Improvement priorities for sewage treatment in Latvian small and medium sized towns

1998 ◽  
Vol 37 (8) ◽  
pp. 137-144 ◽  
Author(s):  
J. C. Martin ◽  
C. Hoggart ◽  
A. Matisa
Keyword(s):  
Rural Areas ◽  
Sewage Treatment ◽  
Investment Strategy ◽  
Policy Goals ◽  
Best Value ◽  
Receiving Waters ◽  
The Many ◽  
The Baltic ◽  
Technical Solutions

This paper describes the development of a strategy to identify the priorities for investment in sewage treatment in the rural areas in Latvia. The strategy is developed from the baseline conditions ascertained for the present quality of the many receiving waters (rivers, lakes, ground water and the Baltic Sea) and from the condition of the 800 Plus sewerage systems which serve all of the small and medium sized towns in the country. Technical solutions are developed consistent with Latvian policy goals and the priorities established for improvement to the environment and public health. An investment strategy has been prepared to optimise the use of the available funds, to achieve the best value for money. It has been agreed in consultation with interested parties at national, regional and local levels, to produce a plan with wide acceptance. The strategy is known in Latvia as ‘800 Plus’.

scholarly journals TECHNICAL SYSTEMS AND MEASURES TO ENSURE THE QUALITY OF THE LIVING ENVIRONMENT OF THE POPULATION IN CONDITIONS OF NEGATIVE IMPACTS

2019 ◽  
Vol 10 (3) ◽  
pp. 44-52
Author(s):  
T. P Kasharina ◽  
E. S Sidenko ◽  
K. P Valuysky
Keyword(s):  
Natural Disasters ◽  
Rural Areas ◽  
Urban Areas ◽  
Environmental Safety ◽  
Living Environment ◽  
Rural Settlements ◽  
Protective Measures ◽  
Negative Impacts ◽  
Technical Solutions

In accordance with the priority directions of development of science and technology of the Russian Federation until 2025, the issues of developing and creating methods for the environmental safety of urban areas in areas affected by natural disasters, accidents, catastrophes, etc., as well as protective measures are being addressed. Organizational-economic groups should carry out regulation in rural areas of industrial and private enterprises, which are located near urban and rural settlements, developing measures and laws ensuring environmental safety, preserving local forests, limiting the load on pastures, protecting them from fire and maintaining constant monitoring them. In this paper, special attention is paid to natural disasters and reducing the severity of the consequences after them (mudflows, landslides, fires, etc.). To reduce the effects of natural and man-made factors, we have created new technical solutions with the use of composite nanomaterials and ground-filled, ground-reinforced, cable-stayed, etc. protective systems, which are presented below.

Wastewater Disposal in the Rijeka Region

1986 ◽  
Vol 18 (9) ◽  
pp. 77-84
Author(s):  
M. I. Mastrović ◽  
G. D. Šilović
Keyword(s):  
Coastal Waters ◽  
Significant Contribution ◽  
Sewage Treatment ◽  
Legal Regulations ◽  
Wastewater Disposal ◽  
Receiving Waters ◽  
Environmentally Sound ◽  
Year 2000 ◽  
The Impact

This paper emphasizes the need for detailed analysis of wastewaters and their impact on the environment in physical plans for urban/tourist coastal areas, as a significant contribution to environmentally sound development, especially the development of tourism in these areas. The paper describes an analysis of this kind, prepared as part of the Regional Physical Plan for the Rijeka Region to the Year 2000. (The Rijeka Region is a major part of the Yugoslav Upper Adriatic.) The existing situation regarding sewerage systems, sewage treatment methods and disposal methods of the communes of the Region is presented. The quantities of wastewaters generated by the residential and tourist populations and by industry are given (by sub-regions) as calculated in 1981 and as estimated for the year 2000. A survey was made of the impact of wastewater on receiving rivers and coastal waters, and the quality of the receiving waters is given, in grades as compared with those prescribed by the Yugoslav legal regulations. Based on urban development concepts, and on the estimated wastewater quantities, alternative forecasts are made of the future impact of wastewater on coastal waters. General guidelines are presented for the provision of adequate sewage disposal facilities in order to achieve the optimum situation.

