Waste management - Topics

Why does only 9 percent of all plastic ever get recycled? City-scale composting needs collection routes more than new technology Why does sorting recyclables at home fall apart at the collection truck? What happens to sewage sludge after a treatment plant is done with it? Is incineration with energy recovery better than landfill for a big city? Why is food waste the hardest stream to keep out of landfill? Can a city composting program pay for itself? What share of what you put in the recycling bin actually gets recycled? How do bottle deposit schemes change litter rates on the street? Why recycling aluminium saves far more energy than recycling glass Why garbage collection is skipped on some blocks for weeks Why do cities ship their waste to another state or country? What happens to a mattress or a fridge that no hauler will take? Do pay-as-you-throw garbage fees actually cut household waste? How quickly does a new landfill fill up in a growing city? What do informal waste pickers contribute to a city's recycling rate? Does a city need a separate bin for e-waste?