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Mar 1, 2013 · For example, sludge with 20% water content cannot meet the demand of brick production, which requires sludge with at least 40% water content mixed with other raw materials. Furthermore, the costs of heat drying could be extremely high at approximately 450 USD/DT ( Hong et al., 2009 , Ma et al., 2012 , U.S. Environmental Protection Agency, 2006 ).
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Jun 7, 2023 · Co...