Solids Content for Sludge Disposal or Reuse

Disposal/Reuse Method

Reason To Dewater

Required Solids (%)

Land application Reduce transport and other handling costs


Regulatory requirements Process requirements to reduce fuel required to evaporate water


a Greater than 20% in some states.

Source: USEPA, Process Design Manual: Land Application of Municipal Sludge, EPA 625/1-83-016, Center for Environmental Research Information, U.S. Environmental Protection Agency, Cincinnati, OH, 1983.

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