System-Analytical Modeling of Water Quality for Mountain River Runoff

2021 ◽  
pp. 79-100
Author(s):  
Yuri Kirsta ◽  
Alexander Puzanov
Keyword(s):  
Water Quality ◽  
River Runoff ◽  
Analytical Modeling ◽  
Mountain River

scholarly journals Evaluation of the kinetics of oxidation and removal of organic matter in the self-purification of a mountain river

DYNA ◽  
2015 ◽  
Vol 82 (191) ◽  
pp. 183-193 ◽  
Author(s):  
Jorge Virgilio Rivera Gutiérrez
Keyword(s):  
Water Quality ◽  
Water System ◽  
The Self ◽  
Organic Load ◽  
Mountain River ◽  
Kinetics Of Oxidation ◽  
Kinetic Rates ◽  
High Concentrations ◽  
Kinetics Of

The study is based on the determination of the kinetic rates and assessment of self-purification of the Frio River, due to the uptake of organic load. The kinetic rates were calculated by applying differential and logarithmic methods on concentrations of water quality determinants present in each of the (7) reach of the river. The water system easily recovers the amount of oxygen, k<sub>d</sub>= 0.4, k<sub>a</sub> 3.2 d<sup>-1</sup>, only receives 27.7 Ton. d<sup>-1</sup>, the organic load, making high concentrations of carbon, ammonium and remain sediment. The length Influence of discharges, LIV- BOD yielded a mean per tranche of 10 km, compared to 3 km each way, means that the river can´t self- purification that need more length of travel. The study illustrates the modeling of the determinants of quality, developed by the QUAL2K, using the calculated rates.

scholarly journals Study Concerning the Quality Indices of Flowing Waters. A Case Study: Iara River

2013 ◽  
Vol 70 (2) ◽  
pp. 453-454
Author(s):  
Antonia ODAGIU ◽  
Ioan OROIAN ◽  
Ilie COVRIG ◽  
Tania MIHÄ‚IESCU
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Veterinary Medicine ◽  
Public Interest ◽  
Time Interval ◽  
Mountain River ◽  
Quality Indices ◽  
The University ◽  
Flowing Waters

The water pollution is first of all a consequence of the lack of prevention and also inertia of public interest initiatives, often being claimed technical and economical difficulties. The aim of this paper is to present the results of monitoring the water quality from a mountain river. The analysis was carried on within the Laboratory of the Monitoring of Environmental Quality from the Faculty of Agriculture of the University of Agricultural Sciences and Veterinary Medicine Cluj - Napoca, during April - June 2013. Temperature recorded values between 16 -210C pH,  6.5 - 6.9, conductivity 70.2 µS/cm - 72,8 µS/cm, turbidity 0.05 - 0,16 NTU, dissolved oxygen 10.01 -9.10 mg/L. All monitored parameters that are the basis of identification of the water quality indices, during monitored time interval, April 1st - June 26th 2013 framed within normal admitted limits, which demonstrate the lack of pollution of this river segment.

scholarly journals Application of the Channel Water Balances Method for the Samur River Accounting and Reliability/coordination Analysis for the Samur River Runoff

2016 ◽  
pp. 4
Author(s):  
Keyword(s):  
Reliability Analysis ◽  
River Runoff ◽  
Mountain River ◽  
Input And Output ◽  
Channel Water ◽  
Observation Series ◽  
Complete Set ◽  
Water Balances ◽  
The Individual

Special features of the channel water balances method application for the runoff accounting reliability analysis at the rivers with complicated hydro/morphological regime (a mountain river with the wide floodplain and a multi/armed channel) have been discussed. The individual balance components contribution has been assessed. Assessments of the runoff hydrometric accounting inaccuracies have been obtained for the Samur River and its tributaries’ ranges. The channel water balances calculation outcomes for various time spans (daily, decade, monthly, and annual) have been listed. When analyzing a many-year observation series results for the Samur River runoff at the range between Akhta and Usukhchay hydrological stations numerous runoff discrepancies (losses) have been revealed. Suppositions on the possible causes of the runoff portions’ loss at the approaching to the closure range have been formulated. The method has been recommended provided the accounting of the possibly complete set of the balance input and output components.

