137Cs and 90Sr Accumulation by Higher Aquatic Plants and Phytoepiphyton in Water Bodies of Urban Territories

2008 ◽  
Vol 44 (1) ◽  
pp. 48-59
Author(s):  
P. D. Klochenko ◽  
G. V. Kharchenko ◽  
V. G. Klenus ◽  
A. Ye. Kaglyan ◽  
T. F. Shevchenko
Keyword(s):  
Aquatic Plants ◽  
Water Bodies ◽  
Higher Aquatic Plants ◽  
Urban Territories

137Cs in Higher Aquatic Plants and Fish of Water Bodies of Ukraine

2019 ◽  
Vol 55 (3) ◽  
pp. 86-94 ◽  
Author(s):  
Ye. N. Volkova ◽  
V. V. Belyayev ◽  
D. I. Gudkov ◽  
S. P. Prishlyak ◽  
A. A. Parkhomenko
Keyword(s):  
Aquatic Plants ◽  
Water Bodies ◽  
Higher Aquatic Plants

DEVELOPMENT OF PROGRAMS FOR SOLVING TASKS IN THE FIELD OF ENVIRONMENTAL PROTECTION ON WATER CATCHMENT AREAS

2020 ◽  
pp. 27-32
Author(s):  
N.O. NAUMENKO ◽  
◽  
E.V. FEDOTOVA
Keyword(s):  
Aquatic Plants ◽  
Google Earth ◽  
Water Bodies ◽  
Space Images ◽  
Higher Aquatic Plants ◽  
Environmental Monitoring System ◽  
Catchment Areas ◽  
Actual Volume ◽  
Develop Software ◽  
Current Content

The purpose of this work is to develop software for calculating maximum permissible discharges and methods for assessing the overgrowth of water bodies with higher aquatic plants using the publicly available Google Earth program. In this paper, research has been carried out to improve the environmental monitoring system in catchment areas. A new approach is proposed for calculating the maximum allowable discharge for the current volume of water in the reservoir at a specific time. To implement the approach, software has been developed in which calculations are made to determine the value based on the actual volume of water in the Rybinsk reservoir based on the date of the expected discharge of pollutants from enterprises and the current content of pollutants in the water. A method has been developed for assessing the overgrowth of water bodies by higher aquatic plants using the publicly available Google Earth program, which will make it possible to make a forecast of siltation of reservoirs based on the degree of overgrowth. On the basis of the program Google Earth the dynamics of overgrowing of the lake Bezdonnoe is determined on the basis of space images for the 2013, 2015 and 2019 year relative to the 2009 year.

scholarly journals Calculation of the maximum velocity of gravity flow in the pond-clarifier with higher aquatic plants

2020 ◽  
Vol 168 ◽  
pp. 00061
Author(s):  
Yevhen Semenenko ◽  
Tetіana Demchenko ◽  
Artyom Pavlichenko
Keyword(s):  
Free Surface ◽  
Aquatic Plants ◽  
Fluid Velocity ◽  
Maximum Velocity ◽  
Resistance Coefficient ◽  
Gravity Flow ◽  
Recycled Water ◽  
Higher Aquatic Plants ◽  
Two Parameters ◽  
The Given

The analysis of the possible maximum fluid flow rates when using higher aquatic plants for clarification of recycled water in the pondclarifier of the tailing pond has carried out. The study has been performed on the basis of a mathematical model of a plane slow stationary gravity flow of a viscous fluid in two parallel layers. The results of the study made it possible to determine the fluid velocity through a layer of higher aquatic plants floating on a free surface. The maximum possible velocity depending on the layer porosity has been determined. This value is necessary to determine the rational parameters of the process of clarifying technical recycled water from particles of the given hydraulic size, taking into account the pond-clarifier geometric dimensions. It is shown that the velocity in the layer with higher aquatic plants has been determined by the ratio of two parameters of this layer - porosity and dimensionless resistance coefficient. It has been shown that the maximum velocity value coefficient in the layer with plants floating on free surface depends only on porosity of this layer and does not depend on its resistance coefficient.

scholarly journals Determine heavy metals in water, aquatic plants, and sediment in water systems

2020 ◽  
Vol 222 ◽  
pp. 02028
Author(s):  
Hassan Flefel ◽  
Denis Nokhrin ◽  
Irina Donnik
Keyword(s):  
Heavy Metals ◽  
Aquatic Plants ◽  
Water Bodies ◽  
Mobile Form ◽  
Atomic Absorption Determination ◽  
Absorption Determination ◽  
Rivers And Lakes ◽  
Definition Of ◽  
Methodological Guidelines

Objective: Biomonitoring pollution of water bodies with heavy metals using evaluation of the level of concentration of heavy metals in water, aquatic plants, and sediments in 9 important rivers and lakes in the water bodies of Yekaterinburg. (Eight rivers and one lake). Methods: Sample preparation for the atomic absorption determination of the acid-soluble “mobile” form of eight metals (Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) in the composition of bottom sediments was carried out by the method of wet mineralization in accordance with the Methodological Guidelines the definition of heavy metals. Results: All concentrations of heavy metals in sediments and aquatic plants were higher than in a water sample. Conclusions: Concentrations of all water samples were within acceptable limits established by WHO, while the concentrations of all aquatic plants and sediment were above the acceptable limits of WHO.

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