01137cam a22002534a 4500 0071453032 (acidfree paper) 628.3 WAT N-1, P-100. Upgrading and retrofitting water and wastewater treatment plants / Water Environment Federation. New York : McGraw-Hill, c2005. xxi, 230 p. : ill. ; 25 cm. WEF manual of practice ; Prepared by Upgrading and Retrofitting Water and Wastewater Treatment Plants Task Force of the Water Environment Federation. 0 0 0 628_300000000000000_WAT |MC||E 44175 Sewage disposal plants Retrofitting. 44176 Sewage disposal plants Upgrading. 44177 Water treatment plants Retrofitting 44178 Water treatment plants Upgrading. 44179 Water Environment Federation. 5759 http://www.loc.gov/catdir/toc/mh051/2004061046.html http://www.loc.gov/catdir/bios/mh051/2004061046.html http://www.loc.gov/catdir/description/mh051/2004061046.html ddc BK 547994 547994 0 0 ddc 0 0 MCE MCE 2014-08-13 0 628.3 WAT MCE-36672 2014-08-13 2014-08-13 BK