Which of the following methods is NOT used for solid waste disposal?

The method that is accurately identified as not being used for solid waste disposal is incineration. Incineration, while a process that involves burning waste, is primarily a method of waste treatment rather than disposal. It reduces the volume of waste by converting it into ash and gas, which can then be further processed.

In contrast, composting, recycling, and simply throwing away waste are all recognized methods of solid waste disposal. Composting involves the biological decomposition of organic materials, turning waste into valuable compost, which can enhance soil quality. Recycling entails processing materials like paper, glass, and plastics to make new products, effectively reducing the need for raw materials and limiting waste. The term 'throwing away' typically refers to discarding waste in landfills, a common disposal method where solid waste is buried.

Thus, incineration stands out as a method that is more about treatment than straightforward disposal, relating to how the waste is managed rather than the end result being waste management itself.