AWWA ACE59828

In 1998, the Detroit Water and Sewerage Department (DWSD awarded Contract CS-1305 to Tetra Tech MPS (as lead oversight consultant) to develop the basis of design for residuals treatment facilities at four of its five WTPs (excluding Water Works Park WTP), and to assist the Department during the procurement and construction phases of this contract. The methodology for estimating the spent backwash and sedimentation sludge is presented in this paper. In addition, the basis of design for the residuals treatment facilities at the Lake Huron WTP and Southwest WTP are discussed. Includes tables, figures.