Palu in Indonesia and the Swedish city Boras collaborate on how to take care of the waste in city dumps.
Photo: Ed Wray
Palu and Borås make waste valuable
“The waste problem in Palu stems from the way people see garbage as a worthless product. So the waste piled up without being processed and became a major problem for the city,” says Deputy Mayor Tombolotutu in the city of Palu, on the island of Sulawesi in Indonesia.
We wanted to solve this issue by utilizing the waste to produce biogas. “We had the resources, but we did not have the knowledge, experience and equipment to proceed.”
The solution was to be found in Borås, Sweden, with which Palu developed a partnership involving many partners. In Sweden: SP Technical Research Institute of Sweden, the City of Borås, the University of Borås and Borås Energy and Environment. In Indonesia: the City of Palu and Tadulaku University. The Swedish company Biogas Systems is responsible for the biogas solution and supplies and installs the technical equipment.
The waste management process begins down in the city, where waste is sorted before being brought to the dump. The organic waste brought to the dump is made use of in a biogas facility.
“We cover the waste deposits and install a gas recovery system that allows us to collect the methane gas formed spontaneously in the decomposition process,” explains Tony Zetterfeldt at Biogas Systems.
Methane is a highly aggressive greenhouse gas – 21 times more dangerous for the greenhouse effect than carbon dioxide. The biogas facility sucks up the gas, preventing it from dissipating into the atmosphere. The gas can instead be used to generate electricity and hot water.
In parallel, a social programme is in operation for the 86 families that live and work on the dump. Their homes are simple huts that they have built themselves from materials they have found on the site.
“Together with the municipality, we have developed a plan of action so that those who live here and make their livelihoods from the waste, can gain a better life. They are to be given new houses and will sort waste in a better way,” explains Jessica Magnusson, project coordinator at SP.
The new houses are being built and those who work at the dump are to be given protection from the sun and will not have to walk in the waste they are sorting. For the rst time, they will have electricity to light their homes and for cooking. Showers are also to be installed to improve sanitation and the families’ children will have the opportunity to attend school.
Another objective is for the biogas facility to provide the city with electricity generated from its waste.
“Most important of all is that those who live here will have a better existence,” says Jessica Magnusson. “Actually, that has been my personal goal ever since I rst met these people on the dump and saw how they and their children lived. It moved me very deeply.”
In Jessica Magnusson’s view, it is crucial to nd a good partner at the local level. She explains that the team in Palu is completely fantastic and that politicians in Palu have a vision for what they want for their city, which is also positive.
Deputy Mayor Tombolotutu also speaks of attitudes, of changing people’s views regarding waste and the urgency of this.
“We can start small but we have to think big for the future. We have to think globally. Think big, start small but move fast,” he says.
All of the partners are set on continuing the partnership. Swedish knowledge on environmental management is highly sought after. And the need for environmental solutions in Indonesia is considerable.
Partners: Palu City, Tadulaku University, Biogas Systems AB, SP Technical Research Institute of Sweden, the City of Borås and Borås Energi och Miljö.