Study on Dry-basis Separation Test for Urban Residential Waste

Since its implementation in 2000, China's urban domestic waste separation pilot program has achieved little success. The root cause lies in the lack of moisture control for crude waste from the source. If wet-basis waste is placed in bags, collected by waste bins/cans and transferred by vehicles, waste is difficult to be separated for collection, transport and disposal, and a large amount of materials lose the value of recycling. High moisture and rapid reproduction of microbes leads to serious pollution, collection and transfer of daily waste upon generation and soaring transport cost. Unsorted waste also greatly increases the difficulty in collection, transport and disposal. The study on dry-basis separation test helps achieve the separation and temporary storage of domestic waste through moisture control, facilitating the low-frequency placement, collection and transport of domestic waste. Based on the test, a new concept of low-frequency direct transport and separation of domestic waste on a dry basis is raised, and corresponding key technical equipment to be developed is specified.