Plant is prepared to treat 35.000 tons of waste per year coming from selective collection.
Visit to Lipor s Organic Recovery Circuit The Organic Recovery Circuit included a visit to the Home Composting Plant
Horta da Formiga – and a visit to the Composting Plant, where the organic waste
is processed to be transformed in compost for agricultural use. The Composting Plant has the capacity to treat about 60.000 tons/year of organic waste and produces about 20.000 tons/year of high quality compost. Any residuals produced from non-organic material found in the waste such as paper, plastics etc is sent to the energy recovery circuit.
Visit to Lipor’s Energy Recovery Circuit– Maia
The “Energy Recovery Circuit and Sanitary Landfill” included a visit to the Energy Recovery Plant, located 8 kilometres from the center of Porto and to Lipor’s Sanitary Landfill. The Plant, with two lines of treatment with continuous and almost automatic production, combusts nearly 1.000 tons of waste a day, producing 25 MWe of electrical power, enough to supply a population group of around 150 thousands.
The Lipor’s Sanitary Landfill located next to the Energy Recovery Plant and was designed under strict environmental control and protection standards. The amount of residue and ash deposited on this landfill is estimated at about 75.000 tons annualy
Technical Details: 1. Capacity :1.000 tpd MSW x 330 days
10 years of operation
26 MWe, 60 tph steam x 2 lines
Incineration temperature at the time of visit was on the grate 1050°C and flue gas temperature 950-970°C. Normal operating temperatures on the grate are (1000-1200°C)
Gate fee 40 €/ton
Electricity selling price 80 €/MWh
Semi wet scrubbers, SNCR (levels of NOx emissions 150-190 mg/Nm3)
Solidification of fly ash with cement, on site (0,2 ha), and then is driven to landfill