Record Display for the EPA National Library Catalog

RECORD NUMBER: 39 OF 288

Main Title Combined Treatment of Municipal Wastewater and Acid Mine Drainage.
Author Pearso, Frank H. ; Nesbit, John B. ;
CORP Author Pennsylvania State Univ. University Park. Inst. for Research on Land and Water Resources.
Year Published 1972
Report Number DI-14-31-0001-3636; OWRR-B-042-PA; 13656,; B-042-PA(1)
Stock Number PB-222 936
Additional Subjects ( Sewage treatment ; Coagulation) ; ( Coagulants ; Mine waters) ; ( Mine waters ; Sewage treatment) ; ( Phosphorus ; Chemical removal(Sewage treatment)) ; Precipitation(Chemistry) ; Suspended sediments ; Iron ; Acidity ; Neutralizing ; pH control ; Feasibility ; Cost estimates ; Performance evaluation ; Pipeline transportation ; Mine acid drainage ; Water pollution control
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-222 936 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 50p
Abstract
Acid mine drainage (AMD), a serious water pollutant in many states, may be an economical source of ferrous iron for the chemical coagulation of municipal wastewater. AMD would then be neutralized by the alkalinity in wastewater. Samples of AMD and raw wastewater were collected from sites in Pennsylvania where AMD was found close to a wastewater treatment plant. The samples were mixed in varying ratios, then processed at controlled pH in a laboratory scale treatment plant that provided flocculation and sedimentation. The optimal pH was 8 for a maximum reduction in phosphorus, ferrous iron, and turbidity. At pH 8 the median reduction in total phosphorous was 95 percent when the molar ratio of ferrous iron to total phosphorous was 2. Ferrous iron was almost completely removed at pH 8. A cost analysis is given for the maximum distance for which it is economical to pump AMD for combined treatment with wastewater. (Modified author abstract)