oecd/eurostat jq inland waters
DESCRIPTION
OECD/Eurostat JQ Inland Waters. Country presentation Lithuania Violeta Juozefaite. TABLE 4:. National population connected to waste water treatment plants. Table 4: data supplied before project. Data sources. Data used from: The Total Population Census, 2001 (SD) - PowerPoint PPT PresentationTRANSCRIPT
04/12/04 Environmental Protection Agency/Lithuania
OECD/Eurostat JQOECD/Eurostat JQ
Inland Waters Inland Waters
Country presentation
Lithuania
Violeta Juozefaite
04/12/04 Environmental Protection Agency/Lithuania
TABLE 4:TABLE 4:
National population connected to waste National population connected to waste
water treatment plantswater treatment plants
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Table 4: data supplied before projectTable 4: data supplied before projectNational resident population 1000’s YES
% of national resident population connected to:
Urban waste water treatment (44), of which (a):
% of pop. NO
- Primary treatment (47) % of pop. NO
- Secondary treatment (48) % of pop. NO
- Tertiary treatment (49) % of pop. NO
Other waste water treatment (b) (45) % of pop. NO
Urban waste water collecting system with treatment (c) % of pop. NO
Urban waste water collecting system without treatment % of pop. NO
Total urban waste water collecting system (41) % of pop. NO
Independent waste water collecting system % of pop. NO
of which with independent treatment (46), total % of pop. NO
of which at least secondary treatment % of pop. NO
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Data sourcesData sources
Data used from:
• The Total Population Census, 2001 (SD)
• Waste water database (EPA)
Data wasn’t included from:
• Regional Environmental Protection Departments
• Municipalities
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The Total Population Census’2001The Total Population Census’2001
• Total population of Lithuania in 2001 – 3 487 000
• In 2003 total population decreased by ~ 41 000, i.e. less
than 1%
• Statistics includes data about ~1500 cities and
settlements with population of > 200, this is ~ 85% of tot.
pop.
• TPC’2001 Questionnaire includes question “Are you
connected to a sewer?”
• Storage tanks are included in WWCS
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Population density in LithuaniaPopulation density in Lithuania
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Waste water databaseWaste water database
• Database includes data on about 1069 WWTPs
• From DB 327 WWTPs were selected which:
a. corresponds to JQ UWWTP and other WWTP, i.e.
IWWTP definitions and
b. have data on influent and effluent about: TSS, BOD
(at least) + COD, N , P.
• No data about independent WWTP is supplied to DB.
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Settlements connected to WWCSSettlements connected to WWCS
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Population excluded from WWT analysisPopulation excluded from WWT analysis
Rule: if settlement’s treatment plant could not be identified
then this settlement is excluded, i.e. defined as not treated
Data about population is excluded:
• in settlements < 200 pop. of all pop. – 516 465 (14.8% )
• in settlements and towns which are connected to WWCS:
with < 1 000 pop. – 288 291 (8.3% of total pop.)
with 1 000 - 2 000 pop. – 36 352 (1.0% of total pop.)
with 2 000 - 10 000 pop. – 47 186 (1.4% of total pop.)
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Identification of WWT categoryIdentification of WWT category
• For identification of a WWT category JQ treatment plants
classification was used
• WWT category of a particular WWTP was identified
according to requirements of UWWT Directive:
i. was applied principle “and” for treatment efficiency for all
indicated parameters
ii. treatment efficiency of Coliforms has not been taken into
account
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Table 4 (interim results for 2003):Table 4 (interim results for 2003):
National resident population 1000’s 3445.7
% of national resident population connected to:
Urban waste water treatment (44), of which (a):
1 % of pop. 59.0
- Primary treatment (47) % of pop. 31.5
- Secondary treatment (48) % of pop. 7.5
- Tertiary treatment (49) % of pop. 20.0
Other waste water treatment (b) (45) 2 % of pop. 2.7
Urban waste water collecting system with treatment (c) 1+2 % of pop. 61.7
Urban waste water collecting system without treatment 3 % of pop. 10.7
Total urban waste water collecting system (41) 1+2+3 % of pop. 72.4
Independent waste water collecting system: % of pop. NO
of which with independent treatment (46), total % of pop. NO
of which at least secondary treatment % of pop. NO
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Waste water treatment in LithuaniaWaste water treatment in Lithuania
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Problems (1)Problems (1)
• TPC’2001 data does not indicate WWCS type, i.e. system
of conduits, storage tanks or combined system.
• There is no data about treatment on part of settlements
which are connected to sewer. In case there is no data
about WWTP in a settlement it’s impossible to indicate
treatment category. Should this part of population be
excluded from WWT, although they maybe are treated?
• Proposals (draft) of the Commission: Storage tanks are no
collecting systems in the terminology of the UWWT
Directive.
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Problems (2)Problems (2)
• There is no definition of individual treatment plant in
Lithuania, so no data about independent treatment is
available in Lithuania.
• Incomplete data on influents. WWTPs usually supply all
required data on effluents, but not so eagerly on influents.
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ConclusionsConclusions
• TPC’2001 data on population could not be used forever.
So, more sophisticated methodology for assessment of
population connected to WWT should be developed.
• Data collecting system in waste water field should be
changed to fill gaps of JQ and to fulfill reporting obligations
to the Commission.
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TABLE 6:TABLE 6:
Sewage sludge production and disposalSewage sludge production and disposal
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Task: Collection of information on sewage Task: Collection of information on sewage
sludge production and disposalsludge production and disposal
Activities:
• Correction of existing order for collection of primary data.
Done
• Analysis of collected primary data. Done
• Preparation of order for national statistical data collection.
On the preparation
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ProblemsProblems
Collected primary data analysis has showed that:
• Significant amount of WWTPs has not supplied data
• Data supplied is not comprehensive
• Majority of WWTPs has not provided data about sewage
sludge amount in dry solids and m3
• Outcome - there is no possibilities to fill Table 6 of JQ Outcome - there is no possibilities to fill Table 6 of JQ
for 2003for 2003
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SolutionsSolutions
• Data collecting problems on sewage sludge in Lithuania
could be and will be solved by legal means only.
• On July, 2004 will come into force package of new legal
acts on statistical accounting of waste (in Lithuania
sewage sludge is attributed to solid waste field):
• The Permits for Activity
• The Waste Treatment Rules
• The Rules on Sewage Sludge Use
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The Waste Treatment RulesThe Waste Treatment Rules
• EWC-Stat included
• Waste recovery [R] and disposal [D] definitions
corresponds to EU legislation and JQ
• Mandatory primary data reporting for waste producers and
treaters
We shall include sewer sludge reporting in dry solids We shall include sewer sludge reporting in dry solids
and cubic metersand cubic meters
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The Rules on Sewage Sludge UseThe Rules on Sewage Sludge Use
• Reporting forms on sewage sludge use will be improved to
fulfil reporting obligations (93/481/EC and 94/741/EC) to
the Commission