对延时曝气法而言，理论上污泥生成量应为零。
Theoretically sludge yield is nil for the extended aeration process.
高密度污泥水处理工艺可使污泥生成量减少到十分之一左右，极大地减轻了污泥处理的负担；
High density sludge process can decrease the volume of sludge to be disposed of by over 90%, therefore considerably reduce the cost of sludge disposal.
传统技术同时也会生成大量的污泥和新的废弃物，这也是我们想要避免的。
'Conventional techniques also result in the production of huge volumes of excess sludge and new waste, which we also want to avoid.'
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