||Single Stage High pH Lime Clarification and Carbon Treatment of Municipal Wastewater.
Viller, Roland V. ;
||Robert A. Taft Water Research Center, Cincinnati, Ohio.
( Sewage treatment ;
( Chemical removal(Sewage treatment) ;
Phosphorus inorganic compounds) ;
( Activated carbon treatment ;
Sewage treatment) ;
Calcium oxides ;
pH control ;
Performance evaluation ;
Dissolved organic matter ;
Cost estimates ;
Physical chemical treatment
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Previous work at the Lebanon Pilot Plant Facility in Ohio has shown that single stage lime clarification at pH 9.5 will remove 90% or more of the phosphorus present in either primary or, secondary effluent but only 70% of the phosphorus present in raw wastewater. Subsequent bench studies indicated that to achieve 90% phosphorus removal from raw wastewater it is necessary to lime to a pH of 11. The report presents the results of the pilot study that followed in which raw wastewater was lime clarified at pH 11 and then granular carbon treated. (Author)