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Method and apparatus for recycling sewage sludge utilizing spent water-softener lime
Method and apparatus for recycling sewage sludge utilizing spent water-softener lime
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机译:利用废软水石灰回收污水污泥的方法和设备
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摘要
A method and apparatus are disclosed for mixing sewage sludge with spent water-softener lime in a ratio of approximately 10:1 on a wet basis. The mixture is introduced to a rotary pre-dryer kiln and a rotary combuster kiln to kill pathogens. An ash by-product and gases are thereby produced. The ash by-product can be disposed of at much less cost or can be incorporated in a variety of applications such as an aggregate substitute.
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