The objective of the scientific and technical project was to bring new scientific and technical information and to implement them in practice in the following areas: protection of rivers from the aspect of exploitation thereof for supply of drinking water to the population, the criteria evaluating exploitability of water resources for supply of drinking water, technologic processes for ensuring good quality drinking water, the effect of erosion and sedimentation processes on the quality of ground and underground waters and on the processes of self-purification, progressive methods applicable in technical practice for realisation of the principles of revitalisation of rivers, and relations of revitalisation of river basins, rivers, and exploitation of water resources in the basin.
The project was divided into six partial tasks:
- Analysis of contamination and improvement of treatability of the resources of drinking water
- Survey of processes for ensuring good quality drinking water
- Erosion and sedimentation processes in the basin and quality of water in rivers
- Hydraulic aspects of revitalisation of rivers
- Environmental aspects of water management solutions in rivers and in the vicinity zone
- Coordination of the scientific and technical project.
The project had interdisciplinary character. It tried to resolve a wide scope of problems of the current water management practice and was aimed mainly at two extremely topic issues of water management, i.e. the complex solution of ensuring good quality of drinking water for the population, and resolving the problems of water management aspect of revitalisation of rivers.
By resolving the project, a complex set of new information has been obtained in the given issue, based on many originally measured data. Application thereof in practice will allow an informed approach in resolving the water management problems.
The most important conclusions from the project:
- the analyses of trends show growing mineralisation in almost all resources, even in regions where they are not directly affected by antropogenous activities as a result of deteriorated quality of precipitation waters,
- use of pesticides, herbicides, and insecticides should be considered and controlled according to the type of soil and the sorption ability thereof, fertilization by nitrates should be applied upon analysis and the contents thereof in soil,
- in order to determine the zones of hygienic protection of water resources, it is recommended to use computer modelling, the generally recognized duration of retaining water in rocks for 50 days need not be sufficient form the aspect of improvement of the microbiologic phenomena;
- it is recommended to re-evaluate the zones of hygienic protection of water resources in karst and dolomite regions, due to high vulnerability thereof.
The results of solution bring specific recommendations.
J. GAJDOVA - In: Vodohospodarsky spravodajca (Water Management Journal) - Year 43, No. 7-8(2000), p. 18-19.
Information & Contact:
Research Institute of Water Management
Vyskumny ustav vodneho hospodarstva,
Nabr. arm. gen. L. Svobodu 5,
811 02 Bratislava
tel.: 00421 (2)59343111,
fax: 00421 (2) 54415743
