(best examples and good practices) on household organic waste ...

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The restaurants can also have a special container for the food waste delivered.
The food waste is placed in a bag inside the container, which is stored cold.
These types of bags are compostable <strong>and</strong> digestible. The waste is picked up by a
waste vehicle, particularly designed for the wet food waste, <strong>and</strong> transported to
the treatment plant n Huddinge, but to their digesting plant Ecoferm, (Picture
38.).
Picture 38.: The Ecoferm biogas plant in Huddinge
(Chemical Engineering <strong>and</strong> Technology department KTH., 2007)
The Ecoferm plant is a pilot plant, receiving 4 000 tones of organic waste yearly.
The gas produced is not upgraded to fuel quality, but used for district heating.
The grease trap removal sludge from restaurants, cafés, institutional kitchens
etc is collected by slurry exhauster vehicles <strong>and</strong> delivered to the wastewater
treatment plant at Henriksdal. The sludge is digested there <strong>and</strong> Biogas is
produced <strong>and</strong> upgraded to vehicle fuel.
At Henriksdal liquid food waste from market halls in Stockholm is treated as
well. The waste is collected by slurry exhauster vehicles <strong>and</strong> pumped into the
plant for co-digestion with the sewage sludge. An increase of the separation
<strong>and</strong> biological treatment of municipal organic waste is a project suggested in
Stockholm. The aim, set by Stockholm Waste Management Committee in 2003,
is to treat 33 000 tones of food waste biologically in 2010. This represents 35 %
of the total food waste from households, restaurants, institutional kitchens <strong>and</strong>
grocery stores in Stockholm, <strong>and</strong> is a measure to reach the national 35%-goal