Päijät-Häme Waste Management LtdSapelikatu 7, FI-15160 Lahti, Finlandtel. +358 3 871 1710Service and sorting information desk +358 3 871 1766Services for businesses +358 44 370 0808phj.fi

SystemCertification

ISO 9001ISO 14001

OHSAS 18001

PADASJOKI

ASIKKALA

HEINOLA

HOLLOLA

SYSMÄ

LAHTI

ORIMATTILA

MYRSKYLÄPUKKILA

KÄRKÖLÄ

A large proportion of waste reclaimed through recycling promoted

Reclaiming waste significantly reduces environmental hazards. Thanks to new material and energy recovery solutions, only 3 % of incoming waste now ends up in landfill. In the company´s operating area around 55 % of waste is used in energy production, while approximately 42 % is recycled as material. The company’s strategic goals include increasing the proportion of waste used in materials production to 50 % by 2020.

Processing water from Kujala Waste Centre

Filtration water from the landfills and other dirty water from waste management processes and facilities are treated at Lahti Aqua Ltd´s Ali-Juhakkala wastewater treatment facility.

Studies indicate that the levels of hazardous substances contained in the wastewater released into the drainage system from the Waste Centre are low. However, the quantity of nitrogen in the wastewater directed from Kujala to the wastewater treatment facility annually corresponds to the amount of nitrogen contained in the domestic wastewater generated by approximately 5,500 people.

Rainwater from the area where contaminated soil is treated and similar outdoor areas is channelled into the ground after sedimentation and sand filtration. Regular rainwater from roads, fields and yards is channelled into the ground as is.

The volume of wastewater pumped into the sewage system and rainwater pre-treated in the area are monitored in real time. The pumping facilities are connected to an automatic alarm system in case of malfunctions. The quality of the wastewater and rainwater, as well as the surface and ground water in the area, are monitored in accordance with the requirements of the environmental permit. Water samples are taken at approximately 30 locations at Kujala two to four times a year.

Making landfill gases into energy

As waste decomposes in oxygen-free conditions in a landfill, landfill gas is generated. This biogas consists mainly of methane and carbon dioxide with small amounts of odourous sulphur compounds.

Landfill gas has been collected at Kujala since 2002. Most of the gas collected is piped to Hartwall´s heating station, where it is used to generate process steam for the soft drinks plant. The rest of the gas is used at Kujala Waste Centre, where a micro-turbine generates electricity and heating. Collecting landfill gas cuts down on odours in the local environment and reduces the amount of greenhouse gases released into the atmosphere.

We care for the environment

Kujala Waste Centre

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17

WASTE IS BEAUTIFUL

Päijät-Hämeen Jätehuolto Oy

WASTE IS BEAUTIFUL

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Kujala Waste Centre takes in waste from communities and production facilities for interim storage, handling, recovery, transfer and final disposal.

Kujala Waste Centre is the main site of Päijät-Häme Waste Management Ltd (PHJ) and its only waste treatment site. Completed in 2001, the site covers 70 hectares in total.

Approximately 45 people work at the site daily, employed by PHJ and contractors. In addition, the site is home to LABIO Ltd’s biogas and composting plant, Tarpaper Recycling Finland Ltd’s roofing felt processing facility, Gasum Ltd’s biogas production and upgrading facility, NCC Roads Ltd’s asphalt facility, and Kekkilä Ltd’s soil processing plant.

Kujala Waste Centre

PHJ - visionary in waste management

In 1993 founded Päijät-Häme Waste Management Ltd (PHJ) is owned by 10 municipalities. It serves an area with over 200,000 residents, thousands of summer residents and about 13,000 businesses. Statutory municipal waste management operations are supported by marked-based operations.

Approximately 200,000 tonnes of waste is received each year. Over 90 % of waste received at the centre is reclaimed. After appropriate processing, the waste is recovered as recycled material or used in energy production. Only a fraction of the waste is disposed of at a landfill site in accordance with the environmental permit.

PHJ strives to provide high-quality services competitively, develop waste management expertise into a booming service business, ensure a high degree of recycling and minimise environmental hazards. The company also invests in the well-being and work ability of the staff.

Operations management system consists of three processes, designed in accordance with relevant standards: the environmental management system (ISO 14001), the quality management system (ISO 9001) and the occupational health and safety system (OHSAS 18001). The system is certified.

1. Offices, emplyee facilities and equipment storageBuilding completed in 2001, expanded in 2003 and 2011.

2. ”Jälkimaininki” (the Aftermath) site-specific artwork The piece of site-specific art, designed by the architecture firm of Tapani Vuorinen, was created from excess soil and recycled glass to add visual interest to the reception area at the waste centre in 2001.

3. PILLERI waste reception stationThe reception station accepts waste brought in via car or vanload. Pilleri provides services particularly for households and small businesses. Pilleri serves about 80,000 customers annually and customer satisfaction ratings have been consistently high. Pilleri is one of PHJ´s seven waste reception stations and it was taken in use in 2001.

4. WEIGH STATION, waste receptionThe weigh station weighs all waste tranported into and out of the centre, as well as internal transfers. Loads are checked, logged and invoiced.

