Impacts of River Training on the Quality of Bank-Filtered Waters

1990 ◽  
Vol 22 (5) ◽  
pp. 167-172 ◽  
Author(s):  
F. László ◽  
Zs Homonnay ◽  
M. Zimonyi
Keyword(s):  
Drinking Water ◽  
Case Studies ◽  
Biologically Active ◽  
Ammonium Ion ◽  
Training Structures ◽  
Hydraulic Conditions ◽  
River Training ◽  
Filter Layer ◽  
Iron And Manganese

The impacts of river training and gravel dredging on the quality of bank filtered waters are considered along the Danube sections upstream and downstream of Budapest, where important sources of drinking water are situated. Case studies are presented to show that training structures and dredging operations affect the hydraulic conditions in the river that are conducive to silting in areas with reduced flow velocities. Adverse hydrochemical changes occur in the silted filter layer, especially the dissolution of iron and manganese,and higher concentrations of ammonium-ion are observable. Dredging tends to disrupt the biologically active filter layer, while the ensuing bed degradation causes changes in the inflow ratio, increasing the proportion of polluted groundwater from the background areas in the wells.

scholarly journals The Water Safety Plan Approach: Application to Small Drinking-Water Systems—Case Studies in Salento (South Italy)

2021 ◽  
Vol 18 (8) ◽  
pp. 4360
Author(s):  
Francesca Serio ◽  
Lucia Martella ◽  
Giovanni Imbriani ◽  
Adele Idolo ◽  
Francesco Bagordo ◽  
...  
Keyword(s):  
Drinking Water ◽  
Case Studies ◽  
Distribution Systems ◽  
Water Systems ◽  
Water Safety ◽  
Quality Of Water ◽  
Safety Plan ◽  
Water Safety Plan ◽  
Drinking Water Systems

Background: The quality of water for human consumption is an objective of fundamental importance for the defense of public health. Since the management of networks involves many problems of control and efficiency of distribution, the Water Safety Plan (WSP) was introduced to address these growing problems. Methods: WSP was applied to three companies in which the water resource assumes central importance: five water kiosks, a third-range vegetable processing company, and a residence and care institution. In drafting the plan, the terms and procedures designed and tested for the management of urban distribution systems were applied to safeguard the resource over time. Results: The case studies demonstrated the reliability of the application of the model even to small drinking-water systems, even though it involved a greater effort in analyzing the incoming water, the local intended use, and the possibilities for managing the containment of the dangers to which it is exposed. This approach demonstrates concrete effectiveness in identifying and mitigating the dangers of altering the quality of water. Conclusions: Thanks to the WSP applied to small drinking-water systems, we can move from management that is focused mainly on verifying the conformity of the finished product to the creation of a global risk assessment and management system that covers the entire water supply chain.

scholarly journals Veterinary and sanitary characteristics of quail meat by feeding nanocrystalline cerium dioxide

2021 ◽  
pp. 27-36
Author(s):  
V. Zotsenko ◽  
V. Dzhmil ◽  
D. Ostrovskiy ◽  
A. Andriichuk ◽  
T. Melnyk
Keyword(s):  
Drinking Water ◽  
Volatile Fatty Acids ◽  
Feed Additives ◽  
Biologically Active ◽  
Feed Additive ◽  
Average Weight ◽  
Free Access ◽  
Biological Value ◽  
Experimental Group

