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Municipal Wastewater Treatment Plant Model with Sludge Pretreatment Incorporation for Design and Feasibility Determinations

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Sludge pretreatments (SPTs) can be utilized to ameliorate anaerobic digestion performance by lysing waste activated sludge cells and releasing intracellular matter (Cacho Rivero et al., 2006). This material is now more accessible to the anaerobic microorganism consortium (Eskicioglu et al., 2007). Mechanical, thermal, chemical, biological, and combinations of these processes make up the five SPT categories. Under optimal conditions each process hydrolyses particulate matter and subsequently provides seemingly worthwhile improvements in solids reductions and rate of biogas production (Benabdallah El-Hadj et al., 2007). A versatile wastewater treatment plant spreadsheet model (referred to as PretrAD) that incorporates all unit processes and their performances was created to ascertain the design and financial feasibilities of SPT incorporation. PretrAD was validated by comparison to a third-party commercial software, Plan-It STOAT. Over 320 runs were conducted and both practical and impractical SPT incorporation scenarios were obtained. PretrAD was deemed a crucial site-specific SPT incorporation tool.

Keywords: Pretreatment; chemical; design; digestion; energy; mechanical; model; thermal

Document Type: Research Article


Publication date: January 1, 2010

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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