Water plants rosi

WATER ANDWASTEWATER MANAGEMENT

IN BULGARIA

Comenius Project “Life by the water”

General Secondary School “Hristo Botev” - Aytos

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

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 %

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

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

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

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.

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• Out of date or old technology of WWTP-s – need of rehabilitation and/or upgrade WWTP-s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

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 %

Waste Water Treatment Plants

• Total WWTP-s – 72

• WWTP-s –mechanical treatment– 14

• WWTP-s – biological treatment –58

• Settlements served by WWTP-s - 85

Drinking Water Purification Plant

• Current state

• Drinking Water Purification Plants – 42

• Population served by DWP plants – 43,9 %

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

WWTP to be constructed in the shortterm 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

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

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

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.

THANKS FOR YOUR ATTENTION!

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.

Water plants rosi

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