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Innovative Landfills in Latvia
– co-creating solutions
2-3 SEPTEMBER 2015
Deadline registration: 04th of August
Introduction
The Innovation Network for Environmental
Technologies (inno-MT) is one of the innovative
network in Denmark dedicated to providing
innovation and the business conditions to aid
cleantech research, development and implementation. Among other things, Inno-MT provides integrated solutions to help public authorities around the world achieve optimum levels
of environment and energy efficiency by using
Danish solutions and technologies. Inno-MT
can bring together various Danish technologies
in the waste sectors on a common platform.
Latvia is divided into 10 waste management
regions. The competent authorities for waste
management on national level comprise the
Ministry of Environmental Protection and Regional Development and its aligned institutions.
Latvia is characterised by a centralised administration structure. However, local authorities
have strong waste control and general influence on the waste management sector in their
territory. During the previous years, more than
500 dumpsites have been closed, gradually
re-cultivated and replaced by regional landfills.
SAMARBEJDSPARTNERE
Solutions for waste management is a matter of
great relevance in Latvia.
Project Description
In April 2015 meetings and discussions were
held with the concerned landfill management
of Daibe, Kivites and Getlini in order to understand the status of the projects and identify areas of collaboration. The details emerged were
as follows:
Landfill Daibe
North Vidzeme regional municipal waste landfill Daibe was constructed in 2004, to meet the
EU environmental requirements. The currently
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available land for waste disposal is 49ha and
the potentially available area is 89ha. The
planned operational time of the landfill is at
least 28 years.
In addition to the first landfill cell, from which
landfill gas is currently been gathered, and
the second cell, in which the waste is currently being added, the landfill site has also
being equipped with a sorted recyclable
waste handling facility and unsorted waste
pre-treatment centre facility. In the sorted
waste handling facility the respective wastes
(paper, cardboard, metal, PET) are re-sorted
and prepared for transfer to re-cycling companies. At the unsorted waste pre-treatment
centre some relevant wastes are sorted out,
e.g., for potential preparation of RDF, while
other parts of waste are shredded for landfilling. The leachate collection and treatment
system is with reverse osmosis, and landfill
gas collection and utilization system in CHP.
Produced electricity is used in administrative
buildings and for technological processes.
recycling company has shut down, and the
materials have been sent to Lithuania to be
recycled. Another valuable resource is tires.
Technology is available for material recycling
for football field cover or reuse of waste
tires within asphalt. A positive dialogue with
Cemex is ongoing for utilizing high quality
material in cement kilns and create a better
value chain. With the EU-directives, a great
interest in small-scale incineration plants
and enzymatic treatment of unsorted municipal waste, that could be introduced in Latvia,
with a capacities around 20 000 tons/year.
Web site: http://www.zaao.lv/public/eng/
Recycling of sorted glass is a challenge, as
there are no recycling facilities, the same
Landfill Getlini
Getlini sanitary landfill site is the largest in
Latvia, approximately 300 trucks daily bring
waste to the landfill from 7:00 till 22:00 excluded in the weekends. The annual capacity
is 500 000 tons of waste. It was created at
the start of 1970s as local people started to
bring their wastes to this swamp area, which
did not have any other type of application.
Approximately 1 000 000 m3 of waste had
been accumulated in the landfill before its
reconstruction. The 87 ha swamp area gradually became contaminated and the pollution
spread also into the groundwater.
problem is actual in the case of paper and
cardboard recycling, since the local paper
During the reconstruction of the landfill and
the development of new waste landfill cells
an approximately 4 meter thick layer of peat
was extracted and sand was filled in and covered with a geomembrane to ensure that no
more pollution is added due to the new cells.
The old waste cell was covered by a water impermeable clay membrane. The membrane is
covered with grass, and in summer time it is
used for the pasture of sheep.
Since 2002 the leachate is treated by a sequence of batch reactor process. Electricity
is continuously produced by 4 co-generation
engines (+ 2 on standby), each of them with
capacity of 500 m3gas/h, that is, 1 MWel
power per engine. Annual electrical production is 30 Gwhel. Produced electricity is sold
Challenges and opportunities:
Incineration and recycling
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arate unit in which C&D waste is being landfilled. The amount of incoming construction
waste is approximately 6 500 tons/year.
to state JSC Latvenergo. Thermal energy is
used for heating of on-site tomato production greenhouse (10 000 m2 of greenhouse
area, 10 512 m2 of plant area, 150 tons of
tomatoes/year).
Challenges and opportunities: Leachate
treatment
The typical amount of leachate is 200 – 300
m3/day, but can increase up to 400 m3/day
in spring time and decrease to 150 m3/day in
dry summer time. The condition is gradually
improving as new leachate is not leaking to
the swamp. As H2S is present in produced
landfill gas, it is also present in the leachate.
Therefore methanol is used in the sequence
batch reactor treatment as a carbon source.
The plan is future treatment of leachate in
the municipal wastewater treatment plant
and Getlini is open to better and economically feasible alternative would be of interest.
