Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Treatment Techniques for Removing Phosphorus from Municipal Wastewaters.
Author Conver, John J. ;
CORP Author Environmental Protection Agency, Cincinnati, Ohio. Advanced Waste Treatment Research Lab.
Year Published 1970
Report Number 07760; 17010-01/70
Stock Number PB-199 072
Additional Subjects ( Water pollution ; Phosphates) ; ( Sewage treatment ; Phosphates) ; ( Chemical removal(Sewage treatment) ; Phosphates) ; Precipitation(Chemistry) ; Coagulation ; Sedimentation ; Calcium oxides ; Neutralizing ; Cost estimates ; Feasibility ; Particles ; Water pollution control
Library Call Number Additional Info Location Last
NTIS  PB-199 072 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 44p
Biological uptake, chemical precipitation of soluble phosphorus, and settling or filtration of particulate phosphorus are the major removal mechanisms used in phosphorus removal. At present, chemical precipitation is the most universally applied method. The wide variety of chemical reactions which lead to phosphorus precipitation allows much flexibility of operation to plant operators. In dealing with raw sewage, primary effluent, or secondary effluent the size of the plant, influent waste water characteristics phosphorus discharge standard, and the types of other processes used in the treatment train must all be considered. In addition to phosphorus removal, higher levels of BOD and suspended solids removals are customarily are customarily obtained when some type of phosphate reduction mechanism is employed. Each of the mechanisms described here have been analyzed both with respect to technological and economic feasibility. Costs ranged from 13 cents/1000 gallons for two-stage lime treatment of 1 mgd to achieve 97% removal, to a potential low of $.015/1000 gallons using waste pickle liquor to achieve a reduction of 80%. (WRSIC - abstract)