Search Results for the EPA National Library Catalog

Items Found: 5282
Showing: Items 501 - 550
Your Search: (SUBJECT=Purification)


 
 
 
PREV 1 ... 6 7 8 9 10 11 12 13 14 15 16 ... 106 NEXT
Select Item Title Year Published
Assessment of metals in Massachusetts municipal wastewater treatment facilities 1988
Assessment of microbial and disinfection byproduct research needs : final report / 2002
Assessment of mutagenic potential of mixtures of organic substances in renovated water / 1981
Assessment of near-stream ground water-surface water interaction (GSI) of a degraded stream before restoration / 2008
Assessment of NOx flue gas treatment technology / 1980
Assessment of on-site graywater and combined wastewater treatment and recycling systems / 1992
Assessment of organic emission factors / 1978
Assessment of particle control technology for enclosed asbestos sources : phase II / 1976
Assessment of polyelectrolytes for phosphorus removal / 1976
Assessment of potable water membrane applications and research needs 1989
Assessment of reconstruction costs and debt management for wastewater utilities affected by Hurricane Katrina 2006
Assessment of single-stage trickling filter nitrification / 1991
Assessment of single-stage trickling filter nitrification / 1991
Assessment of technology for control of toxic effluents from the electric utility industry / 1978
Assessment of the electrochemical reduction of the perchlorate ion 2001
Assessment of the need for NOx flue gas treatment technology / 1978
Assessment of the nitrifying ability of activated sludge 1980 (tentative methods) 1983
Assessment of the use of fugitive emission control devices / 1979
Assessment of three technologies for the treatment of cooling tower blowdown / 1979
Assessment of vortex solids separators for the control and treatment of wet-weather flow. 1996
Assessment of wastewater management, treatment technology, and associated costs for abatement of PCBs concentrations in industrial effluents : task II for Environmental Protection Agency, Office of Toxic Substances / 1976
Association of Metropolitan Sewerage Agencies silver discharges survey : final report / 1993
At a Glance : More action is needed to protect water resources from unmonitored hazardous chemicals. 2014
At a Glance : the State of Colorado Did Not Fully Assure That Funds Intended to Treat Mining Wastes and Remove Contaminants from Water Were Effectively Spent. 2013
Atrazine : health advisory / 1987
Atrazine : health advisory / 1988
Audiovisual instructional units for water pollution control training programs / 1974
Autoheated, aerobic thermophilic digestion with air aeration / 1982
Automated measurement of aqueous ozone concentration 1993
Automated water monitoring instrument for phosphorus contents / 1973
Availability and suitability of municipal wastewater information for use in a national water-quality assessment : a case study of the upper Illinois River basin in Illinois, Indiana, and Wisconsin / 1990
Availability of external review draft health advisories for 50 National Pesticide Survey analytes / 1987
Available models for estimating emissions resulting from bioremediation : a review / 1990
Available models for estimating emissions resulting from bioremediation processes : a review / 1990
Available models for estimating emissions resulting from bioremediation processes : a review / 1990
AWWA small systems field guide : water and wastewater / 2014
AWWA standard for aluminum sulfate-- liquid, ground or lump. 1993
AWWA standard for ammonium sulfate. 1996
AWWA standard for anhydrous ammonia 2005
AWWA standard for calcium chloride. 1996
AWWA standard for calcium chloride. 1990
AWWA standard for carbon dioxide 1995
AWWA standard for carbon dioxide. 1989
AWWA standard for cement mortar lining of water pipelines in place: 4 in. (100 mm) and larger 2006
AWWA standard for disinfection of wells 1998
AWWA standard for disodium phosphate, anhydrous 1995
AWWA standard for disodium phosphate, anhydrous. 1988
AWWA standard for ductile-iron compact fittings for water service 2006
AWWA standard for ferric sulfate 2006
AWWA standard for ferric sulfate 1961
PREV 1 ... 6 7 8 9 10 11 12 13 14 15 16 ... 106 NEXT

Save, Print or Email Selected Records