EXTREME DETERIORATION OF WATER QUALITY AND FISH SUFFOCATION PHENOMENA IN THE MARINE ESTUARY

2017 ◽  
Author(s):  
Kira Slepchuk ◽  
Kira Slepchuk ◽  
Tatyana Khmara ◽  
Tatyana Khmara ◽  
Ekaterina Mankovskaya ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Temperature ◽  
River Runoff ◽  
Small River ◽  
Fish Kill ◽  
Water Stratification ◽  
Temperature Water

The factors that provoke fish suffocation in an estuary, namely: natural (small river runoff, high air and water temperature, water stratification) and anthropogenic (regulation of river, etc.) were marked. Taking into account these factors the calculations were carried out and the possible areas of the Dnieper-Bug estuary, where fish kill of different scale and genesis is found out were identified.

scholarly journals Climate has minor influence on mountain river runoff ratios

Eos ◽  
2012 ◽  
Vol 93 (8) ◽  
pp. 86-87
Author(s):  
Colin Schultz
Keyword(s):  
River Runoff ◽  
Mountain River ◽  
Minor Influence

scholarly journals DETERMINATION OF FACTORS OF FORMATION OF QUALITATIVE COMPOSITION OF SURFACE WATER OBJECTS BY THE METHOD OF MAIN COMPONENTS (ON THE EXAMPLE OF RIVERS OF THE DNIEPER BASIN)

2021 ◽  
pp. 31-35
Author(s):  
Roman Ponomarenko ◽  
Leonid Plyatsuk ◽  
Josef Zat’ko
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Resources ◽  
River Runoff ◽  
Water Bodies ◽  
State Agency ◽  
Local Conditions ◽  
Surface Water Bodies ◽  
Main Components

The article analyzes the water quality of surface water bodies (on the example of rivers of the Dnieper basin) by the method of main components, identifies and interprets the main factors that form long-term variability of water quality of surface water bodies and make different contributions to the total variance. The research was carried out according to the samples of control water intake of the Dnieper River within the Basin Water Resources Management at 12 posts, for the period from 2011 to 2020. The leading factors were identified: plant and animal organisms (12…39 %), leaching of Fe- and Cu-containing minerals (10…29 %). The article shows that in the formation of the chemical composition of the water of the rivers of the studied region is determined by the factor of ion from the rocks on which the formation of the catchment. A factor characterizing the local conditions of river runoff formation has been identified - the process of groundwater discharge, which is manifested in changes in the concentrations of silicon and nitrates. In addition, a negative dependence of changes in the content of silicon ions and nitrates on temperature. The originality of the study is based on an integrated approach, which includes research based on available data in the State Agency of Water Resources of Ukraine, which takes into account the principles of biodiversity conservation, sustainable use of water resources, river management and basins, monitoring and evaluation of their status. In the future, the proposed approach may be the subject of research in the direction of establishing factors that characterize the local conditions of formation of river runoff, including taking into account the man-made load on it.

scholarly journals Space/time Variability of the Cherek-Bezengiysky High/mountain River Water Quality Variabiliy

2014 ◽  
pp. 23-32
Author(s):  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Nature Reserve ◽  
Space Time ◽  
Time Variability ◽  
High Mountain ◽  
Mountain River ◽  
Water Quality Indicators ◽  
Water Chemical Composition ◽  
Composition Monitoring

Results of the Cherek-Bezengiysky River water chemical composition monitoring within the boundaries of Kabardino-Balkaria State High-mountain Nature Reserve are presented. As a result of the conducted research some regularities in space/time variability of the water quality indicators have been found out.

scholarly journals Analysis of the total phosphorus runoff in the Neva River

2020 ◽  
Vol 163 ◽  
pp. 03013
Author(s):  
Vladislav Shelutko ◽  
Alla Govor ◽  
Denis Alexeev
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Total Phosphorus ◽  
River Runoff ◽  
Water Quality Assessment ◽  
Neva River ◽  
Analysis Of Dynamics ◽  
Phosphorus Runoff

The paper deals with the problems of water quality assessment taking into account the features of hydrochemical information. The analysis of dynamics of total phosphorus into the Neva River runoff from 1978 to 2017 is presented.

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