the applied technology i.e. during the period of algal bloom and subsequent decomposition of dead plankton. Throughout the study, the river water contained mainly dissolved organic matter, with occasional increases in the concentration of the undissolved fraction during algal bloom. The undissolved total organic carbon (TOC) fraction was effectively removed through coagulation while small doses of ClO2 added prior to coagulation enhanced the process. The process of coagulation using high-coagulant doses at pH = 6.5 did not provide a reduction in the TOC value below the level of 4 mg C/L required for treated water. The effect was achieved by adding powdered activated carbon (PAC) before the filters. The coagulation products were characterised by low-hydraulic resistance which should be taken into account at the stage of water delivery to the filters, after flotation.

scholarly journals Implementation of Decision Support System for Moscow River Water Supply System Management

2018 ◽  
Author(s):  
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Water ◽  
Supply System ◽  
Water Supply System ◽  
Water Inflow ◽  
Information Support ◽  
System Management ◽  
Water Reservoirs ◽  
Moscow River

Centre of registry and cadaster provides with the developed DSS information support for management of the Moscow River water supply system since 2009. Information support includes hydrological and water resources analysis, inflow predictions, evaluation of the current state of MRWSS and development of recommendations for water reservoirs management pattern for a next operation term. The developed recommendations are regularly presented at the sessions of interdepartmental working group of the Moscow-Oka river basin authorities. Analysis of current hydrological state is provided on the base of GIS-technologies. Water inflow is calculated by ECOMAG hydrological model describing the full hydrological cycle of the Moscow River watershed. The technique for prediction of water inflow to reservoirs, based on use of a set of weather scenarios, is presented. Water regimes for 5 water reservoirs and downstream branches of the Moscow, Ruza, Ozerna and Istra rivers for a next planning term, are developed with use of VOLPOW water resources system simulation model. Finally the ways of improvement of the discussed DSS for Moscow River water supply system management are proposed.

scholarly journals Human impact on organic matter distribution in the Moskva River

2020 ◽  
Vol 163 ◽  
pp. 05013
Author(s):  
Dmitriy Sokolov ◽  
Oxana Erina ◽  
Maria Tereshina ◽  
Sergey Chalov
Keyword(s):  
Organic Matter ◽  
Organic Matter Content ◽  
Matter Content ◽  
Organic Load ◽  
Volga River ◽  
Organic Matter Concentration ◽  
Moscow City ◽  
Treatment Facilities ◽  
The City ◽  
Moskva River

In 2019, we conducted an integrated study on the Moskva River and its tributaries during the low summer season with a focus on organic matter content (OM) assessment in river waters. The maximum OM content was measured at the river headwaters and related to natural sources. The Mozhaysk Reservoir regulation in the summer had the effect of increased organic load below the dam due to a rise in the allochthonous labile OM. Upstream from the Moscow City, the OM content was relatively low, despite wastewater inflow from several densely populated areas and polluted river inflow. Within the city, organic matter concentration increased by a factor of 1.5 due to an inflow from the Volga River via the Moskva-Volga Canal, whereas the release of treated sewage from the Moscow City wastewater treatment facilities did not have a significant effect. Below the city, the OM content increased again by a factor of 1.5 due to the inflow of urban and industrial wastewater and polluted tributaries. The observations in the lower reaches of the Moskva River indicate a high degree of anthropogenic euthrophication.

scholarly journals Forecasting and Regulating of the Natural Organic Matter in the Volga Water Supply Source of Moscow

2016 ◽  
pp. 48
Author(s):  
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Water Supply ◽  
Natural Organic Matter ◽  
Supply System ◽  
Water Supply System ◽  
Water Color ◽  
Supply Source ◽  
Ivankovo Reservoir ◽  
Treatment Facilities

The main regularities of water color and permanganate oxidizability transformation in the Volga water supply source of Moscow reservoir system have been found. Regularities of the natural organic matter content decrease in terms of water color and permanganate oxidizability within individual segments of the water supply system. The most intensive organic matter transformation within the system reservoirs occurs in the slow-flow Uchinsk reservoir where the color and permanganate oxidizability values maximum is observed during spring period. On the basis of the many-year observations results obtained in the water supply system water bodies a scheme of statistic forecasting of water color and oxidizability at water treatment facilities intake points with tree months lead time has been developed. The forecast is based on multiple linear regression equation linking the organic matter values in the Ivankovo reservoir tributaries and the same at the water treatment facilities at the closure link of the system (Uchinsk reservoir). The carried out comparison of the forecast results with the independent observation data shown a quite satisfactory agreement between the forecasted and observed organic matter values. A possibility to control the Volga River water color with low-color waters discharges from Vazuza reservoir was demonstrated with a simple balance model. As a result of the model calculations we obtained a nomogram enabling to compute the color decrease in a tribute to Ivankovo reservoir in dependence on the color difference between the Volga water and waters discharged from Vazuza reservoir provided we have pre-set proportion of water flow from these sources.

HEAVY METAL SPECIATION IN BOTTOM SEDIMENTS OF THE VYSHNEVOLOTSKY RESERVOIR

2018 ◽  
pp. 46-54
Author(s):  
O. A. Lipatnikova
Keyword(s):  
Heavy Metal ◽  
Organic Matter ◽  
Bottom Sediments ◽  
Metal Speciation ◽  
Organic Matter Content ◽  
Water Reservoir ◽  
Matter Content ◽  
Heavy Metal Speciation ◽  
Mobile Forms ◽  
Manganese Hydroxides

The study of heavy metal speciation in bottom sediments of the Vyshnevolotsky water reservoir is presented in this paper. Sequential selective procedure was used to determine the heavy metal speciation in bottom sediments and thermodynamic calculation — to determine ones in interstitial water. It has been shown that Mn are mainly presented in exchangeable and carbonate forms; for Fe, Zn, Pb и Co the forms are related to iron and manganese hydroxides is played an important role; and Cu and Ni are mainly associated with organic matter. In interstitial waters the main forms of heavy metal speciation are free ions for Zn, Ni, Co and Cd, carbonate complexes for Pb, fulvate complexes for Cu. Effects of particle size and organic matter content in sediments on distribution of mobile and potentially mobile forms of toxic elements have been revealed.

Physico-Chemical Properties of Soil Collected from Chandrabhaga River in Kalmeshwar, Nagpur, Maharashtra

2020 ◽  
Vol 07 (02) ◽  
pp. 1-3
Author(s):  
Amita M Watkar ◽  
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
Agricultural Land ◽  
Organic Matter Content ◽  
Chemical Properties ◽  
Matter Content ◽  
Soil Attributes ◽  
Essential Components ◽  
Agricultural Land Management ◽  
Physical And Chemical

Soil, itself means Soul of Infinite Life. Soil is the naturally occurring unconsolidated or loose covering on the earth’s surface. Physical properties depend upon the amount, size, shape, arrangement, and mineral composition of soil particles. It also depends on the organic matter content and pore spaces. Chemical properties depend on the Inorganic and organic matter present in the soil. Soils are the essential components of the environment and foundation resources for nearly all types of land use, besides being the most important component of sustainable agriculture. Therefore, assessment of soil quality and its direction of change with time is an ideal and primary indicator of sustainable agricultural land management. Soil quality indicators refer to measurable soil attributes that influence the capacity of a soil to function, within the limits imposed by the ecosystem, to preserve biological productivity and environmental quality and promote plant, animal and human health. The present study is to assess these soil attributes such as physical and chemical properties season-wise.

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