Download - Sustainable waste management in the Lahti region_Cleantech Lahti_Lahti Science and Business Park ltd
Wuxi/ Lahti cleantech co-operation options Esa Ekholm Business Director / Cleantech Lahti Lahti Science and Business Park Ltd
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Sustainable waste management in Lahti region Esa Ekholm Lahti Region Development LADEC Ltd April 2013
11 municipalities
200.000 inhabitants
39 inhabitants/km2
FINLAND
SWEDEN
UK
RUSSIA
ESTONIA
LITHUANIA
LATVIA
Lahti region
Lahti Energia
Lahti Aqua
Päijät-Häme Waste
Management
Integrated waste management system - Public Private Partnership (PPP)
Private Waste
Collection Companies
Private Recycling
Companies
SOLID WASTE SEWAGE WATER
The most important milestones for
municipal waste management of Lahti region
1993: Establishment of regional municipal solid waste company Päijät-Hämeen jätehuolto Oy / Päijät-Häme Waste Management Ltd (PHJ)
1995: Separate collection and windrow composting of bio-waste
1998: Separate collection of combustible waste from large scale estates
1998: Lahti Energia Oy (LE) started the first gasification plant
2000: Extension of separate collection of combustible waste to all households
2002: Landfill gas capture (PHJ) and utilisation in Hartwall brewery
2005: Joint composting company Kujalan Komposti Oy and composting plant
for sewage sludge of Lahti Aqua Ltd (LA) and bio-waste of PHJ
2006: Outsourcing of compost post treatment and marketing to Kekkilä Oy
2008: Outsourcing of incineration (PHJ) of mixed waste into new incineration plants and construction of transfer station (PHJ) for waste to be incinerated
2011: Construction of combustible waste treatment plant (PHJ)
2012: Starting new big gasification plant (LE)
2014 Starting new dry digestion plant for bio-waste and sludge
COLLECTED FRACTIONS
glass and metal packaging and WEEE to collection points
various hazardous fractions to different collection points
block houses with minimum of 10 flats
paper
card board
energy waste
bio-waste
mixed waste
COLLECTED FRACTIONS
home composting of bio-waste recommended
glass and metal packaging and WEEE to collection points
various hazardous fractions to different collection points
one-family and semi-detached houses of less than 10 flats
row houses minimum of 3 flats also paper
mixed waste
energy waste
paper
Kujala Waste Treatment Centre
7 big waste collection yards and
5 small ones 5 receptacles for hazardous wastes
at service stations Pharmacies receive waste medicines
86 Recycling points
Recycling centre as a partner
Collections of hazardous wastes
REGIONAL WASTE MANAGEMENT SERVICES
Solid recovered fuel (SRF)
5 PRIVATE SOLID WASTE COMPANIES
2 MUNICIPAL SOLID WASTE COMPANIES
LAHTI ENEGIA OY
- 250.000 t/a SRF waste
- 2-3 big waste truck / hour
Based on these good results, Lahti Energy resolved to build a new, 160 MW gasification power plant
old gasifier
main boiler
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Waste gasification with hot gas cleaning
Lahti Energia Oy
Waste fuel handling
New gasifiers
Gas cooler and cleaning
Old coal boiler and gasifier
New gas boiler and APC • Total investment 157 M€
• Start up April 2012
• 250.000 t/a SRF waste
• Fuel power 160 MW
• 60 MW electricity
• 90 MW district heat
• Overall efficiency 89%
Biogas and compost from sludge and bio-waste
Kariniemi and Ali-Juhakkala sewage and biogas plants (Lahti Aqua Oy)
biogas
sludge
source separated bio-waste
compost
Composting plant (Kujalan Komposti Oy)
district heating (Lahti Energia Oy)
Kekkilä Oy
15 GWh/a => 51 %
NEW BIOGAS PLANT IN 2014
biogas to natural gas net new soil fertilizer
Utilisation range of municipal solid waste
1994-2010
0
50
100
150
200
250
300
350
400
1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
11 % was utilised
in 1994
88 % utilised
in 2010
Case: Etanolix ™ Lahti
• 2005-06 side products of Lahti Grain Cluster companies were studied • 2010 started bioetanol plant of ST1 Oy (5th unit) • Feedstock from Hartwall brewery
• Excess yeast that contains alcohol • Process waters and product batches containing sugar or alcohol
• Side products from bakery industry and markets • Integrated into Hartwall’s brewery and beverage plant
ST1 Oy
ST1 Oy Etanolix™-process
Distributed bio-ethanol production St1 Oy, Finnish energy company, develops and commercializes
environmentally sustainable solutions and delivers these solutions profitably
Lahti Region Development LADEC Ltd
At your service in Cleantech business! [email protected]
Thank you !