CREATING CONDITIONS FOR ENTREPRENEURSHIP DEVELOPMENT IN RURAL AREAS

2018 ◽  
Vol XX (1) ◽  
pp. 111-116 ◽  
Author(s):  
Iwona Pomianek ◽  
Magdalena Niewęgłowska
Keyword(s):  
Rural Areas ◽  
Local Governments ◽  
Local Community ◽  
Sewage Treatment ◽  
Road Construction ◽  
Limited Budget ◽  
Local Roads ◽  
Working And Living Conditions ◽  
Training Services

The aim of the paper was to identify instruments that municipal authorities can use to stimulate development of entrepreneurship in rural areas. The activities of local governments aimed at improving working and living conditions such as the investments in the area of road construction or renovation as well as in the construction and modernization of sewerage systems and sewage treatment plants. Entrepreneurs and owners of already operating enterprises were much less often provided with advisory and training services. The limited budget resources of a municipality enforce the decision which needs of the local community should be satisfied in the first place. Investments in technical infrastructure, eg. improvement of the quality of local roads or construction of new roads bring relatively quick and measurable effects: they are noticeable by the community and can be an important opportunity when assessing activities of the local authorities.

scholarly journals Analysis of USDA Funded Rural Development Research Programs in the United States and the Southern Region

1979 ◽  
Vol 11 (1) ◽  
pp. 145-152
Author(s):  
Daniel Otto ◽  
Joseph Havlicek
Keyword(s):  
Rural Development ◽  
Rural Areas ◽  
The United States ◽  
Social Conditions ◽  
Academic Disciplines ◽  
Government Agencies ◽  
Development Research ◽  
The Many ◽  
Broad Scale

The improvement of economic and social conditions in rural areas has long been a special goal in our nation's history. Rural development is a broad-scale effort encompassing the many dimensions or conditions which determine the quality of life, such as access to public services and facilities, economic development, and the protection or enhancement of natural and environmental resources. As suggested by this diversity of programs, numerous government agencies and academic disciplines are involved in the process of rural development.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

The Relationship between the Development of Human Capital and the Agricultural Economy in Rural Areas

2020 ◽  
pp. 61-65
Author(s):  
B.A. Voronin ◽  
◽  
I.P. Chupina ◽  
Ya.V. Voronina ◽  
◽  
...  
Keyword(s):  
Human Capital ◽  
Rural Areas ◽  
Agricultural Production ◽  
Agricultural Sector ◽  
Real Life ◽  
Standard View ◽  
Household Factors ◽  
Economic Transformations ◽  
The Relationship

The article discusses a non-standard view of the formation of human capital for work in organizations of the agricultural sector of the economy, in the context of modern socio-economic transformations. In the classical sense, human capital for agriculture should be formed and developed in rural areas. But in real life, this is not always the case, because there are many factors that prevent the classical solution of this problem. First, the demographic factor affects, second, social and household factors, and third, in many rural areas there are no working agricultural organizations where qualified agricultural specialists can work. All these and other circumstances actualize the problem of the quality of human capital in rural areas in relation to the development of agricultural production.

Management of Water Cycle: An Approach to Urban Ecology

1992 ◽  
Vol 27 (2) ◽  
pp. 221-238 ◽  
Author(s):  
W. Ripl
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Water Cycle ◽  
Cooling System ◽  
Thermal Power ◽  
Sewage Treatment ◽  
Balance Sheet ◽  
River System ◽  
Soil Restoration ◽  
Environmental Damage