The unresolved problem of quail is feed stress and high sensitivity of poultry of this species to feed quality. To eliminate such consequences it is possible with the use of various biologically active feed additives. However, their introduction into the diet automatically raises questions about the quality and safety of the products for the consumer. The purpose of the research is to conduct a veterinary and sanitary assessment of the quality of quail meat for feeding NDC. The purpose of the research is to conduct a veterinary and sanitary assessment of the quality of quail meat for feeding NDC. The object of study were the quails of the Pharaoh breed, at the age of 24 were divided into two groups: experimental and control 30 heads each. The birds were kept in cages with free access to food and water. Quails of the experimental group were added to drinking water feed additive "Nanocerium" at a dose of 8.6 mg per liter of drinking water. Nanocerium feed additive is an aqueous dispersion of NDC with average nanoparticle sizes of 2–7 nm. Antemortem examination of quails of both groups revealed a satisfactory clinical condition of birds. The average weight of the gut carcass of quails of the experimental group was higher by 8.3% compared to the control. Examination of 20 carcasses of quails showed that they can be classified as first class. According to organoleptic parameters, quail meat is of good quality in veterinary and sanitary terms. Microbiological studies of quail meat indicate no effect of NDC in the applied doses on its bacterial contamination. Chemical parameters of meat (pH, aminoammonia nitrogen, volatile fatty acids during storage in the refrigerator) (5 days, t = 4–5 ° C) tended to increase and were within the normal range for fresh product. Tissue in quails of both groups was not detected. The biological value of quail meat in both groups was identical and no toxicity. Tasting evaluation of the broth and meat showed that NDC did not affect the studied taste. The obtained results show that the quails that received the feed additive "Nanocerium" with water according to the indicators of veterinary and sanitary examination are of good quality, which allows to use it in human food without restrictions. Key words: poultry, nanocerium, organoleptic evaluation, microbial contamination, biological value, tasting evaluation.

scholarly journals Justification of modernization of groundwater treatment station

2021 ◽  
Vol 263 ◽  
pp. 04049
Author(s):  
Zhanna Govorova ◽  
Olga Zubareva ◽  
Vasiliy Semenovykh ◽  
Ekaterina Muraveva ◽  
Olga Yankovskaya
Keyword(s):  
Drinking Water ◽  
Technical Condition ◽  
Silica Sand ◽  
Groundwater Treatment ◽  
Concrete Corrosion ◽  
High Silica ◽  
External Corrosion ◽  
Manganese Compounds ◽  
Iron And Manganese

The main contaminants of groundwater are iron and manganese compounds, increased hardness, which are removed at groundwater conditioning stations. The article reviews the existing station that was built according to a conventional design and uses the method of simplified aeration with the following filtration through high-silica sand. Assessment of the technical condition of the station showed that the elements of the building are limited to work The filters are in poor condition, some of the filters are out of service, there are concrete corrosion, destruction of finishing layers in filters’ building, internal and external corrosion of metallic pipelines and valves, which depend on he quality of transported water. Wear of the technological pipelines is over 80%. Analysis of the efficiency of the station showed that it operates at 50% capacity and at the same time does not provide standards for the hardness of drinking water. Water consumption for the station’s own needs is 1.5 times higher than it was designed. There are no processing and reusing facilities for flushing water. Results of the technical and technological inspection of the station showed that there is a need for immediate modernization of the station including the improvement of the groundwater purification technology and bringing he quality to the standards for drinking water.

Assessment of Drinking Water Quality of Targu Jiu City by Analyzing Physical and Chemical Quality Parameters

2017 ◽  
Vol 68 (3) ◽  
pp. 439-446
Author(s):  
Daniela Cirtina ◽  
Camelia Capatina
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Parameters ◽  
Ammonium Ion ◽  
Residual Chlorine ◽  
Human Consumption ◽  
Chemical Quality ◽  
Monitoring And Control ◽  
Aluminum Ions

Monitoring and control of water quality for human consumption aims to verify if the water available to consumers meets the requirements of relevant legislation and in particular the values of parameters established. The paper presents a study on the assessment of the quality of drinking water distributed in the city of Targu-Jiu by analyzing the following physico-chemical quality parameters: pH, conductivity, turbidity, ammonia, nitrites, nitrates, chlorides, residual chlorine, hardness and aluminum ions content. From the results, it has been found that during 2013-2015, there were exceedings of the maximum permitted levels for residual chlorine and ammonium ion in drinking water samples.

Семенная продуктивность свеклы: влияние биологически активных препаратов

2018 ◽  
Author(s):  
L.A. Yusupova
Keyword(s):  
Biologically Active ◽  
Single Plant ◽  
Vegetative Part ◽  
Red Beet

Приведены результаты влияния биологически активных препаратов (БАП) на продуктивность семенного куста раздельноплодной (одно-двусемянной) свеклы столовой сорта Хуторянка. Обработка растений БАП повлияла на формирование надземной вегетативной части растений и на качество семян свеклы столовой, а также позволила повысить выход семян с одного растения и улучшить качество семян.The results of the influence of biologically active preparations on (BAP) the productivity of the seed bush of a single-seeded (one-seeded) red beet of Khutorianka cultivar are given. The treatment of plants of the BAP influenced the formation of the aboveground vegetative part of plants and the quality of beet seed, and also increased the yield of seeds from a single plant and improved the quality of seeds.

