STATUS AND CHALANGES ORLIN DIKOV INFRASTRUCTURE CONSULTANT BULGARIAs MAIN STEPS TOWARDS the EU 1995 Submitted Application for EU membership 2000 Accession negotiations were opened ID: 524967
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Slide1
WASTEWATER TREATMENT IN BULGARIASTATUS AND CHALANGES
ORLIN DIKOV – INFRASTRUCTURE CONSULTANTSlide2
BULGARIA’s MAIN STEPS TOWARDS the EU
1995
Submitted Application
for EU
membership
2000
Accession
negotiations
were opened
2004
European
Council
confirmed
the conclusion of accession
negotiations
2005
The
Accession Treaty was
signed in
Luxembourg
2006
Monitoring report confirmed Bulgaria is prepared to political, economic and acquis criteria by January 1, 2007
1
January
2007
The Accession Treaty came into forceSlide3
commitments as per the Accession
TREATY
Agglomerations of more than 10,000 PE – Dec.
31, 2010
All agglomerations are provided with collecting systems for urban wastewater (Art. 3)
Urban
wastewater entering collecting systems shall before discharge be subject to secondary
or an equivalent treatment
for all discharges from
agglomerations (Art. 4)
Urban
wastewater entering collecting systems shall before discharge into sensitive areas be subject to stringent
than
secondary
or
an equivalent treatment for all discharges from
agglomerations (Art. 5)Slide4
commitments as per the Accession
TREATY - 2
Agglomerations a PE of between 2,000 and10,000 - December
31,
2014
All agglomerations are provided with collecting systems for urban wastewater (Art. 3)
Urban
wastewater entering collecting systems shall before discharge be subject to secondary
or
an equivalent treatment for all discharges from
agglomerations (Art. 4)Slide5
commitments as per the Accession
TREATY - 3
Sensitive areas (Art. 5)
Water body which is found to be eutrophic or which in the near future may become eutrophic if protective action is not taken
Identification
of Sensitive areas was carried out
in 2003
About 90% of the water bodies are identified as sensitive areas, which requires stringent than secondary treatment of the wastewater discharged into these bodiesSlide6
commitments as per the Accession
TREATY - 4
Reporting according to Art. 15, 16 and 17
Compliance
with the
UWWTD of
the discharged treated wastewater and quantity of generated sludge -
within
6 months
upon
request of the
EC
Public report -
prepared every
2
years and contains information on the implementation of the
Directive
Program
for implementation of the Directive
requirements -
prepared every
2
yearsSlide7
INSTITUTIONAL SETUP OF THE WSS
SECTORSlide8
COMPLIANCE WITH THE
UWWT
DIRECTIVE
SERVICES
COVERAGE (National Statistical Institute)
% of Population connected to Wastewater Collecting Systems
2000 – 66.7%
2007
–
69.7% 2014
- 74.9%
% of Population connected to WWT Plants
2000 –
36.9% 2007
–
42.3% 2014
- 56.8%
COMPLIANCE BY 2012 (Eight EC report of March 2016)Art. (3) – 12 % Art. (4) – 11% Art. (5) - 1%Slide9
COMPLIANCE WITH THE
UWWT
DIRECTIVE - 2
“The
prospects of achieving the necessary progress, solely through infringement procedures, are not
encouraging” – 7
th
report of the EC on compliance
2012 – EC promoted “new
approach” of reaching
compliance through partnership implementation agreements
By 2014 each MS should establish or revise the UWWTD implementation plan
2014
–
GoB
approved revised implementation plan
with deadline for
full compliance by December, 2023Slide10
Main challenges
in reaching
compliance AND SUSTAINABILITY
Planning,
Design
and
Construction Phase
High
investment needs
Difficult mobilization
of the necessary funding
Complex project preparation and implementation procedures
Insufficient
administrative and technical capacity to prepare and implement projects
Delays in projects’
implementation
Slide11
Main challenges
in reaching
compliance AND SUSTAINABILITY
Operational
Phase
Insufficient professional and technical staff to operate and maintain WWT
facilities
Inadequate
tariffs to allow sustainability of the projects vis a vis the sector
Lack
of appropriate conditions for adequate sludge disposal in line with the requirements of the Sludge and Waste DirectivesSlide12
Recommendations
fOR
sustainable wastewater
treatment
Include performance improvement in the Projects objectives
Involve WSS
Operators
at
the
earliest
stage of the project preparation
Design WWT facilities on the basis of measurements of Flows and
Loads
Make early planning/training of the necessary
staff to operate and maintained the WWT
facilitiesSlide13
EXAMPLE OF SUSTAINABLE wastewater
treatment in
Bulgaria – SOFIA WWTP
1984 – Put into operation
Treatment capacity – 480 000 m3/day
Activated Sludge Process
20 Coarse and Fine Rakes
3 Aerated Grit Removal Chambers
4 Primary Settlers with D=54 and depth=5m
Slide14
EXAMPLE OF SUSTAINABLE wastewater
treatment in
Bulgaria – SOFIA WWTP
6 Aeration Basins – 150m by 36m
6
Secondary Settlers
2011
- Tertiary treatment introduced
Anaerobic
sludge treatment in methane tanks
2009
- Co-generation unit for methane utilization
Sludge applied on agricultural land – 20,000 tones ds/year
By 2020 sludge incineration and utilization of Phosphorus