Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Expanded bed biological treatment /
Author Oppelt, E. Timothy. ; Smith, John M. ; Feige., Walter A.
Other Authors
Author Title of a Work
Smith, J. M.,
Feige, Walter A.,
Smith, John,
CORP Author Municipal Environmental Research Lab., Cincinnati, Ohio.
Publisher Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA-600/2-78-117
Stock Number PB-285 682
OCLC Number 04343309
ISBN pbk.
Subjects Fluidization. ; Water reuse--United States.
Additional Subjects Sewage treatment ; Contractors ; Fluidized bed processing ; Aerobic processes ; Performance evaluation ; Pilot plants ; Secondary sewage treatment ; Chemical oxygen demand ; Expanded bed biological treatment process
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  QH541.R2 EPA-, 600/2, 78-117 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-78-114 c.1 Headquarters Library/Washington,DC 03/26/2014
EJBD ARCHIVE EPA 600-2-78-117 Headquarters Library/Washington,DC 09/12/2011
ELBD RPS EPA 600-2-78-117 repository copy AWBERC Library/Cincinnati,OH 06/08/2016
EMBD  EPA/600/2-78/117 NRMRL/GWERD Library/Ada,OK 12/28/2001
ESAD  EPA 600-2-78-117 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-285 682 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation x, 56 pages : illustrations ; 28 cm.
A three-year pilot-scale research investigation at the EPA Lebanon Pilot Plant was conducted to evaluate the feasibility of a unique biological secondary treatment process, designated the Expanded Bed Biological Treatment Process (EBBT). The EBBT process is a three-phase (oxygen/wastewater/sand media) fluidized bed contacting system in which settled wastewater is passed upwards through a series of two to eight columnar reactors partially filled with fine sand particles. The velocity of the wastewater flow is sufficient to keep the sand particles in suspension. The result is a fluidized bed of sand which provides a large surface area upon which bacteria can grow. These bacteria remove contaminants from the wastewater as it passes by. An aerobic environment is provided by concurrently feeding high-purity oxygen gas into the base of each reactor or preferably by diffusing it into the wastewater before it enters each reactor. The performance of this three-phase fluidized bed biological contacting system for secondary treatment of settled wastewater was investigated in a 37.9 l/min. pilot plant. The process achieved an average TCOD removal efficiency of 75 percent and an effluent TCOD of 48.8 mg/l (13 mg/l TBOD5) at an empty bed retention time of 44 minutes and a TCOD loading rate of 6.4 kg/cu m/day. Secondary effluent guideline quality was possible at a retention time as short as 25 minutes. System MLVSS concentrations ranged from 14,000 to 16,000 mg/l, with net waste solids production ranging from 0.26 to 0.57 kg VSS/kg TCOD removed at solids retention times of 8.7 days and 5.2 days respectfully. System performance was found to be directly proportional to the ability to control excess biological growth on the sand and prevent sand particles from washing out of the system.
Issued July 1978. Includes bibliographical references (pages 54-55).