Productivity and technological qualities of pork when using biological drugs

2020 ◽  
pp. 12-28
Author(s):  
O. Mikheeva ◽  
V. Fedyuk ◽  
M. Slozhenkina
Keyword(s):  
Endocrine Cells ◽  
Intestinal Microflora ◽  
Biologically Active ◽  
Large White ◽  
Biological Drugs ◽  
Animal Blood ◽  
Intestinal Microbiology ◽  
White Breed ◽  
Meat Productivity

In world practice biologically active drugs are widely used at different technological stages of rearing pigs, poultry and cattle. Special attention should be paid to bio-grugs obtained not as a result of chemical synthesis, but isolated from organs and tissues of healthy animals. Restoration of normal intestinal microflora of the animal is the basis of the concept of probiotics. Currently, probiotics are considered as endogenous intestinal microflora most often belonging to the group of lactobacilli, streptococci or bifidobacteria or as specific growth factors for them. Probiotics are selected according to certain criteria based on scientific knowledge of the physiology of intestinal microbiology, as well as animal nutrition. The purpose of the work was to study the effect of biological products on resistance, reproductive, fattening and meat productivity of pigs, on the quality of whole-muscle and fine-structured pork products; to develop a method of application of duodenum extract in combination with probiotics to increase the productivity of pigs. Studies on the effect of extracts derived from endocrine cells of the intestine, in combination with probiotics on the productivity of pigs of Large White breed and the quality of pork, as well as studied the effect of duodenins and probiotics in different concentrations on the protective properties of animal blood have been carried out. New methods of application of extracts of endocrine cells of intestines and probiotics for increase of meat productivity of animals and quality of pork have been offered. The use of bio-drugs increased the livability of young animals in all experimental groups from 1st to 4st by 3,51; 6,05; 4,95 and 5,90 %, respectively. There was an advantage in the amount of revenue from the sale of products of all experimental groups over the control one.

Gender and Regional Differences in the Life Expectancy in Russia

2020 ◽  
Vol 27 (1) ◽  
pp. 106-120 ◽  
Author(s):  
L. A. Rodionova ◽  
E. D. Kopnova
Keyword(s):  
Drinking Water ◽  
Alcohol Consumption ◽  
Life Expectancy ◽  
Gender Gap ◽  
Poor Quality ◽  
Living Conditions ◽  
Regional Differentiation ◽  
Russian Regions ◽  
Poor Nutrition

The relevance of the chosen topic is closely related to the development of a system for monitoring the implementation of the May Presidential Decree (2018) to increase life expectancy and improve the quality of life of the population. It has been stated that despite the positive dynamics of life expectancy over the past decade, Russia still has a huge regional differentiation (16,6 years for women, 18,2 years for men in 2016) and an average gender gap - 10,6 years. The choice of factors affecting the gender gap in life expectancy in Russian regions is supported by a conclusion most common in foreign studies that climatic conditions, living conditions, the quality of food and drinking water, alcohol consumption are essential components of public health and life expectancy.The article provides an overview of studies on assessment factors of life expectancy, presents the authors’ approach to identifying gender gaps in life expectancy, living conditions, and lifestyle affecting the indicator of life expectancy. The paper presents the results of a comparative analysis of gender gap in life expectancy in Russia and foreign countries. The paper studies the correlation between living conditions and lifestyle, and life expectancy.Classification of the regions by the life expectancy at birth for men and women is an important component of this study. The authors used Rosstat data for 2016 and the k-means method to select three clusters of Russian regions taking into account gender, living conditions and lifestyle. The paper identifies similar health problems of the regions that are associated with alcohol consumption, poor nutrition and poor quality of drinking water, poor housing and living conditions. The lowest life expectancy rates for men and women are recorded in regions of the 1st cluster (Jewish Autonomous Region, Republic of Tuva, Chukotka Autonomous Area). High mortality rates are a result of external causes. There is a poor quality of drinking water and poor nutrition, excessive alcohol consumption, and inadequate housing conditions.Based on the obtained results were determined possible reserves for reducing the gender and regional differentiation of life expectancy.

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