Web site: http://www.getlini.lv/en/
Landfill activities
The municipal waste landfill activities receives waste collected from 13 nearest municipalities in Southwest Kurzeme part of
Latvia. The company was established in the
year 2000 as a municipal company. The landfill is in operation since 2004. The amount of
incoming municipal solid waste is approximately 30 000 tons/year. There is also a sep-
Initially it was intended to landfill the waste
in several smaller waste cells and collect
biogas separately from each cell, but this
approach could not provide the necessary
uniform conditions for anaerobic degradation, so the cells were joined. Using produced
landfill gas, electricity is generated in two
engines with a total capacity of 1MWel. All
produced electricity is sold to state JSC Latvenergo. Electricity production constitutes
1/3 of company’s income. Ltd Liepājas RAS
also provides educational events for waste
producers. The leachate treatment process
include the use of sand filters for filtering of
the coarse particles, use of cartridge filters
for fine filtering and the reverse osmosis
process. They treat approximately 7 m3 of
leachate (a mixture from the different units)
at a price of 7 to 10 €/m3. The permeate (80
%) is discharged while the concentrate (20
%) is returned to the landfill for untreated
household waste. They acknowledge that in
the long run the recycling of the concentrate
can be problematic.
Challenges and opportunities: Leachate
treatment, power production and recycling
The potential areas include leachate concentrate utilization (currently being fed back
into landfill as mentioned above), potential
application for waste tires (currently cannot
be sold to Ltd CEMEX, because cannot provide necessary size fraction, cement plants
and power plants (e.g. Fortum Klaipeda in
Lithuania) can provide utilization by incineration but ask a fee for it.
Web site: http://www.liepajasras.lv/
Next steps
A 2-day workshop and site visits will be organized in the 1st week of September 2015,
which will consist of discussions/workshops
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with the Danish companies and technical experts on the project details. and a site visit to
Daibe, Krivites and Getlini landfills.
Together with the Latvian partners RTU/
Cleantech Latvia, Inno-MT will be in close
dialogue with landfill management to develop as concrete a project opportunity as
possible, and will at the same time provide
the partners with all relevant information on
Danish solutions.
The following steps are envisaged in the process leading up to the commencement of a
project:
1. Formation of the project team
2. Review of the project material, previous material and conducting new studies
3. Identify possible finance options,
where the ambition is to have European funding.
4. Final choice of project
5. Proposal of an optimal holistic solution
6. Evaluation of proposals and co-creation on final offer
7. Implementation, Communication and
visibility
Broadly, the following time lines are expected:
1. Co Creation workshop in Latvia, September 2015.
2. Project confirmation and definition of
Scope of Work by October 2015.
3. Submission of proposal by end October 2015.
4. Commencement of pilot project spring
2016.
Contact information
Morten Kildahl Sørensen
Direct phone: +45 23 26 04 60
E-mail: mks@inno-mt.dk
Innovation Network for Environmental
Technologies
c/o CLEAN
Vesterbrogade 1E
1620 Copenhagen V
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PROGRAM WEDNESDAY – SEP 2
PART 1
10:40
Arrival Riga
From Copenhagen: Air Baltic Flight BT134
From Billund: Flight BT145
11.00-11:30
Transportation to Riga Technical University
12:00-12:05
Welcome to RTU innovative landfills workshop
12.05-12:15
Presentation of COOLSWEEP project
w/ Dr.sc.ing. Romagnoli Francesco
12:15-12:30
Presentation of waste management strategy in Latvia
M.sc. Kristaps Klavenieks
12:30-14:00
Presentation of Danish companies and competences
Companies
14:00-15:00
Presentation and discussions of landfills and dump-sites needed
leachate treatment
Other landfill and dump-sites
Address: Azenes iela 12-1, LV-1048, Riga
Contact: Dr.sc.ing. Romagnoli
15.00-15.30
Tel: +371 670 899 23
Coffee break
PART 2
15.30-17.00
Discussions and co-creation of solutions for landfills and dump-sites
17:00-17:30
Discussion on next steps
19:00-21:00
Dinner and networking
Transportation to Islande Hotel
Radisson Blu
Islande Hotel
http://www.islandehotel.lv/
Kaffepause
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PROGRAM THURSDAY – SEP 3
PART 1
07:30-09:00
Transportation to Daibe
09.00-10:00
Site visit
Contact: Girts Kuplais Girts Kuplais, Manager of Waste disposal
10:00-12:00
Company presentations and co-creation of solutions
- Briefing and introduction to Daibe landfill
- Presentation of companies and technologies
- Discussion of possible solutions for implementation
12.00-13.00
Lunch and discussions on next steps
PART 2
13:00-14:30
Transport to Getlini
14:30-15:30
Site visit
Contact: Aigars Pekšens, Technical Director
15:30-17:45
Company presentations and co-creation of solutions
- Briefing and introduction to Getlini landfill
- Presentation of companies and technologies
- Discussion of possible solutions for implementation
17:45-18:00
Discussion on next steps
w/ Getlini
18:00-18:30
Transportation Riga Airport
19:30
Departure Riga
For Copenhagen: Flight BT137 or Flight
BT139
For Billund: Flight BT145
Prices
Dinner
networking
18.00Participants have to
bookand
flights
on their own.
Kaffepause
Flight t/r: euro 138,-
Copenhagen-Riga: 2 september kl: 8:05
Riga-Copenhagen: 3 September kl: 21:40
Prices checked 01/07
Hotel : Islande Hotel Riga 1 night: euro 50,http://www.islandehotel.lv/
Registration deadline 4th of August