Abstract Densely populated urban areas, which have developed over the last century, depend heavily on centralized water supply, sewage treatment plants, and hydroelectric or thermal power generation with vast demand of cooling water. Considerable areas have been drained or sealed, and the short-circuited water cycle has been distorted. Large rivers have been converted to shipping canals with the permanent risk of accidental pollution. Technical means such as sewage treatment, air filters, emission control and lake and soil restoration measures have contributed to correct the environmental damage. However, a balance sheet for irreversible matter losses (mainly base cation charges) from the urbanized areas and the surrounding landscape into the sea shows ever-increasing trends. These losses are destabilizing the ecosystems. In this paper, management of the water cycle in urban areas, together with the coupled matter cycles, is discussed. Particular reference is given to Metropolitan Berlin, with a network of shipping canals, which move biologically treated waste, containing base cations and nutrients to the surrounding rural areas. This could create manageable productive wetlands and re-establish soil fertility. At the same time, the natural cooling system close to the urban areas will be improved by providing more areas with permanent vegetation. In addition, reduction of the present large oscillations of the groundwater table, resulting from groundwater pumping and its recharge with less polluted surface water, is contemplated. The widely used shoreline infiltration of the Havel River should then be eliminated and the severe damage of the littoral vegetation in large sections of the Havel River system be avoided.

Optimization of Nutrient Removal in Stockholm

1991 ◽  
Vol 24 (7) ◽  
pp. 103-111 ◽  
Author(s):  
G. Brattberg ◽  
L.-G. Reinius ◽  
M. Tendaj
Keyword(s):  
Nutrient Removal ◽  
Sewage Treatment ◽  
Water Source ◽  
Chemical Precipitation ◽  
Phosphorus Load ◽  
Sewage Treatment Plants ◽  
Limiting Nutrient ◽  
Baltic Proper ◽  
Mechanical Stage ◽  
The Baltic

Stockholm was founded at the point where the waters of Lake Mälaren emerge into the Baltic Sea. Lake Mälaren is the water source of the water works of Stockholm. The Lake also receives water from one of the sewage treatment plants. The outlet from the two other sewage treatment plants are in the inner part of the archipelago. During 1968-73 the treatment was improved, after which the phosphorus load to the receiving water significantly decreased. The total P concentration in the surface water has decreased since 1970 and phosphorus has replaced nitrogen as the most limiting nutrient throughout the entire archipelago within 50 km from Stockholm. To further reduce the eutrophication a continued reduction of the phosphorus load is most effective. For the Baltic proper as a whole, where primary nitrogen limitation is present, it is important to reduce the supply of nitrogen to the greatest possible extent. The treatment plants in Stockholm are located in subsurface rock-chambers. The treatment includes mechanical, biological and chemical treatment. In the mechanical stage the sewage is treated in screens, grit chambers and primary sedimentation. The biological stage is a conventional activated sludgeprocess. For the chemical precipitation ferroussulphateis added before the screens. The sludge is stabilized in anaerobic digesters and dewatered in centrifuges before disposal on farmland. To meet more stringent requirements on nitrification and nitrogen removal several projects are going on to optimize the nutrient removal. The aim of these investigations is to improve the plants' performance within the existing plant.

Sewage Treatment in Helophyte Beds–First Experiences with a New Treatment Procedure

1987 ◽  
Vol 19 (10) ◽  
pp. 1-10 ◽  
Author(s):  
K. Bucksteeg
Keyword(s):  
Waste Water ◽  
Rural Areas ◽  
Root Zone ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Uptake Capacity ◽  
Humid Climate ◽  
Climate Conditions ◽  
Trickling Filters ◽  
Operation Conditions

Waste water treatment in helophyte beds under humid climate conditions has been favoured by some German ecologists for some years. The idea is to cause waste water to flow horizontally through the root zone of helophytes to achieve satisfactory effluent properties. There exist many highly different proposals regarding the choice of soil and helophytes to be applied, bed area, design of inlets and outlets and operation conditions. A few plants have been operated in practice for some years. It appears that clogging is one of the main problems occurring in these plants. The hydraulic uptake capacity of soil is discussed in Darcy's law. Comparisons with observations of plants in operation are drawn. The interactions between soil properties, its uptake capacity, BOD5-, COD-, N- and P-reduction are evaluated. The effluent results of helophyte beds are compared with those of low-loaded trickling filters and of ponds used for sewage treatment in small villages in rural areas of Germany. It has been proved that the total construction costs of sewage treatment plants with helophyte beds used as the biological stage are higher when compared with those of conventional plants in general.

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