Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 5

OLS Field Name OLS Field Data
Main Title Evaluation of Leachate Treatment. Volume II. Biological and Physical-Chemical Processes.
Author Chian, Edward S. K. ; DeWalle., Foppe B. ;
CORP Author Illinois Univ. at Urbana-Champaign. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinnati, Ohio.
Year Published 1977
Report Number EPA-68-03-0162; EPA/600/2-77/186b;
Stock Number PB-277 038
Additional Subjects Leaching ; Sewage treatment ; Anaerobic process ; Lagoons(Ponds) ; Organic compounds ; Reaction kinetics ; Sludges ; Ozonation ; Activated carbon ; Exchange resins ; Reverse osmosis ; Activated sludge ; Filtration ; Cost analysis ; Solid wastes ; Aeration ponds
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101LJA2.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-277 038 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 266p
Abstract
A completely mixed anaerobic filter was found to effectively remove organic matter concentrations in high-strength solid waste leachate over a range of organic loadings and shockloads. Recirculation eliminated the need for buffer solutions. Testing of a fixed film biological reactor model showed that the substrate removal rate is primarily affected by substrate concentration, specific surface area, flow rate, and temperature of the unit. Studies of the biological aerated lagoon or extended aeration process were conducted in six completely mixed reactors (no recycle) fed with undiluted leachate. Phosphate requirements of the aerobic biomass were extensively evaluated. Kinetic constants were calculated for optimum conditions. The settling and dewatering characteristics of the sludge from the aerated lagoons were studied. The combined treatment of leachate and municipal sewage in a conventional plugflow activated sludge unit was found to effectively treat high strength leachate. The test unit was not able to treat the high strength leachate at = or > 4% of the municipal sewage flow rate. Physical-chemical treatment methods are not effective in removing large quantities of organics from the leachate and that biological pretreatment is required; these methods were therefore tested using aerated lagoon effluents. Ozonation, activated carbon, anion exchange resins, and reverse osmosis were studied. Treatment costs were estimated for leachate flows of 7.6 and 76 l/min containing 5000 and 25,000 mg/l BOD5.