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AWWA ACE70839
- Minimizing Discharges of Water Treatment Plant Residuals: Opportunities and Obstacles
- Conference Proceeding by American Water Works Association, 11/01/2009
- Publisher: AWWA
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This powerpoint presentation begins by providing a brief overview of reasons for minimizing discharges. Sources of water treatment plant (WTP) residuals are presented, along with a minimization hierarchy that includes: discharge equalization; residuals minimization; residuals treatment; and, zero liquid discharge. Presentation summary includes the following: many alternatives are available to minimizedischarges of water treatment plant residuals;minimization techniques may reduce residualsvolume, mass, or both;specific alternatives may or may not befeasible based on specific plant conditions; and,moving down the minimization hierarchy canlead to greater reduction in discharges, butusually increases complexity and cost. Includes figures.
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