Landfills are engineered waste disposal systems that have largely replaced rubbish tips or dumps. The modern landfill is engineered to prevent loss of leachate and gases to the environment. It features impermeable membranes under it to prevent liquid leachate, segregated areas for hazardous waste, and a comprehensive monitoring program. Landfill provides a safe disposal option for wastes that can't be recycled, composted or used to generate energy. Modern landfills are engineered to very high specifications ensuring that all waste deposited in a landfill will be safely contained and, that when it is restored, the landfill will blend naturally into the surrounding landscape. Restored landfills are often used for farming, as golf courses, for forestry or as public open space.
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