5. LATE, sorting plantThe plant processes construction and mixed waste, waste for energy production, and waste generated by industry. From these waste types, the plant separates fibres, plastics and various metals that can be recycled or processed further. Non-recyclable waste is used in energy production. Only small amount of waste such as concrete and bricks are placed in the landfill. The innovative and modern sorting plant utilizes the newest mechanical waste-sorting techno-logies. Waste separation is based on material size, shape, optical and fysiological features. Operating a two-shift system, the plant has an annual capacity of 65,000 tonnes.The plant opened in 2016.

6. MURRE, treatment of energy waste and wood wasteThe facility transforms wood waste and waste with plastic or fibre content which is unsuitable for recycling into fuel (SRF) for power plants. During the process the waste is crushed, and magnetic and non-magnetic metals are removed. The capacity for treatment is 60,000 tonnes of waste per year. The facility was introduced in 2011.

7. OILI, facility for treatment of liquid waste/sludgeThe facility uses the Geotube process, which mechanically handles liquid waste. The sludge is pumped into a geotextile sack whichallows liquid to pass through it while retaining solids inside. This

process is suitable for sludge from rainwater tanks and oil and grease traps as well as sewage sludge and industrial sludge. The facility can handle approximately 10,000 tonnes of liquid waste each year. The facility was taken in use in 2007.

8. Contaminated Soil Storage Areas (CSSA)Severely contaminated soil and soil containing wastes are pre-tre-ated by sifting after which the soil is stabilised and compacted into a non-toxic form. The compacted soil is utilised in embankments at the waste site or as preliminary cover for the landfill accordance with its environmental permits. CSSA sites cover 2.5 hectares.

9. Decommissioned landfillThe old landfill, in use since 1950s, was closed in 2007. It covers approximately 24 hectares. The landfill embankments contain col-lection wells and channels for landfill gases. The decommissioned landfill will continue to be maintained and inspected for at least 30 years.

10. Current landfillCurrent landfill covers 5.4 hectares. The foundations were constructed in accordance with the most recent EU requirements. The waste in the landfill is not currently recoverable.

11. Recyclable waste groundsTarmacked recyclable waste grounds serve as interim storage for twigs and brushwood, garden waste, tree stumps, metal, concrete, bricks, asphalt, gypsum, roofing felt, windows with their frames and companies’ plastic packaging. Brushwood and stumps are turned into chips. Shredded brushwood goes to energy generation, while chips from stumps are used as support material in the composting plant. Most of the garden waste is transferred to the composting plant to be used as mixing and support material, while some of it is suitable for biogas generation. Concrete and bricks are crushed and utilised in landscaping and road construction. The majority of recyclable waste is transferred to material recycling facilities that refine and utilise it in the production of new material. Metals are used as raw material by the steel and foundry industry. Glass waste goes to the production of glass packaging, glass wool and foam glass. In addition to asphalt waste, bitumen roofing material can be used in the manufacture of asphalt. Gypsum waste serves as raw material in the production of new gypsum boards, while plastic packaging from companies is used to manufacture plastic products. Approximately 5.3 hectares is used for the reception and storage of recyclable waste.

12. Seepage basins and wastewater pumping stationAround 150,000 – 200,000 m3 of wastewater is directed to the de-tention basin for concentrated wastewater and to Lahti Aqua Ltd’s wastewater treatment facility from outdoor areas. Seepage water from landfill sites accounts for the majority of these wastewaters. The mild wastewater generated in the area is collected in a sepa-rate detention basin. Each year, approximately 10,000 -20,000 m3 of wastewater is released into the surrounding environment via a sand filtration.

13. Landfill gas pumping facilityLandfill gas collected at the decommissioned landfill is channelled into the pumping facility. Most of the gas collected is piped to Hartwall´s heating station, where it is used to generate process steam for the soft drinks plant.

14. Micro-turbine plantSome of the landfill gas is directed to a micro-turbine plant, where it is used to produce electricity and heat for the plants and office premises located at the Kujala site.

15. LABIO Ltd, biogas and composting plantThe biogas plant produces raw biogas from the biowaste and gar-den waste collected separately and wastewater sludge via a dry fermentation process. The remaining material is transferred to the composting plant for composting. The composting products are used in agriculture and the manufacture of growing media. The plant can handle approximately 80,000 tonnes each year. The plant covers approximately 5 hectares.

16. Gasum Ltd, biogas upgrading facilityThe facility upgrades the raw biogas generated by LABIO Ltd’s biogas plant, producing biogas that is similar to natural gas in composition. The biogas, which is suitable for use as transport fuel, is then fed to Gasum’s natural gas network.

17. Kekkilä Ltd, soil processing plantThe plant processes mineral soil and compost products from LABIO Ltd’s composting plant to produce soil.

18. Tarpaper Recycling Finland Ltd, processing facilityThe company receives, stores and processes bitumen roofing ma-terial at Kujala Waste Centre. Roofing felt is crushed and used in asphalt production to replace bitumen as raw material.

19. NCC Roads Ltd, asphalt production facilityUsing also crushed bitumen produced from roofing felt as its raw material, the company manufactures asphalt in its facility at Kujala Waste Centre.

20. Lahti Energia Ltd, landfill site for ashPHJ operates Lahti Energy Ltd’s landfill site where sand, lime and ash generated by Kymijärvi I and II power plants are stored and disposed of.

Kujala Waste CentreSapelikatu 7, Lahti, Finlandphj.fi

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