1. Inventory of the WWTPs in Slovakia 2. Workshop on Environment In Budapest Ivan Šucha (Statistical Office of the Slovak Republic) Daniela Ďurkovičová (Slovak Hydrometeorological Institute) Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

2. 1. Content of Presentation Topics covered by the service contract Problems and solutions on table 5 Statement on the progress Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

3. 2. Topics Covered by the Service Contract Unification of databases –Statistical Office of the Slovak Republic –Slovak Hydrometoerological Institute –Water Research Institute Inventory of the WWTPs in Slovakia –Types of WWTPs –Preparation of questionnaire and data collection –Usefulness of the inventory Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

4. 2.1. Unification of Databases Establishment of a working group (SO SR, SHMU and VUVH) Inventorying of existing indicators Comparison of methodologies Comparison with JQ Selection of new or missing indicators Elaboration of the timetable Assessment of databases of individual subjects and possibility of integration and the data exchange Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

5. 2.2. Inventory of WWTPs Types of WWTPs –Communal –Municipal –Industrial Property and operation of WWTPs –Water and sewerage companies vs. municipalities –Obtaining the addresses (known and new) Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

6. 2.2. Inventory of WWTPs Preparation of questionnaire –List of indicators –Working out the draft of the questionnaire –Commenting, consulting –Final draft with methodological instructions –Distribution of questionnaires Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

7. 2.2. Inventory of WWTPs Further steps (not covered by service contract) –Collecting of questionnaires and data typing –Prompting and refilling of missing or incomplete questionnaires –Data processing –Maintenance and refilling system –Publishing Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

8. 2.2. Inventory of WWTPs Usefulness of the inventory –Providing data for international needs –Data for decision process on all levels –Backgrounds for deciding to connect to existing WWTP –Background for deciding of the location of new WWTP Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

9. 3. Problems and solutions on table 5 Capacity of WWTPs in terms of BOD –Designed capacity BOD –Actual occupation BOD –Effluent BOD – not solved Monitoring of BOD 5,ATU Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

10. 3. Problems and solutions on table 5 Dividing according to the type of treatment –Primary –Secondary –Tertiary With nitrogen removal With phosphorus removal Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

11. 4. Statement of the progress Comparison of methodologies Obtained addresses (sources): –SO SR –SHMU –VUVH –Other Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

12. 4. Statement of the progress Questionnaire draft Methodological explanatory Final questionnaire for WWTPs –Sent out (more than 800 units) –Communication with Statistical units –Collecting of receiving questionnaires –Preparing macro for data typing and processing Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

13. Questionnaire (for illustration)Questionnaire (for illustration) Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

14. 4. Statement of the progress Main items of questionnaire –Owner –Operator –Location of the WWTP –Type of WWTP (primary, secondary, tertiary) –Treatment methods –Users (key producers of waste water) Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

15. 4. Statement of the progress Main items of questionnaire –Capacity (design and actual) –Dates –Date of reconstruction or significant change –Sludge production –Sludge treatment Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute

16. Thank you for attention Slovak Hydrometeorological Institute Statistical Office of the Slovak Republic Water Research Institute