Municipal Solid Waste in Central Java

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Before I leave my country few years ago, I work with waste; organic wastes, crops wastes, and municipal solid waste. When I back again, someone ask me to visit municipal solid waste (MSW) facilities in one of the biggest city in central java. This facility should be process all MSW from the city. But, they have problems in processing, so right now they just process 100 ton MSW per day. The city produce 250-300 ton MSW per day.
What can I do to help them? to improve the process, capacity, and quality
of the product. I’ll try.