ORGANIC WASTE'S POTENTIAL AS RENEWABLE ENERGY AT SUPIT URANG LANDFILL IN MALANG CITY

Abstract

This research are to know the correlation of the number of population with the amount of waste in
Malang city and biogas potential at Supit Urang landfill. Then also counting the percentage of biogas
which has been used as gas fuel by citizens around the landfill and as electrical energy potency. The
average amount of waste in Malang city is 410,45 ton per day. Organic waste composition at Supit
Urang landfill is 64,9% or in the average it’s about 137.989,57 kg per day. From that amount, the
average of biogas which is produced is 19.146,57 m3 per day or about 574.397,05 m3 per month.
Biogas utilization is for fuel gas by 408 houses near the location of that landfill, that’s about 18.385,19
m3 per month or about 3,2%. Therefore that’s still has 96,8% biogas potential or about 556.011,86 m3
per month which has not been utilized yet. That potency can produce electrical energy 2.613.255,75
kWh per month or 3,63 MW. If the average efficiency level of conversion from biogas to electricity is
35%, the electric potential become 914.639,51 kWh per month or as big as power station with energy
1,27 MW