Presentation about water waste plants for the meeting in Romania

1. WATER AND
WASTEWATER MANAGEMENT
IN BULGARIA
Comenius Project “Life by the water”
General Secondary School “Hristo Botev” -
Aytos
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2. Water Resources
General conditions
• Surface water resources – 70% of the total
water resource
• Groundwater resources – 30% of the water
resource
• Quality of the water resources
• Use of the water resources
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3. The average annual water consumption in
the country amounts to some 10-12 billion
m3/year. For the separate sectors of the
economy, it is divided as follows:
- potable water supply - 8-10 %
- irrigation - 5-25 %
- industrial water supply - 20-26 %
- hydro-energy sector - 15-35 %
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4. Fast facts: water supply
status
• Total length of the water-supply network -
72,000 km.
• 11 water reservoirs are in place
• 9,800 water resources for drinking water
• 3,600 pumping stations for water supply.
• There are 55 drinking water treatment
plants in Bulgaria with total productivity of
480,506.000 m3/annually
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5. Water supply and sewerage
conditions:
Constructed water supply systems:
• number of populated areas with water supply systems - 5 031
• percentage of the population living in populated areas with
water supply systems - 98,6%
• The total length of the water supply network is 70620 km.
• 42 PWTPs have been constructed.
• 3 560 pumping stations, 6 087 water reservoirs and a large
number of other facilities have been constructed
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6. Page 6

7. Main Problems in the Water Supply
Sector
• Old Water Supply Networks–by the end of 1980
• Asbestos- cement Pipelines (more then 70%)
• Water Losses from Water Supply Network - up
to 60%
• Shortage of water during the summer (water
regime) – 10-25 % of population
• Build and rehabilitate Drinking Water Purification
plants
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8. Sewerage systems and treatment of the
wastewater of populated areas
• Constructed sewerage network and outside sewers - 9
140 km.
• The percentage of cities with sewerage systems is
70,2%, and the percentage of villages - 2,1%.
• Population covered by sewerage network - 46%.
• As of the end of 2009, 72 wastewater treatment plants
have been constructed and commissioned. Out of
them, 59 work with biological treatment, and the
remaining 13
• only with mechanical treatment of water.
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9. Main Problems in the Sewerage
Sector
• Insufficient sewer networks and main trunks-to
build sewer networks and main trunks
• Out of date or old technology of WWTP-s –
need of rehabilitation and/or upgrade WWTP-s
• To build new WWTP-s - design or redesign
WWTP-s
• Lack of financial resources for building many
WWTP-s for short period to implement National
Program for WWTP-s
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10. Sewerage networks
121 agglomerations with more than 10 000 PE
• 12 agglomerations with 100 % constructed
sewerage network.
• 37 agglomerations with more than 90 %
constructed sewerage network.
• 54 agglomerations with 50 % to 90 %
constructed network.
• 18 agglomerations with constructed network <
50 %
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11. Waste Water Treatment Plants
• Total WWTP-s – 72
• WWTP-s –mechanical treatment– 14
• WWTP-s – biological treatment –58
• Settlements served by WWTP-s - 85
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12. Drinking Water Purification Plant
• Current state
• Drinking Water Purification Plants – 42
• Population served by DWP plants – 43,9
%
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13. National Programs and Strategies
• Strategy for Development and Management of
Water Supply and Sewerage Sector in Bulgaria
• National Regional Development Strategy for the
• period 2005-2015 - MRDPW
• National Program for Construction of Sewer
Networks and Main Trunks to the WWTP-s for the
Settlements with Population over 10 000 PE
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14. WWTP to be constructed in the short
term 121
• 9 WWTP constructed in accordance to the
requirements
• 36 constructed WWTP which need
reconstruction
• 7 WWTP to be completed
• 69 new WWTP to be constructed
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15. WWTP to be constructed in the long term
• 16 WWTP constructed in accordance to the
requirements
• 4 constructed WWTP, need for reconstruction
• 4 WWTP for completion of the construction
• 285 WWTP to be constructed
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16. Problems which have to be solved:
• Bulgarian top resorts dumping waste
water into the sea
• Building waste water cleaning stations for
the mining industry in the Srednogorie
mountains
• Cleaning the Topolica reservoire from
heavy metals
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17. Page 17

18. How can they be solved?
• Bulgaria's Environment Ministry has signed three
contracts for new wastewater treatment plants along the
Black Sea coast worth some BGN 100 M. which are to
be funded under EU Operational Program Environment.
• The National Program for Priority Construction of Urban
Waste Water Treatment Plants and the Implementation
Program of Directive 91/271/EEC stipulate that Bulgaria
is obliged to build more than 400 WWTPs for populated
areas of above 2000 P.E. (population equivalent) by
2014. The deadline will be extended as a result of
program delays.
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19. This project has been funded with support
from the European Commission.
This presentation reflects the views only of
the author, and the Commission cannot be
held responsible for any use which may be
made of the information contained therein.
THANKS FOR YOUR
ATTENTION!
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